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HomeMy WebLinkAboutMiscellaneous - Exception (333)Weston Solutions, Inc. 1 Wall Street Manchester, New Hampshire 03101-1501 603-656-5400 • Fax 603-656-5401 p =j'�f �® www.westonsolutions.com Office of Data Entry Massachusetts Department of Environmental Bureau of Waste Site Cleanup Northeast Regional Office 205B Lowell Street Wilmington, MA 01887 Re: Phase V — Inspection and Monitoring Report Merrimack Valley Works North Andover, Massachusetts MDEP RTN: 3-00174 Dear Sir/Ms.: SEP 1 9 2007 TOWN O- :,C . �nv:• FaEALTH IJ1=P,A,-Z i --NT F7C1�- 18 September 2007 Work Order No. 11621.039.001 Weston Solutions, Inc. (WESTON`) is submitting the attached Phase V — Inspection and Monitoring Report on behalf of Lucent Technologies, Inc. for the areas associated with RTN 3-00174 of the Merrimack Valley Works in North Andover, Massachusetts. This submittal includes: ■ Comprehensive Response Action Transmittal Form (BWSC-108). ■ Remedial Monitoring Reports (BWSC-108A and BWSC-108B) for four remediation systems in operation at this site. ■ Phase V — Inspection and Monitoring Report (includes a CD with the full document including Appendices). By copy of this letter, the attached document has been submitted to the Selectman's Office and the Board of Health for the City of North Andover, Massachusetts. If you have any questions or comments regarding this submittal, please do not hesitate to contact me at (603) 656-5412. Very truly yours, STT SO UrJONS, INC. �cc�cC Frederick R. S s E. Project Manager FRS:kmc cc: G. Vierkant, Lucent Technologies F. Lilley, EA Engineering Ellen Keller, Ozzy Properties Board of Health, Town of North Andover Selectman's Office, Town of North Andover an employee -owner/ company GAPROJECTS\11621039\0&M_and_Monitoring\O&M_Reports\DecO5-May06Repott\cover Ietter.DOC ter WESTON SOLUTIONS, INC. SOLUTIONS SEP 19 2��7 n nLi n n u n Lj n n U PHASE V INSPECTION AND MONITORING REPORT BUILDINGS 30, 51 AND 70/71 REMEDIATION SYSTEMS MERRIMACK VALLEY WORKS NORTH ANDOVER, MASSACHUSETTS 1 DECEMBER 2005 - 31 MAY 2006 RTN: 3-00174 Prepared for: LUCENT TECHNOLOGIES, INC. 2101 West Chesterfield Blvd. Springfield, Missouri 65807 Prepared by: WESTON SOLUTIONS, INC. One Wall Street Manchester, New Hampshire 03101-1501 August 2007 Work Order No. 11621.039.001 U Phase V Inspection and Monitoring Report r� I December 2005 - 31 May 2006 !" Buildings 30, 51 and 70/71 Remediation Systems LJ TABLE OF CONTENTS Section Page 9 1. INTRODUCTION....................................................................................... ............1-1 1.1 SITE DESCRIPTION..........................................................................................1-2 U 1.2 REMEDIATION SYSTEMS DESCRIPTION....................................................1-2 1.2.1 Building 30.................................................... ........................................ 1-3 1.2.2 Building 70/71......................................................................................1-4 u1.2.3 Building 51..................... ....................................................................... 1-5 2. INSPECTION, REMEDIATION, AND MONITORING.......................................... 2-1 2.1 BUILDING 30 REMEDIATION SYSTEM........................................................ 2-1 2.1.1 Type and Frequency of Building 30 Inspection and Monitoring.......... 2-1 n 2.1.2 Description of Significant Modifications to the Building 30 Inspection and/or Monitoring Program ................................................. 2-2 2.1.3 Conditions Affecting Performance of Building 30 Remediation r' System and Corrective Actions............................................................. 2-3 2.2 BUILDING 70/71 REMEDIATION SYSTEM ................................................... 2-3 n 2.2.1 Type and Frequency of Building 70/71 Inspection and Monitoring..... 2-3 2.2.2 Description of Significant Modifications to the Building 70/71 Inspection and/or Monitoring Program ................................................. 2-5 n 2.2.3 Conditions Affecting Performance of Building 70/71 Remediation Ln System and Corrective Actions............................................................. 2-5 2.3 BUILDING 51 REMEDIATION SYSTEM........................................................ 2-6 n 2.3.1 Type and Frequency of Building 51 Inspection and Monitoring .......... 2-6 2.4 SUPPLEMENTAL PHASE IV REMEDIAL ACTIVITIES ............................... 2-6 n 2.4.1 Building 70/71 In Situ Chemical Oxidation......................................... 2-7 L, 2.4.2 Building 30 In Situ Chemical Oxidation Remediation ......................... 2-8 3. RESULTS OF INSPECTION AND MONITORING PROGRAM ........................... 3-1 n 3.1 RESULTS OF BUILDING 30 INSPECTION AND MONITORING PROGRAM............................................................................... 3-1 n 3.1.1 Building 30 Remediation System Monitoring and Results .................. 3-1 u 3.1.2 Building 30 Remediation System Contaminant Removal Rate............ 3-2 3.1.3 Building 30 Indoor Air Monitoring and Results................................... 3-2 n 3.1.4 Building 30 Groundwater Monitoring and Results ............................... 3-5 3.2 RESULTS OF BUILDING 70/71 SAMPLING AND MONITORING PROGRAM............................................................................... 3-5 n 3.2.1 Building 70/71 Remediation System Monitoring and Results ............. 3-6 3.2.2 Building 70/71 Soil Vapor Extraction System Monitoring and Results3-6 n 3.2.3 Building 70/71 Remediation System Contaminant Mass Removal....... 3-7 U GAPROJECTS\11621039\0&M_and_Monitoring\O&M_Reports\DecO5-May06Report\Report0506.doc 14 September 2007 n 11 Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems LIST OF TABLES Title Table 1 Indoor Ambient Air Sampling Results Table 2 SVE Performance Data, Building 30 Remediation System Table 3 Historical Results of Vapor Sampling and Analysis, Building 30 Remediation System Table 4 Historical Groundwater Analytical Results for VOCs, Buildings 30 and 70/71 Remediation System Table 5 Vapor Flow Rates and PID Screening Data, Building 70/71 Remediation System Table 6 Results of Vapor Sampling and Analysis, Building 70/71 Remediation System Table 7 Results of Monthly Influent and Effluent Monitoring, Building 51 Remediation System GAPROJECTS\11621039\0&M_and_Monitodng\O&M_Reports\Dec05-May06Report\Report0506.doc 14 September 2007 V Phase V Inspection and Monitoring Report I Decearher 2005 - 31 May 2006 `= Buildings 30, 51 and 70/71 Remediation Systems V TABLE OF CONTENTS (Continued) Section Page u 3.2.4 Building 70/71 Groundwater Monitoring and Results, Performance of In Situ Chemical Oxidation Program ............................................... 3-7 3.2.5 Building 70/71 Indoor Air Monitoring and Results ............................ 3-11 3.3 RESULTS OF BUILDING 51 SAMPLING AND n MONITORING PROGRAM............................................................................. 3-12 M Lt n U n �L n 4. SUMMARY AND CONCLUSIONS............................................................................ 4-1 4.1 BUILDING 30 REMEDIATION SYSTEM........................................................ 4-1 4.2 BUILDING 70/71 REMEDIATION SYSTEM ................................................... 4-2 4.3 BUILDING 51 REMEDIATION SYSTEM........................................................ 4-3 5. RECOMMENDATIONS ............................... :..................................................... .......... 5-1 5.1 BUILDING 30 REMEDIATION SYSTEM........................................................ 5-1 5.2 BUILDING 70/71 REMEDIATION SYSTEM ................................................... 5-1 5.3 BUILDING 51 REMEDIATION SYSTEM........................................................ 5-2 5.4 INSPECTION AND MONITORING REPORTS ............................................... 5-� APPENDIX A MASSACHUSETTS DEPARTMENT OF ENVIRONMENTAL PROTECTION BUREAU OF WASTE SITE CLEANUP 108 TRANSMITTAL FORM APPENDIX B REMEDIATION SYSTEM MONITORING AND INSPECTION LOGS APPENDIX C LABORATORY DATA FOR TREATMENT PLANT PROCESS VAPOR SAMPLES APPENDIX D LABORATORY DATA FOR INDOOR AIR SAMPLES APPENDIX E LABORATORY DATA FOR GROUNDWATER SAMPLES APPENDIX F LABORATORY DATA FOR REMEDIATION SYSTEM INFLUENT AND EFFLUENT SAMPLES GAPROJECTS\11621039\0SM_and Monitoring\O&M_Reports\DecO5-May06Report\Repor10506.doc 14 September 2007 111 Phase V Inspection and Monitoring Report I December 2005 - 31 May 1006 Buildings 30,51 and 70/7/ Remediation Systeurs ILtms7 LIST OF FIGURES Title Figure 1 Site Plan Figure 2 Building 70/71 In situ Chemical Oxidation Figure 3 Influent VOC Concentration, Cumulative Mass Removed, Building 30 Soil Vapor Extraction System Figure 4 Indoor Air Sampling Locations, Buildings 30, 70, and 71 Figure 5 TCE Concentrations in Groundwater - Building 70/71 Deep Overburden/Shallow Bedrock Figure 6 TCE Concentrations in Groundwater Building 70/71 Plume Perimeter Figure 7 TCE Concentrations in Groundwater Building 70/71 Mid -Plume Area Figure 8 WE Concentrations in Groundwater Building 70/71 Source Area Figure 9 Influent Concentrations of TCE and cis-1,2-DCE, Building 51 Remediation System Figure 10 TCE Concentrations in Groundwater, Downgradient from Building 70/71 Source Area GAPROJECTS\11621039\0&M_and_Monitoring\O&M_Reports\DecO5-May06Report\Report0506.doc 14 September 2007 iv n ,J n U n Lj n v Phase V Inspection and Monitoring Report l December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems LIST OF TABLES Title Table 1 Indoor Ambient Air Sampling Results Table 2 SVE Performance Data, Building 30 Remediation System Table 3 Historical Results of Vapor Sampling and Analysis, Building 30 Remediation System Table 4 Historical Groundwater Analytical Results for VOCs, Buildings 30 and 70/71 Remediation System Table 5 Vapor Flow Rates and PID Screening Data, Building 70/71 Remediation System Table 6 Results of Vapor Sampling and Analysis, Building 70/71 Remediation System Table 7 Results of Monthly Influent and Effluent Monitoring, Building 51 Remediation System G APROJ ECTS\ 11621039\0&M_and_Moni toring\O& M_Reports\DecO5-May06Report\Report0506.doc V 14 September 2007 n Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 n Buildings 30, 51 and 70/71 Remediation Systems F) L_s n V ) k k 1j n t U n L LIST OF ACRONYMS AS air sparging bgs below ground surface CDM Camp Dresser & McKee Inc. cfm cubic feet per minute cis-1,2-DCE cis- l ,2-dichloroethene COC Chain -of -Custody EPA United States Environmental Protection Agency ft feet 1t2 square feet gpm gallons per minute HVAC heating, ventilation, and air conditioning lbs pounds lbs/day pounds per day IM inspection and monitoring ISCO in situ chemical oxidation LSP Licensed Site Professional Lucent Lucent Technologies, Inc. MEK methyl ethyl ketone MCP Massachusetts Contingency Plan MassDEP Massachusetts Department of Environmental Protection mg/L milligrams per liter MVW Merrimack Valley Works NAPL non -aqueous phase liquid NPDES National Pollutant Discharge Elimination System OM&M operations, maintenance, and monitoring PID photoionization detector RAO Response Action Outcome Roux Roux Associates, Inc. . RTN Release Tracking Number sf square feet STL Severn Trent Laboratories SVE soil vapor extraction TCE trichloroethene 1,1,1 -TCA 1,1,1 -trichloroethane G APROJ ECTS\11621039\0&M_and_Moni toying\08M_Reports\Dec05-May06Report\Report0506.doc Vi 14 September 2007 Please V Inspection and Monitoring Report] l December 2005 - 31 May 2006'" Buildings 30, 51 and 70/71 Remediation Systems GAPROJECTS\11621039\0&M_and Monitoring\O&M_Reports\DecO5-May06Report\Report0506.doc 14 September 2007 Vii LIST OF ACRONYMS (continued) UCLs Upper Concentration Limit Pg/m3 micrograms per cubic meter pg/L micrograms per liter USTs underground storage tank VOCs volatile organic compounds WESTON@ Weston Solutions, Inc. GAPROJECTS\11621039\0&M_and Monitoring\O&M_Reports\DecO5-May06Report\Report0506.doc 14 September 2007 Vii SECTION 1 INTRODUCTION Phase V Inspection and Monitoring Report 1 December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems �. 1. INTRODUCTION Weston Solutions, Inc. (WESTON) has prepared this Phase V Inspection and Monitoring (IM) Report on behalf of Lucent Technologies, Inc. (Lucent) for the remediation activities associated with Release Tracking Number (RTN) 3-0174 at the Merrimack Valley Works (MVW) in North Andover, Massachusetts. The MVW is located at 1600 Osgood Street in North Andover and was formerly owned by Lucent. The current owner of the MVW is 1600 Osgood Street, LLC, a wholly-owned subsidiary of Ozzy Properties, Inc. The MVW is a confirmed Disposal Site regulated under the Massachusetts Contingency Plan (MCP), where investigation and remediation activities have been ongoing since 1986 under RTN 3-0174 for volatile organic compounds (VOCs) in soil and groundwater. Four other RTNs (3-21863, 3-23204, 3-24211, and 3-25333) are also active for areas of the MVW property not covered by RTN 3-0174. WESTON assumed responsibility . for remediation of the MVW property in September 2003. Prior to WESTON's involvement, Roux Associates, Inc. (Roux) and Camp Dresser & McKee Inc. (CDM) performed IM of the remediation activities, with Roux serving as the Licensed Site Professional (LSP) -of -Record for the site, and CDM as the remediation systems designer. Previous IM Reports for RTN 3-0174 include: ■ The initial IM Report for the Building 30 remediation system submitted by Roux and CDM in June 2003. This report summarized operations, maintenance, and monitoring (OM&M) activities performed from system startup on 23 June 2002 through 31 March 2003. ■ The initial IM Report for the Building 70/71 remediation system submitted by Roux and CDM in August 2003. This report summarized OM&M activities performed from system startup on 8 October 2002 through 31 March 2003. ■ Five IM Reports submitted by WESTON that summarize the OM&M activities performed from 1 April 2003 through 30 November 2005. This IM Report presents the OM&M activities associated with RTN 3-0174 that were performed from 1 December 2005 through 30 May 2006. This document was prepared in accordance with the requirements of 310 Code of Massachusetts Regulation 40.0890 of the MCP. A copy of GIPROJECTS\11621039\0&M and_Monitoring\O&M_Reports\DecO5-May06Report\Report0506.doc 14 September 2007 1-1 Phase V Inspection and Monitoring Report I December 1005 - 31 May 1006 Buildings 30, 51 and 70/71 Remediation Systems INTRODUCTION the Massachusetts Department of Environmental Protection (MassDEP) Bureau of Waste Site ' , Cleanup Forms 108, 108A, and 108B containing the name, license number, signature, and seal of ' the LSP -of -Record is included as Appendix A. 1.1 SITE DESCRIPTION The site is located at a 1,900,000 square -foot manufacturing facility on '168 acres of land in , North Andover, Massachusetts, just south of Interstate 495. The 168 -acre property includes approximately 115 acres that, until recently, were actively used for manufacturing, 32 acres that are landscaped, and 21 acres that are undeveloped woodlands, wetlands, and flood plain. There , are currently more than 55 buildings/structures located on the property. A Site Plan is provided on Figure 1. Hazardous chemicals, predominantly chlorinated solvents, such as trichloroethene (TCE) and tetrachloroethene, were historically stored and used in large quantities at the site. As a result of R L� historic releases at the facility, several plumes of dissolved VOCs are present in groundwater r !. beneath the site. Three separate remediation systems are currently in operation at the site to l J address VOCs in groundwater, soil, and indoor air. These systems are briefly described in Subsection 1.2. 1.2 REMEDIATION SYSTEMS DESCRIPTION There are three remediation systems at the site that are operated in order to treat contaminated soils and groundwater associated with RTN 3-0174. These remediation systems are: ■ The Building 30 remediation system whichconsists of soil vapor extraction (SVE) , and air sparging (AS) processes for treatment of contaminated soils and groundwater in the vicinity of the former machine shop sump in Building 30. In February 2004, ' ' WESTON commenced in situ chemical oxidation (ISCO) in the area of the Building 30 system in order to accelerate destruction of groundwater contaminants and shorten the time until attainment of the remediation objectives. ■ The Building 70/71 system which consists of SVE and groundwater extraction and treatment processes for treatment of the contaminated soil and groundwater in the Building 70/71 area. In situ chemical oxidation has been conducted in this area since December 2003 to accelerate remediation. Operation of the groundwater extraction G:\PROJECTS\11621039\0&M_and_Monilodng\O&M Reports\DecO5-May06Reporl\Report0506.doc 14 September 2007 1-2 i UPhase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems INTRODUCTION Li wells was discontinued in December 2003 following commencement of ISCO in n order to prevent removal of the ISCO reagent (sodium permanganate) from the v subsurface. Well MW -34D was converted to an extraction well in February 2006, and was pumped for approximately 3 weeks during this reporting period. The SVE n components of this system have remained in continuous operation with the exception �; of minor down-time for repairs and maintenance. (� The Building 51 system which consists of groundwater extraction and treatment processes for treatment of the contaminated groundwater downgradient from the Building 70/71 source area. u In addition to OM&M of the three remediation systems listed above, groundwater and indoor air 's--� quality monitoring were conducted throughout the MVW property during the reporting period in L' order to evaluate the overall progress of remediation. Also, as noted above, an ISCO program is ongoing in order to provide more aggressive remediation of the contaminated groundwater and U soil. Descriptions of the remediation systems are provided below. The OM&M activities F1 conducted during the reporting period are detailed in Section 2 of this report, and the results of L` the monitoring are provided in Section 3. A summary of the OM&M results and conclusions C'► concerning contaminant conditions are provided in Section 4, and recommendations for future `—' OM&M activities under RTN 3-0174 are provided in Section 5. n L' 1.2.1 Building 30 n The Building 30 remediation system commenced operation in July 2002. The objective of this system is to remediate the limited soil and groundwater contamination associated with historical n releases of chlorinated solvents via a floor drain in the building. The contamination appears to be limited to the shallow sand aquifer and the unsaturated zone. The impacted area is estimated to be approximately 6,000 square feet (ft), and is located beneath the southeast corner of n Building 30. Concentrations of chlorinated solvents in groundwater in the vicinity of the floor drain have been detected at a maximum of 140 milligrams per liter (mg/L). Prior to startup of the Building 30 remediation system, indoor air sampling indicated that contaminated soil vapors had migrated into the building through cracks and around foundation penetrations. Subsequent n sealing of the cracks and penetrations significantly reduced indoor air concentrations. Protection f 6 of indoor air quality has been further enhanced by operation of the Building 30 remediation system and the ISCO program. `--1 GAPROJECTS\11621039\0&M_and_Monitoring\O&M_Reports\DecO5-May06Report\Report0506.doc 14 September 2007 1-3 Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 u ' Buildings 30, 51 and 70/71 Remediation Systems .ems INTRODUCTION The Building 30 remediation system consists of a series of SVE and AS wells designed to remove residual vadose zone contamination and to volatilize VOCs dissolved in groundwater and capture the resulting vapors. The Building 30 remediation system consists of SVE at two wells (MW -43 and MW -44) and three subslab ventilation wells (VEW-1, VEW-2, and VEW-3), ` and AS capabilities at two locations (MW -43 and MW -44) for in situ stripping of VOCs from groundwater. The intent of the subslab ventilation wells is to apply a constant negative pressure beneath the building slab, and thereby capture any VOCs present and prevent them from migrating into the indoor air of Building 30. The SVE system has operated continuously with the exception of minor maintenance and ISCO injection shutdowns since startup in July 2002. The AS system was shut down in February 2003 and has not been reactivated, as is further discussed in Section 2. Extracted vapors are treated using activated carbon adsorption, and the treated air stream is discharged to the atmosphere. 1.2.2 Building 70/71 The Building 70/71 remediation system commenced operation in October 2002 and consists of a series of groundwater extraction wells, a limited SVE system, and associated groundwater and ` air treatment equipment. This system was installed to capture a large VOC plume in shallow groundwater that is related to former underground storage tanks (USTs) for solvents in this area. The USTs and the VOC-impacted soils were removed in 1986. Significant concentrations ` (as high as 2,200 mg/L) of VOCs have been detected in the uppermost groundwater zone in a roughly 40,000-ft2 area, extending from the outside loading dock area to beneath Buildings 70 and 71. Groundwater can be extracted from nine previously -existing groundwater monitoring wells , within the source area: MW -14, MW -24, MW -27, MW -30, MW -33, MW -34, MW -42, MW -45, and MW -48. Well MW -34D was installed in June 2005 and connected to the Building 70/71 remediation system in February 2006. Monitoring well MW -45 is operated as a dual phase SVE , and groundwater extraction well, because exceedances of groundwater and soil Upper Concentration Limits (UCLs) have been detected in the vicinity of this well. Monitoring wells are not typically designed for continuous withdrawal of groundwater, and as such, they generally GAPROJECTS\11621039\0&M_and_Monitoring\O&M_Reports\Dec05-May06Report\Report0506.doc 14 September 2007 1-4 F, Please V Inspection and Monitoring Report LJ 1 December 2005 - 31 May 2006 .' Buildings 30, 51 and 70/71 Remediation Systems ®, P INTRODUCTION IL' have inefficient screens and sandpacks, resulting in low yields and poor capture of contaminant n plumes. This is the case with the Building 70/71 system, where the yields of the individual U extraction wells are typically less than 0.5 gallons per minute (gpm). Because of the limited n yields of the current extraction wells, it is unlikely that complete capture of the plume has been Li achieved by this system when the wells are in operation. n, Li The Building 70/71 system treats the extracted groundwater using a phase separator and a n tray -type air stripper, and the treated effluent is discharged to the Merrimack River via the MVW storm drain system. During the reporting period this discharge was regulated under a site-specific National Pollutant Discharge Elimination System (NPDES) Permit. Regulation of the discharge LJ was changed to the NPDES Remediation General Permit for Massachusetts in August 2006. The r1 air stripper exhaust is treated using a regenerative carbon adsorption system prior to discharge to `-' the atmosphere. The limited SVE system consists of a single vacuum extraction point (MW -45) ri and two shallow, subslab trenches (Trench -1 and Trench -2). The trenches are operated to capture VOC vapors originating in the groundwater and soil beneath Buildings 70 and 71 before vapors enter the buildings. The extracted vapors are treated in the carbon adsorption system along with e the air stripper exhaust, and discharged to the atmosphere. The vapor -phase carbon is n periodically regenerated using an on-site regeneration system. Aqueous phase condensate from LJ the regeneration process is recycled through the groundwater treatment system. Dense n, non -aqueous phase condensate, if any is present, is accumulated in an on-site storage tank. Given the high concentrations of TCE in the core of the plume prior, and the minimal impact of Li the groundwater extraction wells on the contaminant plume, it was determined that additional remediation efforts were necessary to attain the cleanup objectives for the site. Therefore, u WESTON commenced the ISCO program in October 2003 in order to accelerate cleanup of the n Building 70/71 area. Li 1.2.3 Building 51 The groundwater extraction and treatment system at Building 51 was installed in 1990 to intercept groundwater impacted with VOCs (predominately TCE) migrating northward from the Building 70/71 area towards production wells PW -1, PW -2, and PW -3. These production wells C G:\PROJECTS\11621039\0&M_and_Monitodng\O&M_Reports\Dec05-May06Report\Report0506.doc 14 September 2007 1-5 Prase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems INTRODUCTION were used to provide up to 750 gpm of process water for use during the former Lucent manufacturing operations at the MVW. Use of these wells was discontinued in approximately ` 2000, and PW -2 and PW -3 have subsequently been abandoned. Production wells PW -2 and PW -3 were screened in coarse sand and gravel deposits located just above bedrock, and ` reportedly produced as much as 450 gpm. These deposits are believed to be hydraulically connected to a deep overburden channel that passes through the site beneath Buildings 30 ' and 70. The Building 51 extraction system uses two groundwater extraction wells (EW -2 and EW -3) that are screened in the buried channel deposits to intercept the VOC plume upgradient of PW -2 and PW -3. Production well PW -1 is located in the vicinity of PW -2 and PW -3 but is reportedly screened in a shallow sand deposit that is not hydraulically connected to the buried channel. Production well PW -1 is no longer in operation, but has not been abandoned. Groundwater is pumped from EW -2 and EW -3 at a combined rate of between 60 and 70 gpm ` and is treated via a packed -column air stripper located in Building 51. The treated effluent is discharged to the MVW storm drain system, which discharges to the Merrimack River under an existing NPDES Permit. The air stripper exhaust is treated using vapor -phase activated carbon adsorption prior to discharge to the atmosphere. G:\PROJECTS\11621039\0&M_and_Monitodng\O&M_Reports\Dec05-May06Report\Report0506.doc 14 September 2007 r 1-6 SECTION 2 INSPECTION, REMEDIATION, AND MONITORING L� Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems 2. INSPECTION, REMEDIATION, AND MONITORING The inspection, remediation, and monitoring activities performed for the Building 30 and 70/71 systems during the reporting period of 1 December 2005 through 31 May 2006 are discussed in the following subsections. 2.1 BUILDING 30 REMEDIATION SYSTEM Periodic IM of the Building 30 SVE/AS system, including the collection of vapor samples for field screening, was conducted to assess the performance of the remediation system. In addition, indoor air and groundwater samples were collected from the vicinity of the Building 30 remediation system in order evaluate progress towards attainment of the remedial objectives. The monitoring program is discussed below. 2.1.1 Type and Frequency of Building 30 Inspection and Monitoring System operating parameters were monitored, and adjustments to the operating conditions were made as necessary to maintain proper operation of the Building 30 remediation system. Periodic monitoring of VOC concentrations in the vapor stream at the influent, midpoint, and effluent of the carbon adsorption units were conducted to evaluate contaminant removal efficiency. Periodic monitoring of the VOC concentrations in each of the five vapor extraction wells (VEW-1, VEW-2, VEW-3, MW -43, and MW -44) was also conducted using a photoionization detector (PID). The results of these measurements are summarized and discussed in Section 3. Copies of the monitoring logs are provided in Appendix B. Indoor air samples were collected at established locations in Building 30 on two dates during this monitoring period: 1 February and 28 April 2006. Groundwater samples were collected from monitor wells in and adjacent to the Building 30 remediation system on 15 February and 9 May 2006. The results of the indoor air and groundwater monitoring events are presented and discussed in Section 3. G APROJECTS\11621039\O&M AND MONITORING\O&M REPORTS\DEC05•MAY06REPORT\REPORT0506.DOC 14 SEPTEMBER 2007 r`1 - - - 2-1 Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems INSPECTION, REMEDIATION, AND MONITORING 2.1.2 Description of Significant Modifications to the Building 30 Inspection and/or Monitoring Program This document is the seventh IM Report submitted for the Building 30 remediation system. Inspection and monitoring was completed for the period of 1 December 2005 through 31. May 2006. Modifications to the IM Program during the reporting period are discussed in Subsection 2.1.2.1. 2.1.2.1 Conversion of Building 30 Soil Vapor Extraction System to Pulsed Operation 0 The indoor air quality data for the Building 30 area indicate very low concentrations of contaminants related to soil and groundwater contamination since the Building 30 remediation system commenced operation in July 2002, and the ISCO program commenced in January 2004. To evaluate the extent to which remediation of the Building 30 area has been completed, the remediation system was turned off for 2 weeks prior to the February 2006 indoor air quality-- monitoring event. The results from this monitoring event, as shown in Table 1 for sample locations 1X-95, F4, and G4, showed no material change in the concentrations of indoor air contaminants. It was therefore concluded that it was safe to convert the treatment system to pulsed operation, with cycles of 2 weeks on followed by 2 weeks off. This change went into effect on 20 February 2006, following receipt and evaluation of results from the 1 February 2006 indoor air quality monitoring event. The 28 April 2006 indoor air quality monitoring event was also conducted at the end of a 2 -week off cycle. The results from this event were similar to the results from the February 2006 indoor air quality monitoring event, and verified that the change to pulsed operations had no negative impact on indoor air quality in Building 30. The pulsed operation program was therefore continued. Indoor air quality will be tested after longer downtimes during the next reporting period to determine if the time that the system is off can be extended. G:\PROJECTS\11821039\0&M_AND MONITORING\O&M_REPORTS\DECOS-MAV05REPORT\REPORTO506.DOC 14 SEPTEMBER 2007 2-2 A-1 Phase V ]nspection and Monitoring Report i December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems (-1 INSPECTION, REMEDIATION, AND MONITORING 2.1.3 Conditions Affecting Performance of Building 30 Remediation System n and Corrective Actions i U As reported above in Subsection 2.1.2.1, the SVE portion of the system was converted to pulsed 'tea operation during the reporting period, based on the results of indoor air quality monitoring. As reported in previous IM Reports for this RTN, The AS portion of the remediation system has not n been operated since system 12 February 2003, because AS causes mounding of the water table in v the SVE wells, which reduces vapor extraction rates and results in excessive groundwater n U extraction at SVE wells MW -43 and MW -44. Future use of the AS system will be evaluated based upon the progress of the remediation activities and the groundwater VOC concentrations n in wells MW -43 and MW -44. P' 2.2 BUILDING 70/71 REMEDIATION SYSTEM Inspection and monitoring of the Building 70/71 remediation system was conducted to evaluate L' theerformance of the system, estimate contaminant mass removal from soil and p y groundwater, and confirm the effectiveness of the groundwater and vapor phase treatment with regard to the remediation system goals. As noted in Subsection 1.2, operation of the groundwater extraction wells was discontinued in December 2003 following commencement of the ISCO program. Well v MW -34D, which was installed in June 2006 to evaluate deep overburden and shallow bedrock n contamination, was converted to an extraction well in February 2006. MW -34D was pumped for iU approximately 3 weeks during February and March 2006 in order to address deep overburden n and shallow bedrock contamination. Indoor air and groundwater samples were collected during this reporting period to evaluate the progress of the remediation activities. The results of these monitoring events are discussed in Section 3. u M 2.2.1 Type and Frequency of Building 70/71 Inspection and Monitoring n System operating parameters were monitored weekly, and adjustments to the operating �► conditions were made as necessary to maintain effective performance of the Building 70/71 n remediation system. Copies of the operations logs are provided in Appendix B. Remediation s system monitoring was conducted to evaluate the VOC mass removal rate from the vadose and n LJ n GAPROJECTS\11621039\0&M_AND_MONITORING\08M_REPORTS\DEC05-MAV06REPORT\REPORT0506.DOC 14 SEPTEMBER 2007 2-3 Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 } Buildings 30, 51 and 70/71 Remediation Systems INSPECTION, REMEDIATION, AND MONITORING saturated zones, and to confirm attainment of discharge limits. Calculation of the VOC mass ' removal rate and cumulative mass removed provides a means of assessing the progress of remediation by comparing the total mass removed over similar time periods. In addition, ' monitoring of the groundwater remediation equipment and the carbon adsorption system is ' necessary to ensure attainment of the applicable discharge criteria. When the groundwater treatment system is operating, influent and effluent water samples are .._ collected monthly to monitor the performance of the treatment process. Samples are submitted for VOC analysis as required by the NPDES Permit (Permit No. MA0001261) issued for this t system (Outfall 002C). In addition to the sampling and analysis for VOCs, grab samples of the effluent from the Building 70/71 system are collected and measured in the field for pH four times per month, and the remediation system effluent flow rate is measured at least two times per month. As noted above, the groundwater extraction wells were turned off in December 2003 at the start of the ISCO program, and thus, the only water generated by the treatment system since that date has been from the following sources: 1 t _l 1 ■ Pumping of Well MW -34D for approximately 3 weeks in February and March 2006. ■ Purge water resulting from sampling of the extraction and monitor wells at the site. ■ Liquids extracted by the SVE system. ■ Condensate from regeneration of the carbon system. During this reporting period, sufficient water for operation of the groundwater treatment system I was generated during January through May 2006, and therefore, aqueous influent and effluent L -- samples were only collected during those months. Indoor air samples were collected at established locations within Buildings 70 and 71 on two dates during this monitoring period: 1 February and 28 April 2006. The results of the indoor air monitoring are summarized and discussed in Section 3. Groundwater samples for the spring 2006 monitoring event were collected on 8 and 9 May 2006. For that sampling event, groundwater samples were collected from 21 monitor and extraction G:\PROJECTS\11621039\08M AND MONITORING\08M REPORTS\DEC05-MAY05REPORnREPORTO500.DOC 16 SEPTEMBER 2007 2-4 LJ n L n n LJ I LJ n LJ n LJ Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems INSPECTION, REMEDIATION, AND MONITORING wells in, and downgradient from, the Building 70/71 source area. The results of these monitoring events are presented and discussed in Section 3. 2.2.2 Description of Significant Modifications to the Building 70/71 Inspection and/or Monitoring Program This document represents the seventh IM Report submitted for the Building 70/71 remediation system and covers the period of 1 December 2005 through 31 May 2006. The following modifications to the monitoring program were implemented during the reporting period: ■ Quarterly groundwater samples collected from extraction and monitor wells were not analyzed for VOCs when permanganate was present. The presence of permanganate in a water sample is indicated by a dark pink or purple color, which indicates a permanganate concentration of greater than 0.1%. Testing has shown that when greater than 0.1 % permanganate is present, the concentrations of chlorinated ethenes (the contaminants of concern at the site) are extremely low. ■ Well MW -34D, which was installed in June 2005, was converted to an extraction well during February 2006, and was pumped for approximately 3 weeks during February and March 2006. The objective of extracting groundwater from MW -34D was to extract contamination in the vicinity of the well. The monitoring results for MW -34D are discussed in Section 3. 2.2.3 Conditions Affecting Performance of Building 70/71 Remediation System and Corrective Actions As noted above, MW -34D was operated as an extraction well for approximately 3 weeks in February and March 2006. During the pumping of MW -34D, the Building 70/71 groundwater treatment system was operated continuously. During the remainder of the reporting period, the extraction wells for the Building 70/71 treatment system were operated in order to prevent removal of the ISCO reagent (sodium permanganate) from the subsurface, and the groundwater treatment system was operated intermittently for treatment of SVE and carbon regeneration system condensate, and groundwater sampling purge water. G:\PROJECTS\11521039\0&M_AND_MONITORING\O&M_REPORTS\DECOS-MAY06REPORT\REPORTO506.DOC 14 SEPTEMBER 2007 2-5 Pb ase V Inspection and Monitoring Report l December 1005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems INSPECTION, REMEDIATION, AND MONITORING 2.3 BUILDING 51 REMEDIATION SYSTEM Inspection and monitoring of the Building 51 remediation system was conducted to evaluate the performance of the system, estimate contaminant mass removal from groundwater, and confirm attainment of NPDES discharge limits. The results of these monitoring events are discussed in , Section 3. 2.3.1 Type and Frequency of Building 51 Inspection and Monitoring System operating parameters were monitored weekly, and adjustments to the operating conditions were made as necessary to maintain proper operation of the Building 51 remediation system. Copies of the operations logs are provided in Appendix B. Influent and effluent water samples are collected monthly to monitor the performance of the treatment process. Samples are submitted for VOC analysis as required by the NPDES Permit (Permit No. MA0001261) issued for this system (Outfall 001). The vapor phase carbon adsorption system is monitored approximately weekly using a PID, and the carbon is changed out as necessary. 2.4 SUPPLEMENTAL PHASE IV REMEDIAL ACTIVITIES The groundwater extraction and treatment system at Building 70/71 was designed to address groundwater with TCE at concentrations exceeding the UCLs. This system commenced operation in October 2002. An evaluation of the performance. of this system concluded that it would require several decades to reach the design objective (reduce dissolved concentrations of VOCs to below the UCLs). Thus, a more aggressive approach is being implemented. To accelerate remediation of the site, WESTON has employed ISCO to aggressively attack the VOC source areas at Buildings 30 and 70/71. In situ chemical oxidation is capable of reducing r the existing concentrations of VOCs to the cleanup objectives much more rapidly than the existing pump and treat system. A treatability test was conducted in September 2003 to evaluate the effectiveness of ISCO for destruction of groundwater contaminants at the Disposal Site. The results of the treatability test showed very effective destruction of the site contaminants, with the TCE concentration in test GAPROJECTS\11621039\08M_AND MONITORING\08M_REPORTS\DEC05-MAYOOREPORT\REPORTO506.DOC 14 SEPTEMBER 2007 2-6 N rr Q Phase V Inspection and Monitoring Report 1 December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems INSPECTION, REMEDIATION, AND MONITORING samples reduced from 440 mg/L to 1.7 mg/L in 7 days. A Supplemental Phase IV Remedy Implementation Plan, that detailed the procedures and results of the treatability test, and the design of the ISCO activities to be implemented, was submitted to MassDEP on 10 October 2003. The objective of the ISCO program is to significantly reduce remedial timeframes in comparison to operating the groundwater and SVE and treatment systems alone. This more aggressive approach involved injection of sodium permanganate, an oxidizing reagent that destroys chlorinated alkenes, into the contaminant source zone and downgradient plume where concentrations of WE exceed 10 mg/L. 2.4.1 Building 70/71 In Situ Chemical Oxidation A total of 138 injection wells were installed for the ISCO program in the Building 70/71 area as shown in Figure 2. The area designated for treatment included the full extent of the plume that exceeded 10 mg/L of TCE. Approximately 300 gallons of 20% sodium permanganate were injected into each of the injection wells during December 2003 and January 2004. Following the initial treatment effort, concentrations of WE in many source area monitor wells continued to exceed the cleanup objective during quarterly monitoring events in April and July 2004., Two additional rounds of sodium permanganate injections were conducted May and October 2004 in selected injection points within the source area. During each supplemental ISCO injection event, 100 to 300 gallons of 20% sodium permanganate were injected into the source area injection points. Following the completion of each permanganate injection event, selected injection and monitor wells were sampled periodically for the presence of permanganate. Grab samples were collected using a bailer and inspected visually for evidence of permanganate (purple color). All purge water with visible amounts of permanganate was returned to the injection well. Purge water without visible concentrations of permanganate was processed through the Building 70/71 treatment system. G:\PROJECTS\11821039\0&M_AND_MONITORING\08M_REPORTS\DEC05-MAV06REPORTREPORT0506.DOC 14 SEPTEMBER 2007 2-7 LJ Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30,51 and 70/71 Remediation Systems INSPECTION, REMEDIATION, AND MONITORING The ISCO program in the Building 70/71 area was expanded to include the deep overburden and ` shallow bedrock zone during the second and third quarters of 2005. The reason for this ' expansion was the elevated WE concentrations that had been observed in MW -15D since ` March 2004. The initial ISCO program provided treatment of the shallow overburden, to a depth of approximately 35 ft below ground surface (bgs). The elevated WE concentrations in MW -151), which is screened at the overburden/bedrock interface approximately 70 ft bgs, indicated that the deep overburden and shallow bedrock also required treatment. Therefore, 5 monitor wells and 20 injection wells were installed in the deep overburden during June and September 2005. In October 2005, sodium permanganate, the ISCO reagent, was injected into each of the deep overburden injection wells. Additional detail concerning the ISCO program in the deep overburden and shallow bedrock of the Building 70/71 area is provided in Section 3. Performance monitoring results for the Building 70/71 ISCO program are also presented in Section 3 2.4.2 Building 30 In Situ Chemical Oxidation Remediation Permanganate injection was also performed in the Building 30 area. The objective of this ISCO effort was to destroy groundwater contaminants, and thereby reduce the potential for these compounds to volatilize into the soil gas and migrate into the Building 30 indoor air. The AS wells in MW -43 and MW -44 were used as the delivery points for the permanganate. A total of 300 gallons of 20% permanganate solution were injected to each of the two sparge wells during ` r January 2004. Performance monitoring results for the Building 70/71 ISCO program are presented in Section 3. ` G?PROJECTS\11821039\08M_AND_MONITORING\08M_REPORTS\DECOSMAVOBREPORTREPORT0506.DOC 14 SEPTEMBER 2007 • J 2-8 , SECTION 3 RESULTS OF INSPECTION AND MONITORING PROGRAM Irl Phase V Inspection and Monitoring Report U I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems n 3. RESULTS OF INSPECTION AND MONITORING PROGRAM i 41 3.1 RESULTS OF BUILDING 30 INSPECTION AND MONITORING PROGRAM Periodic inspection and monitoring events were conducted at the site during this reporting period to monitor the progress of remediation and optimize the performance of the remediation systems and ISCO program. The results of the inspection and monitoring program are discussed in Subsections 3. 1.1 through 3.1.3. 3.1.1 Building 30 Remediation System Monitoring and Results n Operating parameters recorded on a bimonthly basis included pressures (positive and negative) in the SVE piping and at the SVE well heads, soil vapor flow rates, heat exchanger influent and F) effluent temperatures, carbon system pressure drop data, and liquid level observed in the `-' air/water separator. Negative pressures at the SVE wells ranged from 1.0 to 11.5 inches of 71 mercury. Vapor flows from MW -43 and MW -44 averaged approximately 18 and 10 cubic feet per minute (cfin), respectively. Vapor flows from the sub -slab shallow wells (VEW-1, VEW-2, and VEW-3) averaged approximately 52 cfin per well. The average total flow rate for the SVE Li system for this reporting period was 183 cfin. n A PID was used during the reporting period to monitor the VOC concentrations in the vapor stream at the inlet to the carbon system, between the two carbon vessels, and the carbon system effluent. The results of these measurements are summarized in Table 2. In addition to the PID monitoring, samples for analysis by EPA Method TO -15 were collected at the system influent �_J and effluent using evacuated Summa canisters on 4 May 2006. The objective of the Summa n canister sampling was to provide more detailed characterization of the vapor stream constituents, and to verify the VOC removal rate that is estimated using PID measurements. A TO -15 sample n was also collected from VEW-1 on 10 February 2006 in order to evaluate the continuing need for i that sub -slab ventilation well. n The results of the TO -15 analyses are presented in Table 3, and copies of the laboratory data reports for these samples are included as Appendix C. These PID and TO -15 monitoring results V-1 G:\PROJECTS\11621039\08M AND.MONITORING\08M REPORTS\DEC05-MAV06REPORT\REPORT0506.DOC 14 SEPTEMBER 2007 n 3-1 Phase V Inspection and Monitoring Report 1 December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM indicate a continued downward trend in contaminant concentrations in the SVE system influent. The TO -15 monitoring results from VEW-1 indicate very low contaminant concentrations in the vicinity of that well. As discussed below in Subsection 3.1.4, there was also an increase in groundwater contaminant concentrations in MW -44 during the reporting period. These increases may be related to dissipation of the permanganate that was injected into MW -44 in January 2004. To address this rebound in contaminant concentrations, a second permanganate injection event was conducted in the MW -44 area during June 2006. This additional ISCO event resulted in a eJ significant reduction in contaminant concentrations in the groundwater in MW -44 as well as in the vapors extracted from MW -44 during the next reporting period. 3.1.2 Building 30 Remediation System Contaminant Removal Rate. The estimated VOC removal rate for the December 2005 through May 2006 reporting period was . calculated using the TO -15 and PID monitoring. As shown in Table 1, the VOC removal rate ranged between 4.1 and 0.1 pounds per day (lbs/day) over the reporting period. The significant fluctuation in these removal rates is the result of pulsed operation that commenced in January 2006. The removal rates were higher immediately after the system was restarted following the 2 -week periods when the system is off. The removal rate drops very quickly to less than 0.5 lbs/day within 48 hours after the system is restarted. As shown in Figure 3, the ' contaminant removal rate has decreased significantly since startup of the Building 30 remediation system in July 2002. This type of decline is typical of SVE systems, as the total mass of contaminant in the vadose zone is reduced. The recent stabilization of the contaminant removal rate at approximately 0.4 lbs/day indicates that contaminant removal is currently limited by volatilization of VOCs from groundwater and by diffusion of VOCs from the lower ` permeability zones in the contaminated soil matrix. Operation in pulsed mode has reduced energy consumption during the later phases the Building 30 system operation period as the remediation objectives are approached. 3.1.3 Building 30 Indoor Air Monitoring and Results Indoor air samples were collected from the area in and adjacent to the former welding room in Building 30 on two dates during this reporting period: 1 February and 29 April 2006. The indoor GIPROJECTS\11621039\0&M_AND_MONITORING\O&M_REPORTS\DEC05-MAV08REPORT\REPORT0506.DOC 14 SEPTEMBER 2007 3-2 n E LJ r m n u` r) CJ n L ri n U Phase V Inspection and Monitoring Report I December 2005 -.31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems [� RESULTS OF INSPECTION AND MONITORING PROGRAM air sampling locations are shown on Figure 4. Indoor air samples were collected using evacuated Summa canisters over an 8 -hour period, in accordance with MassDEP indoor air sampling guidance. The Building 30 remediation system. was in operation during the two sampling events. The heating, ventilation, and air conditioning (HVAC) system for Building 30 was also in normal operation mode during the indoor air sampling events. The Summa canisters were placed in the breathing space at locations that coincide with the following column coordinates in Building 30: F4, and G4. The indoor air samples were couriered to Severn Trent Laboratories (STL) under standard Chain -of -Custody (COC) procedures and analyzed for VOCs using EPA Method TO -15. As reported in the previous IM Reports for this RTN, locations 1X-105 and 1X-95 were removed from the indoor air monitoring program in October 2004, because the VOC concentrations at these locations have historically been very low, and these locations are not in an area of suspected contamination. However, one sample was collected at location 1X-95 during this reporting period to evaluate whether the pulse operations of the Building 30 system caused impacts to the 1X-95 area. In addition, location F2 was removed from the program in October 2004, because of its close proximity to location F4. Sample location D-20, which had very low contaminant concentrations during 2004 and 2005, was not sampled during the reporting period. Location D-20 will be sampled once every 2 years until filing of the Response Action Outcome (RAO) for the site. The indoor air sample results for this reporting period, as well as historical sampling results, are summarized in Table 3. Copies of the laboratory analytical data packages for indoor air samples are provided in Appendix D. The significant decrease in concentrations of VOCs in the indoor air samples that occurred following startup of the Building 30 remediation system in July 2002 was maintained for the two indoor air sampling events during this reporting period. As shown in Table 3, the concentrations of all VOCs that were detected in indoor air during the reporting period were very low and, with the exception of isopropyl alcohol, just above the sample reporting limits. Isopropyl alcohol was detected at concentrations of ranging from 34 to 210 micrograms per cubic meter (µg/m3) at the three Building 30 indoor air monitoring locations during the reporting period. However, GAPROJECTS\11621039\0&M_AND MONITORING\O&M_REPORTS\DECOS-MAY06REPORTIREPORT0506.DOC 14 SEPTEMBER 2007 3-3 Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM isopropyl alcohol has not been detected in soil or groundwater at the site, and it's presence in indoor air is likely the result of previous and ongoing manufacturing, packaging, etc. operations in Building 30. M1 -N Of the VOCs detected in indoor air during the. reporting period, TCE, acetone, r cis-l,2-dichloroethene, (cis-1,2-DCE), dichlorodifluoromethane (Freon 12), and toluene have been detected in the influent vapor to the Building 30 remediation system or in the groundwater in the vicinity of the Building 30 remediation system. The remaining compounds (chloromethane, cyclohexane, heptane, isopropyl alcohol, and trichlorofluoromethane (Freon 11) detected in indoor air are likely in the building environment as a result of the historical or ongoing manufacturing, packaging, etc. activities in the Building 30 area, and are not believed to be soil or groundwater contaminants that have entered the building via soil gas. &.__J As noted above, indoor air quality in Building 30 has improved significantly since startup of the Building 30 remediation system in July 2002. During the 4.5 years of operation, the Building 30 remediation system has removed greater than 4,400 pounds (lbs) of VOCs from the subsurface. In addition to removal of contaminants via SVE, injection of permanganate into the MW -43 and ; , MW -44 areas in January 2004 likely destroyed some additional contamination, as indicated by a , drop in VOC concentrations in ATT -1, MW -43, and MW -44. (There has been some rebound in MW -44 that was addressed by an additional ISCO injection event during the second quarter of 2006.) r. To evaluate overall remedial progress in the vicinity of the Building 30 remediation system, the two indoor air sampling events were conducted during this reporting period while the Building 30 remediation system was off, and had been off for 2 weeks prior to the sampling event. The results from this testing, as reported in Table 3, show no material impacts to indoor air quality from the remediation system downtime. Therefore, pulsed operation will be continued r during the subsequent reporting periods. The off -time will be extended from 2 to 4 weeks to further evaluate the impact of the remaining soil and groundwater contamination in the Building 30 area on indoor air quality. r' 11r GAPROJECTS\11821039\0&M_AND_MONITORING\08M_REPORTS\DEC05-MAY06REPORT\REPORTO500.DOC - 14 SEPTEMBER 2007 r 3-4 Phase V Inspection and Monitoring Report L-1 1 December 2005 - 31 May 2006 Buildings 30, 51 and 70171 Remediation Systems n RESULTS OF INSPECTION AND MONITORING PROGRAM I 3.1.4 Building 30 Groundwater Monitoring and Results r ,_;, The semi-annual groundwater monitoring event was conducted on .9 May 2006. Groundwater samples were collected from monitoring wells MW -43 and MW -44 in accordance with EPA L Region 1 low -flow sampling guidelines. Using a peristaltic pump with dedicated Teflon -lined tubing, a sample was collected directly into a pre -preserved sample container, couriered to STL under COC procedures and analyzed for VOCs by EPA Method 8260B. Purge water was I screened with a PID and treated at the Building 51 treatment system. Table 4 summarizes the groundwater analytical data for the current and previous reporting periods. Table 4 also includes F, the MCP Method 1 GW -2 standards for comparison to the groundwater concentrations. The L iGW-2 standards were selected for comparison because the Building 30 monitoring wells are located within 30 feet (ft) of an existing building. Copies of laboratory data packages for the LJ groundwater samples are included as Appendix E. The groundwater monitoring results indicate continued downward trends in contaminant concentrations in MW -43, which had a TCE concentration of 180 micrograms per liter (µg/L) in .� comparison to 16,000 µg/L TCE prior to startup of the remediation system and ISCO program in r, 2002 and 2003, respectively. In.MW-44, the TCE concentration did increase from 20,000 µg/L Li in November 2005 to 71,000 µg/L in May 2006. Rebound of the TCE concentration occurred n approximately 14 months after sodium permanganate had dissipated in MW -44, and indicates that additional permanganate treatment of the MW -44 area was needed. Therefore, a second permanganate injection was conducted in the MW -44 area during June 2006. n 3.2 RESULTS OF BUILDING 70/71 SAMPLING AND MONITORING PROGRAM �a (� Inspection and monitoring of the Building 70/71 remediation system was conducted to evaluate system performance, estimate contaminant mass removal rates, and verify compliance with effluent discharge limits. The results of the monitoring program for the reporting period, as well rr as historical monitoring results, are presented in the following subsections. G:\PR0JECTS\11021039\O&M_AND_MONITORING\O&M REPORTS\DEC05-MAVOBREPORT\REPORT0508.DOC 14 SEPTEMBER 2007 4r j 3-5 Please V Inspection and Monitoring Report �iiiiS:J—�tJv I December 2005 - 31 May 2006 ` Buildings 30, 51 and 70/71 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM 3.2.1 Building 70/71 Remediation System Monitoring and Results ` During this reporting period, the Building 70/71 remediation system was operated in SVE mode, with vapors extracted from the two sub -slab ventilation trenches and from MW -45 for the entire reporting period. The vapors extracted via SVE at Building 70/71 are processed through the , activated carbon adsorption system prior to discharge to the atmosphere. In addition to the SVE operations, MW -34D was converted to an extraction well, and groundwater was extracted and treated from MW -34D from 14 February through 6 March 2006. The objective of pumping , MW -34D was to address the elevated TCE concentration in MW -34D. After 3 weeks of pumping, the groundwater concentration in MW -34D had dropped from 110,000 µg/L prior to the pumping, to 1,700 µg/L on 6 March 2006. The pumping was stopped on 6 March, and ` MW -34D was not pumped again during the reporting period. A sample collected from MW -34D on 8 May 2006 showed an increase in the TCE concentration to 11,000 µg/L. ` Additional monitoring and pumping of MW -34D was conducted during the next reporting period. z With the exception of operation of MW -34D during February and March 2006, the groundwater . extraction wells at Building 70/71 have not been operated since commencement of the ISCO program in December 2003 in order to prevent removal of the ISCO reagent (sodium permanganate) from the subsurface. A small volume of water extracted by the SVE system and condensate from the carbon regeneration system is generated during operation of the SVE system. During this reporting period, water was processed through the treatment system during February through May 2006. The treatment system processed an average of 1 gpm while 1 MW -34D was in operation from 16 February until 6 March 2006. During April and May 2006, + when no wells were pumping, approximately 300 gallons of SVE condensate accumulated in the influent tank each month and were processed through the treatment system once per month. 3.2.2 Building 70/71 Soil Vapor Extraction System Monitoring and Results ._ Vapor flow rates and PID measurements were recorded periodically during this reporting period for the SVE system. A summary of the PID measurements is provided in Table 5. In addition to the PID measurements, process vapor samples were collected from the influent to and effluent GAPROJECTS111821039\08M AND_MONITORING\08M REPORTS\DECOS-MAV06REPORT\REPORTOSM.DOC 14 SEPTEMBER 2007 3-6 F, r 14 Phase V Inspection and Monitoring Report I December 1005 - 31 May 1006 m Buildings 30,51 and 70/71 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM from the vapor phase carbon system on 4 May 2006 using evacuated Summa canisters and were analyzed by EPA Method TO -15. A summary of the results, showing the concentrations of all contaminants detected, is provided in Table 6 along with the TO -15 data from the previous reporting periods. Table 6 also shows the vapor flow rates and pounds of contaminants extracted from the subsurface via SVE during the reporting period. Copies of laboratory data reports for the treatment plant process vapor samples are included as Appendix C. 3.2.3 Building 70/71 Remediation System Contaminant Mass Removal When in full operation, the Building 70/71 remediation system removes contaminants from the subsurface in both liquid (groundwater) and vapor (soil vapor) phases. As shown in Table 6, an estimated 122 lbs of VOCs were removed from the subsurface by the SVE system during the reporting period. An additional 5.4 lbs of contaminant are estimated to have been removed from the subsurface during pumping of MW -34D during February and March 2006. As noted above, other than operation of MW -34D during February and March 2006, the extraction wells have been turned off since the commencement of the ISCO activities in December 2003. 3.2.4 Building 70/71 Groundwater Monitoring and Results, Performance of In Situ Chemical Oxidation Program An ISCO program has been conducted in the Building 70/71 area since December 2003 in order to accelerate cleanup of the site. The ISCO program has included the following major activities: ■ Installation of 140 injection wells in October and November 2003. The locations of these wells are shown on Figure 2. ■ Injection of approximately 320,000 lbs of 20% sodium permanganate into the injection wells during December 2003 and January 2004. ■ Installation of 5 deep overburden/shallow bedrock monitor wells in June 2005. ■ Installation of 20 deep overburden injection wells in September 2005. ■ Installation of 6 deep overburden monitor/injection wells in May 2006. G APROJECTS\11621039\0&M_AND_MONITORING\08M_REPORTS\DEC05-MAY06REPORrREPORT0506.DOC 14 SEPTEMBER 2007 3-7 Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 . . Buildings 30,51 and 70/71 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM ■ Injection, during May and October 2004, and October 2005, of a combined ' 123,600 lbs of 20% sodium permanganate in areas of the shallow overburden where contaminants rebounded following the initial injections. l_J ■ Injection, during October 2005, of approximately 59,700 lbs of 20% sodium permanganate in the deep overburden to address contamination in that area. The results of groundwater monitoring, including performance monitoring of the ISCO program in the Building 70/71 area, are detailed in Subsections 3.2.4.1 through 3.2.4.3. ` J 3.2.4.1 Sampling and Analysis of Groundwater in the Building 70/71 Area k During the reporting period, the semi-annual groundwater quality monitoring event was conducted on 8 and 9 May 2006. The following wells in, and downgradient from, the Building 70/71 source area were sampled during this monitoring event: Well Location Well ID Building 70/71 Source Area MW -151), MW -22, MW -34, MW -34D Downgradient Plume Near and Beneath Buildings 70, 71,.and 30 MW -20, MW -27, MW -29, MW -40, MW -41D, MW -52S, MW -55 Downgradient of Building 70 MW -3S, MW -4S, MW -61), MW -9S The following wells were not sampled because the groundwater in them was colored purple, thereby indicating sufficient permanganate to oxidize chlorinated ethenes: MW -14, MW -19, MW -21, MW -23, MW -24, MW -25, MW -26, MW -30, MW -33, MW -35, MW -42, MW -42D, MW -45, and MW -45D. Monitor wells were sampled in accordance with EPA Region 1 low -flow guidance. Prior to ` sampling activities, water levels were measured in the well using an electronic water level indicator. All wells were sampled using either a peristaltic or submersible pump with dedicated Teflon -lined tubing directly into pre -preserved sample containers. All water purged during sampling was treated at either the Building 70/71 or the Building 51 treatment plant. , The samples were couriered to STL under COC procedures and analyzed for VOCs by EPA Method 8260B. GAPROJECTS\11621039\08M ANO MONITORING\08M REPORTS\DEC05-MAY06REPORT\REPORT0506.DOC 14 SEPTEMBER 2007 3-8 !�t Phase V Inspection and Monitoring Report 1 December 2005 - 31 May 1006 Buildings 30, 51 and 70/71 Remediation Systems In RESULTS OF INSPECTION AND MONITORING PROGRAM u The groundwater analytical results for the Building 70/71 area are summarized in Table 4, which Jrincludes data from this reporting period as well as data from previous reporting periods. `-` Comparisons of the results to the UCLs and appropriate Method 1 groundwater standards for the site are also included in Table 4. Groundwater analytical results for wells within 30 ft of an existing building are compared to GW -2 standards, and groundwater analytical results for all R+ other wells within the Disposal Site are compared to GW -3 standards. Copies of laboratory data packages for the groundwater samples are provided as Appendix E. L) Chlorinated VOCs were detected in many of the wells sampled in the vicinity of Buildings 70 F1 and 71, with TCE, cis-1,2-DCE, 1,1,1 -trichloroethane, 1,1-dichloroethane, 1,1-dichloroethene, Li and vinyl chloride the most predominant contaminants detected. 3.2.4.2 Groundwater Monitoring Results in Building 70/71 Area - Deep Overburden/Shallow Bedrock The locations of the deep overburden and shallow bedrock monitor and injection wells in the n Building 70/71 source area are shown on Figure 2. The groundwater analytical data are `-1 summarized in Table 4. Figure 5 is a graph of the TCE concentration in several key deep I overburden/shallow bedrock monitor wells in the Building 70/71 source area. As shown on LLJ Figure 5, there was a significant drop the TCE concentration in MW -15D following injection of oxidant into the deep overburden in October 2005. Prior to the oxidant injection, the concentration of TCE in MW -15D was 110,000 µg/L. Three weeks after the injection event, the TCE concentration had decreased to 2,700 µg/L. The TCE concentration in MW -15D rebounded in May 2006 following dissipation of the permanganate in MW -15, and another permanganate injection event for the deep overburden in the vicinity of MW -15D was conducted in August 2006. The TCE concentration in MW -34D increased from 3,700 prior to the October 2006 n permanganate injection event to 110,000 gg/L after the injection event. As discussed in Subsection 2.2, a pump was installed in MW -34D and groundwater was pumped to the n1 Building 70/71 groundwater treatment system from 16 February until 6 March 2006. There were two objectives of this pumping effort: n L2 G:\PROJECTS\11621030\0&M_AND_MONITORING\08M_REPORTS\DECOS-MAV06REPORT\REPORTO%6.DOC 14 SEPTEMBER 2007 3-9 r� Phase V Inspection and Monitoring Report 1 December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM ■ To remove contaminant mass via the high WE concentrations in the groundwater. " ■ Draw permanganate into the vicinity of MW -34D. The WE concentration in MW -34D dropped from 110,000 µg/L prior to pumping of MW -34D r to 1700 µg/L when MW -34D was shut off on 6 March 2006. The WE concentration increased to v 11,000 µg/L on 8 May 2006. Pumping of MW -34D was conducted again during the next I reporting period in response to further rebound of the WE concentration in the well. Monitoring , of MW -34D has shown that no permanganate has been drawn into the well as a result of the r pumping. An evaluation is currently being conducted to determine if additional deep overburden injection wells are needed to fully treat the subsurface in the vicinity of MW -34D. . -. � l The deep overburden/shallow bedrock area in the vicinity of the deep overburden injection well field between IP -149D, MW -45D, IP -151D, and IP -153D contained high concentrations (>0.5%) of permanganate throughout the reporting period, indicating continued treatment of the r\ contaminated groundwater and soils in this zone. Extensive testing at this site has shown that whenever the permanganate concentration is >0.3% or greater, the WE concentration is less than 2,500 µg/L. Therefore, the continued persistence of permanganate in the contaminated area -1 minimizes the likelihood that large-scale additional permanganate injections will be needed to r• attain the cleanup objectives in the deep overburden/shallow bedrock zone. As noted above, limited additional injections may be needed to treat the area in the vicinity of MW -15D and r MW -34D. 3.2.4.3 .Groundwater Monitoring Results in Building 70/71 Area - Shallow Overburden ` As shown on Figure 6, the WE concentrations in the shallow overburden monitor wells on the .� perimeter of the Building 70/71 plume (MW -20, MW -28, MW -37, MW -38, MW -39, and MW -48) have decreased to below the UCL. The WE concentrations in the central area of the shallow overburden plume (Figure 7 — MW -22, MW -24, MW -25, MW -26, MW -27, MW -31, \ MW -33, and MW -34) are all trending downward and, with the exception of a rebound in MW -27 below the 50,000 µg/L UCL. The rebound in the area of MW -27 was treated with a permanganate injection event in October 2006. G:\PROJECTS\11021039\0&M_AND MONITORING\08M_REPORTS\DEC05•MAVOSREPORnREPORT0500.DOC 14 SEPTEMBER 2007 3-10 F7 u n u n n n n u n L4 n u n n n r v LJ F1, I L Ek Phase V Inspection and Monitoring Report I December 2005 - 31 May 1006 Buildings 30, 51 and 70171 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM The WE concentrations in the source area of the plume (Figure 8 — MW -14, MW -21, MW -23, MW -30, MW -42, and MW -45) have also decreased significantly since commencement of the ISCO program, and are now less than 20,000 gg/L WE in all six wells. Permanganate continues to persist throughout most of the Building 70/71 contaminant source area 2.5 years after commencement of the ISCO program. This long-term persistence of permanganate has likely provided very effective treatment of chlorinated ethenes present in soil and groundwater. Therefore, it is unlikely that WE concentrations will rebound to levels greater than the cleanup objectives following the eventual dissipation of the permanganate. 3.2.4.4 Groundwater Monitoring Results in Building 70/71 Area — 1,1,1 -Trichloroethane As shown on Figure 2, there is an approximately 1,500 square foot (so area of 1,1,1 -trichloroethane (111 -TCA) contamination in groundwater below Buildings 70 and 71 that exceeds the Method 1 GW -2 standard for this compound. Because 111 -TCA is not oxidized by permanganate, it has persisted in the groundwater during the ISCO program. Fenton's Reagent, an alternative oxidant that destroys 111 -TCA, has been injected into the subsurface in the 111 -TCA area during September and October 2006 and May 2007. Monitoring results to date have shown significant destruction of 111 -TCA as a result of the Fenton's Reagent injections. These results will be submitted in the Phase V report for the next reporting period. A disadvantage of Fenton's Reagent is that it does not persist in the subsurface for more than a few weeks. Therefore, additional Fenton's Reagent injection events are projected during 2007 in order to complete remediation of the 111 -TCA area. 3.2.5 Building 70/71 Indoor Air Monitoring and Results The indoor air sampling locations are shown on Figure 4. Indoor air samples were collected in Buildings 70 and 71 at three locations (K40, 71-35AE2, and AA -17) on two dates during this reporting period: 1 February and 28 March 2006. During the 1 February 2006 sampling event, a sample was also collected at column V37 to evaluate indoor air quality downgradient from the contaminant source area, and in a location that is minimally impacted by the subslab ventilation systems in Buildings 70 and 71. G:\PROJECTS\11621039\0&M_AND_MONITORING\08M_REPORTSIDEC05-MAY06REPORTTREPORT0506.DOC 14 SEPTEMBER 2007 3-11 Phase V Inspection and Alonitoring Report l December 2005 - 31 May 2006 _ Buildings 30, 51 and 70/71 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM Indoor air samples were collected using evacuated Summa canisters over an 8 -hour period in ` ' accordance with MassDEP indoor air sampling guidance. The SVE components of the Building 70/71 remediation system, including sub -slab vapor extraction trenches in Buildings 70 J and 71, and the HVAC systems for Buildings 70 and 71 were operating normally during these two sampling events. The indoor air samples were couriered to STL under COC procedures and u analyzed for VOCs using EPA Method TO -15. The indoor air sample results for this reporting period, as well as historical sampling results for these locations, are summarized in Table 3. Copies of laboratory data packages for the indoor air samples are provided in Appendix D. The analytes detected in indoor air during the reporting period were present at very low concentrations, well below the Occupational Safety and Health ` Administration requirements for workplace exposure. Trichloroethene, the primary site contaminant, was detected at two (71-35AE2, and 40AAE2) of the four indoor air monitoring locations in Buildings 70 and 71 at concentrations ranging from 2.3 to 3.7 µg/m3. Trans-1,2-dichloroethene, a breakdown product of TCE, was detected in Buildings 70 and 71 at two locations at concentrations ranging from 7.9 to 11 µg/m3. Other VOCs that were detected in the Building 70/71. air samples during this reporting period include acetone, cis-1,2-dichloroethene, chloromethane, dichlorodifluoromethane (Freon 12), isopropyl alcohol, m,p-xylene, 2-butanone, methylene chloride, toluene, and trichlorofluoromethane (Freon 11). ` Several of these analytes (Freon 11, Freon 12, isopropyl alcohol, methylene chloride) are not groundwater or soil contaminants at the site, and their presence in indoor air is likely the result of previous or ongoing use of these VOCs in the operations, manufacturing, and/or packaging activities in Buildings 70 and 71. FM 3.3 RESULTS OF BUILDING 51 SAMPLING AND MONITORING PROGRAM ` W During the reporting period, the Building 51 groundwater extraction and treatment system 4 operated in December 2005 and April 2006. The system was off-line for repair of the extraction well pumps, controls, and down -well piping during January through March and May 2006. The . results of the influent and effluent monitoring of the Building 51 remediation system are provided in Table 7. Figure 9 is a graph of the influent concentrations of TCE and cis-1,2-DCE, M G:\PROJECTS\11821039\0&M_AND_MONITORING\O&M REPORTS\DEC05-MAYDBREPORT\REPORT0506.DOC 14 SEPTEMBER 2007 , 3-12 Phase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems RESULTS OF INSPECTION AND MONITORING PROGRAM which are the two most predominant contaminants in the treatment system influent. Figure 9 shows that, while there have been significant fluctuations in influent VOC concentrations, there was a general trend of increasing concentrations of TCE and cis-1,2-DCE in the treatment system influent during 2005 followed by a general decreasing trend in the first half of 2006. The increase in contaminant concentrations in the influent to the Building 51 remediation system appears to be related to a general increase in groundwater contaminant concentrations downgradient of the Building 70/71 source area. Figure 10 shows TCE concentrations in several downgradient wells since the year 2000, and shows that the TCE concentration has increased since 2003 in MW -9S, MW -9D, MW -52S, and MW -55. This increase in the concentration of TCE in some downgradient wells may be related to permanganate injection and/or rainfall/snowmelt infiltration events in the contaminant source area. Contaminants appear to migrate from the low -permeability formation in the source area into the higher, permeability downgradient zones. Oxidant injection and major infiltration events that elevate the water table in the source area may accelerate lateral and downward vertical migration of contaminants to the adjacent higher permeability zones. Once in the high permeability zones, the groundwater contaminants appear to be migrating relatively rapidly to downgradient monitor and extraction wells. As remediation of the Building 70/71 source area progresses, the flux of groundwater contaminants into the high permeability zone and downgradient wells is expected to decrease, thereby causing the concentrations in the downgradient areas to also decrease. GIPROJECTS1111121039108M_AND_MONITORING\08M_REPORTS\DEC05-MAYOOREPORTIREPORTM6.DOC 14 SEPTEMBER 2007 3-13 SECTION 4 SUMMARY AND CONCLUSIONS n Phase V Inspection and Monitoring Report Li ! December 2005 - 31 May 2006 1�m Buildings 30, 51 and 70/71 Remediation Systems F1 Li 4. SUMMARY AND CONCLUSIONS n This section summarizes the results of the inspection and monitoring activities performed for n u RTN 3-0174 during the reporting period. n 4.1 BUILDING 30 REMEDIATION SYSTEM L F-1 The SVE portion of the Building 30 remediation system operated in pulsed mode during this Li monitoring period, with the only system downtime related to minor system maintenance and n changeout of the vapor phase activated carbon. The AS portion of the remediation system has not L1 been operated since February 2003 because of the localized water table upwelling that results n during operation of the AS system and the implementation of ISCO in the Building 30 area for `J treatment of contaminated groundwater. Periodic monitoring of the system was performed during r� this monitoring period to assess the performance of remedial actions, as reported in Section 3. ri Results of the periodic monitoring of the Building 30 remediation system indicate that the SVE Lportion of the remediation system is functioning adequately and is continuing to extract VOCs from the subsurface. Because of pulsed operation, the contaminant removal rate increased to 'u 2.5 to 4.1 lbs/day when the treatment systems was restarted after being off for 2 weeks. The contaminant removal rate decreased to less than 0.5 lbs/day within 2 to 3 days after each restart of the system. These results indicate that removal of VOCs is limited by diffusion contaminants from lower -permeability areas into the subsurface air flow channels. Pulsed operation will be continued during the next reporting period in order to improve the operational efficiency of the n system and to monitor the impacts of SVE system downtime on indoor air quality. i U As shown in Table 4, groundwater contaminant concentrations in the vicinity of the Building 30 remediation system have decreased significantly since the startup of the treatment process in July 2002. This reduction in contaminant concentrations is likely a result of volatilization of Cgroundwater contaminants into vadose zone soil gas, and subsequent extraction by the SVE n system. The ISCO injection in the Building 30 Area in January 2004 also likely destroyed some contaminants in situ. In MW -44, the most highly contaminated well in the Building 30 area, the concentration of TCE, which had been trending downward, did increase to 71,000 µg/L in G:\PROJECTS\11021039\O&M_AND_MONITORING\O&M_REPORTS\DEC05-MAY06REPORT\REPORT0508.DOC 14 SEPTEMBER 2007 n 4-1 u Please V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems SUMMARY AND CONCLUSIONS May 2006. This rebound of TCE in MW -44, approximately 2.3 years after the initial ` permanganate injection in the Building 30 area, was addressed by an additional permanganate injection event in June 2006. ` Two indoor air sampling rounds were conducted during this monitoring period as discussed in Section 3. These sampling events were conducted with the Building 30 treatment system off-line during, and for 2 weeks prior to the sampling event. The results of the indoor air sampling events indicate that the small amount of contamination remaining in the subsurface is having a very minimal impact on indoor air quality, even with the remediation system off-line. k Trichloroethene, the primary site contaminant, and several other VOCs were detected at low concentrations at the two air sample locations in the Building 30 area during this reporting period. The concentration of VOCs in indoor will continue to be monitored to assist with evaluation of the effectiveness of the ongoing remedial activities. An overall evaluation of the Building 30 area indicates that significant progress has been made in cleanup of the site. Continued operation of the remediation system, and additional permanganate injections, if necessary, should further reduce the potential for soil and groundwater contaminants to migrate to indoor air to the point where the treatment system can be shut down permanently, and an RAO filed for the site. 4.2 BUILDING 70171 REMEDIATION SYSTEM Groundwater quality data show significant reductions in contaminant concentrations throughout the contaminant source area. The TCE concentrations in the monitor wells throughout the shallow overburden plume have now decreased to below the UCL. Sodium permanganate, the ISCO reagent, continues to persist throughout most of the source area, 2 years after commencement of the ISCO program. This long-term presence of permanganate should continue to oxidize chlorinated ethenes in groundwater and minimize the potential for rebound of contaminant concentrations once the permanganate eventually dissipates. GAPROJECTS\1 l621039108M_AND_MONITORING\08M_REPORTS\DEC05•MAYO6REPORT\REPORTO506.DOC 14 SEPTEMBER 2007 4-2 a Phase V Inspection and Monitoring Report ,U 1 December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems n SUMMARY AND CONCLUSIONS `-' As of May 2006, there are some exceedances of the UCL remaining in the source area of the Fl deep overburden plume. An additional permanganate injection was conducted in the deep L► overburden during August 2006 to provide additional treatment of this area. u There is a 1,500-sf area in the vicinity of MW -30, MW -31, and MW -33 that is contaminated n with 1,1,1 -TCA, which is not oxidized by permanganate. This area was treated using Li Fenton's reagent during -September and October 2006. n Li Two indoor air sampling rounds were conducted during this monitoring period at locations in n Buildings 70 and 71. The results of the indoor air monitoring show the presence of some 'L groundwater and soil contaminants at low concentrations in indoor air. The continued presence of many of these contaminants in the influent to the Building 70/71 SVE/sub-slab ventilation I systems indicates that this system should remain in operation for the near future while the ISCO n program further reduces groundwater contaminant concentrations. Monitoring of the regenerative vapor phase carbon adsorption system in May 2006 showed removal of 94% of the n contaminants in the carbon system influent. The regeneration process steam time, was increased during June 2006 in order to improve the contaminant removal efficiency of the carbon system. n u 4.3 BUILDING 51 REMEDIATION SYSTEM (, The monitoring results from the Building 51 groundwater extraction and treatment system indicate a general increasing trend in contaminant concentrations in the high permeability sand n and gravel zone that is downgradient of the Building 70/71 source area. This increase may be may be the result of increased outward and downward vertical migration of contaminants that is caused by injection of permanganate and/or significant infiltration events in the contaminant L source area. The downgradient contaminant concentrations are expected to decrease as the F-1 treatment of the contaminant source area progresses. L F, U n �U G1PROJECTS\11621039\0&M_AND_MONITORING\08M_REPORTS\DEC05-MAV06REPORT\REPORT0506.DOC 14 SEPTEMBER 2007 4-3 SECTION 5 RECOMMENDATIONS F Pit ase V Inspection and Monitoring Report v I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems n 5. RECOMMENDATIONS n 5.1 BUILDING 30 REMEDIATION SYSTEM n L, The Building 30 remediation system will continue to be operated, maintained, and monitored in n accordance with the OM&M Plan, although adjustments and modifications will likely be made LJ as the system is evaluated by WESTON, and as the ISCO program is implemented to accelerate n remediation of contaminated groundwater in the Building 70/71. For the next reporting period, the schedule for operations and monitoring of the remedial action n U in the Building 30 area is as follows: ■ Ongoing operation and maintenance of the Building 30 remediation system in pulsed mode with cycles of 2 weeks on and 4 weeks off. ■ Injection of sodium permanganate into the saturated zone in the MW -44 area in order to address the recent rebound of the TCE concentration in MW -44. P ■ Collection of indoor air quality samples in August and October 2006. The indoor air sampling events will be conducted at the end of the 4 -week off periods for the system. This will provide a worst-case evaluation of the impacts of pulsed operation on n indoor air quality in Building 30. L ■ Collection of groundwater samples from monitor wells in the Building 30 area in (1 November 2006. LJ ■ Additional groundwater monitoring as necessary to monitor the effectiveness of the n ISCO program. u 5.2 BUILDING 70/71 REMEDIATION SYSTEM The Building 70/71 remediation system will continue to be operated, monitored, and inspected in r� accordance with the OM&M Plan. Adjustments and modifications will likely be made as U performance monitoring data for the treatment system and ISCO program are evaluated by WESTON. n n G APROJECTS\71621039\0&M_AND_MONITORING\08M_REPORTS\DECOS-MAYO6REPORT,REPORTO506.DOC 14 SEPTEMBER 2007 M 5-1 i Phase V Inspection and Monitoring Report 1 December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems RECOMMENDATIONS For the next reporting period, the schedule for operations and monitoring of the remedial action ' in the Building 70/71 area is as follows: ■ Ongoing operation and maintenance of the SVE components of the Building 70/71 remediation system. ■ Operation of the groundwater treatment components of the Building 70/71 remediation system when necessary to treat water generated by groundwater extraction or the SVE systems. ■ Monthly sampling of the process water influent and effluent from the treatment system (when sufficient water is generated to operate the system). ■ Collection of process vapor samples from the Building 70/71 remediation system in August 2006. ' ■ Collection of indoor air quality samples in August and October 2006. ■ Injection of Fenton's reagent into the subsurface for treatment of the area with 111 -TCA contamination. DZ ■ Monitoring of the permanganate distribution throughout the ISCO area. ■ Injection of permanganate into the deep overburden to treat the elevated TCE concentrations in the vicinity of MW -15D. ■ Installation of five additional deep overburden monitor wells to verify the extent of the deep overburden that requires remediation. ■ Collection of groundwater samples from approximately 9 extraction wells and , 15 monitor wells in November 2006. Wells with greater than 100 mg/L permanganate will not be sampled. ■ Additional monitoring as necessary to monitor the effectiveness of the remediation system and ISCO program. l J 5.3 BUILDING 51 REMEDIATION SYSTEM Operations of the Building 51 system will be continued during the next reporting period. This system commenced operation in 1990 in order to protect groundwater quality in the GW -1 area in the northeast corner of the property in the vicinity of the former production wells PW -1, r � PW -2, and PW -3. Groundwater quality and gradients in the vicinity of the Building 51 system G:\PROJECTS\11821039\0&M_AND_MONITORING\O&M_REPORTS\DEC05-MAV06REPORT\REPORTO506.DOC 14 SEPTEMBER 2007 , 5-2 Pit ase V Inspection and Monitoring Report I December 2005 - 31 May 2006 Buildings 30, 51 and 70/71 Remediation Systems ®, RECOMMENDATIONS will continue to be monitored during 2006 and 2007 in order to determine when the system should be shut down. 5.4 INSPECTION AND MONITORING REPORTS Inspection and monitoring reports will be submitted to MassDEP on a semi-annual basis following the April and November monitoring rounds. These reports will include a description of the activities conducted at the site, any modifications in operations or monitoring that occurred, any problems encountered, and the measures taken to remedy conditions affecting system performance. The analytical results for samples collected for monitoring purposes during the reporting period will be, summarized in the semi-annual reports. The next Phase V IM Report will cover the reporting period of 1 June through 30 November 2006. 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O N1 N N r z z z N�� N N N N N 1`I ry auaglao.wlgau l 00 N N Q VI O VI Q N N N Q b r h PI q uaglaoaolgal(j-z`I-sueal z O OD z O z Q OC z N VI z M z O — z V N z b N r VI O a N O a O O O N h o0 N C auanloy uejglo,ipSgeilaZ q o q q N z z z z auaglaoaolgaealaZ auaj, js q q O N z z z z M ry N N N N N N N O O O O O auaj, x-0 O N N N N N N N N h n�O z z z z M 7 N N N N N N N N O O O O aualeglgdeNq q q q q q A ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ e Z z z z z z z z Z z z z z z Z z z z z 0 D Z) D > ` aplaolgj aualsq)aW Q Q q z N o M M a — 0D r U jaglg lAng-laal lgglaW z z z z M auolaM l,(4ngosl lgglaW Z Z z Z h — N N M N N N fV N N N N N Q N auola)l Vg33 IsglaW q q q q I a; n M n Z z z z auolaN lcing liglaLV od z z z N N N N z M M N N N N N Q tV aualAX -d'w Q Q M N N N N N N N N N h h N h M N 7 z z M M N N N tV N eV O O O Q N logoale lgdoidosi N Q o la h V M M Q — ^+ r N N — N N N '� N N N N ry r M w a M auexal{ z z Z M M C O C H aueldaH m M O 00 00 p 00 z0 ¢ z ¢ CN[7 z ¢ fNil z ¢ t ] ¢ tryil a W ¢ W ¢ W a [Nil N ¢ W tV ¢ CNcI N a LL1 N ¢ Yryl N ¢ W ¢ a W ¢ [Ncl ¢ f? a W ¢ til alslt+ MOIJ1Nil f• z z z z z r z z O N � � FSI V5 M O Vt M V1 M V1 lit V1 M V1 M m M m M V1 M 11 M M r7 V1 M � T � y5 M — � M � M V5 M � h ^ C h h h h h h h h h h h al D. h al a -- � a,O a5 •- S O N 1, O O N O \I M S O O N O O N S N O N O N O N n S N O N S N O N S N O N r+ d l- d N ry O ^ N N N N N N N N N N N N N N N N N N N N C •� ci � H Vl Y1 v1 Vt h Vt V1 Vl h v1 v1 M H H h h h h h h h h h h h h h h h h h h h h n C� I � LA, E u r u �r a � 3 N O C O �i r t0 41 d U O �> N^ o9 C N d E n E r r O N O O c f U O E u r u �r auazuag J, qJ3 z N^ o9 o9r r r r N fJ O O O O O loueylg e z z z z z z z z ueglawoaonulpaolyalQ N N PI N Q Nj } pj O O 7 O O ZD O O auexayola,Cj °z - r ° , IT a, c c 0 0 0 auaylaoiolyalQ-Z`I-slaz N N r C, c ^ o or, 0 a 0 � � O aueylawojoly3 w.10;oJolgj z N N 0 0 O 0 O 0 N T 0 auazuagoiolga Z O O N O N O 00 N O �E > > 5 :D apulnslQ uogiej z o 0 0 o o o i O a 0 0> 0 0 0 e L auazuag z O O O O O Uauolaab z N N N N N y N N auanlollXylg-b z N > N > 0 O 0 O 7 0 O 7 0 O N O T 0 O auexOlQ t'I Z m m m °0 m oO 0 00 auazuagoiolyalQ b'I z == N N N ry auazuagl,fylawlay-c,'£'I N N G O O O O O N Q O auazuagl,(ylaw!JJL-q'Z`I Z N N a 0 T 0 0 T 0 N T 0 O O D Z) > > > auaylaoJolyalQ-I`I z N N ° 0 a, 0 " 0 °` 0 °` 0 aueylaoaolyalQ-[`I N O O 0 O 0 0 0 0 Fu--go-ow,l�Z-I`I`I NNW O v O n O u`Ji O � O c`Jv O w O w Q w uNi .Noll g— d °- E'>> O R d o d Q Q Q Q v a V1 v •V y N N N N N o N 0 N 0 N N U c u A � b m f� w o 0 3w :, z N N IaueylawaonuwolyaljZ r r N N auaylaoiolyaljy N r a v r uaylaoiolyal(l-Z`l-suell z o N o N a O N a r O o r O auanloy r o r ? o r „ 0 a ri ueanjojp,Cye.ila,L z = N auaylaaolyae�lay Z z Ln Ln o q a N e r a auaJ,(lg 0 W z N N 0 0 0 0 0 aual fX o z N N; o9 og og �E o 0 o c o e� cauale474de1,i z z z z z z z z z amiolu auals47ay11 N N f`1 M1 u C U jayl3lOng-laa11S47a1^I z auolax 1,4ngosl iSglaw DDD 7 J au0la?114131947aL1I auolaM 14ng 1�gjatV Z N N N CJ N t4 V N aualgX -d'w z 00 00 N N 0 0 00 c V N loyoale lAdoidosl z N N M N O h auexall z o o N aueldag A z o 0 0 0 o alsiv C.7 Y] tNi] 41 W W W W a W Moll c• d E o z > > > > O N N N d •� b01 O N N N N 8 N R _N _N — V C n CQy Q CQy lqy ¢ CQ.� 4Q.j lQ� f� w o 0 3w n L4 r7 E u O N co M LA d .0 r d N = t6 0 m 'C r+ d d O O ci O L = a�, E.0 n W E GI V d N V d 0 N 7 p Li o \ 0 M 0 N N O 1� u1 C v ^ M w 7 w vl w 0 0 0 0 o U y N y N E y E y cl > > O1 N O1 07 kn Z �c l- I� 00 O1 1 00 00 a0 00 O M M M V Vl z Z Z O V d N d' M . v1 Ln 't Ln V vl It kn I w) vl V wi V w It Z V V z It z I z (- V l- It l- It l- It l- 'IT I- 'IT h Ill I- �t t - V O W U � o U O M M O1 1,0 Vl O1 10 O N N 01 N h M V1 00 V1 N - M O O O O O O N O O O O O O O O O O O O M O O O O M O y w Vl O O y Gz. 00 00 00 00 00 00 O 00 00 00 00 00 00 00 v 00 00 kvn)00 00 00 00 u 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 — — 00 00 00 00 00 00 Q C � � C aLi L b 0 O O O O O O O O O O O O O O O O O O O O O O O O O O C O R H O O O O O O O O O O O O O O O O O O O O O O O O O O O u v U Q cl) O > U � X 0 ,L O O O O M O O O O M O O O O O O O O O O O O O O O O O C W U c O > L > O1 N M M -n N w) z Vl O N N �T <T N o0 r+ O O1 00 O1 , N 00 M vl C,;�n 00 0 0 �--� N N N N N d' N O O -- u rq � C C O � C v. o i y 00 t` " N M 01 O r- N '[r M M M Z r, (` 00 O Z M 7 O1 O N N N N N N N N N N t- N 00 N O1 N O M O M O M O M .-- M �--� M .--� M .-y M N M N M M M M M M M � U O C CO Q C � C ,M. 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D .7 .`- � W A O N N i V O O O In 00 O N r V ON O w M O y N N N N N M O N O W Q > a � V N vl �.• U � 01 � O M D1 Vl r 00 -. .-- M y w N M 00 M N N N M r � ,.y O 3� ACN O � V V i=L =L =L =L =L i =L =L = L Y C v � lu 7 d r o N T y U V O ani W O O O t p 0 O N N nyI Q 0] t U U oaaa Q n C N V O V' N C, a ON O r- N M X a 00 N N N NV) a N N V 00 V' aaa V1 Wl ^ O ^ M ^ a ^ O M 00 00 0 M 00 � �q C, w r- N r- Vn O� 7 V1 WO N O 7 O O^ O O C, (p C1 h � oaaaaaaaaaa a N iD �q N h 00 N N v1 DD V C\ l- 00 M 00 Q � b Cl O\ N o a a a a a a a a a a a a a N N 00 N 00 00 N N v1 M 7 O\ l� 00 M 'q c d V N M N N C1 O A �o C\ Q O\ a a a a a a a a a a a a a a s 0 0 0 0 o0 O v1 r V r- �Rr N N O N N y d Q C o a a a a a a a a a a a a s O O� DD v'i V O 00 M O z ITN r4 M v1 M 7 M O 00 N O 00 C 6� t M N N eS G c , Eoaa:Daaaaaaaaaa as v O O O O O O O O O O O O O O O O O > h C O M ^ ^ �c D\ ,I- Or- D\ r O N O O >% N-- M N ^ V ^ N^ N M N ^-� O N --� O N N U oQ a a a a�D a a a s a s p o 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 o W Q 00^ M r M O M C,00 M 00 > N y M aD a a a a a a a a a a a s 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 00 N rn 0 00 0 o v r o v o o,r 0 z d Q aj 00 I- h C1 N 00 DO c, 00 d' ^ 'D 00 i � .~- r C O T U7 "e 'e "e "e "e "e E " L d Jd ❑ N W .c°c R a b O X U O a0i v e N y > U C y i. aCi W a 0 0 0 p d cn U u Q nE a =L M u C I LA rj Ls n .Lr iM I. n t-! Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) MCP Ground- water Classi- fication u g Fu d Lo S .: Y L 0 CA .r C � 0 A d 0 c A G1 -• .0 a+ a N C qj 0 9 L g O co 0 A o U 6 L U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 1001000 1,000 20,000 1001000 80 309000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 f 100,000 700 50,000 NL NL NL 100,000 400 10,000 Buil&ng 30 AT&'T-1 12/30/1992 GW -2 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 1/8/1993 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 1/27/1993 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 3/15/1993 ND ND ND ND ND NR ND ND ND ND NR AT&T-] 12/1/1996 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 6/24/1997 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 925/1997 ND ND ND ND ND NR ND ND ND ND NR AT&T-] 12/10/1997 ND ND ND ND ND NR ND ND 480 ND NR AT&T -1 325/1998 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 6/30/1998 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 925/1998 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 12/15/1998 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 12/14/1999 ND ND ND ND ND NR ND ND ND ND NR AT&T-] 9/122000 ND ND ND ND ND NR ND ND ND ND NR AT&T -1 2202003 2.0 U 2.0 U 1.0 U IOU 2.0 Ul NR IOU 2.0 U 2.0 U NR 2.0 U AT&T-] 10/13/2003 10 U 10 U IOU 10 U IO U 500 U 500 U 10 U 10 U 20 U 10 U AT&T -1 7/152004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U AT&T] 4212005 1.0U I.0U I.0U 1.0U 1.0U 50U 50U LOU 1.0U 2.0U I.0U AT&T 1122005 0.26 U 0.18 U 0.20 U 0.080 U 0.080 U 6.7 Ul 3.8 U 1 0.14 U 0.13 U 0.22 U 0.15 U AT&T -2 1/8/1993 GW -2 4.4 1.0 ND ND ND NR ND ND ND ND NR AT&T -2 3/15/1993 6.0 1.0 ND ND ND NR ND ND ND ND NR AT&T -2 12/1/1996 1.0 ND ND ND ND NR ND ND ND ND NR AT&T -2 624/1997 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 925/1997 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 12/10/1997 ND ND ND ND ND NR ND ND 510 ND NR AT&T -2 325/1998 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 1 6/30/1998 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 925/1998 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 12/15/1998 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 12/14/1999 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 3/142000 ND ND I ND ND ND NR ND ND ND ND NR AT&T -2 9/122000 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 12/152000 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 3/14/2001 ND ND ND ND ND NR ND ND ND ND NR AT&T -2 12/112001 0.57 ND ND ND ND NR ND ND ND ND NR AT&T -2 2202003 2.0 U 2 Ul 1 U ND 2 U NR 10 U 2 U 2 U NR 2 U AT&T -2 10/132003 1 1.0 U I U1 1 Ul I Ul I U 50 Ul 50 Ul 1 U 1 U 2 U I U �4 l of 50 L� 9/14R001 Table 4 ` Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration () MCP Ground- water Class!- fication s A71 b a, W w iY a i y a d a V o$ .-4 u z A o F F° u .�. C t g F O o H b �1 5. MCP UCL MCP GW -2 MCP GW -3 100,000 100 50,000 100,000 9,()00 500 100,000 50,000 50,000 100,000 50,000 50,000 100,000 501000 509000 100,000 10,000 50,000 100,000 50 30,000 80,000 8,000 4,000 1 100,000 90 509000 50,000 30 5,000 NL NL NL 10010001 2 50,000 13aij&n 30 AMT- 1 12/30/1992 GW -2 ND ND ND ND NR ND ND ND ND 6,600 NR ND A7'&T--1 1/8/1993 ND ND ND ND NR ND ND ND ND 1,700 NR ND A7'&T-1 1/27/1993 ND ND ND ND NR ND ND ND ND 18,000 NR ND AT&7=1 3/15/1993 ND ND ND ND NR ND ND ND ND 8,800 NR r ND A'f&T-I 12/1/1996 ND ND ND ND NR ND ND I ND ND 26.000 NR ND AT&T -1 6/24/1997 ND ND ND ND NR ND ND ND ND . 5,100 NR N2 - AT&T -1 9/25/1997 ND ND ND ND NR ND ND ND ND 4.400 NR ND AT&T 1 12/10/1997 ND ND 35 ND NR ND ND ND ND 2,400 NR ND AT&T -I 3/25/1998 ND ND ND ND NR ND ND ND ND 760 NR ND AT&T -1 6/30/1998 ND ND ND ND NR ND ND ND ND 12,000 NR ND AT&T -1 9/25/1998 ND ND ND ND NR ND ND ND ND 7,500 NR ND AT&T -1 12/15/1998 ND ND ND ND NR ND ND ND ND 8,800 NR ND AT&T -1 12/14/1999 ND ND ND ND NR ND ND ND ND 1.500 NR ND 1 AT&T -1 9/12/2000 ND ND ND ND NR ND ND ND ND 4;600 NR ND AT&T -1 2/20/2003 2.0 U 2.0 U 10 U 10 U 2.0 U 5.0 Ul 2.0 U 2.0 U 2.0 U 420 2.0 U 2.0 U AT&T -I 10/13/2003 10 U 10 U 100 U 100 U IOU 20 U 10 U 10 U IOU 84 20 U 20!11 AT&T -1 7/15/2004 5.0 U 5.0 Ul 50 U 50 U 5.0 U IOU 5.0 Ul 5.0 U 5.0 U 430 5.0 U 5.0 ' AT&T -1 4/21/2005 1.0 U1 LOU IOU IOU 1.0U 2.0U LOU 1.0U LOU 19 LOU ""JU AT&T -1 11/2/2005 0.39 U 0.38 U 1.9 U 1.0 U 0.58 1 0.50 U 0.14 U 0.50 U 0.21 U 22 0.26 U 0.22 AT&T -2 1/8/1993 2 ND ND ND ND NR ND ND ND ND I NR ND AT&T -2 3/15/1993 ND ND ND ND NR ND l ND ND 1 NR ND AT&T -2 12/1/1996 ND ND ND ND NR ND ND ND ND 8 NR r ND AT&T -2 6/24/1997 ND ND ND ND NR ND ND ND ND 3 NR ND, AT&T -2 9/25/1997 ND ND ND ND NR I ND ND ND ND 3 NR ND AT&T -2 12/10/1997 ND ND 35 ND NR ND ND ND ND 33 NR ND AT&T -2 3/25/1998 ND ND ND ND NR ND ND ND ND 260 NR ND AT&T -2 6/30/1998 ND ND ND ND NR ND ND ND ND 4 NR ND AT&T -2 9/25/1998GW ND ND ND ND NR ND ND ND ND 2 NR ND AMT -2 12/15/1998 ND ND ND ND NR ND ND ND ND 2 NR ND AT&T -2 12/14/1999 ND ND ND ND NR ND ND ND ND 53 NR ND AMT -2 3/14/2000 ND ND ND ND NR ND ND ND ND 110 NR ND . AT&T -2 9/12/2000 ND ND ND ND NR ND ND ND ND ND NR ND AT&T -2 12/15/2000 ND ND ND ND NR ND ND ND ND 34 NR ND AT&T -2 3/14/2001 ND ND ND ND NR ND ND ND ND 87 NR ND AT&T -2 12/11/2001 3 ND ND ND NR ND ND ND ND 4 NR ND AT&T -2 220/2003 2U 2U IOU 100 2U 5U 2U 2U 2U 2U 2U 2b AT&T -2 10/132003 I U l U 10 U1 10 U l U 2U l U I U l U 1 J 2U 2 U Tab�84 2 of 50 �,,,, n W U 'n u r u r� L C Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID 1 Sample Date u Twit, Concentration ( ) Grow d- water Claagi- 1 (cation a G q b aq 0 a`o U 6 0 U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 1001000 1,000 20,000 100,000 80 301000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 1001000 700 50,000 NL NL NI 1009000 400 10,000 Building 30 continued AT&T -3 1/8/1993 CW -2 6.5 2 ND ND ND NR ND ND ND ND NR AMT -3 3/15/1993 6.9 2 ND ND ND NR ND ND ND ND NR AT&T -3 9/12!2000 ND ND ND NG ND NR ND ND ND ND NR AT&T -3 12/15/2000 ND ND ND ND ND NR ND ND ND ND NR A"T&T-.i 2!20/2003 2.0 U 2 U I U NR 2 U NR 10 U 2 Ul 2 U NR 2U MW -43 1/11/2000 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -43 6/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -43 9/12/2000 ND ND ND ND ND NR ND ND ND ND NR MW -43 12/15/2000 ND ND ND ND ND NR ND ND ND ND NR MW -43 3/14/2001 ND ND ND ND ND NR ND ND ND ND NR MW -43 2/20/2003 40 U 40 U 20 U NR 40 U NR 200 U 40 U 40 U NR 40 U MW -43 2/20/2003 200 U 200 U 200 U NR 200 U NR 10,000 U 200 U 200 U NR 200 U MW -43 10/13/2003 200 U 200 U 200 U 200 U 200 U 10.000 U 10,000 U 200 U 200 U 400 U 200 U MW -43 421/2005 25 U 25 U 25 U 25 U 25 U 1,200 U 1,200 Ul 25 U 25 U 50 U 25 U MW -43 1122005 6.5 U 4.5 U 5.0 U 2.1 U 2.1 U 170 U 95 U 3.6 Ul 3.2 U 5.6 U 3.8 U MW -43 5/92006 2.0 Ul 2.0 U 2.0 U 2.0 U 2.0 U 240 U 10" * 2.0 U 2.0 U 5.0 U 2.0 U MW -44 1/112000 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -44 9/122000 ND ND ND ND ND NR ND ND ND ND NR MW-44du 9/122000 ND ND ND ND ND NR ND ND ND ND NR MW -44 12/152000 ND ND ND ND ND NR ND ND ND ND NR MW -44 3/142001 ND ND ND ND ND NR ND ND ND ND NR MW-44du 3/142001 ND ND ND ND ND NR ND ND ND ND NR MW -44 2202003 IOU IOU 5.0 U NR 10 U NR 50 U IOU IOU NR IOU MW -44 10/132003 200 U 200 U 200 U 200 U 200 U 10,000 U 10,000 U 200 U 200 U 400 U 200 U MW -44 4212005 50 U 50 U 50 U 50 U 50 U 2,500 U 2,500 U 50 U 50 U 100 U 50 U MW -44 11/2/2005 13 Ul 9.0 U 10 U 4.1 U 4.2 U 340 U 190 U 7.2 U 6.5 U 11 U 7.5 U MW -44 5/92006 400 U 400 U 400 U 400 U 400 U 48,000 U 1 2,000--1 400 U 400 U 1,000 U 1 400 U MW -49 12/152000 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -49 1/42001 ND ND ND ND ND NR ND ND ND ND NR MW -49 3/142001 ND ND ND ND ND NR ND ND ND ND NR MW -49 220/2003 2.0 U 2.0 U 1.0 U NR 2.0 U NR 10 U 2.0 U 2.0 U NR 2.0 U MW -49 10/132003 1.0 U 1.0 U1 1.0 U1 1.0 U 1.0 Ul 50 Ul 50 U 1.0 Ul 1.0 U1 2.0 U 1.0 U MW -49 10/192004 1.0 U 1.0 U 1.0 U 1.0 U 1.0 Ul 50 U 50 U 1.0 U 1.0 U 2.0 Ul 1.0 U MW -49 2/152006 0.26 U 0.18 U 0.20 U 0.080 U 1 0.080 U 1 6.7 Ul 3.8 U 1 0.14 Ul 0.13 U 0.22 Ul 0.15 U 3 of 50 u Twit, w,.rmm Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 7081 Remediation Systems r r� Location ID Sample Date Concentration ( ) MCP Ground- water'> Classi- tication o 2 CP w r z a Cu d i y U d a o i_ r 2 ? a o F 1-4 u V A g C o o :2Well MCP UCL MCP GW -2 MCP GW -3 100,000 100 50,000 100,000 9,000 500 100,000 50,000 50,000 100,000 50,000 50,000 100,000 50,000 50,000 100,000 10,000 50,000 100,000 50 30,000 80,000 8,000 4,000 100,000 90 50,000 50,000 30 5,000 NL NL NL 100,000. 2 50,000 Building 30 continued A'T&T-3 1/8/1993 GW -2 ND ND ND ND NR ND 1 ND ND 12 NR ND AT&T -3 3/15/1993 ND ND ND ND NR ND 1 ND ND 2 NR ND ` AT&T -3 9/12/2000 ND ND ND ND NR ND ND ND ND 1 NR ND AT&T -3 12/15!2000 ND ND ND ND NR ND ND ND ND 4 NR ND AT&T -3 2!20/2003 2 Ul 2 U 10 U1 10 U 2 Ul 5 Ul 2 Ul 2 Ul 2 U 2 Ul 2 U 2 MW -43 1/11!2000 GW -2 ND_ ND ND ND NR ND ND ND ND 4,100 NR ND MW -43 6/14/2000 ND ND ND ND NR ND ND ND ND 21,000 NR ND MW -43 9/12/2000 ND ND ND ND NR ND ND ND ND 18,000 NR ND MW -43 12/15/2000 ND ND ND ND NR 6,900 ND ND ND 27,000 NR ND MW -43 3/14/2001 ND ND ND ND NR 1,200 ND ND ND 16,000 NR ND MW -43 2/202003 40 U 40 U 200 U 200 U 40 U 100 U 40 U 40 U 40 U 5,700 40 U . 40 U MW -43 2202003 200 U 200 U 2,000 U 2,000 U 200 U 400 U 200 U 200 U 200 U 3,400 400 U 400 V - MW -43 10/132003 200 U 200 U 2,000 U 2,000 U 200 U 400 U 200 U 200 U 200 U 3,400 400 Ul 4001 MW -43 4212005 25 U 25 U 250 U 250 U 25 U 50 Ul 25 U 25 Ul 25 Ul 1,600 25 U 25 U MW -43 1122005 1 10 U 10 U 47 U 26 U 7.4 U 13 U 3.5 U 13 U 5.3 U 260 6.4 U 5.6 MW -43 5/9/2006 1 2.00 U 2.0 U 15 U 5.0 Ul 2.0 U 12 J 2.0 J 2.0 U 2.0 U 180 3.0 11 2.0 1 MW -44 1/112000 GW -2 ND ND ND ND NR ND ND ND ND 5,900 NR ND MW -44 9/122000 ND ND ND ND NR ND ND ND ND 57,000 NR _ ND MW-44du 9/122000 ND ND ND ND NR ND ND ND ND 69,000 NR ND MW -44 12/152000 ND ND ND ND NR 4,500 ND ND ND 62,000 ' NR ND MW -44 3/142001 ND ND ND ND NR ND ND ND ND 30,000 NR ND e MW-44du 3/142001 ND ND ND ND NR ND ND ND ND 36,000 NR ND MW -44 2202003 10 U IOU 50 U 50 U IOU 20 U IOU IOU 10 U 820 10 U IOU MW -44 10/132003 200 U 200 U 2,000 U 2,000 U 200 U 400 U 200 U 200 U 200 U 5,200 400 U 400 f MW -44 4/21/2005 50 U 50 U 500 U 500 U 50 U 100 U 26 1 50 U 50 U 3,100 50 U 50 MW -44 1122005 19 U 19 U 95 U 51 U 15 U 25 U 130 25 U 11 U 20,000 13 U 11 U MW -44 5/92006 400 U 400 U 3,000 U 1,000 U 400 U 400 U 400 U 400 U 400 U 71,000 600 U 400 C MW -49 12/15/2000 GW -2 ND ND ND ND NR 48,000 ND ND ND 140,000. NR ND MW -49 1/42001 ND ND ND ND NR ND ND ND ND 250 NR ND MW -49 3/14/2001 ND ND ND ND NR ND ND ND ND 240 NR ND MW -49 2202003 2.0U 2.0U IOU IOU 2.0U 5.0U 2.0U 2.0U 2.0U 5.0 2.0U 2.0U MW -49 1 10/132003 1 1.0U 1.0 U1 10 U1 IOU I.OU 2.0U 1.0 U1 1.0 U1 1.0 U1 1.0 1 2.0U 2.01 MW -49 10/192004 1.0 U1 1.0U IOU 10 U1 1.0 Ul 2.0U I.0U I.0U LOU 1.0 U1 1.0U 1.0C MW -49 2/152006 0.39 U 0.38 U 1.9 U 1.0 U 0.30 U 0.5 U 0.14 U 0.50 U 0.21 U 0.19 Ul 0.26 U 0.22 1tJ Table. 4 of 50 9114007 L , i Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration (110,) MCP Ground. water Classi- I fication W F, y y p v y u iv c o MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 1001000 80 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 1001000 29000 10,000 100,000 700 50,000 NL NL NL 100,000 400 10,000 Buil&n 70/71 MW -54D 2/20!2003 GW -2 2.0 U 3.0 1.0 U NR 2.0 U NA 10 U 2.0 U 2.0 U I NR MW -54D 10/13/2003 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U 10 U 5.0 U MW -54D 11/2/2005 0.26 U 0.18 U 0.20 U 0.080 U 0.080 U 6.7 U 3.8 U 0.14 Ul 0.13 Ul 0.22 U 0.15 U MW -54S 2/20/2003 GW -2 2.0 U 2.0 U 1.0 U NR 2.0 U NR 10 U 2.0 U 2.0 U NR 2.0 U MW -54S 10/13/2003 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U so U 1.0 U 1.0 U 2.0 U 1.0 U MW -54S 4/28/2004 IOU 10 U IOU IO U IOU 500 U 500 U 10 U IOU 20 U IOU MW -54S 1 0/1 912 004 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -548 I 4/21 /2005 1.0 U 1.0 U1 1.0 U1 1.0 U1 1.0 U1 50 Ul soid 1.0 U Inill 2.0 U 1.0 U MW -54S I 1 I PMOO5 0.26 U 0.18 U 0.20 U 0.080 U 1 0.080 U 6.7 U 3.8 U 1 0.14 Ul 0.13 Ul 0.22 U 0.15 U W.54S-Du . I I I'.-/2005 0.26 U 0.18 U 0.20 U 0.080 U 0.080 U 6.7 U 3.8 U 0.14 U 0.13 U 0.22 U 0.15 U MW -01D 7/1/1986 GW -3 ND ND ND ND ND NR ND ND ND ND NR MW -01D 7/1/1987 ND ND ND ND ND NR ND ND ND ND NR MW -01D 12/1/1996 ND ND ND ND ND NR ND ND ND ND NR MW -01D 12/15/1997 ND ND ND ND ND NR ND ND 3.0 ND NR MW -01D 12/17/1998 ND ND ND I ND ND I NR ND ND ND ND NR MW -01D 12/15/1999 ND ND ND ND ND NR ND ND ND NR MW -01D 12/13/2000 ND ND ND ND ND NR ND ND ND NR MW -01D 12/12/2001 ND ND ND ND ND NR ND ND ND NND NR MW -01D 10/14/2003 1.0U 1.OU I.0U I.0U 1.0U 50U 50U I.0U 2U I.0U MW -03D 7/1/1986 GW -3 ND ND ND ND ND NR ND ND ND ND NR MW -03D 7/1/1987 ND 36 ND ND ND NR ND ND ND ND NR MW -03D 12/1/1996 ND ND ND ND ND NR ND ND ND ND NR MW -03D 12/12/1997 ND ND ND ND ND NR ND ND 280 ND NR MW -03D 12/17/1998 ND I ND ND I ND ND NR ND ND ND ND NR MW -03D 12/10/1999 ND ND ND ND ND NR ND ND ND ND NR MW -03D 12/13/2000 ND ND ND ND ND NR ND ND ND ND NR 44W -03D Dup 12/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -03D 2/20/2003 2.0 U 2.0 Ul 1.0 U NR 2.0 Ul NR 10 U 2.0 Ul 2.0 U ND 2.0 U MW -03D 10/14/2003 0.70 J 10 2.0 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U. 2.0 U 1.0 U MW -03D 1/27/2004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U W -03D Du 1/27/2004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U 10 U 5.0 U MW -03D 4/28/2004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 Ul 10 U 5.0 U MW -03D 7/15/2004 1.7 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U MW -03D 10/20/2004 1.5 2.4 1.8 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U MW -03D 11/1/2005 3.2 1 4.0 1 1.0 J 0.080 U 0.080 U 6.7 U 3.8 U 0.14 U 0.13 U 0.22 U 0.15 U 5 of 50 9/,.a, Table 4 1� Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems ` Well Location ID 1 Sample Date Concentration ( ) MCP Ground-°+ water71 CIMi- I fication Y g L o .� W a C 7 y d r y e o L s z O F y F Y t y p L F L L u F MCP UCL MCP GW -2 MCP GW -3 100,000 100 50,000 100,000 9,000 500 100,000 50,000 50,000 100,000 50,000 50,000 100,000 50,000 50,000 100,000 10,000 50,000 100,000 50 30,000 80,000 8,000 4,000 100,000 90 50,000 50,000 30 5,000 NL NL NL 100,000, 2 50,000'- Buil&ng 7017/ MW -54D 2/20!2003 GW -2 2.0 2.0 U IOU IOU 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U 18 2.0 U 2.0 MW -54D 10/132003 11 5.0 U 50 U 50 U 5.0 U IOU 5.0 U 5.0 U 5.0 U 121 10 U IO l MW -54D 1122005 46 0.38 U 1.9 U 1.0 U 0.30 U 0.50 U 0.14 U 05011 0.56 J 78 0.26 U 0.22 U MW -54S 2202003 GW -2 62 2.0 U 10 U IOU 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U 240 2.0 U 2.0-, .0 - MW -54S MW -54S 10/132003 11 1.0 U 10 U IOU- 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 10 2.0 U 2.0 U MW -54S 4282004 13 IOU 100 U 100 U IOU 20 U 10 U IOU IOU 78 IOU 10 f MW -54S 10/192004 4.3 1.0 U IOU IOU 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 7.4 1.0 U 1.0 MW -54S 4212005 5.7 1.0 U1 10 U. 10 U1 I.0U, 2.0U 1.0 Ul 1.0 Ul 1.0 Ul 22 1.0U 1.20U MW -54S I 11/22005 1.9 U 1.0 U 0.81 J 0.50 U 0.14 U 0.50 U 0.21 U 26 U 0.84 J 0.38 U 2.7 0. 0.22 r W -54S -Du 1122005 0.81 J 0.38 U 1.9 U 1.0 U 0.78 J 0.50 Ul 0.14 Ul 0.50 U 0.21 Ul 0.26 U 0.22 MW -01D 7/1/1986 GW -3 ND ND ND ND NR ND ND ND ND ND NR ND MW -01D 7/1/1987 ND ND ND ND NR ND ND ND ND ND NR ND MW -01D 12/1/1996 ND ND ND ND NR ND ND ND ND ND NR ND MW -01D 12/15/1997 ND ND 26 ND NR ND ND ND ND ND NR ND MW -011) 12/17/1998 ND ND ND ND NR ND ND ND ND ND NR ND MW -01D 12/15/1999 ND ND ND ND NR ND ND ND ND ND NR ND MW -01D 12/132000 ND ND ND ND NR ND ND ND ND ND NR ND MW -01D 12/122001 ND ND ND ND NR ND ND ND ND ND NR ND MW -01D 10/142003 1.0 U. 1.0U IOU 10U 1.0U 2.0U 1.0U 1.0U 1.0 U. 1.0 Ul 2.0 Ul 2.0 MW -03D 7/1/1986 GW -3 ND ND ND ND NR ND ND ND ND ND NR NDr MW -03D 7/1/1987 ND ND ND ND NR ND ND ND ND ND NR ND MW -03D 12/1/1996 ND ND ND ND NR ND ND ND ND 48 NR ND MW -03D 12/12/1997 ND ND 27 ND NR ND ND ND ND 1.1 NR ND t MW -03D 12/17/1998 ND ND ND ND NR ND ND ND ND 1.8 NR ND MW -03D 12/10/1999 ND ND ND ND NR ND ND ND ND 1.8 NR ND MW -03D 12/132000 ND ND ND ND NR ND ND ND ND 2.0 NR ND, WW -03D Dup 12/132000 ND ND ND ND NR ND ND ND ND 2.8 NR ND MW -03D 2202003 2.0 U 2.0 U 10 U 10 U 2.0 U 5.0 Ul 2.0 U 2.0 U 2.0 Ul 70 2.0 U 2.0 U MW -03D 10/142003 1.0U I.0U IOU IOU 1.0U 2.0U 1.0U 1.0U 1.0U 7.0 2.0U 2.0 MW -03D 1272004 5.0 U 5.0 U 50 U 50 U 5.0 U 10 U 5.0 U 5.0 U 5.0 U 87 IOU 2.0 W -03D Du 1272004 5.0 U 5.0 U 50 U 50 U 5.0 U IOU 5.0 U 5.0 U 5.0 U 88 IOU 2.0 MW -03D 4282004 5.0 U 5.0 U 50 U 50 Ul 5.0 U IOU 5.0 Ul 5.0 U 5.0 U 95 5.0 U 5.0 MW -03D 7/152004 1.0 U 1.0 U 10 U 10 U LO U 2.0 U 0.78 J 1.0 U 1.0 U 1.0 LO U , 1.01 MW -03D 10/202004 1.0 U 1.0 U IOU IOU 1.0 U 2.0 U 0.57 J 1.0 U1 1.0 U1 2.4 1.0 U 1.0 MW -03D 11/12005 0.39 Ul 0.38 Ul 1911 1.0 U 0.30 U 0.50 U 2.3 0.50 U 0.21 U 5.9 0.26 U 0.22 U TabW 6 of 50 n L� n F-1 u n u n V n LJ n IJ F} I__) n Li F1 v n u Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) MCP Ground- water Classi- fication a .: A C A N o C Gq e �` e U U MCP UC1. MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100.000 700 50,000 NL NL NL 100.000 400 10,000 Building 7(1/71 continued MW -03,S 7/1/1986 GW -3 150 17 33 NR ND NR ND ND ND NR NR MW -03.S 7/1/1987 468 ND 73 NR ND NR ND ND ND NR NR MW -03S 12/13/2000 460 8.9 16 NR ND NR ND ND ND NR NR MW -03S 3/13/2001 390 11 18 NR ND NR ND ND ND NR NR MW -().?S 1/24/2002 NR NR NR NR NR NR NR NR NR NR NR MW -03S 2/12/2002 NR NR NR NR NR NR NR NR NR NR NR MW -03S 3!1/2002 NR NR NR NR NR 'NR NR NR NR NR NR MW -().?S 10/18/2002 NR NR NR NR NR NR NR NR NR NR NR MW -03S 2/20/2003 24 2.0 U 1.0 U NR 2.0 U NR 10 U 2.0 U 2.0 Ul NR 2.0 U MW -03S 10/142003 260 29 19 10 U IO U 500 U 500 U IOU IOU 20 U 10 U- MW -().?S 1272004 130 16 8.0 5.0 U 5.0 U 260 250 U 5.0 U 5.0 U 10 U 5.0 U MW -03S 4282004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -03S 7/152004 7.9 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -03S 11/12005 25 1.3 0.74 J 0.080 U 0.080 U 6.7 Ul 3.8 U 0.14 U 0.13 Ul 0.22 U 0.15 U MW -03S 5/82006 0.20 U 0.20 * 0.20 U 0.20 U 0.20 U 24 U 1.0 * 0.20 U 0.20111 0.5 Ul 0.20 U MW -04D 7/1/1986 GW -3 ND ND ND NR ND NR ND ND ND NR NR MW -04D 7/1/1987 ND ND ND NR ND NR ND ND ND NR NR MW -04D 12/1/1996 ND ND ND NR ND NR ND ND ND NR NR MW -04D 12/11/1997 ND ND ND NR ND NR ND ND 2 NR NR MW -04D 12/16/1998 ND ND ND NR ND NR ND ND ND NR NR MW -04D 12/9/1999 ND ND ND NR ND NR ND ND ND NR NR MW -04D 12/132000 ND ND ND NR ND NR ND ND ND NR NR MW -040 10/182002 NR NR NR NR NR NR NR NR NR NR NR MW -04D 2202003 2.0 Ul 2.0 Ul 1.0 Ul NR 2.0 U NR 10 U 2.0 U 2.0 U NR 2.0 U MW -04D 1262004 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 5.0 U 1.0 U 2.0 U1.0 U MW -04D 4212005 1.0 U1 1.0 U1 1.OU 1.0 U1 1.0U 50U 50U 1.0U 1.0U 2.0U 1.OU n I Li ..b1M 7 of 50 M Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems .ate 8 of 50 9/142WI Concentration (,) u y MCP `o 71 a o Ground. 5 s U 0 8 ti water Well Claasi- a o 5 Location ID 1 Sample Date I fication F F F F g > M(T UCL 100,000 ,010 100,000 100,000 1110,000 1001000 100,000 1001000 80,000 100,000 50,000 NL 100,000 . MCP GW -2 100 9,000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 50 500 50,000 500)0 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,OOOL- Builiflng 70171 continued MW -03S 7/1/1986 ND ND ND ND NR ND ND ND ND 120 NR ND MWAIS 7/1/1987 ND ND ND ND NR ND ND ND ND 198 NR NDt, MW -03S 12/132000 ND ND ND ND NR ND 16 ND ND 40 NR ND MW -03S 3/132001 ND ND ND ND NR ND 11 ND ND 36 NR NDf MW -03S I242002 NR NR NR NR NR NR NR NR NR NR NR NR, MW -03S 2/122002 GW -3 NR NR NR NR NR NR NR NR NR NR NR NR MW -03S 3/72002 NR NR NR NR NR NR NR NR NR NR NR NR MW -03S 10/182002 NR NR NR NR NR NR NR NR NR NR NR NR MW -03S 2202003 2.0 Ul 2.0 U 10 U IOU 2.0 U 5.0 U 2.0 1 2.0 U 2.0 Ul 3.0 2.0 U 2.0 U MW -035 10/142003 IOU 10 U 100 U 100 U 10 U 20 U 9.0 J 10 U 10 U 28 20 U 20� MW -03S 1272004 5.0 U 5.0 U 50 U 50 U 5.0 U 10 U 6.0 5.0 U 5.0 U 20 IOU 2.0 MW -03S 4282004 5.0 U 5.0 U 50 U 50 U .5.0 U IOU 5.0 U 3.0 J 5.0 U 240 5.0 U 5.0 U MW -03S 7/152004 1.0 U 1.0 U IOU 10 U1 1.0 U 2.0 Ul 3.2 1.0 U 1.0 U 4.9 1.0 U LO MW -03S 11/12005 0.39 U 0.38 U 1.9 U 1.0 U 0.30 U 0.5 U IS 0.50 U 0.21 U 19 0.26 U 0.22 MW -03S 582006 0.20 U 0.20 U 1.5 U 0.50 U 0.20 U 0.2 11 0.68 J 0.20 U 0.20 U 0.20 U 1 0.30 ' 0.20 MW -04D 7/1/1986 GW -3 ND ND ND ND NR ND ND ND ND ND NR ND MW -04D 7/1/1987 ND Nll ND ND NR ND ND ND ND ND NR ND' MW -04D 12/1/1996 ND ND ND ND NR ND ND ND ND ND NR ND MW -04D 12/11/1997 ND ND ND ND NR ND ND ND ND ND NR NDr MW -04D 12/16/1998 ND ND ND ND NR ND ND ND ND ND NR ND L MW -04D 12/9/1999 ND ND ND ND NR ND ND ND ND ND NR ND MW -04D 12/132000 ND ND ND ND NR 5.2 ND ND ND ND NR NDf MW -04D 10/18/2002 NR NR NR NR NR NR NR NR NR NR NR NR MW -04D 2202003 2.0U 2.0U IOU IOU 2.0U 5.0U 2.0U 2.0U 2.0U 2.0 Ul 2.0U 2.0U MW -04D 1262004 I.OU 10 Ul IOU 5.0 Ul 2.0U 1.0U 5.0U 1.0 U1 1.0U 2.0U 0.30f MW -04D 4212005 �_I.OU 1.0 U1 I.0U 10U IOU I.0U 2.0U I.0U 1.0U 1.0U I.0U I.0U 1.0 .ate 8 of 50 9/142WI n n I M u n r-, LI n rl iJ u rn u n r-' Li n u �1 u r--, u Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems Well Location ID Sample Date Concentration ( ) MCP Ground- water Classi- fication d V o E~ v Cy `o y C d � o C N C O a y o .0 '� 4 O d N W e W d O U S O U MCP UCL MCP GW -2 MCP GW -3 1001000 4,000 20,000 100,000 11000 20,000 100,000 80 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 100,000 4110 10,000 Building70/71 continued MW -04S 7/1/1986 GW -3 ND 17 ND NR ND NR ND ND ND NR NR MW -04S 7/1/1987 ND 39 36 NR ND NR ND ND ND NR NR MW -04S 12/1/1996 ND ND ND NR ND NR ND ND ND NR NR MW -04S 3/26/1997 ND ND ND NR ND NR ND ND ND NR NR MW -04S 6/24/1997 ND ND ND NR ND NR ND ND ND NR NR MW -04S 925/1997 ND ND ND NR ND NR ND ND ND NR NR MW -04S 12/11/1997 ND ND ND NR ND NR ND ND 1,300 NR NR MW -04S 324/1998 ND ND ND NR ND NR ND ND ND NR NR MW -04S 629/1998 ND 3.6 ND NR ND NR ND ND ND NR NR MW -04S 925/1998 ND 1.5 ND NR ND NR ND ND ND NR NR MW -04S 12/16/1998 ND ND ND NR ND NR ND ND ND NR NR MW -04S 12/9/1999 ND ND ND NR ND NR ND ND ND NR NR MW -04S 9/142000 ND ND ND NR ND NR ND ND ND NR NR MW -04S 12/132000 ND ND ND NR ND NR ND ND ND NR NR MW -04S 422001 ND ND ND NR ND NR ND ND ND NR NR MW -04S 12/122001 ND 2.8 ND NR ND NR ND ND ND NR NR MW -04S 10/182002 NR NR NR NR NR NR NR NR NR NR NR MW -04S 2202003 2.0 U 2.0 U 1.0 U NR 2.0 U NR 10 U 2.0 U 2.0 U NR 2.0 U MW -04S 10/142003 1.0 U 2.0 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -04S 1262004 1.0 U 3.0 1.0 U 1.0 U 1.0 U 50 U 50 U 5.0 U 1.0 U 2.0 U 1.0 U MW -04S 92/2005 1.0 U 1.8 0.50 1 1.0 U 1.0 U 50 U 50 U1 1.0 U1 1.0 Ul 0.59 JI 1.0 U MW -04S 1202006 0.26 U 0.18 U 0.20 U 0.080 U 0.080 U 6.7 U 3.8 U 1 0.14 U 0.13 U 0.22 U 0.15 U MW -04S .5/82006 0.20 U1 1.5 0.20 U 0.2011 0.20 U 24 U 1.0 * 0.20 U 0.20 U 0.50 U 0.20 U F, Tom. 9 of 50 u �,.aom Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Concentration ( ) d d � MCP C a a B e Ground- a, W U a o o = ° S o C water d Ca Well Classi- -. b $ ILI u Location ID Sample Date rication z z �3 F: H F, E_ MCP UCL 100,000 100,000 100,000 100,000 100,000 100,000 100,000 80,000 100,000 50,000 NL 100,000 . MCP GW -2 100 9,000. 50,000 50,000 50,000 10,000 50 81000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,000' Building70/7! continued MW -04S 7/1/1986 ND ND ND ND NR ND ND ND 39 17 NR ND MW -04S 7/1/1987 ND ND ND ND NR ND ND ND 73 91 NR 440 �- MW-04S 12/1/1996 4.3 ND ND ND NR ND ND ND ND ND NR 6.2 MW -04S 3/26/1997 4.3 ND ND ND NR ND ND ND ND ND NR ND MW -04S 6/24/1997 7.4 ND ND ND NR ND ND ND ND ND NR 5.1 MW -04S 9/25/1997 3.8 ND ND ND NR ND ND ND ND ND NR 3.4 MW -04S 12/11/1997 4.9 ND 35 ND NR ND ND ND ND ND NR 2.31 MW -04S 3/24/1998 15 ND ND ND NR ND ND ND 1.2 ND NR 10 MW -04S 6!29/1998 12 ND ND ND NR ND 2.8 ND ND 6.0 NR 13 MW -04S 9/25/1998 12 ND ND ND NR ND ND ND ND 1.8 NR 9, MW -04S 12/16/1998 12 ND ND ND NR ND ND ND ND ND NR ND MW -04S 12/9/1999 GW -3 4.5 ND ND ND NR ND ND ND ND 1.0 NR 7.3' MW -04S 9/14/2000 1.5 ND ND ND NR ND ND ND ND ND NR ND MW -04S 12/13/2000 1.6 ND ND ND NR ND ND ND ND ND NR ND MW -04S 4/2/2001 1.4 ND ND ND NR ND ND ND ND ND NR 2.5 ` MW -04S 12/12/2001 1.6 ND ND ND NR ND ND ND ND 1.2 NR 1.4 f MW -04S 10/18/2002 NR NR NR NR NR NR NR NR NR NR NR NR MW -04S 2/20/2003 2.0 U 2.0 U IOU IOU 2.0 U 5.0 U 2.0 U 2.0 U 2.0 Ul 2.0 U 2.0 U 2.0 MW -04S 10/14/2003 4.0 1.0 U 10 U IOU 1.0 U 2.0 Ul 1.0 U 1.0 U 1.0 U 1.0 2.0 U 4.0 MW -04S 1/26/2004 6.0 1.0 U IOU 10 U 5.0 U 2.0 U 1.0 U 5.0 U 1.0 U 2.0 2.0 Ul 5.0 MW -04S 9/2/2005 25 1.0 U 10 U IOU 1.0 U 2.0 U 1.0 U 1.0 U 1.3 4.7 1.0 U 19 MW -04S 1/20/2006 6.2 0.38 U 1.9 ul 1.0 U 0.30 U 0.50 U 0.14 U 0.50 U 1 0.21 U 2.3 0.26 U 4.3 MW -04S 5/8/2006 16 1 0.20 Ul 1.5 U 0.50 U 0.20 Ul 0.20 U 0.20 U 1 0.20 U 0.77-il 1.7 0.30 U 9.3 _ J / 1 11 �. 10 of 50 , ,, Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) MCP Ground- water Clad- cation F d t $ 61 = u A C u A q d cr3 Q q 0 A 4 0a Q pq p`q `0 U 0 U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 10111,000 400 10,000 Building 70/71 continued MW -06D 7/1/1986 GW -3 22 130 110 ND ND NR ND ND ND ND NR MW -(MD 7/1/1987 ND 218 135 ND ND NR ND ND ND ND NR MW-IMD 12/24/1996 ND 58 43 ND ND NR ND ND ND ND NR MW -061) 3/26/1997 ND 52 46 ND ND NR ND ND ND ND NR MW -06D 6/24/1997 ND 43 30 ND ND NR ND ND ND ND NR MW -06D 924/1997 ND 47 34 ND ND NR ND ND ND ND NR MW -06D 12/11/1997 ND 41 24 ND ND NR ND ND 130 ND NR MW -06D 324/1998 ND 35 20 ND ND NR ND ND ND ND NR MW -06D 622/1998 ND 34 22 ND ND NR ND ND ND ND NR MW -06D 925/1998 ND 44 31 ND ND NR ND ND ND ND NR MW -06D 12/14/1998 ND 30 21 ND ND NR ND ND ND ND NR MW -06D 12/10/1999 ND 26 16 ND ND NR ND ND ND ND NR MW -06D 3/92000 ND 20 11 ND ND NR ND ND ND ND NR MW -06D 6/132000 ND 15 9.2 ND ND NR ND ND ND ND NR MW -06D 9/182000 ND 10 5.7 ND ND NR ND ND ND ND NR MW -06D 12/112000 ND 16 II ND ND NR ND ND ND ND NR MW -06D 422001 ND 15 15 ND ND NR ND ND ND ND NR MW -06D 12/122001 0.7 12 6.1 ND ND NR ND ND ND ND NR WW -06D- Du 12/122001 ND ND ND ND ND NR ND ND ND ND NR MW -06D 2202003 2.0 U 22 15 NR 2.0 U NR IOU 2.0 U 2.0 U NR 2.0 U MW -06D 7/102003 2.0 U 6.0 2.0 2.0 U 2.0 U NR IOU 2.0 U 2.0 U NR 2.0 U MW -06D 10/142003 1.0 U 6.0 2.0 1.0 U 1.0 U1 50 U 50 U 1.0 U 1.0 U 2 U 1.0 U MW -06D 1272004 1.0 U 10 5.0 1.0 U 1.0 U 50 U 50 U 5.0 U 1.0 U 2 U 1.0 U MW -06D 4/28/2004 1.0 U 1.5 0.73 J 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2 U 1.0 U MW -06D 10/192004 1.0 U 0.63 J 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2 U 1.0 U MW -06D 421/2005 1.0 U 17 0.71 JI LOU- 0.50 J 50 U 50 U 1.0 U 1.0 U 2 U 1.0 U MW -06D 11/12005 0.26 U 33 7.7 0.080 U 1 0.66 JI 6.7 U 3.8 U 0.14 U 0.13 Ul 0.22 U 0.15 U MW -06D 5/82006 1.0 U 27 * 14 1.0 U 1.0 U 120 U 5.0 * ]()111 1.0 Ul 2.5 U 1.0 U Tom„ 11 of 50 9/1uZWI M Table 4 r' Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems T*1W 12 of 50 9/1</XqT i,_ , Concentration ( ) OI O y, v CI da ,1 MCP `o w° t 5 ` Ground- a, o a U v u a o v water L.a Well Classi- I,aation ID Sample Date ficationu z Ca 1-4 F 1- F 01 MCP UCL 100,000 1001000 100,000 100,000 100,000 100,000 80,000 1001000 50,000 NL 100,000" MCP GW -2 E50,0000 9,000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 500 50,000 50,000 50,000 5000 30,000 4,000 50,000 5,000 NL 50,000 ` Building 70/71 continued MW -06D 7/1/1986 GW -3 ND ND ND ND NR ND ND ND 37 210 NR ND MW -06D 7/1/1987 ND ND ND ND NR ND ND ND 120 595 NR ND MW -06D 12/24/1996 52 ND ND ND NR ND ND ND 120 290 NR ND MW -06D 3/26/1997 51 ND ND ND NR ND 1 I ND ND 280 NR ND r MW -06D 6/24/1997 48 ND ND ND NR ND 9.1 ND ND 240 NR ND, _ MW -06D 9/24/1997 46 ND ND ND NR ND 13 ND ND 280 NR ND MW -06D 12/11/1997 40 ND 30 ND NR ND 7.7 ND ND 200 NR ND' MW -IND 3/24/1998 31 ND ND ND NR ND 6.0 ND ND 140 NR ND MW -06D 6/22/1998 33 ND ND ND NR ND 8.1 ND ND 170 NR ND MW -06D 9/25/1998 45 ND ND ND NR ND 9.5 ND ND 210 NR ND' MW -06D 12/14/1998 31 ND ND ND NR ND 6.8 ND ND 160 NR ND MW -06D 12/10/1999 29 ND ND ND NR ND 6.2 ND ND 160 NR ND MW -06D 3/9/2000 24 ND ND ND NR ND 5.1 ND ND 110 NR ND MW -06D 6/13/2000 22 ND ND ND NR ND 3.4 ND ND 88 NR ND MW -06D 9/18/2000 19 ND ND ND NR ND 1.3 ND ND 45 NR ND' MW -06D 12/11/2000 22 ND ND ND NR ND 4.0 ND ND % NR ND MW -06D 4/2/2001 20 ND ND ND NR ND 3.7 ND ND 120 NR ND MW -06D 12/12/2001 24 ND ND ND NR ND 1.5 ND ND 60 NR ND W -06D -Du 12/12/2001 ND ND ND ND NR ND ND ND ND ND NR ND MW -06D 2/20/2003 46 2 U ]0 U IOU 2 U 5 U 3.0 2.0 U 2.0 U 95 2.0 U 2.0 MW -06D 7/10/2003 21 2 U 10 U IOU 2 U 5 U 2.0 2.0 U 2.0 U 15 2.0 U 2.0 L MW -06D 10/14/2003 19 1 U IOU 10 U I U 2 U 2.0 1.0 U 1.0 U 16 2.0 U MW -06D 1/27/2004 27 1 U1 IOU 10 ul 5 U 2 Ul 2.0 5.0 U 1.0 U 30 2.0 U 0.50' MW -06D 4/28/2004 8 1 U IOU 10 U l U 2 U 1.0 U 1.0 U 1.0 U 2.4 1.0 U 1.0 MW -06D 10/19/2004 3 1 U 10 U 10 U l U 2 U 1.0 U 1.0 U 1.0 U 3.6 1.0 U 1.0 U MW -06D 4/21/2005 14 1 U IOU 10 U I U 2.0 U 1.0 U 1.0 U 1.0 U 1.3 1.0 U 10' MW -06D 11/1/2005 83 0 U 2 U 1.0 U 0.30 U 0.50 U 0.14 Ul 0.50 U 2.0 4.2 0.26 U 14 MW -06D 5/8/2006 130 1.0 U 7.5 U 2.5 U 1.0 U1 6.4 J1 IOUI 1.0 U 3.4 J 5.2 1.5 * 5.7 T*1W 12 of 50 9/1</XqT i,_ , M U n Li n LJ F 1-_t F) u n I Lt i u r I li L-1 n Li n L M L+ I� Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID 1 Sample Date Concentration ( ) Ground. water Clasci- 1 fication E` as t as a �J c c u a o e V c o g U o U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 1001000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 100,000 400 10,000 Building 70/71 continued MW -06S 7/1/1986 GW -3 58 ND ND ND ND NR ND ND ND ND NR MW -06S 7/1/1987 39 ND ND ND ND NR ND ND ND ND NR MW -06S 12/24/1996 1.3 ND ND ND ND NR ND ND ND ND NR MW -06S 12/11/1997 1.7 ND ND ND ND NR ND ND 1,300 ND NR MW -06S 12/14/1998 ND ND ND ND ND NR ND ND ND ND NR MW -06S 12/10/1999 ND ND ND ND ND NR ND ND ND ND NR MW -06S 12/11/2000 ND ND ND ND ND NR Na_ ND ND ND NR MW-06Sdu 12/112000 ND ND ND ND ND NR ND ND ND ND NR MW -06S 12/12/2001 0.57 ND ND ND ND NR ND ND ND ND - NR MW -()6S 2/20/2003 2.0 U 2.0 U LO U NR 2.0 Ul NR IOU 2.0 U 2.0 U NR 2.0 U MW -06S 7/102003 2.0 U 2.0 U 1.0 U 2.0 U 2.0 U NR IOU 2.0 U 2.0 U NR 2.0 U MW -06S 10/142003 I.0U I.0U 1.0U 1.0U I.0U 50U 50U I.0U 1.0U 2.0U 1.0U MW -06S 1272004 1.0U 1.0U 1.0 U1 1.0U I.0U 50 Ul 50U 5.0U 10U 2.0U 1.0U MW -06S 10/192004 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -09D 7/1/1987 GW -3 21 24 ND ND ND NR ND ND ND ND NR MW -09D 12/1/1996 3.0 100 44 ND 1.2 NR ND ND ND ND NR MW -09D 326/1997 3.5 110 51 ND 1.0 NR ND ND ND ND NR MW -09D 624/1997 2.8 93 32 ND ND NR ND ND ND ND NR MW -09D 924/1997 2.7 93 33 ND ND NR ND ND ND ND NR MW -09D 12/11/1997 2.9 93 33 ND ND NR ND ND 880 ND NR MW -09D 324/1998 ND 17 4.2 ND ND NR ND ND ND ND NR MW -09D 622/1998 ND 8.2 1.6 ND ND NR ND ND ND ND NR MW -09D 925/1998 ND 36 7.6 ND ND NR ND ND ND ND NR MW -09D 12/16/1998 ND 39 8.2 ND ND NR ND ND ND I ND NR MW -09D 12/10/1999 ND 98 32 ND ND NR ND ND ND ND NR MW -09D 3/92000 ND 88 33 ND I ND NR ND ND ND ND NR MW -09D 6/132000 ND 65 23 ND 1.0 NR ND ND ND ND NR MW -09D 9/14/2000 ND 70 26 ND ND NR ND ND ND ND NR MW -09D 12/132000 ND 26 6.7 ND ND NR ND ND ND ND NR MW -09D 422001 ND 83 43 ND ND NR ND ND ND ND NR MW -09D 12/192001 ND 14 3.0 ND ND NR ND ND ND ND NR MW -09D 2202003 2.0 U 100 57 NR 2.0 U NR 10 U 2.0 Ul 2.0 U NR 2.0 U MW -09D 10/14/2003 IOU 10 U IOU 10 U IOU 500 U 500 U IOU IOU 20 U 10 U MW -09D 1282004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U W -09D A 128/2004 5.0 U 5.0 U 5.0 U 5.0 Ul 5.0 Ul 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -09D 10/192004 1.0 U1.0 U 1.4 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U LO U MW -09D 4212005 5.0 U 5.0 U 4.0 J 5.0 U 5.0 U 250 U 250 U 5.0 U1 5.0 Ul 10 UL_ 5.0 U F-) Ta" 13 of 50 Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems Well Location ID Sample Date Concentration (WA) MCP Ground- water Classi- fication a+ c a o u u W c o r 7 ' d 40 'fl 60ct s v F F a .�. a F` a a e F 9 ` MCP UCL MCP GW -2 MCP GW -3 100,000 100 50,000 100,000 91000 500 100,000 50,000 50,000 100,000 50,000 50,000 100,000 50,000 509000 100,000 10,000 50,000 100,000 50 30,000 80,000 8,000 4,000 100,000 90 50,000 50,000 30 51000 NL NL NL 100,000 2 501000 Buildin 70/71 continued MW -06S 7/1/1986 GW -3 ND ND ND ND NR ND ND ND ND I1 NR ND r MW -()()S 7/1/1987 ND ND ND ND NR ND ND ND ND ND NR ND i MW -06S 12/24/1996 ND ND ND ND NR ND ND ND ND 1.2 NR ND MW -06.S 12/11/1997 ND ND 51 ND NR ND ND ND ND 1.1 NR ND r MW -06S 12/14/1998 ND ND ND ND NR ND ND ND ND ND NR ND , MW -(XIS 12/10/1999 ND ND ND ND NR ND ND ND ND ND NR ND MW -06S 12/11/2000 ND ND ND ND NR ND ND ND ND ND NR ND' MW-06Sdu p 12/118000 ND ND ND ND NR 6.8 ND ND ND 1.1 NR ND MW -06S 12/12/2001 ND ND ND ND NR ND ND ND ND 0.57 NR ND MW -06S 2/20/2003 2.0 U 2.0 U 10 U IOU 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U 2.0 U 4.0 2.0 P' MW -06S 7/10/2003 2.0 U 2.0 U l0 U 10 U 2.0 U 5.0 U 2.0 Ul 2.0 U 2.0 U 2.0 U 3.0 2.0 MW -06S 10/14/2003 1.0 U 1.0 U 10 U IOU 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 1.0 U 2.0 2.0 U MW -06S 1/27P-004 1.0 U 1.0 U IOU 10 U1 5.0 U 2.0 U 0.70 J 5.0 U1 1.0 U 2.0 2.0 J O.32JTJ MW -06S 10/19/2004 I.OU 1.OU IOU 10U 1.0 Ul OU I.0U 1.0U 1.011 1.0 Ul 1.2 1.0 MW -09D 7/1/1987 GW -3 ND ND ND ND NR ND ND ND ND 25 NR ND MW -09D 12/1/1996 78 ND ND ND NR ND ND ND ND 79 NR 2.0 MW -09D 3/26/1997 66 ND ND ND NR ND ND ND ND 68 NR 2.7 MW -09D 6/24/1997 52 ND ND ND NR ND ND ND ND 53 NR L1 MW -09D 9/24/1997 50 ND ND ND NR ND ND ND ND 54 NR 1.8 r MW -09D 12/11/1997 53 ND 24 ND NR ND ND ND ND 57 NR 1.8 t_ MW -09D 384/1998 3.9 ND ND ND NR ND ND ND ND 100 NR ND MW -09D 682/1998 1.7 ND ND ND NR ND ND ND ND 100 NR NDr MW -09D 985/1998 7.6 ND ND ND NR ND ND ND ND 31 NR ND MW -09D 12/16/1998 10 ND ND ND NR ND ND ND ND 18 NR ND MW -09D 12/10/1999 73 ND ND ND NR ND ND ND ND 69 NR 5.9; MW -09D 3/98000 82 ND ND ND NR ND ND ND ND 72 NR 9.3 MW -09D 6/138000 63 ND ND ND NR ND ND ND ND 59 NR 5.1 MW -09D 9/148000 52 ND ND ND NR ND ND ND ND 42 NR 4.5 , MW -09D 12/13/2000 13 ND ND ND NR 5.3 ND ND ND 23 NR ND MW -09D 488001 83 ND ND ND NR ND ND ND ND 74 NR 9.1 MW -09D 12/198001 5.0 ND ND ND NR ND ND ND ND 10 NR ND MW -09D 2808003 170 2.0 U 10 ul IOU 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U 140 2.0 U 9.0 MW -09D 10/148003 25 IOU 100 U 100 U IOU 20 U 10 U1 10 U 10 U 220 20 U 20 b MW -09D 1/288004 9.0 5 U 50 U 50 U 5.0 U 10 U 5.0 U 5.0 U 5.0 U 74 IOU 2.0 U WW -09D Du 1888004 9.0 5 U 50 U 50 U 5.0 U IOU 5.0 U 5.0 U 5.0 Ul 68 10 U 2.0 MW -09D 10/198004 22 1.0 Ul IOU 10 Ul 1.0 Ul 2.0 U 1.0 U 1.0 U 1.0 U 70 1.0 U1 1.0 MW -09D 4818005 55 1 5 U 50 U 50 U 5.0 U 10 U 5.0 U 5.0 U 5.0 U 210 5.0 Ul 5.0 U TO" 14 of 50 9114/, , u f7 u 7 u n u I t u F, U r LJ n I La n t u f Li n LJ F Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems Well Location 1D Sample Date Concentration ( ) MCP Ground- water Classi- (cation d 0 o A `o A N _`o 00 o A vg A ' V° pp 6 Gp` U U MCP UCL MCPGW-2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 100,000 400 10,000 Building 70/71 continued MW -09S 7/1/1987 GW -3 ND ND ND ND ND NR ND ND ND ND NR MW -09S 12/1/1996 ND ND ND ND ND NR ND ND ND ND NR MW -09S 3/26/1997 ND ND ND ND ND NR ND ND ND ND NR MW -0915 6/24/1997 ND ND ND ND ND NR ND ND ND ND NR MW -09S 9/24/1997 ND ND ND ND ND NR ND ND ND ND NR MW -09S 12/11/1997 ND ND ND ND ND NR ND ND 820 ND NR MW -09S 3/24/1998 ND 2.3 ND ND ND NR ND ND ND ND NR MW -09S 6/22/1998 ND 1.0 ND ND ND NR ND ND ND ND NR MW -09S 9/25/1998 ND ND ND ND ND NR ND ND ND ND NR MW -09S 12/16/1998 ND NDND ND ND NR ND ND ND ND NR MW -09S 12/9/1999 ND 1.8 ND ND ND NR ND ND ND ND NR MW -09S 3/9/2000 ND ND ND ND ND NR ND ND ND ND NR MW -09S 6/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -09S 9/14/2000 ND ND ND ND ND NR ND ND : ND ND NR MW -09S 12/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -09S 4/22001 ND ND ND ND ND NR ND ND ND ND NR MW -09S Du 422001 ND ND ND ND ND NR ND ND ND ND NR MW -09S 12/192001 1.1 2.6 ND ND ND NR ND ND ND ND NR MW -09S 2202003 2.0 U 2.0 U 1.0 U NR 2 U NR IOU 2.0 U 2.0 U NR 2.0 U MW -09S 10/142003 1.0 0.60 J 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -09S 1262004 3.0 1.0 1.0 1.0 U 1.0 U 50 U 50 U 5.0 U 1.0 U 2.0 U 1.0 U MW -09S 10/19/2 1.3 1.0 U 0.53 J 1.0 U 1.0 U 50 U 50 U1 1.0 U 1.0 UI 2.0 U 1.0 U MW -09S 11/12005 11 5.3 1 2 U 0.82 Ul 0.83 Ul 67 U 38 U 1.4 U1 1.3 U 2.2 U 1.5 U MW -09S 5/82006 2.8 0.20*1 0.53 J 0.20 U 0.20 U 24 U 1.0' *1 0.20 U 0.20 U 0.50 U 0.20 U .bi.. 15 of 50 , r Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems T� 16 of 50 Concentration ( ) d L D A06 S d g a MCPe a a = s `o Ground- d U u c e o O A g o o C water " w '> > 2 u e ° ° f Well Clacvi- n t $ A u y >. Location 11) Sample Date (cation u E 2 MCP Ut'L 100,000 100,000 100,000 100,000 100,000 100,000 100,000 .80,000 100,000 50,000 NL 100,000 MCP GW -2 100 9,000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL .2 MCP GW -3 50,000 500 1 50,000 50,000 50,000 50,000 30,000 4,000 1 50,000 5,000 NL 50,000 k Building 70171 continued MW -0915 1 7/1/1987 GW -3 ND ND ND ND NR ND ND ND ND 87 NR ND r MW -09S 12/1/1996 ND ND ND ND NR ND ND ND ND ND NR ND . MW -0915 3/26/1997 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 624/1997 ND ND ND ND NR ND ND ND ND ND NR r ND MW -0915 924/1997 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 12/11/1997 ND ND 34 ND NR ND ND ND ND ND NR ND MW -09S 324/1998 ND ND ND ND NR ND ND ND ND 1.9 NR ND MW -09S 622/1998 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 925/1998 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 12/16/1998 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 12/9/1999 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 3/92000 ND ND ND ND NR ND ND ND ND ND NR ND MW -0915 6/132000 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 9/142000 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 12/132000 ND ND ND ND NR 5.1 ND ND ND ND NR ND ` MW -09S 42/2001 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S Dup.422001 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 12/192001 ND ND ND ND NR ND ND ND ND ND NR ND MW -09S 2/202003 2.0U 2.0U IOU 10U 2.0U 5.0U 2.0U 2.0U 2.0U 2.0U 2.0U 2.OU MW -09S 10/142003 I.0U 1.0U IOU 10U LOU 2.0U 1.0U 1.0U 1.0U I.0U 2.0U 2.0r MW -09S 1262004 1.0 U LO U IOU IOU 5.0 U 2.0 Ul 1.0 U 5.0 U 1.0 U 1.0 U 2.0 U 0.30 l MW -09S 10/192004 1.0U I.0U IOU 10U LOU 2.0U 1.0U 1.0U 1.0 U1 1.0U 1.0 U1 I.0U MW -095 I I/12005 43 6.9 Jj 19 Ul 10 Ul 3.0 U 5.0 U 1.4 U 5.0 U 2.1 U 220 2.60 U 2.2 MW -09S 5/82006 0.20 U 0.20 U 1.5 U 0.50 U 0.20 U 0.20 U 0.2011 0.20 U 0.20 U 0.20 U 0.30 * 0.20 T� 16 of 50 r V n Li n U n } u n r u r Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) CP GM d- water Classi- rication d _o - `0 0 0 `o Q oq E pq a U E U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 1001000 1,000 20,000 1001000 80 30,000 20,000 2,000 2,000 1009000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 1001000 700 50,000 NL NL NL 100,000 400 10,000 Buil&ng 70/71 continued MW -10D 7/1/1987 GW -3 ND 21 ND NR ND NR ND ND ND NR NR MW -10D 12/24/1996 ND 2.0 1.5 NR ND NR ND ND ND NR NR MW -10D 3/26/1997 ND 2.1 1.2 NR ND NR ND ND ND NR NR MW -10D 6/24/1997 ND 1.7 ND NR ND NR ND ND ND NR NR MW -101) 9/24/1997 ND ND ND NR ND NR ND ND ND NR NR MW -100 12/11/1997 ND 2.1 ND NR ND NR ND ND 260 NR NR MW -10D 3/24/1998 ND 2.2 ND NR ND NR ND ND ND NR NR MW -10D 9/25/1998 ND 2.4 ND NR ND NR ND ND ND NR NR MW -10D 12/14/1998 ND 2.0 ND NR ND NR ND ND ND NR NR MW -10D 12/9/1999 ND 1.8 1.7 NR ND NR ND ND ND NR NR MW -10D 3/9/2000 ND. ND ND NR ND NR ND ND ND NR NR MW -10D 6/13/2000 ND 1.6 ND NR I ND NR ND ND ND NR NR MW -10D 9/13/2000 ND ND ND NR ND NR ND ND ND NR NR MW -10D 12/12/2000 ND ND ND NR ND NR ND ND ND NR NR MW -IOD 4/2/2001 ND ND ND NR ND NR ND ND ND NR NR MW -10D 2/20/2003 2.0 U 2.0 U 1.0 U NR 2.0 U NR 10 U 2.0 U 2.0-U NR 2.0 U MW -10D 7/10/2003 2.0U 2.0U I.0U 2.0 Ul 2.0U NR IOU 2.0U 2.0U 2.0 Ul 2.0U MW -10D 1/26/2004 5.0 U 5.0 Ul 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -10D 2/24/2005 10 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 Ul 5.0 U 5.0 U 10 U 5.0 U MW -10D 5/8/2006 0.20 U 0.20 * 0.20 U 0.20 U 0.20 U 24 U 1.0 * 0.20 U 0.20 U 0.50 U 0.20 U MW -10S 7/1/1987 GW -3 28 25 ND NR ND NR ND ND ND NR NR MW -10S 12/24/1996 ND 3.2 3.3 NR ND NR ND ND ND NR NR MW -10S 3/26/1997 2.1 2.8 5.4 NR ND NR ND ND ND NR NR MW -/OS 6/24/1997 ND 1.9 2.1 NR ND NR ND ND ND NR NR MW -10S 12/11/1997 ND 1.3 ND NR ND NR ND ND 230 NR NR MW -10S 3/24/1998 1.0 2.1 1.9 NR ND NR ND ND ND NR NR MW -10S 9/25/1998 ND 4.0 4.1 NR ND NR ND ND ND NR NR MW -JOS 12/14/1998 ND 2.7 ND NR ND NR ND ND ND NR NR MW -JOS 4/2/2001 ND ND ND NR ND NR ND ND ND NR NR MW -10S 2/20/2003 2.0 U 2.0 U 1.0 U NR 2.0 U NR 10 U 2.0 Ul 2.0 U NR 2.0 U MW -JOS 7/10/2003 2.0 U 2.0 U 1.0 U 2.0 U 2.0 U NR IOU 2.0 U 2.0 U 2.0 U 2.0 U MW -10S 1/27/2004 1.0 U 1.0 1.0 U 1.0 U 1.0 U 50 U 50 U 5.0 U 1.0 U 2.0 U 1.0 U MW -10S 1 2/24/2005 19 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 50U 2.5 J 1 5.0 U. MW -JOS 1 5/8/2006 0.20 Ul 0.52' * 0.20 Ul 0.20 U 0.20 U 24 U 1.0 * 0.20 U 0.20 U 0.50 U 0.20 U 17 of 50 �, TOW 18 of 50 215 NR 62 NR 100 NR 36 NR 2.6 NR 35 NR 7.7 NR 1.5 NR 1.0 97 3.1 140' 150, 41 1.4 39 _i 140 28 ND 2.0 l 16, 5.0 * 6.9 I MW -10S 7/1/1987 GW -3 r � ND ND ND NR ND ND Table 4 355 MW -10S 12/24/1996 130 ND ND ND NR ND ND ND 2.6 MW -/OS 3/26/1997 88 ND ND ND NR ND ND ND L-_, MW -10S 6/24/1997 82 ND ND ND NR ND . ND ND 1.5 MW -10S 12/11/1997 3.1 ND 28 ND NR ND ND ND ND MW -/OS 3/24/1998 87 ND ND ND Mt ND ND ND 1.6 MW -10S 9/25/1998 210 ND ND ND NR ND ND ND 2.9 MW -10S 12/14/1998 60 ND ND ND NR ND ND ND r - MW -10S 4/2/2001 14 ND ND ND NR ND ND ND ND Historical Groundwater Analytical Results for VOCs 2.0 U MW -10S 7/10/2003 65 2.0 U 10 U IOU 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U MIM -10S 1/27/2004 12 1.0 U IOU IOU 5.0 U 2.0 U 1.0 U 5.0 U 0.60 J MW -10S 2/24/2005 Buildings 30 and 70M Remediation Systems MW -10S 5/8/2006 5.3 0.20 U 1.5 Ul 0.50 U 1 0.20 Ul 0.20 U 0.82 J1 0.20 Ul 0.20 U Concentration ( ) u o y u f MCP .. ° r z a a ~ Ground- c ° aq >= d S g Cq c E water a i a T a u o ,,; o o , u Well Classl- -+ r L. Location 11) Sample Date fication MCP UCL 100,000 100,000 100,000 100,000 1009000 100,000 100,000 80,000 100,000 50,000 NL 100,011o,. MCP GW -2 100 91000 50,000 50,000 509000 10,000 50 81000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 59000 NL 50,000` Building70/71 continued MW -10D 7/1/1987 GW -3 ND ND ND ND NR ND ND ND 274 102 NR 498 MW -101) 12/24/1996 89 ND ND ND NR ND ND ND ND 110 NR 29 MW -IOD 3/26/1997 80 ND ND ND NR ND ND ND ND 95 NR 23 MW -10D 6/24/1997 81 ND ND ND NR ND ND ND ND 97 NR 12 r MW -10D 9/24/1997 92 ND ND ND NR ND ND ND ND 130 NR 19,_, MW -IOD 12/11/1997 95 ND 35 ND NR ND ND ND ND 130 NR 16 MW -10D 3/24/1998 100 ND ND ND NR ND ND ND ND 130 NR 14 r 11 MW -1()D 9/25/1998 120 ND ND ND NR ND ND ND ND 200 NR 16 MW -101) 12/14/1998 100 ND ND ND NR ND ND ND ND 170 NR 16 MW -10D 12/9/1999 150 ND ND ND NR I ND ND ND ND 94 NR 26' MW -10D 3/9/2000 120 ND ND ND NR ND ND ND ND 53 NR 10 MW -10D 6/13/2000 150 ND ND ND NR ND ND ND ND 44 NR 18 , MW -10D 9/13/2000 150 ND ND ND NR ND ND ND ND 42 NR 8.5 r L MW -10D 12/12/2000 340 ND ND ND NR ND ND ND ND 65 NR 16 MW -10D 4/2/2001 240 ND ND ND NR ND ND ND ND 51 NR 22' MW -10D 2/20/2003 76 2.0 U 10 U IOU 2.0 U 5.0 U 2.0 Ul 2.0 U 2.0 U 2.0 U 2.0 MW -IOD 7/10/2003 79 2.0U IOU IOU 2.0U 5.0U 2.0U 2.0U 2.0 Ul 2.0U 2.0U 4.0 MW -100 1/26/2004 120 5.0 U 50 U 50 Ul 5.0 U IOU 5.0 U 5.0 U 5.0 U 2.0 J IOU 6.0 ' MW -10D 2/24/2005 85 5.0 U 50 U 50 U 5.0 U 10 U 7.0 5.0 U 5.0 U 56 5.0 U 4.4 J MW -10D 5/8/2006 30 0.20 Ul 1.5 U 0.50 U 0.20 Ul 0.20 U 0.20 U 0.20 U 0.56 J 1.5 0.30 * 1 0.2 TOW 18 of 50 215 NR 62 NR 100 NR 36 NR 2.6 NR 35 NR 7.7 NR 1.5 NR 1.0 97 3.1 140' 150, 41 1.4 39 _i 140 28 ND 2.0 l 16, 5.0 * 6.9 I MW -10S 7/1/1987 GW -3 ND ND ND ND NR ND ND ND 355 MW -10S 12/24/1996 130 ND ND ND NR ND ND ND 2.6 MW -/OS 3/26/1997 88 ND ND ND NR ND ND ND 2.1 MW -10S 6/24/1997 82 ND ND ND NR ND . ND ND 1.5 MW -10S 12/11/1997 3.1 ND 28 ND NR ND ND ND ND MW -/OS 3/24/1998 87 ND ND ND Mt ND ND ND 1.6 MW -10S 9/25/1998 210 ND ND ND NR ND ND ND 2.9 MW -10S 12/14/1998 60 ND ND ND NR ND ND ND ND MW -10S 4/2/2001 14 ND ND ND NR ND ND ND ND MW -10S 2/20/2003 2.0 U 2.0 Ul IOU IOU 2.0 U 5.0 Ul 2.0 U 2.0 U 2.0 U MW -10S 7/10/2003 65 2.0 U 10 U IOU 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U MIM -10S 1/27/2004 12 1.0 U IOU IOU 5.0 U 2.0 U 1.0 U 5.0 U 0.60 J MW -10S 2/24/2005 3.8 J 5.0 U 50 U 50 U 5.0 U 10 U 9.0 5.0 U 5.0 U MW -10S 5/8/2006 5.3 0.20 U 1.5 Ul 0.50 U 1 0.20 Ul 0.20 U 0.82 J1 0.20 Ul 0.20 U TOW 18 of 50 215 NR 62 NR 100 NR 36 NR 2.6 NR 35 NR 7.7 NR 1.5 NR 1.0 97 3.1 140' 150, 41 1.4 39 _i 140 28 ND 2.0 l 16, 5.0 * 6.9 I Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems n ,,,a Concentration ( ) v � u Q u � c N d _ _ MCP ° Ground-2 waterF`, u cr7 u o o a a o Well Classi- A A Ca A A ° d N C 8 O `0 0 Location ID Sample Date fication MCP UCL 100,000 1001000 100,000 20,000 100,000 NL 100,000 1001000 100,000 NL 1001000 MCP GW -2 4,000 1,000 80 2,000 5 NL 50,000 2,000 700 NL 400 MCP GW -3 20,000 209000 30,000 2,000 20,000 NL 50,000 10,000 50,000 NL 10,000 Building 70/71 continued MW -13D 12/1/1996 (;W-3 ND ND ND ND ND NR ND ND ND ND NR MW -139 326/1997 ND ND ND ND ND NR ND ND ND ND NR MW -13D 6/24/1997 ND ND ND ND ND NR ND ND ND ND NR MW -13D 9/25/1997 ND ND ND ND ND NR ND ND ND ND NR MW -13D 12/15/1997 ND ND ND ND ND NR ND ND 660 ND NR MW -139 3/26/1998 ND ND ND ND ND NR ND ND ND ND NR MW -1.3D 6/30/1998 ND ND ND ND ND NR ND ND ND ND NR MW -13D 9/25/1998 ND ND ND ND ND NR ND ND ND ND NR MW -1.3D 12/17/1998 ND ND ND ND ND NR ND ND ND ND NR MW -139 12/15/1999 ND ND ND ND ND NR ND ND ND ND NR MW -13D 9/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -13D 12/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -1.3D 3/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW -13D 12/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW -13D 2/202003 IOU IOU 5.0 U NR 10 U NR 50 U 10 U IOU NR IOU MW -13D 10/142003 50 U 50 Ul 50 U 50 U 50 U 2,500 U 2,500 U 50 U 50 U 100 U 50 U MW -13D 10202004 IOU 10 U IOU IOU IOU 500 U 500 U 10 U IOU 20 Ul IOU MW -13D 4/212005 20 U 20 U 20 Ul 20 Ul 20 Ul 1,000 U 1,000 U 20 Ul 20 U 40 Ul 20 U MW -13D 1122005 5.2U 3.6U 4.0 Ul 1.6 Ul 1.7 U1 130 Ul 76 Ul 2.9 Ul 2.6U 4.4U 3.0U 19 of 50 y1.Qw Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems ` 20 of 50 w,.reoo7 Concentration ( ) i d 9 d a u MCP' g � 1: v Ground- u A g o ` 0 water Well Clad- Location ID Sample Date fication Z z O F F F F` MCP UCL 100,000 100,000 1001000 100,000 100,000 100,000 100,000 80,000 100,000 50,000 NL 100,000f MCP GW -2 100 9,000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 51000 NL 50,0110' Burldln 70/71 continued MW -13D 12/1/1996 48 ND ND ND NR ND ND ND ND 1,400 NR ND MW -131) 3/26/1997 50 ND ND ND NR ND ND ND ND 1,400 NR ND, MW -13D 6/24/1997 41 ND ND ND NR ND ND ND ND 1.300 NR ND MW -13D 9/25/1997 44 ND ND ND NR ND ND ND ND 1,500 NR ND r MW -13D 12/15/1997 40 ND 26 ND NR ND ND ND ND 1,100 NR ND t - MW -13D 3/26/1998 VW -3 36 ND ND ND NR ND ND ND 1,000 NR ND MW -13D 6/30/1998 43 ND ND ND NR ND ND ND 1,100 NR tND Nll r MW -13D 9/25/1998 9.2 ND ND ND NR ND ND ND 210 NR ND MW -13D 12/17/1998 46.0 ND ND ND NR ND ND ND ND 1.100 NR ND MW -13D 12/15/1999 62 ND ND ND NR ND ND ND ND 930 NR ND MW -13D 9/13/2000 180 ND ND ND NR ND ND ND ND 880 NR ND MW -13D 12/13/2000 90 ND ND ND NR ND ND ND ND 800 NR ND MW -13D 3/12/2001 130 ND ND ND NR ND ND ND 16 930 NR ND MW -13D 12/12/2001 130 ND ND ND NR ND ND ND ND 200 NR ND MW -13D 2/20/2003 140 10 U 50 U 50 U 10 U 20 U IOU IOU 20 1,400 10 U IOU MW -13D 10/14/2003 620 50 U 500 U 500 U 50 U 100 U 50 U 50 U 50 U 50 U 100 U 100 MW -13D 10/20/2004 210 10 U 100 U 100 U 10 U 20 Ul 10 U1 10 U IOU 120 ]0 U 10, MW -13D 4/21/2005 620 20 U 200 U 200 U 20 U 40 U 20 U 20 U 15 J 23 20 U 20 b MW -13D 112/2005 790 7.7 U 38 U 20 U 5.9 U 10 U 2-9111 10 U 24 51 5.1 U 4.5 U 20 of 50 w,.reoo7 F) u I u n u n U n f IJ r U n } U n u Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems r- 21 of 50 U snarzom Concentration ( ) 115 N � r .v g s M(T Lo g g o g a Ground- L 0 L 0 L 0 L 0 Y C G E water FL, u u �_ u L A Well Clacsi- '+ A A A A A 4 N E o 0 Location ID 1 Sample Date 1 Fication « I4 u c a0 o AL U U MCP UCI, 100,1100 100,000 100,000 20,000 100,000 NL 100,000 1001000 100,000 NL 100,000 MCP GW -2 4,000 11000 80 2,000 5 NL 50,000 21000 700 NL 400 MCP GW -3 20,000 20,000 30,000 2,000 20,000 NL 50,000 10,000 50,000 NL 10,()00 Building 70/71 continued MW -13S 12/1/1996 GW -3 ND ND ND ND ND NR ND ND ND ND NR MW-1.?S 3/26/1997 ND ND ND ND ND NR ND ND ND ND NR MW -13S 6/24/1997 ND ND ND ND ND NR ND ND ND ND NR MW -13S 9/25/1997 ND ND ND ND ND NR ND ND ND ND NR MW -13S 12/15/1997 ND ND ND ND ND NR ND ND 90 ND NR MW -13S 3/26/1998 ND ND ND ND ND NR ND ND ND ND NR MW -13S 6/29/1998 ND ND ND ND ND NR ND ND ND ND NR MW -13S 9/25/1998 ND ND ND ND ND NR ND ND ND ND NR MW -13S 12/17/1998 ND ND I ND ND ND NR ND ND ND ND NR MW -/.?S 12/15/1999 ND ND ND ND ND NR ND ND ND ND NR MW -13S 3/9/2000 ND ND ND ND ND NR ND ND ND ND I NR MW -13S 6/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -13S 9/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -13S 12/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -13S 3/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW -13S 12/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW -13S 2/20/2003 IOU IOU 5.0 U NR IOU NR 50 U IOU IOU NR to U MW -13S 10/14/2003 100 U 100 U 100 U 100 U 100 U 5,000 U 5,000 U 100 U 100 U 200 U 100 U MW -13S 4/28/2004 100 U 100 U 100 U 100 U 100 U 5,000 U 5,000 U 100 U 100 U 200 U 10() U MW -13S 10/20/2004 25 U 25 Ul 25 U 25 Ul 25 Ul 1,200 Ul 1,200 Ul 25 Ul 25 Ul 50 U 25 U MW -13S 4/21/2005 50 U 50 U 50 U 50 U 50 U 2,500 U 2,500 U 1 50 U SOU 100 U 50 U MW -13S 11/2/2005 13 U 9.0 U 10 U 4.1 U 1 4.2 U 340 Ul 190 Ul 7.2 Ul 6.5 Ul 11 Ul 7.5 U r- 21 of 50 U snarzom Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems T,bW 22 of 50 9114007 U A Concentration ( ) MCP71 2 Ground- a o o G o `o Water T� r+ N +, W h V O = G! t+ 6 Well Classl- _ ri y is ^ a Du u T Location ID Sample Date tication u E d 14 Y C Y G Y r F F - 1- H C > MCP UCL 100,000 100,000 100,000 100,000 1001000 100,000 100,000 80,000 100,000 50,000 NL 100.100 . MCP GW -2 100 91000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,000 ' Building 70/71 continued MW -13S 12/1/1996 GW -3 74 ND ND ND NR ND ND ND ND 1,100 NR ND MW -13S 3/26/1997 87 ND ND ND NR ND ND ND ND 1,100 NR NI MW -13S 6/24/1997 87 ND ND ND NR ND ND ND ND 1.100 NR ND MW -13S 9/25/1997 86 ND ND ND NR ND ND ND ND 880 NR r ND MW -13S 12/15/1997 77 ND 30 ND NR ND ND ND ND 790 NR ND MW -13S 3/26/1998 82 ND ND ND NR ND ND ND ND 940 NR ND MW43S 6/29/1998 120 ND ND ND NR ND ND ND ND 1,300 NR ND MW -13S 9/25/1998 99 ND ND ND NR ND ND ND ND 790 NR ND MW -13S 12/17/1998 95 ND ND ND NR ND ND ND ND 1.200 NR ND MW -13S 12/15/1999 100 ND ND ND NR ND ND ND ND 1,400 NR ND MW -13S 3/9/2000 88 ND ND ND NR ND ND ND ND 2,000 NR ND MW43S 6/13/2000 70 ND ND ND NR ND ND ND ND 1,000 NR ND MW -13S 9/13/2000 97 ND ND ND NR ND ND ND ND 1,000 NR ND MW -13S 12/13/2000 9.3 ND ND ND NR ND ND ND ND 94 NR ND MW -13S 3/12/2001 91 ND ND ND NR ND ND ND ND 1,400 NR ND ` MW -13S 12/12/2001 120 ND ND ND NR ND ND ND ND 1,400 NR ND MW -13S 2/20/2003 160 10 U 50 U 50 U 10 U 20 U 10 U1 IOU IOU 2,100 10 U 101 MW -13S 10/14/2003 68-1 100 U 1,000 U 1,000 U 100 U 200 U 100 U 100 U 100 Ul 2,000 200 U 2006, MW -13S 4/28/2004 250 100 Ul 1,000 U 1,000 U 100 U 200 U 100 U 100 U 100 U 2,500 100 U 100 U MW -13S 10/202004 110 25 U 250 U 250 U 25 U 50 U 25 U 25 U 25 U 3,000 25 U 25 l MW -13S 4212005 210 -SOUL500 U 500 U 50 U 100 Ul 50 U 50 U 50 U 3,000 50 U 100 19 U 95 U 51 U 15 U 25 Ul 7.0 Ul 25 Ul 11 U 1,700 13 Ul 50 4 11 MW -13S 1122005 T,bW 22 of 50 9114007 U A Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location 11) Sample Date Concentration ( ) Ground -E water Classi- fication v ^+ A O O N C G '�^ oo ° M c� U E `o U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 1001000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 100,000 5 201000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 1001000 400 1(),000 Building70/71 continued MW -14S 12/1/19% GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -14S 3/26/1997 ND ND ND ND ND NR ND ND ND ND NR MW -14S 6/24/1997 ND ND ND ND ND NR ND ND ND ND NR MW -14S 9/25/1997 ND ND ND ND ND NR ND ND ND ND NR MW -14S 12/12/1997 ND ND ND ND ND NR ND ND 1,800 ND NR MW -14S 327/1998 ND ND ND ND ND NR ND ND ND ND NR MW -14S 629/1998 ND ND ND ND ND NR ND ND ND ND NR MW -14S 92.5/1998 ND ND ND ND ND NR ND ND ND ND NR MW -14S 12/17/1998 ND ND ND ND ND NR ND ND ND ND NR MW- 4S 12/8/1999 ND ND ND ND ND NR ND ND ND ND NR MW -14S 3/102000 ND ND ND ND ND NR ND ND ND ND NR MW-14Sdu 3/102000 ND ND ND ND ND NR ND ND ND ND NR MW -14S 4/172000 ND ND ND ND ND NR ND ND ND ND NR MW -14S 6/122000 ND ND ND ND ND NR ND ND ND ND NR MW -14S 9/11/2000 ND ND ND ND ND NR ND ND ND ND NR MW -14S 12/122000 ND ND ND ND ND NR ND ND ND ND - NR MW -14S 3/122001 ND ND ND ND ND NR ND ND ND ND NR MW -14S 12/112001 ND ND ND ND ND NR ND ND ND ND NR MW -14S 722002 ND ND ND ND ND NR ND ND ND ND NR MW -14,5 10/82002 5,000 U 7.500 U 5,000 U 5,000 U 5,000 U NR 50,000 U 5,000 U 20,000 U ND 7,500 U MW -14S 11202002 5,000 U 7,500 U 5,000 U 5,000 U 5,000 U NR 50,000 U 5,000 U 20,000 U ND 7,500 U MW -14S 2202003 1,000 U 1,000 U 500 U NR 1.000 U NR 5,000 U 1,000 U 1,000 U NR 1.000 U MW -14S 8/62003 2,500 U 3,800 U 1 2,500 U NR 2,500 U NR 25,000 U 2,500 U 10,000 U NR 3,800 U MW -14S 10/142003 10.000 U 10,000 U 1 10,000 U 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -14S 1122006 10 U 10 U 10 U IOU-- IOU 500 Ul 500 U IOU IOU 20 U IOU r .,�, 23 of 50 91140M Table 4 ` Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems Concentration (WA) r r• r � r 24 of 50 9/14007 C a d �+ 102 d d a a MCP `o a o a .a a°+ y _ a E e Ground- u e ° r d S u71 q t o water s o 1 Well Classi- s € y u u Location ID Sample Date flcation MCP UCL 100,000 100,000 100,000 1001000 100,000 100,000 100,000 80,000 100,000 50,000 NL 100,000/ MCP GW -2 100 9,000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,000'1' Buildin 70/71 continued MW -14S 12/1/1996 29,000 ND ND ND NR ND ND 2,900 ND 310,000 NR ND ` MW -14S 3/26/1997 29,000 ND ND ND NR ND ND 2,500 ND 310,000 NR ND - MW -14S 6/24/1997 22,000 ND ND ND NR ND ND 2,800 ND 380,000 NR ND MW -14S 9/25/1997 21,000 ND ND ND NR ND ND ND ND 330,000 NR ND' MW-14S 12/12/1997 20,000 ND 63 ND NR ND ND ND ND 340,000 NR ND, MW -14S 3/27/1998 20,000 ND ND ND NR ND ND ND ND 340,000 NR ND MW -14S 6/29/1998 19,000 ND ND ND NR ND ND I ND ND 430,000 NR ND MW -14S 9/25/1998 22,000 ND ND ND NR ND ND 5,000 ND 470,000 NR ND MW -14S 12/17/1998 18,000 ND ND ND NR I ND ND ND ND 1 420,000 NR I i ND MW -14S 12/8/1999 4,900 ND ND ND NR ND ND ND ND 240,000 NR ND f ' MW -14S 3/10/2000 6,500 ND ND ND NR ND ND ND ND 340,000 NR ND NW-l4SJup 3/10/2000 6,500 ND ND ND NR ND ND ND ND 340,000 NR ND MW -14S 4/17/2000 GW -2 11,000 ND ND ND NR ND ND ND ND 580,000 NR ND -. MW -14S 6/12/2000 11,000 ND ND ND NR ND ND ND ND 560,000 NR ND MW -14S 9/11/2000 6,300 ND ND ND NR ND ND ND ND 370,000 NR ND ` MW -14S 12/12/2000 8,800 ND ND ND NR ND ND ND ND 420,000 NR ND MW -14S 3/12/2001 6,600 ND ND ND NR ND ND ND ND 360,000 NR ND MW -14S 12/11/2001 11,000 ND ND ND NR ND ND ND ND 450,000 NR ND ` MW -14S 7/2/2002 14,000 ND ND ND NR ND ND ND ND 230,000 ' NR ND MW -14S 10/8/2002 28,000 5,000 U 50,000 U 50,000 U NR 50,000 U 5,000 U1 9,400 7,500 U 1,000,000 NR 10,000( MW -14S 11/20/2002 159000 5.000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 7,500 U 7,500 U 280,000 NR 10,000 11 MW -14S 2/20/2003 16,000 1,000 U 5,000 U 5,000 U 1,000 U 2,000 U 1,000 U 1,000 U 1,000 U1 180000 1,000 U 1,000 U MW -14S 1 8/6/2003 16,000 2,500 U 25,000 U 25,00 U NR 1 25,000 U 2,500 U 3,800 U 3,800 U 160,000 NR 5,000 MW -14S 10/14/2003 12,000 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 10,000 U 10,000 U 170,000 20,000 U 20,000 MW -14S 11/2/2006 12 20 U 100 U 100 U 10 U 20 UI 10 UI 9.9 J IOU 270 10 U 10 U r• r � r 24 of 50 9/14007 n U n L, n L-1 n t'^1 V n F U n h U n i U r U n u n n i Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems Well Location ID Sample Date Concentration ( ) Ground- water Classi_ tication C .a F f6 � `o a N `o u Ctl _ v o C e m 2 o c`q r g U E o U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 1001000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 1001000 400 10,000 Building 70/71 continued MW -15D 8/7/1998 Gµ'-3 ND ND ND ND ND NR ND ND ND ND NR MW -1.5D 9/25/1998 ND ND ND ND ND NR ND ND ND ND NR MW -15D 12/16/1998 ND ND ND ND ND NR ND ND ND ND NR MW -15D 12/8/1999 ND ND ND ND ND NR ND ND ND ND NR MW -15D 3/8/2000 ND ND ND ND ND NR ND ND ND ND NR MW -159 6/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -15D 9/11/2000 ND ND ND ND ND NR ND ND ND ND NR W-15DDup 9/11/2000 ND ND ND ND ND NR ND ND ND ND NR MW -15D 12/12/2000 ND ND ND ND ND NR ND ND ND ND NR MW -15D 4/2/2001 ND ND ND ND ND NR ND ND ND ND NR MW -15D 12/11/2001 ND ND ND ND ND NR ND ND ND ND NR MW -15D 6/27/2002 ND ND ND ND ND NR ND ND ND ND NR MW -150 2/2012003 100 U 100 U 50 U NR 100 U NR 500 U 100 U 100 U NR 100 U MW -15D 10/14/2003 100 U 100 U1 100 U 100 U 100 U 5,000 U 5,000 U 100 U1 100 U 200 U 100 U MW -15D 4/28/2004 2,000 U 2,000 U 2,000 U 2,000 U 2,000 U 100,000 U 100.000 U 2,000 U 2,000 U 4,000 U 2.000 U MW -15D 10/4/2004 2,000 U 2.000 U 2,000 U 2,000 U 2.000 U 100,000 U 100,000 U 2,000 U 2,000 U 4,000 U 2,000 U MW -15D 10/19/2004 500 U 500 U 500 U 500 U 500 U1 25,000 U 25,000 U 500 U 500 U 1,000 U 1 500 U WW- 15D Dn 10/19/2004 500 U 500 U 500 U 500 U 500 U 25,000 U 25,000 U 500 U 500 U 1.000 U 500 U MW -15D 12/2912004 2.000 U 2,000 U 2,000 U 2,000 U 2,000 U 100,000 U 100,000 U 2.000 U 2,000 U 4,000 U 2,000 U MW -15D 4/6/2005 1,300 1 2,000 U 2,000 U 2,000 U 2,000 U 100,000 U 100,000 U 2,000 U 2,000 U 4,000 U 2,000 U MW -15D 6/30/2005 2,000 U 2,000 U 2,000 U 2,000 U 2,000 U 100,000 U 100,000 U 2,000 U 2,000 U 4,000 U 2,000 U MW -15D 11/2/2005 13 U 9.0 U IOU 4.1 U 4.2 U 340 UI 190 U 7.2 U 6.5 U 11 U1 7.5 U MW -15D 5/8!2006 500 U 500 T. 500 U1 500 U 500 U 60,000 U 1 2,500-- 500 U 500 U 1,300 TU 500 U n ..1�4 25 of 50 U warzaw Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems T.bM 26 of 50 ,,,,,"T Concentration ( ) Y p p y y Y d MCP U u t u `o d Ground- t e o o g c b o water A a W - v A - a a `x L. O O C v Well Clawci- d,10 p, H a a Location ID Sample Date fication L 2 e �? F F F F > MCP UCL 100,000 100,000 100,000 100,000 100,000 100,000 1009000 80,000 1001000 50,000 NL 1009000 M(.'PGW-2 100 9,000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,1X10 BuiOng 70171 continued MW -150 8nl1998 GW -3 61 ND ND ND NR ND ND 14 ND 660 NR ND MW -15D 9/25/1998 66 ND ND ND NR ND ND ND ND 720 NR ND MW -15D 12/16/1998 54 ND ND ND NR ND ND ND ND 610 NR ND MW -150 12/8/1999 200 ND ND ND NR ND ND ND ND 2.900 NR ND MW -15D 3/8/2000 200 ND ND ND NR ND ND 72 ND 3.800 NR ND MW -15D 6/13/2000 260 ND ND ND NR ND ND 110 ND 6,900 NR ND MW -15D 9/11 P- 000 ND ND ND ND NR ND ND ND ND 9,300 NR ND W -I50 Dap.9/11/2000 260 ND ND ND NR ND ND ND ND 7,800 NR ND MW -15D 12/12/2000 450 ND ND ND NR ND ND ND ND 8,700 NR ND MW -150 4/2/2001 1,000 ND ND ND NR ND ND 200 ND 21,000 NR ND MW -1.5D 12/11 /200 1 3,100 ND ND ND NR ND ND ND ND 18,000 NR ND MW -15D 6/27P-002 2,000 ND ND ND NR ND ND ND ND 52,000, NR ND MW -159 2/20/2003 3,600 100 U 500 U 500 U 100 U 200 U 100 U1 100 200 14,000 100 U 100 U MW -15D 10/1412003 2,000 100 U 1,000 U 1,000 U 100 U1 200 U 100 U 100 U1 55 J 930 200 U 200 U MW -15D 4/28/2004 2,000 U 2.000 U 20,000 U 20,000 U 2,000 U 4,000 U 2,000 U 1,400 J 2,000 U 110,000 2,000 U 2,000 U MW -150 10/4/2004 1,300 J 2.000 U 20.000 U 20.000 U 2.000 U 4,000 U 2.000 U 1.200 J 2,000 U 110,000 2.000 U 2,000 U MW -15D 10/19/2004 980 500 U 5,000 U 5,000 U 500 U 1,000 U 500 U 1,500 500 U 130,000 500 U 500 U W -15D Du 10/19/2004 1,000 500 U 5.000 U 5,000 U 500 U 1,000 U 500 U 1,500 500 U 140,000 500 U 500 U MW -15D 12/29/2004 2.000 U 1 2,000 U 20,000 U 1 20,000 U 2,000 U 1 4,000 U 2.000 U 1,500 J 1 2,000 U 140,000 2,000 U 2,000 U MW -15D 4/6/2005 1,200 J 2,000 U 20,000 U 20,000 U 2,000 U 4.000 U 2,000 U 2,000 2,000 U 120,000, 2,000 U 2,000 U MW -15D 6/30/2005 2,000 1,600 J 20,000 U 20,000 U 2,000 U 4,000 U 2,000 U 3,300 2,000 U 110,000 2,000 U 2,000 U MW -15D 11/2/2005 71 19 U 95 U 230 J 15 U 25 U 7.0 U 220 11 U 2,600 13 U 11 U MW -15D 5/8/2006 3.900 500 U 3,800 U 1,300 U 500 U 6,700 500 U1 2,100 J 500 U 110,000 750 -1 500 U T.bM 26 of 50 ,,,,,"T F, L f1 L n LJ f T L n V U p u n u n iU Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) Ground-� water Clami- f[cation g 0 F o u a `0 u d c 0 u L g 0 u v � o A o 3 Q c a; � o S p`q � g o U E o `o U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 1001000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 100,000 400 109000 Building 70/71 continued MW -/5S 8!1/1998 GW -3 ND ND ND NR ND NA ND ND ND NR NR MW -15S 9/25/1998 ND ND ND NR ND NA ND ND ND NR NR MW -15S 12/16/1998 ND ND ND NR ND NA ND ND ND NR NR MW -15.S 12/8/1999 ND ND ND NR ND NA ND ND ND NR NR MW -15S 3/8/2000 ND ND ND NR ND NA ND ND ND NR NR MW -15S 6/13/2000 ND ND ND NR ND NA ND ND ND NR NR MW -15S 9/11/2000 ND ND ND NR ND NA ND ND ND NR NR MW -15S 12/12/2000 ND ND ND NR ND NA ND ND ND NR NR MW -15S 3/12P-001 ND ND ND NR ND NA ND ND ND NR NR MW -15S 12/11/2001 ND ND ND NR ND NA ND ND ND NR NR MW -15S 6/27/2002 ND ND ND NR ND NA ND 7.6 ND NR NR MW -151S 2/20/2003 2.0 U 2.0 U LO U NR 2.0 U NA IOU 2.0 U 2.0 U NR 2.0 U MW -15.S 10/14/2003 IOU 10 U1 IOU 10 U 10 U1 500 U 500 U IOU 10 U 20 U 10 U MW -15S 10/19/2004 1.0U I.0U 1.0U I.OU I.0U 50U 50U 1.0U 1.0U 2.OU 1.0U MW -15S 4/21/2005 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U 10 U 5.0 U MW -15.S Du p 4/21/2005 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U 10 U 5.0 U MW -15S 11/1/2005 1.3 U 0.90 U 1.0 Ul 0.41 U 0.42 U 34 Ul 19 Ul 0.72 Ul 0.65 U 1.1 U 0.75 U MW -20 8/7/1998 GW -2 5,200 5,200 2,600 ND ND NR ND ND ND ND NR MW -20 9/25/1998 101000 6,500 7,800 ND ND NR 5,700 ND ND ND NR MW -20 12/15/1998 14,000 3,800 6.600 ND ND NR 2,600 ND ND ND NR MW -20 12/13/1999 8,200 550 2,200 ND ND NR ND ND ND ND NR MW -20 3/13/2000 10,000 1,300 3,600 ND ND NR ND ND ND ND NR MW -20 6/13/2000 6,700 670 2,300 ND ND NR ND ND ND ND NR MW -20 12/14/2000 580 62 290 ND ND NR ND ND ND ND NR MW -20 2/20/2003 2,600 1,500 6,100 NR 100 U NR 500 U 100 U 100 U ND t00 U MW -20 10/14/2003 2,700 1.400 5,000 1,000 U 1.000 U 50,000 U 50,000 U 1,000 U 1,000 U 2,000 U 1,000 U MW -20 7/15/2004 280 120 530 50 U 50 U 2,500 U 2,500 U 50 U 50 U 100 U 50 U MW -20 10/20/2004 440 180 1,000 58 J 100 U 5,000 U 5,000 U 100 U 100 U 200 U 100 U MW -20 Dip 10/20/2004 450 180 1,000 100 U 100 U 5,000 U 5,000 U 100 U 100 U 200 U 100 U MW -20 -450 71 J 250 8.2 U 8.3 U 670 U 380 U 14 U 13 U 22 U 15 U MW -20 Dup 5/92006 630 120 650 1 10 U IOU 1,200 Ul 50 *1 10 U1 IOU 25 U IOU MW -20 5/92006 600 170 1 720 1 10 Ul 10 Ul 1,200 U 50'* 10 U IOU 25 U 10 U r-) L,. 27 of 50 a,.rzam Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Concentration ( ) J v L C V y W Y pY CO � `o 6 g y z y d MCP = a a U d g u Ground- W t a o `o A o water' '> a a > _ u a Well Classi- a u p .0 u Location Ill Sample Date,-fication S z i i A F H F MCP UCL 100,000 100,000 100,000 100,000 100,000 100,000 100,000 80,000 100,000 50,000 NL 100,000 MCP GW -2 100 9,000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 50,0101 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,000 Building 70171 continued MW -15S 8!111998 ND ND ND ND NR ND ND ND ND 2,500 NR ND MW -15S 9/25/1998 68 ND ND ND NR ND ND ND ND 2,400 NR ND . MW -15S 12/16/1998 ND ND ND ND NR ND ND ND ND 1.900 NR ND MW -15S 12/8/1999 ND ND ND ND NR ND ND ND ND 1.000 NR ND MW -15S 3/8/2000 28 ND ND ND NR ND ND ND ND 1.200 NR ND MW -15S 6/13P-000 18 ND ND ND NR 95 ND ND ND 1,100 NR ND MW -15S 9/11/2000 14 ND ND ND NR ND ND ND ND 650 NR ND ` MW -15S 12/12/2000 17 ND ND ND NR ND ND ND ND 870 NR ND MW -15.S 3/12/2001 GW -3 11 ND ND ND NR ND ND ND ND 1 510 NR71 ND MW -15S 12/11/2001 19 ND ND ND NR ND ND ND ND 870 NR ND-, MW -1.5,5 6/27/2002 11 ND ND ND NR ND ND ND ND 470 NR ND MW -15S 2/20/2003 9.0 2.0 U IOU 10 U 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U 480 2.0 U 2.0 U MW -15S 10/14/2003 8.0 J 10 U 100 U 100 U1 10 U 20 U 10 U 10 U IOU 330 20 U 20 t-, MW -15S 10/19/2004 1.0 1 1.0 U 10 U IOU 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 92 1.0 U 1.01 MW -15.S 4/21/2005 4.2 J 5.0 U 50 U 50 U 5.0 U 10 U 5.0 U 5.0 U 5.0 U 190 5.0 Ul 5.0 tr ' MW -15S Du 4/21/2005 4.3 J 5.0 U 50 U 50 U 5.0 Ul IO U 5.0 U 5.0 U 5.0 U 190 5.0 U 5.0 U MW -ISS 1 III /2005 2.7 J 1 1.9 U 10 U1 5.1 U 1.5 U 2.5 U 0.70 U 2.5 U 1.1 U 180 1.3 U 1.1 1 MW -20 811/1998 ND ND ND ND NR ND ND ND ND 20,000 NR ND MW -20 9/25/1998 270 ND ND ND NR ND ND 610 ND 22,000 NR ND MW -20 12/15/1998 270 ND ND ND NR ND ND 580 ND 24,000 NR ND MW -20 12/13/1999 ND ND ND ND NR ND ND ND ND 15,000 NR ND MW -20 3/13/2000 600 ND ND ND NR ND ND ND ND 18,000 NR ND. MW -20 6/13/2000 270 ND ND ND NR 1,900 ND ND ND 13,000 NR ND MW -20 12/14/2000 43 ND ND ND NR ND ND ND ND 1,200 NR ND MW -20 2/20/2003 GW -2 800 100 U 500 U 500 U 100 U 200 U 100 U 100 U 100 U 22,000 100 U 100 MW -20 10/14/2003 1,000 Ul 1,000 U 10,000 U 10,000 U 1,000 U 2,000 U 1,000 U 1,000 U 1,000 U 16,000 2,000 U 2,000 MW -20 7/15/2004 37 J 50 U 500 U 500 U 50 U 100 U 50 U 50 U 50 U 3,700 50 U 50 U MW -20 10120/2004 110 100 U 1,000 U 1,000 U 100 U 200 U 51 il 100 U 100 U 4,600 100 U IOOf' MW -20 Dup 10/20/2004 96 J 100 U 1,000 U 1,000 U 100 U 200 U 100 U 100 U 100 U 4,900 100 U 100 MW -20 11/2/2005 39 U 38 Ul 190 U 100 U 30 Ul 50 U 14 U 50 U 21 U 2,200 26 U 22 U MW -20 Dup 5/9/2006 37 J1 10 U 75 Ul 25 Ul 10 $�O 10U 10U 10 U 3,200 15 U 10 , MW -20 5/9/2006 36 J 10 U 75 U 25 U IO IOU 10 U1 10 U 3,200 15 U 10 1 .ate 28 of 50 ,„,ter p V n n u f Lj i� E, n V C Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) Ground- water CIILW- !kation g u F; •• y A y MS u A G u A y v A �r- a o A a d C c e pq o o e m` ' g o U o o U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 309000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 1009000 2,000 101000 100,000 700 50,000 NL NL NL 100,000 400 10,000 Building 70/71 continued MW -21 1 12/8/1999 GW -3 ND ND ND NR ND NR ND ND ND NR NR MW -21 3/9!2000 ND ND ND NR ND NR ND ND ND NR NR MW -21 4/14/2000 ND ND ND NR ND NR ND ND ND NR NR MW -21 6/12/2000 ND ND ND NR ND NR ND ND ND NR NR MW -21 9/11/2000 ND ND ND NR ND NR ND ND ND NR NR MW -21 12/12/2000 ND ND ND NR ND NR ND ND ND NR NR MW -21 2/20/2003 2,000 U 2,000 U 1.0 U NR 2,000 U NR 10,000 U 2,000 U 2,000 U NR 2,000 U MW -21 Du10/15/2003 10,000 U 10,000 U 10,000 U 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -21 10/15/2003 10,000 U 10.000 U 10,000 U 10,000 U 10.000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -21 Du 4/28/2004 10,000 U 10,000 U 10,000 U 10,000 U 10,000 U 1 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -21 4/28/2004 10,000 U 10.000 U 10,000 U 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20.000 U 10,000 U MW -21 8/9/2004 10,000 U 10,000 U 10,000 U 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -21 10/4/2004 5,000 U 5,000 U 5,000 U 1 5,000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5,000 U MW -21 12/16/2004 5.000 U 5,000 U 5,000 U 5,000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5,000 U MW -22 12/8/1999 GW -2 ND ND ND NR ND NA ND ND ND NR NR MW -22 3/10/2000 ND ND ND NR ND NA ND ND ND NR NR MW -22 4/17/2000 ND ND ND NR ND NA ND ND ND NR NR MW -22 6/12/2000 ND ND ND NR ND NA ND ND ND NR NR MW -22 9/11/2000 ND ND ND NR ND NA ND ND ND NR NR MW -22 12/12/2000 ND ND ND NR ND NA ND ND ND NR NR MW -22 2/20/2003 1,000 U 1,000 U 500 U NA 1,000 U NA 5,000 U 1,000 U 1,000 U NR 1,000 U MW -22 10/15/2003 10,000 U 10,000 U 10,000 U 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -22 10/4/2004 100 U 100 U1 100 U 100 U 100 U1 5,000 U1 5,000 U 100 U 100 U 200 U 100 U MW -22 11/1!2005 52 U 36 U 40 U 16 U 17 U 1,300 U 760 U 29 U 26 U 44 U 30 U MW -22 5/UM% 100 U 100 U 100 U 100 U 100 U 12,000 U 1 500 * 100 U 100 UI 250 U 100 U r LTaM 29 of 50 �,,�WT Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems ,aW4 30 of 50 9MCM Concentration ( ) 40 L, d Mur R 4-0 Ground- u t water Well Ciami- a a u c v a •u o IU Sample Date ficationLocation : � 2 � i Q u F o F .`t F F MCP UCL 100,000 100,000 100,000 1001000 100,000 100,000 80,000 100,000 50,000 NL 1001000/ MCP GW -2 750010:000000 9,000 50,000 509000 50,000 10,000 50 81000 90 30 NL 2 MCP GW -3 500 50,000 50,000 50,000 509000 30,000 4,000 50,000 5,000 NL 501000 Building 70/71 continued MW -21 12/8/1999 GW -3 ND ND ND ND NR ND ND 12,000 ND 320,000 NR ND MW -21 3/9/2000 ND ND ND ND NR ND ND 109000 ND 340,000 NR ND MW -21 4/14!2000 ND ND ND ND NR ND ND 14,000 ND 540,000 NR ND MW -21 6/122000 ND ND ND ND NR ND ND 18.000 ND 6109000 NR ND r MW -21 9/112000 ND ND ND ND NR ND ND 13,000 ND 510,000 NR ND MW -21 12/122000 ND ND ND ND NR ND ND 17,000 ND 6I0,000 NR ND MW -21 2/202003 2,000 2.000 U 10,000 U 10,000 U 2.000 U 5.000 U 2,000 U 10,000 2,000 U 470,000 2,000 U 2,000 ' MW -21 Dup 10/152003 10,000 U 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 9,200 J 10,000 U 330,000 20,000 U 20.000 MW -21 10/152003 10,000 U 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 9,600 J 10,000 U 350.000. 20,000 U 20,000 U MW -21 Du 4/282004 10,000 U 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 10,000 U 10,000 U 160,000 10,000 U 10.000 f MW -21 4282004 10,000 U 10,000 U 100.000 U 100.000 U 10,000 U 20,000 U 10,000 U 10,000 U 10,000 U 190,000 10.000 U 10,(X)0 ' MW -21 8/92004 10,000 U 10.000 U 100,000 U 100,000 U 109000 U 20,000 U 10,000 U 10,000 U 10,000 U 170,000 10,000 U Y 10,000 U MW -21 10/42004 5,000 U 5,000 U 50,000 U 50,000 U 5,000 U 10.000 U1 5,000 U 4,000 J 5,000 U 200,000 5,000 U 5;000 .1 MW -21 12/16/2004 5.000 U 5,000 U 50,000 U 50,000 U 5,000 U 10,000 U 5,000 U 4,500 J 5,000 U 180;000 5,000 UI 5.(X)) MW -22 12/8/1999 GW -2 ND ND ND ND NR ND ND 4,300 ND 240,000 NR ND MW -22 3/102000 ND ND ND ND NR ND ND 8,100 ND 430,000 NR ND MW -22 4/172000 ND ND ND ND NR ND ND ND ND 310,000 NR ND MW -22 6/122000 ND ND ND ND NR ND ND ND ND 340,000NR ND MW -22 9/112000 3,000 ND ND ND NR ND ND 4,600 ND 280,000 NR r - ND MW -22 12/122000 ND ND ND ND NR ND ND 5,600 ND 310,000 NR ND, MW -22 2202003 1,000 U 1,000 U 5,000 U 5.000 U 1,000 U 2,000 U 1,000 U 2,000 1,000 U . 160,000 1,000 U 1,000 U MW -22 10/152003 10.000 U 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 10,000 U 10,000 U 150,000 20,000 U 20,000 MW -22 10/42004 110 100 U 1.000 U 1,000 U 100 U 200 U 100 U 100 U 100 U 7,500 100 U too. MW -22 11/12005 120 J 77 U 380 U 200 Ul 59 U 100 U 28 U 100 Ul 43 U 6,000 1 51 Ul - 45U MW -22 5/82006 100 U 100 U 750 U 250 U 100 U 100 U 100 U 100 U 100 U 14,000 150 U 100(" ,aW4 30 of 50 9MCM Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location Ill Sample Date Concentration ( ) Ground. waterE Clad- tication a a o u ca y Lo a N Lo c� a q g Lo u a rt o a 4 e s d E e N � E o e o cqL W g U o U MCP UCL MCP GW -2 MCP GW -3 100,000 3,000 20.000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 1(N),000 5 20,000 NL NL NL 100,000 50,000 1 50,000 1001000 2,000 10,000 100,000 700 50,000 NL NL NL 100,000 400 10,000 Building 70/71 continued MW -24 12/13/1999 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -24 3/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -24 4/17/2000 ND ND ND ND ND NR ND ND ND ND NR MW -24 6/14/2000 ND ND ND ND ND NR ND ND ND ND NR. MW -24 9/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -24 12/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -24 3/13/2001 ND ND ND ND ND NR ND ND NDND NR MW -24 12/10/2001 ND ND ND ND ND NR ND ND ND ND NR MW -24 7/1/2002 ND ND ND ND ND NR ND ND ND ND NR MW-24Du 7/1/2002 ND ND ND ND ND NR ND ND ND ND NR MW -24 10/8/2002 2,500 U 3,800 U 2,500 U ND 2,500 U NR 25,000 U 2,500 U 10,000 U ND 3,800 U MW -24 1 (/2012002 5,000 U 7,500 U 5,000 U ND 5,000 U NR 50,000 U 5,000 U 20,000 U ND 7,500 U MW -24 I 2/20!2003 2.000 U 2,000 U1 1,000 U NR 2,000 U NR 10,000 U 2,000 U 1 2,000 U NR 2,00 U MW -24 8/6/2003 2,500 U 3,800 U 2,500 U NR 2,500 U NR 25,(00) U 2,500 U 10,000 U NR 3,800 U MW -24 10/13/2003 41,600 10,000 U 7,400 J 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10.000 U MW -24 3/16/2004 19,000 J 25,000 U 25,000 U 25,000 U 25,000 U 1,200,000 U 1.200,(00 U 25,000 U 25,000 U 50,000 U 25,000 U MW -24 10/19/2004 500 U 500 U 500 U1 500 U1 500 U 25,000 U 25,000 U 500 U 500 U1 1,000 U 500 U MW -27 12/13/1999 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -27 3/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -27 6/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -27 9/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -27 12/14/2000 ND ND ND ND ND NR ND ND ND I ND NR MW -27 3/13/2001 ND ND ND ND ND NR ND ND ND ND NR MW-27Ja 3/13/2001 ND ND ND ND ND NR ND ND ND ND NR MW -27 12/10/2001 ND ND ND ND ND NR ND ND ND ND NR MW -27 7/1/2002 ND ND ND ND ND NR ND ND ND ND NR MW -27 10/8/2002 5,000 U 7,500 U 5,000 U ND 5,00 U NR 50,000 U 5,000 U 20,00 U ND 7,500 U MW -27 I U2012002 5,000 U 7,500 U 5,000 U ND 5,000 U NR 50,000 U 5,000 U 20,000 U ND 7,500 U MW -27 2/20/2003 2,000 U 2,000 U 1,000 U NR 2.00 U NR 10,000 U 2,000 U 2,000 U NR 2,000 U MW -27 8/6/2003 2,500 U 3,800 U 2,500 U NR 2,500 U 25,000 U 25,000 U 2,500 U 10,000 U NR 3,800 U MW -27 1 10/14/2203 10.000 U 1 10,000 U 10,000 U 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 1 10,000 U 20,00 U 10,00 U MW -27 5/3/2005 19 U NA NA NA NA NA NA NA NA NA NA MW -27 1 5/8/2006 1 200 U 200 U 200 U 200 U 200 U 24,00 U 1,000 • 200 U 200 U 500 U 200 U 31 of 50 srur2ool Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70171 Remediation Systems .,,,W 32 of 50 Concentration (.) a, u d y � a a d MCP r a �' U a g u Ground- to `o A g rs ` water Ca > w •l Well Ciasti- ry b 4�.0 Location ID Sample Date fication e Q F F F F MCP UCL 100,000 100,000 100,000 1110,000 100,000 100,000 100,000 80,000 100,000 50,000 NL 100,000 MCP GW -2 l00 9,000 501000 50,000 50,000 10,000 50 81000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,000 AL Building 70/71 continued MW -24 12/13/1999 GW -2 14.000 ND ND ND NR ND ND ND ND 250,000 NR ND MW -24 3/1320()0 22,000 ND ND ND NR ND ND ND ND 3409000 NR MW -24 4/172000 19,000 ND ND ND NR ND ND ND ND 380,000 NR N2 MW -24 6/142(100 19,000 ND ND ND NR ND ND ND ND 430,000 NR - ND MW -24 9/142000 20,000 ND ND ND NR ND ND ND ND 290.000 NR ND MW -24 12/142000 19.000 ND ND ND NR 32,000 ND ND ND 290,000 NR ND MW -24 3/13/2001 17,000 ND ND ND NR ND ND ND ND 250,000 NR ND MW -24 12/10/2001 13,000 ND ND ND NR ND ND ND ND 200,000 NR ND MW -24 7/12002 18.000 ND ND ND NR ND ND ND ND 270,000 "" NR ND MW-24Du 7/12002 18,000 ND ND ND NR ND ND ND ND 270,000 NR ND MW -24 10/82002 19,000 2.500 U 25,000 U 25,000 U NR 25,000 U 2,500 U 3,800 U 3,800 U 360,000 NR 5,000 I MW -24 11202002 19,000 5,000 U 50,000 U 509000 U NR 50,000 U 5,000 U 7.500 U 7,500 U 250,000 - NR 10,000 U MW -24 2202003 19,000 2,000 U 10,000 U 10,000 U 2.000 U 5,000 U 2,000 U 2,000 U 2,000 U 260,000 2,000 U 2,000 U . MW -24 8/62003 17,000 2,500 U 25,000 U 25,000 U NR 25,000 U 29500 U 3,800 U 3,800 U 200,06.. NR 5,000 1 MW -24 10/132003 17,000 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 10,000 U 10,000 U 174,000 20,000 U 20,000 b ' MW -24 3/162004 0,000 U 25.000 U 50,000 U 25,000 U 25,000 U 25,000 U 380,000 50,000 U 70,000 25,000 U 250.000tU--*,5,000 7,500 U MW -24 10/192004 280 1 500 U 5,000 U1 500 U1 1,000 U 500 U 520 500 U1 71,000 500 U 500' MW -27 12/13/1999 GW -2 6,400 ND ND ND NR ND ND ND ND 190,000 , NR ND MW -27 3/132000 8,800 ND ND ND NR ND ND ND ND 260,000 .' NR ND MW -27 6/142000 9,900 ND ND ND NR ND ND ND ND 290,000 NR -I ND MW -27 9/142000 9,100 ND ND ND NR ND ND ND ND 340,000 NR ND MW -27 12/142000 9,500 ND ND ND NR 28,06 ND ND ND 340,000+ NR NDt MW -27 3/132001 8,300 ND ND ND NR ND ND ND ND 250,000 NR ND MW-27du 3/132001 7,800 ND ND ND NR ND ND 2,000 ND 220,000 NR ND MW -27 12/102001 23,000 ND ND ND NR ND ND ND ND 570,000 NR ND MW -27 7/12002 14,000 ND ND ND NR ND ND ND ND 350,000 NR ND MW -27 10/8/2002 16,000 5,000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 7,500 U 7,500 U 270,000 NR 10,000 U MW -27 11202002 22,000 5,000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 7,500 U 7,500 U :''290,06 NR 10,000 MW -27 2202003 21,000 2.000 U 10,000 U 10,000 U 2,000 U 5,000 U 2,000 U 2.06 U 2,000 U 250,000 2,06 U 2,000 MW -27 8/6/2003 22,000 2,500 U1 25,000 U 25,000 U NR 25,000 U 2,500 U 3,800 U 3,86 U 220,000 NR 5,000 t7 MW -27 10/142003 18,000 10,000 U 100,000 U 100,000 U 10,000 U 209000 U 10,000 U 10,06 U 10,000 U 140,000 20,06 U 20,000 U], MW -27 5132005 19 U NA NA NA NA NA 19 U NA 19 U 53 NA NA MW -27 5/8/2006 39,000 200 U 1,500 U 500 U 200 U 200 U 200 U 200 U 200 U 52,06 300 U 200 b .,,,W 32 of 50 Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) Ground- water Classi- ficalion F u A C u A u L1 u d o A 14 ° ue Z c � `o o go g U o U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 501000 100,000 2,000 10,000 100,000 700 509000 NL NL NL 100,000 400 10,(X)() BuiOng 70/71 continued h1W-28 12/14/1999 GW -2 ND ND ND NR ND NR ND ND ND NR NR MW -28 3/14/2000 ND ND ND NR ND NR ND ND ND NR NR MW -28 6/14/2000 ND ND ND NR ND NR ND ND ND NR NR MW -28 12/15!2000 ND ND ND NR ND NR ND ND ND NR NR MW -28 3/14/2001 ND ND ND NR ND NR ND ND ND NR NR MW -28 12/10/2001 ND ND ND NR ND NR ND ND ND NR NR MW -28 6/28/2002 ND ND ND NR ND NR ND ND ND NR NR MW -28 2/20/2003 400 U 400 U 200 U NR 400 U NR 2,000 U 400 U 400 U NR 400 U MW -28 10/142003 200 U 200 U 200 U 200 U 200 U 10,000 U 10,000 U 200 U 200 U 400 U 200 U MW -28 5/27/2004 500 U 500 U1 500 U 500 U 500 U 25,000 U 25,000 U 500 U 500 U1 1,000 U 1 500 U MW -28 12/29/2004 200 U 200 U 200 U 200 U 200 U 10,000 U 10,000 U 200 U 200 U 400 U 200 U MW -28 I l/IP005 1.3 U 0.90 U 1.0 U 0.41 U 0.42 U 34 U 19 U 0.72 U 0.65 U 1.1 U 0.7.5 U MW -29 12/13/1999 GW -2 4,500 680 2,700 NR ND NA ND ND ND NR NR MW -29 3/14/2000 5,800 860 4,200 NR ND NA ND ND ND NR NR MW -29 6/14/2000 2,000 280 660 NR ND NA ND ND ND NR NR MW -29 12/15/2000 260 100 230 NR ND NA ND ND ND NR NR MW -29 12/10/2001 62 1 67 1 120 1 NR ND NA ND ND ND NR NR MW -29 10/13/2003 50 U 31 ! 76 1 50 U 50 U 2,500 U 1 2,500 U 1 50 U 50 U 100 U1 50 U MW -29 5/9/2006 20 U 1 110 1 640 1 20 U 20 U 2,400 U 1 100 20 U 20 U 50 U 20A r L -j TnWe4 33 of 50 9114� Table 4 r Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems ` Te 34 of 50 Concentration () C L a a+Oj C: 6+ O L L L d E MCP `o 71 y o 7.a a u o u Ground- water A a '> ° z Well Chmi- n u v e' Location ID Sample Date fication 4 V 75 MCP UCL 100,000 100,000 100,000 1001000 100,000 100,000 100,000 80,000 100,000 50,000 NL 1011.000 / MCP GW -2 l00 91000 50,000 50,000 50,000 101000 50 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,000 y Building 70/71 continued MW -28 1 12/14/1999 GW -2 ND ND ND ND NR ND ND ND ND 33,000 NR ND MW -28 3/14/2000 ND ND ND ND NR ND ND ND ND 69,000 NR ND MW -28 6/14/2000 2,400 ND ND ND NR ND ND NDND 1.00,000 NR ND MW -28 12/15/2000 ND ND ND ND NR 21,000 ND ND ND 71,000 NR ND MW -28 3/14/2001 ND ND ND ND NR ND ND ND ND 100.000 NR ND MW -28 12/10/2001 2,300 2,200 ND ND NR ND ND ND ND 75,000. NR ND MW -28 6/28/2002 6.000 ND ND ND NR ND ND ND ND 170,000 NR ND ' MW -28 2/20(2003 1,700 400 U 2,000 U 2,000 U 400 U 1,000 U 400 U 400 U 400 U 75,000 400 U 4001 MW -28 10/14/2003 540 200 U 2.000 U 2.000 U 200 U1 400 U 200 U 200 U1 200 U 12,000 400 U 400 U MW -28 5/27/2004 1,700 500 U 5,000 U 5,000 U 500 U 1,000 U 500 U 500 U 500 U1 21,000 500 U 500 i MW -28 12/29/2004 150 1 200 U 2,000 U 2,000 U 200 U 400 U1 200 U 200 U1 200 U1 3,300 200 U 2001 MW -28 11/1/2005 16 1.9 U IOU 5.1 U 1.5 U 2.5 U 0.70 U 2.5 U 1 1.1 U 150 1.3 U 1.1 U MW -29 12/13/1999 GW -2 ND ND ND ND NR ND ND ND ND 13,000 NR ND MW -29 3/14/2000 Il0 ND ND ND NR ND ND 430 ND 16,000 NR ND ` MW -29 6/14/2000 270 ND ND ND NR ND ND ND ND 3,800 NR ND MW -29 12/15/2000 120 ND ND ND NR ND ND ND ND 1,300 NR ND MW -29 12/10/2001 180 ND ND ND NR ND ND ND ND 1,300 NR ND MW -29 10/13/2003 1 68 1 50 U1 500 U1 500 U1 50 U 100 U1 50 U1 50 U 50 U 1,500 100 U 100 U MW -29 5/9!2006 92 JI 20 U1 150 U1 50 U1 20 U1 20 U1 20 U 20 U 20 U1 4,200 30 U 20 E Te 34 of 50 n. r) V n r u f^? 4 u F) U n L -j n I 1. _S f�T i u n L n r u n L, n rJ Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems Well Location 1D I Sample Date Concentration ( ) MCP Ground- water Clacsi- I tication C W o u y � _`o, u A y g `o u A u C o `o u G I y g _ u q � o Q c L -t 14 m 6 o c a`q d � o U 2 o `o U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 11000 20,000 1()1,000 80 30,000 20,000 2,000 2,000 1001000 5 20,000 NL NL NL 100,000 50,000 50,000 1001000 2,000 10,000 100,000 700 50,000 NL NL NL 100,()00 400 10,000 Building 70/71 continued MW -30 12/13/1999 GW -2 ND ND ND ND ND NR ND ND ND ND Nit MW -30 3/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -30 4/178000 ND ND ND ND ND NR ND ND ND ND NR MW -30 6/138000 ND ND ND ND ND NR ND ND ND ND NR MW -30 9/148000 ND ND ND ND ND NR ND ND ND ND NR MW -30 12/15/2000 ND ND ND ND ND NR ND ND ND ND NR MW -30 3/138001 ND ND ND ND ND NR ND ND ND ND NR MW -30 12/108001 35,000 ND 11,000 ND ND NR ND ND ND ND NR MW -30 7/38002 2,200 ND ND ND ND NR ND ND ND ND NR MW ;30 10/88002 5,000 U 7.500 U 5,000 U ND 5,000 U NR 50,000 U 5.000 U 20,000 U ND 7.500 U MW -.30 11808002 3,400 3,800 U 2,500 U ND 2,500 U NR 25,000 U 2,500 U 10.000 U ND 3.800 U MW -30 2808003 5,800 400 U 700 NR 400 U NR 2,000 U 400 U 400 U NR 400 U MW -30 8/68003 5,500 1.900 U 1,200 U NR 1,200 U1 NR 12,000 U 1,200 U 5,000 U NR 1.900 U MW -30 10/148003 4,400 J 5,000 U 5,000 U 5.000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 1 5,000 U MW -30 3/168004 20,000 J 25,000 U 25.000 U 25,000 U 25,000 U 1,200,000 U 1,200,000 U 25,000 U 25,000 U 50.000 U 25,(x)0 U MW -30 5/138004 5,000 U 5.000 U 5,000 U 5.000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5.(xx) U MW -30 7/158004 7,700 3,100 J 4,600 J 5,000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5,000 U MW -30 10/48004 4,000 J 5,000 U 2,500 J 5,000 U 5,000 U 250.000 U 250,000 U 5,000 U 5,000 U 1 10,000 U 5,000 U MW -30 5/38005 91 NA NA �NA NA NA NA NA NA NA NA MW -31 12/13/1999 GW -2 73,000 4,600 8,100 NR ND NA ND ND ND NR NR MW -31 3/138000 58,000 5,800 12,000 NR ND NA ND ND ND NR NR MW -31 4/178000 75,000 4,300 8,500 NR ND NA ND ND ND NR NR MW -3I 6/138000 88,000 5,500 9,600 NR ND NA ND ND ND NR NR MW -31 12/15/2000 220,000 8,300 38,000 NR ND NA ND ND ND NR NR MW -31 12/108001 120,000:. 4,700 46,000 NR ND NA ND ND ND NR NR MW -31 2808003 350;000 2,000 U 12,000 NR 2,000 U NA 10,000 U 2,000 U 2,000 U NR 2,000 U MW -31 10/15/2003 10000' 4,700 J 53,000 5,000 U 5.000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5.000 U MW-31Du 10/15/2003 160,000 4,800 J 52.000 5,000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5.000 U MW - 31 4/68005 150,000 8,100 90,000 2,000 U 2.000 U1 100,000 U1 100,000 U 2,000 U 2,000 U 4,000 U 2,000 U M v Tom, 35 of 50 �,.r.W Table 4 fl �1 1 r� „�, 36 of 50 9,,4,2W7 r � Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Concentration ( ) I+ T MCP o k ; -2 a -L° e Ground- ItW �, 5 o A y e b 1, o water A i a a -� ° u 0 Well ClMi- 5 $ = z u u Location 11) Sample Date fication S > MCP UCL 100,000 100,000 100,000 100,000 100,000 100,000 100,000 80,000 100,000 50,000 NL 100,0001 _ MCP GW -2 100 9,000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,000 Building 70/71 continued MW -30 12/13/1999 4,300 ND NA NA NR ND 4,700 NDgND 150,000 NR ND MW -i(1 3/13/2000 3,600 ND ND ND NR ND 11,000 ND 350,000" NR NDMW-30 4/17/2000 3,700 ND ND ND NR ND 14,000 ND 400000 NR ND MW -30 6/13/2000 ND ND ND ND NR 43,000 12,000 ND 380,000 NR ND MW -30 9/14/2000 5,300 ND ND ND NR ND 7,200 ND ND 250,000, NR ND MW -30 12/15/2000 ND ND ND ND NR 46,000 12,000 ND ND 290,000 NR ND MW -30 3/13/2001 ND ND ND ND NR ND 11,000 ND ND 290,000 NR ND r AMA 12/10/2001 5,000 ND ND ND NR ND ND 4,200 ND 110,000: NR ND MW -30 7/3/2002 2,700 ND ND ND NR ND 720 ND ND 42,000 NR ND MW -30 10/8/2002 GW -2 6,700 5,000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 7,500 U 7,500 U 180,000: NR 10,0(10 MW -30 11/20/2002 8,400 2,500 U 25,000 U 25,000 U NR 25,000 U 2,500 U 3,800 U 3,800 U : 100,000` NR 5,000 ' MW -30 2/20/2003 7,900 400 U 2,000 U 2,000 U 400 U 1.000 U 1,400 2,500 400 U 89,600. 400 U 400 U MW -,?O 8/6/2003 6,200 1 1,200 U 12,000 U 12,000 U NR 12,000 U 1,300 2,700 1,900 U `. 68,000: NR 2,500 t MW -36 10/14/2003 5,700 5,000 U 50,000 U 50,000 U 5,000 U 10,000 U 5,000 U 3,200 J 5,000 U 2.10,000` ' 10,000 U 10,000 MW -30 3/16/2004 72,000 25,000 U 250,000 U 250,000 U 25,000 U 50,000 U 25,000 U 25,000 U 25,000 U ` 390,000, 50,000 U 7,500 LV' MW -30 5/13/2004 5,000 U 5,000 U 50,000 U 50,000 U 5,000 U 10,000 U 5,000 U 5,000 U 5,000 U 100,000, 5,000 U 5,000 U MW -30 7/15/2004 34,000 5,000 U.50,000 U 50,000 U 5,000 U 109000 U 1 5,000 U1 2,700 J 5,000 U 1, 310,000, 5,000 U 5,000 MW -30 1 10/4/2004 8,600 5,000 U 1 50,000 U 1 50,000 U 5,000 U I 10,000 U 5,000 U 5,000 U 1 5,000 U 140,000 5,000 U 5,000 b MW -30 1 5/3/2005 1 16 U NA I NA I NA I NA I NA 1 16 U NA 1 16 U 7.0 NA NA MW -3/ 12/13/1999 13,000 ND ND ND NR ND ND 6,500 ND 100,000 NR ND MW -31 3/13/2000 20,000 ND ND ND NR ND ND 7,400 ND 100,000- NR ND MW -31 4/17/2000 26,000 ND ND ND NR ND ND 7,300 ND ' 110,000 NR NDr MW -31 6/13/2000 34,000 ND ND ND NR 8.400 ND 7,700 ND 110,000 NR ND MW -31 12/15/2000 56,000 ND ND ND NR 23,000 ND 19,000 ND 190,000 NR ND GW -2 MW -31 12/10/2001 14,000 ND ND ND NR ND ND 10,000 ND 97,000' . NR ND; ' MW -31 2/20/2003 8,000 2,000 U 10,000 U 10,000 U 2,000 U 5,000 U 2,000 U 18,000 2,000 U 230,000..' 2,000 U 2,000 MW -31 10/15/2003 5,000 U 5,000 U 50,000 U 50,000 U 5,000 U 10,000 U 5,000 U 21,000 5,000 U 170,000 10,000 U 10,000 U MW-31Du 10/15/2003 5,000 U 5,000 U 1 50,000 U 50,000 U 5,000 U 10,000 U 5,000 U 21,000 5,000 U 170,000 10,000 U 10,000 ' MW -31 4/6/2005 1 2,000 UI 2,000 U 1 20,000 U 1 20,000 U 2,000 Ul 4.000 U 2.000 U 17,000 2.000 U 81.000 1 2.000 U 2.000 fl �1 1 r� „�, 36 of 50 9,,4,2W7 1: n E w u n Li U r lJ r L Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems Well Location ID 1 Sample Date Concentration ( ) Ground -5 water Classi- I fication d 0 F, u s a q ��' d o pa` � U 8 o U MCP UCL MCP GW -2 MCP GW -3 1001000 4,000 20,000 100,000 11000 20,000 100,000 s0 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 100,000 400 10,000 Building 70/71 continued MW -32 12/14/1999 GW -2 18,000 ND 5.100 NR ND NA ND ND ND NR NR MW -32 3/13/2000 14.000 ND ND NR ND NA ND ND ND NR NR MW -32 6/14/2000 19,000 ND ND NR ND NA ND ND ND NR NR MW -32 9/12/2000 17,000 1 ND ND NR ND NA ND ND ND NR NR MW -32 12/14/2000 19.()00 ND ND NR ND NA ND ND ND NR NR MW -32 12/10/2001 22,000 ND 5,900 NR ND NA ND ND ND NR NR MW -32 2/20/2003 12,000 2,000 U 4,000 NR 2,000 U NA 10,000 U 2,000 U 2.000 U NR 2.000 U MW -32 10/15/2003 21.000 10.000 U 8,400 J 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10.000 U MW -.?2 11/1!2005 2.6 U 52 1 26 0.82 U 0.83 U 67 U1 38 U 1.4 U 1.3 U1 2.2 U 1.5 U MW -33 12/13/1999 GW -2 60,000 ND ND ND ND NR ND ND ND ND NR MW -33 3/13/2000 76,000 2,300 5,700 ND ND NR ND ND ND ND NR MW -33 4/17/2000 15,000 ND ND ND ND NR ND ND ND ND NR MW -33 6/14/2000 14,000 3,400 3,800 ND ND NR ND ND ND ND NR MW -33 12/14/2000 30,000 ND 1 4,200 ND ND NR ND ND ND ND NR MW -33 3/13/2001 34,000 ND 5,200 ND ND NR ND ND ND ND NR MW -33 12/10/2001 56.000 11,000 8.600 ND ND NR 600,(100:'(' ND ND ND NR MW-33dir 12/10/2001 23,000 ND ND ND ND NR ND ND ND ND NR MW -33 7/1/2002 220,000 `. ND 15,000 1 ND ND NR ND ND 1 2,700 ND NR MW -33 10/8!2002 4,000 3,800 U 2,500 U ND 2,500 U NR 25,000 U 2,500 U 10,000 U ND 3.800 U MW -33 11/20/2002 26,000 3,800 U 4,700 ND 2,500 U NR 25.000 U 2,500 U 10,000 U ND 3,800 U MW -33 2/20/2003 100,000' 3,000 15,000 NR 2,000 U NR 10,000 U 2,000 U 2,000 U NR 2.000 U MW -33 8/6/2003 91,000 3,800 U 16,000 NR 2.500_U NR 25,000 U 2,500 U 10,000 U NR 3,800 U MW -33 10/14/2003 84,000 10,000 U 15,000 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -33 du r 10/14/2003 93.000 10,000 U 17,000 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U1 10,000 U MW -33 5/3/2005 85,000 NA NA NA I NA NA NA NA NA NA I NA n r� 37 of 50 LJ a,<rmm Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems ,abW 38 of 50 ,„„m Concentration ( ) d � u a y MCP Ground -water Well Clavd- b u u Location ID Sample Date iication MCPUCL 100,000 100,000 1001000 100,000 100,000 100,000 1009000 80,000 100,000 50,000 NL 100,()00/ - MCP GW -2 100 9,000 50,000 50,000 50,000 10,000 50 81000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 50,000 5,000 NL 50,000 Building 70/7/ continued MW -32 12/14/1999 UW -2 28.000 ND ND ND NR ND ND 3,900 ND 360,000 NR ND MW -32 3/13/2000 37,000 ND ND ND NR ND ND ND ND 390,000 NR ND MW -32 6/142000 21,000 ND ND ND NR ND ND ND ND 340000 NR ND MW -32 9/12/2000 22,000 ND ND ND NR ND ND ND ND 310,000 NR ND MW -32 12/14/2000 19,000 ND ND ND NR ND ND ND ND 300.000 NR ND . MW -32 12/10/2001 15,000 ND ND ND NR ND ND ND ND 220,000 NR ND MW -32 2/20/2003 18,000 2,000 U 10,000 U 10,000 U 2.000 U 5,000 U 2,000 U 4,000 2,000 U 250,000 2,000 U 2.0(b {r MW -32 10/15/2003 17,000 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 6,500 J 10.000 U " 340,000. 20,000 U 20,(100 MW -32 I (/112005 5.300 3.8 U 19 U IOU 3.0 Ul 5.0 Ul 1.4 U 5.0 U 110 32,000 2.6 Ul I10 MW -33 12/13/1999 ND ND ND ND NR ND ND ND ND 110,000 NR ND MW -33 3/13!2000 7,200 ND ND ND NR ND ND 4,100 ND 190,000 NR ND MW -33 4/17/2000 7,700 ND ND ND NR ND ND ND ND 170,000 NR ND MW -33 6/14!2000 8,400 ND ND ND NR 6.200 ND 2,400 ND 190,000 NR ND MW -33 12/14/2000 7.800 ND ND ND NR ND ND ND ND 160,000 NR ND MW -33 3/13/2001 7,900 ND ND ND NR ND ND ND ND 160,000 ' NR ND MW -33 12/10/2001 GW -2 85,000 7,800 46,000 150,000 NR ND ND 14,000 ND 380,000 NR ND MW-33du 12/102001 12.000 ND ND ND NR ND ND ND ND 120,000 ' NR ND MW -33 7/1/2002 6,800 ND ND ND NR ND ND 9,500 ND 300,000 NR ND MW -33 10/8/2002 30,000 2,500 U 25,000 U 25.000 Ul NR 25,000 U 2,500 U 3,800 U 3,800 U I80,000 NR 5.0001 MW -33 11/20/2002 28,000 2,500 U 25,000 U 25,000 U NR 25,000 U 2,500 U 3,800 U 3,800 U 200.000" ` NR 5,000 b MW -33 2/20/2003 12,000 2,000 U 10,000 U 10,000 U 2,000 Ul 5.000 U 2,000 U 7,000 2.000 U 300;0005 2.000 U 2,000 U MW -33 8/6/2003 11,000 1 2,500 U 25,000 U 25,000 U NR 25,000 U 2,500 U 7,000 3,800 U 240,000: NR 5,0001 MW -33 10/142003 13,000 10.000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 1 7,800 J1 10,000 U 210,000 ` 20,000 U 20.000 k MW -33 dup 10/142003 14,000 10,000 U 100,000 U 100,000 U 10,000 U 20.000 U 10,000 U 7,800 J 10,000 U I 220,000 20,000 U 20,000 U I M 3 5/3/2005 100 U NA NA NA NA NA 100 U NA 1 100 U 100 Ul NA NA r ,abW 38 of 50 ,„„m E, v n U rl V n L1 r L.! V u n u Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems n ice, 39 of 50 4,,,rM Concentration ( ) Well Location ID Sample Date, MCPc Ground- water Class!- tication s g .0 y s `o y c � o u C d A `o y a s o c o MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 11000 20,000 100,000 80 30,000 20,000 21000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 101000 100,000 700 50,000 NL NL NL 100,000 400 10,000 Building 70/71 continued MW -34 12/8/1999 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW .34 3/9/2000 ND ND ND ND ND NR ND ND ND ND NR MW -34 4/17/2000 ND ND ND ND ND NR ND ND ND ND NR MW -34 6/12/2000 ND ND ND ND ND NR ND ND ND ND NR MW-34duly 6/12/2000 ND ND ND ND ND NR ND ND ND ND NR MW -34 9/11!2000 ND ND ND ND ND NR ND ND ND ND NR MW -34 12/12/2000 ND ND ND ND ND NR ND ND ND ND NR MW -34 3/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW .34 12/11/2001 ND ND ND ND ND NR ND ND ND ND NR MW -34 6!28/2002 ND ND ND ND ND NR ND ND ND ND NR MW -34 10/8/2002 5,000 U 7,500 U 5,000 U ND 5,000 U NR 50,000 U 5,000 U 20,000 U ND 7,500 U MW -34 11202002 5,000 U 7,500 U 5,000 U ND 5,000 U NR 50,000 U 5,000 U 20,000 U ND -7.500 U MW -34 2/20/2003 4,000 U 4,000 U 2,000 U NR 4,000 U NR 20,000 U 4,000 U 4,000 U NR 4,000 U MW -34 8/6/2003 5,000 U 7,500 U 1 5,000 U NR 5,000 U NR 50,000 U 5,000 U 1 20,000 U NR 7,500 U MW -34 10/132003 10.000 U 10.000 U 10,000 U 10.000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -34 428/2004 10.000 U 10.000 U 10,000 U 10.000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 U MW -34 7/152004 2,000 U 2.000 U 2,000 U 2.000 U 2.000 U 100,000 U 100,000 U 2,000 U 2,000 U 4,000 U 2,000 U MW -34 10/192004 500 U 500 U 500 Ul 500 U 500 U 25,000 U 25,000 U 500 U 500 U 1,000 U 500 U MW -34 12/162004 2,500 U 2,500 U 2,500 U 2,500 U 2,500 U 120,000 U 120,000 U 2,500 U 1 2,500 U 5,000 U 2,500 U MW -34 11/12005 52 U 36 U 40 U 16 U 17 U 1,300 U 760 U 29 U 26 U 44 U 30 U MW -34 Dup 5/82006 IOU 10 U 10 U IOU IOU 1,200 U 50 * IOU 10 U 25 U 10 U MW -34 5/82006 IOU 10 U 10 U 10 U 10 Ul 1,200 U 1 50'* IOU IOU 25 U 10 U MW -34D' 6232005 GW -2 20 U NA NA NA NA NA NA NA NA NA NA MW -34D 6/302005 100 U 100 U 100 U 100 U 100 U 5,000 U 5,000 U 100 U 100 U 200 U 100 U MW -34D 11/12005 26 U 18 U 20 U 8 U 8 U 670 U 380 U 14 U 13 U 22 U 15 U MW -34D 3/62006 13 U 9.0 U IOU 4.1 U 4.2 U 340 U 190' * 7.2 U 7 U 11 U 7.5 U MW -34D 5/82006 50 Ul 50 Ul 50 Ul 50 Ul 50 Ul 6,000 Ul 250 *1 50 U 50 Ul 130 U1 50 U n ice, 39 of 50 4,,,rM Table 4 r Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems T,,,a, 40 of 50 ,,,.2w Concentration ( ) �I. MCP 2 7 a a �°�' u 9 Ground- d ° U o J water w Well Classl- y Location ID Sam a Date fication u y M A F o F F C F c > MCP UCL 100,000 100,000 100,000 100'0001001000 100,000 100,000 80,000 100,000 50,000 NL 100,000 f MCP GW -2 100 91000 50,000 50,000 50,000 10,00050 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 1 30,000 4,000 50,000 51000 NL 50,000 Buil&ng 70/71 continued MW -.i4 12/8/1999 GW -2 ND ND ND ND NR ND ND NDND 270,000' NR ND MW -34 3/9/2000 ND ND ND ND NR ND ND ND ND 79,000 NR ND . MW -34 4/17/2000 ND ND ND ND NR ND ND ND ND 49,000 NR ND MW -34 6/12/2000 ND ND ND ND NR ND ND ND ND 45,000 NR ND ' MW-34du 6/12r2000 ND ND ND ND NR ND ND ND ND 57,000 NR ND MW -34 9/1112000 ND ND ND ND NR ND ND ND ND 50000 NR ND MW -34 12/12/2000 ND ND ND ND NR ND ND ND ND 46,000 NR ND MW 34 3/12/2001 ND ND ND ND NR ND ND ND ND 40,000 NR ND MW -34 12/11/2001 ND ND ND ND NR ND ND ND ND 66,000: - NR ND MW -34 6/28/2002 330 ND ND ND NR ND ND ND ND 38,000 NR ND C MW -34 10/812002 5,000 U 5,000 U 50,000 U 50,000 U NR .50,000 U 5,000 U 7,500 U 7,500 U >100,000 NR 10.0001 MW -34 11/20/2002 5,000 U 5,000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 7,500 U 7,500 U 510,000 ' 'NR 10,000 U MW -34 2/20/2003 4.000 U 4,000 U 20,000 U 20,000 U 4,000 U 10,000 U 4,000 U 5,000 4,000 U 460,000 4,000 U 4,000 U MW -34 8/6/2003 5,000 U 5.000 U 50,000 U 50,000 U NR 50,000 Ul 5,000 U 7,500 U 1 7,500 U 350,000NR 10,0001 MW -34 10/13/2003 10,000 U 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10,000 U 10,000 U 10,000 U 310,000 ' 20,000 U 20,00001 MW -34 4/28/2004 10,000 U 10,000 U 100,000 U 100,000 U 10,000 U 20,000 U 10.000 U 10,000 U 10,000 U 130,000, 109000 U 10.000 U MW -34 7/15/2004 2,000 U 2,000 U 20,000 U 20,000 U 2,000 U 4,000 U 2,000 U 1,400 J 2,000 U:. 130,000 2,000 U 2,0001 MW -34 10/19/2004 500 U 500 Ul 5,000 U 5,000 U 500 U 1,000 U 500 U 500 U 500 U 40,000 500 U 500 b• MW -34 12/16/2004 2,500 U 2,500 U 25,000 U 25,000 U 2,500 U 5,000 U 2,500 U 2,500 U 1 2,500 U 10,000 2,500 U 2,500 U MW -34 11/1/2005 140 J 77 U 380 U 200 U 59 U 100 U 28 U 100 U 43 U 14,000 51 U 45 MW -34 Dup 5/8/2006 42 J IOU 75 U 25 U 10 U10 U IOU IOU IOU 2,500 15 U 10 1- MW -34 5/8/2006 47 J IOU 75 U 25 U 10 U 10 U IOU 10 U 10 U 2,400 15 U 10 U f MW -34D" 6/23/2005 GW -2 130 NA NA NA NA NA 20 U NA 20 U 370 NA NA MW -34D 6/30/2005 310 100 U 1,000 U 1,000 U 100 U 200 U 100 U 97 J 100 U 3,700 100 U 10061 MW -34D 11/1/2005 630 38 U 190 U 100 U 30 U 50 U 14 U 11000 21 U 110,000' ` 26 U 22 t MW -34D 3/6/2006 380 19 U 95 U 51 U 15 U 25 U 7.0 U 25 U 11 U 1,700 13 U 11 1 MW -34D 5/8/2006 430 50 Ul 380 U 130 Ul 50 Ul 300 J 50 Ul 50 U 50 Ul 11,000 75 Ul 5061 T,,,a, 40 of 50 ,,,.2w r i U Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID 1 Sample Date Concentration ( ) MCP Ground- water Classi- I tication v m �j o E � g O u C Q. O 0 A a Y N o O u A d C L O u A q ° u N c L. E o u L E 6. MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 1001000 11000 20,000 100,000 80 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 100,000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 100,000 400 10,000 Building 70/71 continued MW -37 12/13/1999 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -37 3/13/2000 ND ND ND ND ND NR ND ND ND ND - NR MW -37 6/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW-37du 6/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -37 9/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -37 12/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -37 3/13/2001 ND ND ND ND ND NR ND ND ND ND NR MW -37 12/10/2001 ND 1,300 820 ND ND NR ND ND ND ND NR MW -37 6/28/2002 ND 600 290 ND ND NR ND ND ND ND NR MW -37 2/20/2003 40 U 960 •550 NR 40 U NR 200 U 40 U 40 U NR 40 U MW -37 10/132003 50 U 579 166 50 U 50 U 2,500 U 2,500 U 50 U1 50 U 100 U 50 U MW -37 5272004 IOU 280 39 10 U 10 U 500 U 500 U 10 U 10 U 20 U IOU MW -37 10/192004 1.0 U 220 30 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 1.2 1 1.0 U MW 37 11/12005 1.3 U 72 7.2 0.41 U 0.42 U 34 U 19 U 0.72 U 0.65 U 1.1 U 1 0.75 U MW -38 12/6/1999 GW -2 7,400 9,400 5,100 NR ND NA ND ND ND NR NR MW -38 3/132000 15,000 13,000 8,000 NR ND NA ND ND ND NR NR MW -38 6/142000 67,000 16,000 17,000 NR ND NA ND ND ND NR NR MW -38 9/142000 18,000 8,100 8,400 NR ND NA ND ND ND NR NR MW -38 12/142000 57,000 12,000 ND NR ND NA ND ND ND NR NR MW -38 Dup 12/142000 54,000 12,000 13,000 NR ND NA ND ND ND NR NR MW -38 3/132001 18,000 6,200 8,700 NR ND NA ND ND ND NR NR MW -38 12/112001 9,900 6,300 5.500 NR ND NA ND ND ND NR NR MW -38 Du 12/112001 9,600 5,700 5,700 NR ND NA ND ND ND NR NR MW -38 2202003 6,700 3.200 3,700 NR 100 UI NA 500 U 100 U 100 U NR 100 U M 3 10/142003 2.800 1,400 1,600 500 U 500 U 25,000 U 25,000 U 500 U 500 U 1,000 U 500 U MW -38 8/92004 1,100 1,400 1,500 500 U 500 U 25,000 U 25,000 Ul 500 Ul 500 U 1,000 U 500 U MW -40 12/8/1999 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -40 3/142000 ND ND ND ND ND NR ND ND ND ND NR MW -40 6/142000 ND ND ND ND ND NR ND ND ND ND NR MW -40 12/14/2000 ND ND ND ND ND NR ND ND ND ND NR MW -40 12/102001 ND ND ND ND ND NR ND ND ND ND NR MW -40 2202003 400 U 400 U 200 U NR 1 400 U NR 1 2,000 U 400 U 400 U NR 400 U MW -40 10/152003 1 500 U 500 U 500 U 500 U 500 U 25,000 U 1 25,000 U 1 500 U 500 .0 LOW U 500 U MW -40 5/82006 40 U 40 * 40 U 40 U 40 U 4.800 U 1 200 x 40 U 40 U 100 U 40 U Table 41 of 50 9114MO? Table 4 r Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) MCP Ground- water Class!- fication Z u :i y d c c g y y w z � d y a b ZI L p V v d 9��' 6C 4 L Q � Ly' g u F d e o F g L `x Z L F �' 7 L F 7 . I W MCP UCL NICP GW -2 MCP GW -3 100,000 100 50,000 100,000 9,000 500 100,000 50,000 50,000 100,000 50,000 50,000 100,000 50,000 50,000 100,000 10,000 50,000 100,000 50 30,000 80,000 8,000 4,000 100,000 90 50,000 50,000 30 5,000 NL NL NL 100,000r , 2 50,000 4 Builft 70/71 continued MW -37 12/13/1999 GW -2 2,100 ND ND ND NR ND ND ND ND 53,000 NR ND MW -37 3/13/2000 15,000 ND ND ND NR ND ND ND ND 53,000 NR ND MW -37 6/14!2000 9,600 ND ND ND NR ND ND ND ND 100,000 NR ND MW-37du 6/14/2000 9,300 ND ND ND NR ND ND ND ND 94;000 NR ND MW -37 9/14/2000 3,300 ND ND ND NR ND ND ND ND 32,000 NR ND , MW -37 12/14/2000 12,000 ND ND ND NR ND ND ND ND 92,AOW NR ND MW -37 3/13/2001 ND ND ND ND NR ND ND ND ND 3,200 NR ND MW -37 12/10/2001 11,000 ND ND ND NR ND ND ND ND 35,000 NR 2,100 MW -37 6/28/2002 2,800 ND ND ND NR ND ND ND ND 7,300 NR 840 MW -37 2/20/2003 3,400 40 U 200 U 200 U 40 U 100 U 40 U 40 U 70 7,600 40 U 480 ' MW -37 10/13/2003 882 50 U 500 U 500 U 50 U 100 U 50 U 50 U 35 J 296 100 U 1,030 MW -37 5/27/2004 470 10 U 100 U 100 U 10 U 20 U 10 U 10 U 19 450 10 U 700 MW -37 10/19/2004 180 1.0 U 10 U 10 U1 1.0 U 2.0 U 1.0 U1 1.0 16 1 140 1.0 U 490,111 MW -37 11/1/2005 85 1.9 U1 10 U1 5.1 U 1.5 U1 2.5 U1 0.70 U 3 U1 6.4 17 1.3 U 140 t MW -38 12/6/1999 GW -2 79,000 ND ND ND NR ND ND 2,500 ND 71,000 NR ND MW -38 3/13/2000 110,000 ND ND ND NR ND ND 4,000 ND 58,000 `' NR ND MW -38 6/14/2000 120,000 ND ND ND NR ND ND 6,800 ND 3,200 NR ND MW -38 9/14/2000 79,000 ND ND ND NR ND ND 3,200 ND 34,000 NR ND MW -38 12/14/2000 110,000' ND ND ND NR ND ND 5,400 ND ND NR ND MW -38 Dup 12/14/2000 110,000 ND ND ND NR 14,000 ND 5,900 1,500 1,300 NR ND MW -38 3/13/2001 94,000 ND ND ND NR ND ND 3,200 ND 58,000:. NR ND MW -38 12/11/2001 38,000 ND ND ND NR ND ND ND ND ND NR ND` MW -38 Dup 12/11/2001 36,000 ND ND ND NR ND ND 1,800 ND ND NR ND MW -38 2/20/2003 18,000 100 U 500 U 500 U 100 U 200 U 100 U 1,100 100 U 100 100 U 100 U MW -38 10/14/2003 8,000 500 U 5,000 U 5,000 U 500 U 1,000 U 500 U 500 U 500 U 500 U 1,000 U 1,00011 MW -38 8/9/2004 6,500 1 500 U 5,000 U 5,000 U 500 U 1,000 U 500 U 500 U 500 U 500 U 500 U 500 MW -40 12/8/1999 2 ND ND ND ND NR ND ND 1,900 ND 74,000 NR ND, MW -40 3/14/2000 ND ND ND ND NR ND ND 4,200 ND 160,000NR ND MW -40 6/14/2000 ND ND ND ND NR ND ND 4,000 ND 140,000:' NR ND MW -40 12/14/2000GW 8,000 ND ND ND NR ND ND 4,300 ND 140,000 NR ND _ MW -40 12/10/2001 8,700 ND ND ND NR ND ND 4,900 ND 220,000 NR ND MW -40 2/20/2003 400 U 400 U 2,000 U 2,000 U 400 U 1,000 U 400 U 400 U 400 U 50,000 400 U 400 tj MW -40 10/15/2003 500 U 500 U 5,000 U 5,000 U 500 U 1,000 U 500 U 500 U 500 U 14,000 1,000 U 1,000 U_ MW -40 5/8/2006 380 40 U 300 U 100 U 40 U 530 40 U 40 U 40 U 7.200 60'* 401 42 of 50 ,,,,rW F" L n L! f ' U 4-3 Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) MCP Gro d- water Classi- fication t W O V F p 7L g O V C t g O .4 y C g O V p R Jj g O5 U N C Y C dj C O O O u t U E O U MCP UCL MCP GW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 1001000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL Ni, NL 10(),(M)O 400 10,(100 Buildin 70171 continued MW -41D' 6/23/2005 GW -2 50 U NA NA NA NA NA NA NA NA NA NA MW -41D 6/30/2005 20 U 20 U 20 U 20 U 20 U 1,000 U 1.000 U 20 U 20 U 40 U 20 U MW -41D 11/2/2005 5.2 U 3.6 U 4.0 U 1.6 U 1.7 U 130 U 76 U 2.9 U 2.6 U 4.4 U 3.0 U MW -41D 5/8/2006 IOU 10 U 10 U 10 U IOU 1.200 U 50'* IOU 10 U 25 U 10 U MW -42 12/17/1999 GW -3 ND ND ND ND ND NR ND ND ND ND NR MW -42 1/5/2000 ND ND ND ND ND NR ND ND ND ND NR MW -42 3/8/2000 ND ND ND ND ND NR ND ND ND ND NR MW -42 4/17/2000 ND ND ND ND ND NR ND ND ND ND NR MW -42 6/12/2000 ND ND ND ND ND I NR ND ND ND ND NR MW -42 9/13/2000 ND ND ND ND ND NR ND ND ND ND NR MW -42 12/11/2000 ND ND ND ND ND NR ND ND ND ND NR MW -42 3/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW-42du 3/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW -42 12/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW -42 7/2/2002 ND ND ND ND ND NR ND ND ND ND NR MW -42 10/8/2002 5,000 U 7,500 U 5,000 U ND 5,000 U NR 50,000 U 5,000 U 20,000 U ND 7,5(1) U MW -42 11/20/2002 5,000 U 7,500 U 5,000 U ND 5,000 U NR 50,000 U 5.000 U 20,000 U ND 7,500 U MW -42 2/20/2003 4,000 U 4,000 U 2,000 U NR 4,000 U NR 20,000 U 4,000 U 4,000 U NR 4.000 U MW -42 8/6/2003 5,000 U 7.500 U 5,000 U NR 5,000 U NR 50.000 U 5,000 U 20,000 U NR 7,500 U MW -42 10/14/2003 20,000 U 20,000 U 20.000 U 20,000 U 20,000 U 1,000.000 U 1,000,000 20,000 U 20,000 U 40,000 U 20,000 U MW -42 dup 10/14/2003 20,000 U 20,000 U 20,000 U 20,000 U 20,000 U 1,000,000 U 1,00D,000% 20,000 U 20.000 U 40,000 U 20,000 U MW -42 I 3/16/2004 20,000 J 25,000 U 25,000 U 25,000 U 25,000 U 1,200,000 U 1,200,000 U 25,000 U 25.000 U 50,000 U 25,000 U MW -42 4/28/2004 10,000 U 10.000 U 10,000 U 10.000 U 10,000 U 500,000 U 500,000 U 10.000 U 10,000 U 20.000 U 10,000 U MW -42 5/13/2004 5,000 U 5,000 U 5,000 U 5,000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5,000 U MW -42 7/15/2004 4,000 J 5.000 U 1 2.600 J 5,000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5,000 U MW -42 Du 7/15/2004 2,600 J 5,000 U 5,000 U 1 5,000 U1 5,000 U 250,000 U 250,000 U 1 5,000 U 5,000 U1 10,000 U 5,000 U MW -42 11 5/3/2005 50 U NA NA NA NA NA NA NA NA NA NA MW -42D' 6/23/2005 GW -3 10,000 U NA I NA NA NA NA NA NA NA NAt__ NA MW -42D 6/30/2005 100 U 100 U 100 U 100 U 100 U 5,000 U 5.000 U 57 1 100 U 200 U 100 U .„� 43 of 50 u ,,,.7 Table 4 11 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems ' Well Location IU I Sample Date Concentration () Muir Ground- water Classi- I Fication a o A c E > S z d yQ ' s v ' C t a 4 9 M a E c o s d A u o a F u o F: h 8 t F a 'S r F l o MCP UCL MCP GW -2 MCP GW -3 100,000 100 50,000 100,000 9,000 500 100,000 50,000 50,000 1011,000 50,000 501000 100,000 50,000 50,000 100,000 10,000 50,000 100,000 50 30,000 80,000 8,000 4,000 1001000 90 50,000 50,000 30 5,000 NL NL NL 100,(1001 . 2 50,000 ` Buirdln 70/71 continued MW -411) ' 6/23/2005 GW -2 2,100 NA NA NA NA NA 50 U NA 37 J 2.200 NA NA MW -41D 6/30/2005 1,200 20 U 200 U 200 U 20 U 40 U 20 U 35 18 J 950 20 U 20 MW -41D I 1 /20005 1,400 7.7 U 38 U 20 U 5.9 U 10 U 2.8 U 20 12 J 640 5.1 U 4.J5U MW-410 5/8/2006 1,600 10 U 75 U 25 U 10 U IOU 10 U1 10 U 10 Ul 700 1 15 U 10, , MW -42 12/17/1999 GW -3 ND ND ND ND NR ND ND ND ND 1 450,000 NR ND MW -42 1/5/2000 ND ND ND ND NR ND ND ND ND 820,000NR ND , MW -42 3/8/2000 ND ND ND ND NR ND ND 19,000 ND 690,000 NR ND MW -42 4/172000 ND ND ND ND NR ND ND ND ND 340,000 NR ND MW -42 6/12/2000 ND I ND ND I ND NR ND ND 1 17,000 ND 950;000 NR ND' MW -42 9/13/2000 ND ND ND ND NR ND ND 15,000 ND 1 610,000, NR ND MW -42 12/11/2000 ND ND ND ND NR ND ND 12,000 ND 530,000 NR ND MW -42 3/12/2001 ND ND ND ND NR ND ND 26,000 ND 1,000,000' NR ND 1 MW-42du 3/12/2001 ND ND ND ND NR ND ND ND ND 330,000 NR ND MW -42 12/12/2001 ND ND ND ND NR ND ND 11.000 ND 540,000 NR ND MW -42 7/2/2002 ND ND ND ND NR ND ND 4,400 ND 250,000 NR ND MW -42 10/8/2002 5,000 U 5,000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 14,000 7,500 U 840.000 NR 10.000' MW -42 11/20/2002 5,000 U 5,000 U 50.000 U 50,000 U NR 50,000 U 5,000 U 14,000 7,500 U 850,OM NR 10.000 b MW -42 2/20!2003 4,000 U 4,000 U 20,000 U 20,000 U 4.000 U 10,000 U 4.000 U 1 12,000 4,000 U 840,000 4,000 U 4,000 U MW -42 8/6/2003 5.000 U 5,000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 10,000 7,500 U 600,000 NR 10.000 MW -42 10/14/2003 20,000 U 20,000 U 200,000 U 200.000 U 20,000 U 40,000 U 20,000 U 11,000 J 20,000 U 550,000 40.000 U 40,000 MW -42 dup 10/142003 20.000 U 20,000 U 200,000 U 200.000 U 20,000 U 40,000 U 20,000 U 10,000 J 20.000 U 520,000' 40,000 U 40.000 U MW -42 3/162004 71.000 25,000 U 250,000 U 250,000 U 25,000 U 50,000 U 25,000 U 25,000 U 25.000 U - 390,000 50,000 U 7.500 MW -42 4282004 10,000 U 10,000 U 100,000 U 100,000 U 10,000 U 20.000 U 10.000 U 10,000 U 10,000 U 140,000 10,000 U 10.000 MW -42 5/132004 5.000 U 5,000 U 50,000 U 50,000 U 5,000 U 10.000 U 5,000 U 5,000 U 5,000 U 100,000 5,000 U 5,000 U MW -42 7/15/2004 19,000 5,000 U 50,000 U 50.000 U 5.000 U 10,000 U 5,000 U 5,000 U 5,000 U 230,000 5.000 U 5.000( MW -42 Du 7/152004 12,000 5.000 U 50.000 U 50,000 U 5,000 U 10,000 U 5,000 U 5,000 U 5,000 U -200,000 5,000 U 5,000' MW -42 1 5/32005 50 U NA NA NA NA NA 50 U1 NA 50 U 50 U NA NA r MW-42DF 6232005 GW.3 10,000 U NA NA NA NA NA 10.000 U NA 10,000 U 440,000 NA NA MW -42D 6/30/2005 100 U 100 U 1,000 U 1,400 100 U 200 U 100 U 3,800 100 U 140 1 100 U 100 U TMM 44 of 50 9/,.a, r. Lj rr k n v Fl i -i n L1 u F -1 U _ LJ U n �1 l r LJ I L! r f Li LS n u n i �L ! ♦r� U' Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location In Sample nate Concentration ( ) Ground- water Classi- 1lcation d y v F, .: y cr1 ..i y s u ..i�r c N C u y s u .�.iYr' x o y c u d u c c E 0 o 0 U 0 o U MCP UCL MCP GW -2 MCP GW -3 10011100 4,000 20,000 100,000 1,000 20,000 100,000 80 30,000 20.000 2,000 2,000 100,000 5 20,000 NL NL NL 1001000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL Nil NL 100,0011 4t1) 10,000 Building 70/71 continued MW -45 I 1/20/2000 GW -3 ND ND ND ND ND NR ND ND ND ND NR MW -45 3/8/2000 ND ND ND ND ND NR ND ND ND ND NR MW -45 4/17/2000 ND ND ND ND ND NR ND ND ND ND NR MW -45 6/12/2000 ND ND ND ND ND NR ND ND ND ND NR MW -45 9/11/2000 ND ND ND ND ND NR ND ND ND ND NR MW -45 12/11/201)0 ND ND ND ND ND NR ND ND ND ND NR MW -45 3/12/2001 ND ND ND ND ND NR ND ND ND ND NR MW -45 12/11!2001 ND ND ND ND ND NR ND ND ND ND NR MW -45 6/28/2002 ND ND ND ND ND NR ND ND ND ND NR MW -45 10/8/2002 2,500 U 3.800 U 2,500 U ND 2,500 U NR 25,000 U 2,500 U 10,000 U ND 3,800 U MW -45 I IPOP-002 5.000 U 7,500 U 5,000 U NR 5,000 U NR 50.000 U 5,000 U 20,000 U ND 7,500 U MW -45 2/20/2003 4,000 U 4,000 U 2,000 U NR 4,000 U NR 20,000 U 4,000 U 4.000 U NR 4.000 U MW -45 8/6/2003 5,000 U 7,500 U 5,000 U 5,000 U 5,000 U 50,000 U 50,000 U 5,000 U 20,000 U NR 7.500 U MW -45 10/1.W003 20.000 U 20,000 U 20,000 U 20,000 U 20,000 U 1,000,000 U 1,000,000 U 20,000 U 20,000 U 1 40,000 U 20,000 U MW -45 10/13/2003 20.000 U 20,000 U 20,000 U 20,000 U 20,000 U 1,000,000 U 1,000,000 U 20,000 U 20,000 U 40,000 U 20,000 U MW -45 4/28/2004 10,000 U 10,000 U 10,000 U 10,000 U 10,000 U 500,000 U 500,000 U 10,000 U 10,000 U 20,000 U 10,000 11 MW -45 7/15/2004 6,700 2,500 J 4,200 1 5,000 U 5,000 U 1 250.000 U 250,000 U 5,000 U 5,000 U 10,000 U 5.000 U MW -45 10/4/2004 3,600 J 5,000 U 5,000 U 5,000 U 5,000 U 250,000 U 250,000 U 5,000 U 5,000 U 10,000 U 5.000 U MW -46D' 6/23/2005 GW -3 IOUI 1.0 U NA I NA NA NA NA NA NA NA NA NA MW -46D 6/30/2005 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 Ul 2.0 Ul 1.0 U MW -47 7/26!2000 ND ND ND ND ND NR ND ND ND ND NR MW -47 9/13r-000 ND ND ND ND ND NR ND ND ND ND NR MW -47 12/15/2000 ND ND ND ND ND NR ND ND ND NR MW-47du 12/15/2000 ND ND ND NR ND ND ND ND ND NREJND MW -47 3/13/2001 GW 3 ND ND ND ND ND NR ND ND ND NR MW -47 12/19/2001 ND ND ND ND ND NR ND. ND ND NR MW -47 2/20!2003 IOU 10 U 5.0 U NR IOU NR 50 U 10 U IOU NR IOU MW -47 10/14/2003 IOU 10 U IOU IOU IOU 500 U 500 U 10 U IOU 20 U IOU MW -47 10/20/2004 1 1.0 U 1.0 U 1.0 U 1.0 U LOU 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -47 11/2/2005 1 0.26 U 0.18 U 0.20 Ul 0.080 U 0.080 U 6.7 Ul 3.8 U 0.14 U 0.13 Ul 0.22 U 0.15 U rt L) „k, 45 of 50 911412M, Table 4 r Historical Groundwater Analytical Results for VOCs Buildings 30 and 70/71 Remediation Systems ` r TabW 46 of 50 W142, Concentration (WA) Well Location ID I Sample Date MCP Ground- water Classi- fication cr3 -: yq 1 t r u 7 a y u d > MCP UCL MCP GW -2 MCP GW -3 100,000 100 50,000 100,000 9,000 500 100,000 50,000 50,000 100,000 50,000 50,000 100,000 50,000 50,000 100,000 10,000 50,000 100,000 50 30,000 80,000 81000 4,OW 100,000 90 50,000 50,000 30 500 NL NL NL 100,000f.. 2 50,000 Building 70/71 continued MW -45 I I/20/2000 GW -3 ND ND ND ND NR ND ND 11,000 ND 1,000,000 NR ND MW -45 3/8/2000 ND ND ND ND NR ND ND ND ND 260,000 NR ND MW -45 4/17/2000 ND ND ND ND NR ND ND ND ND 700,000 NR ND MW -45 6/122000 ND ND ND ND NR ND ND ND ND 520,000 NR ND 1 MW -45 9/11/2000 ND ND ND ND NR ND ND ND ND 820,000 NR ND . MW -45 12/1101000 ND ND ND ND NR 160,000 ND 33,000 ND 2,200,000 NR ND MW -45 3/12/2001 ND ND ND ND NR ND ND ND ND 860,000 NR ND r MW -45 12/11/2001 ND ND ND ND NR ND ND ND ND 1,500,000 NR ND MW -45 6/28/2002 ND ND ND ND NR ND ND 6,300 ND 130.000 NR ND MW -45 10/8!2002 3.200 29500 U 25,000 U 25,000 U NR 25,000 U 2,500 U 7,400 3,800 U >500.000 NR 5,000 U" MW -45 11/202002 5,000 U 5.000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 21,000 7,500 U 1,200,000 NR 10,000 1 MW -45 220/2003 4.000 U 4,000 U 20.000 U 20.000 U 4,000 U 10,000 U 4.000 U 13,000 4,000 U 760,000 4,000 U 4,000 U MW -45 8/6/2003 5,000 U 5,000 U 50,000 U 50,000 U NR 50,000 U 5,000 U 7,500 U 7,500 U 590,000 NR 10,000' MW -45 10/132003 20,000 U 20,000 U 200,000 U 200,000 U 20,000 U 40,000 U 20,000 U 1 20,000 U 20.000 U 350000. 40,000 U 40,000 I MW -45 10/132003 20.00O 20,000 U 200,000 U 200,000 Ul 20,000 U 40,000 U 20,000 U 1 20,000 U 20,000 U 330,000 40,000 U 40,000 MW -45 4/28/2004 .0 10,000 U 10,000 U 100,000 U 100,000 U 10,000 U 20.000 U 10,000 U 10,000 U 10,000 U 130,000 10,000 U 10.000 MW -45 7/152004 30,000 5,000 U 50,000 U 50,000 U 5,000 U 10,000 U 5,000 U 2.500 1 5,000 U 290,000 51000 U 5,000 1 MW -45 10/4/2004 8,300 5,000 U 50,000 U 50,000 U 5,000 U 10,000 U 5,000 U 5,000 U 1 5,000 U 130,000 5,000 U 5,000 b MW -46D" 6232005 1 GW 3H-14 8 NA NA NA NA NA 10,000 U NA 2.0 ! 64 NA NAMW-46D 6/302005 1.0 U 10 U 10 U 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 3.0 1.0 U 1.0 1. MW -47 7/262000 GW -3 110 ND ND ND NR ND ND ND ND 2,400 NR ND r MW -47 9/132000 160 ND ND ND NR ND ND ND ND 5,800 NR ND MW -47 12/15/2000 110 ND ND ND NR ND ND ND ND 3.400 NR ND MW-47du 12/152000 130 ND ND ND NR ND ND ND ND 3,600 NR ND f MW -47 3/132001 150 ND ND ND NR ND ND ND ND 5,000 NR ND MW -47 12/19/2001 200 ND ND ND NR ND ND ND ND 6,200 NR ND MW -47 220/2003 120 IOU 50 U 50 U IOU 20 U IOU 10 U 10 U 2,200 10 U 10 r` MW -47 10/142003 12 IOU 100 U 100 U IOU 20 U IOU IOU IOU 320 20 U 20 t MW -47 10/202004 I.0U I.0U IOU IOU 1.0U 2.0U 1.o U1 1.0 U. I.OU 0.60 J 1.0 U. 1.0 U" MW -47 T 11/22005 0.39 Ul 0.38 Ul 1.9 Ul 1.0 U 0.30 U 0.50 U 0.14 U 0.50 Ul 0.21 Ul 0.19 Ul 0.26 U 0.22 V TabW 46 of 50 W142, r' L, n L, u L� n I L 1 r 1 LA C Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location 11) Sample Date Concentration ( ) MCP Ground- water Classi-.• rication t � F g _ A C 0 q ~ N o 0 u A ��, g 0 A o � o A Yom^ ° a+ Z c N e m E o c E o 00 s g o U E o o `o U MCP UCL MCP CW -2 MCP GW -3 100,000 4,000 20,000 100,000 1,000 20,000 100,1100 80 30,(X)0 20,010 2,000 2,000 100,1100 5 20,000 NL NL NL 1001OW 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 100,010 400 10,000 Budding 70/71 continued MW -48 7/26/2010 GW -2 ND ND ND ND ND NR ND ND ND ND NR MW -48 12/14/21x0 ND ND ND ND ND NR ND ND ND ND NR MW -48 3/13/2001 ND ND ND ND ND NR ND ND ND ND NR MW -48 12/10/2001 ND ND ND ND ND NR ND ND ND ND NR MW -48 7/3/2002 ND ND ND ND ND NR ND ND ND ND NR MW -48 10/8/2002 2,500 U 3,800 U 2,500 U ND 2.500 U NR 25,000 U 2.500 U 10.000 U ND 3.800 U MW -48 11/20/2(102 2,500 U 3,800 U 2,500 U ND 2,500 U NR 25,000 U 2,500 U 10.000 U ND 3.800 U MW -48 2/20/2003 2.100 2,000 2,400 NR 400 U NR 2,000 U 400 U 400 U NR 4()0 U MW -48 8/6/2003 2,300 3,100 3.200 NR 500 U NR 5.000 U 500 U 2.000 U NR 750 U MW -48 10/14/2003 15,000 5.000 U 2,700 J1 5,000 U 5,000 U 1 250,000 U 250,000 U 5,000 U 10,000 U 10,000 U 5,000 U MW -48 4/29/2004 2,400 4.000 1,400 500 U .500 U 25.000 U 25,000 U 500 U 500 U 1.000 U 500 U MW -48 7/15/2004 50 U 470 110 50 U 50 U 2.500 U 2,500 U 50 U 50 U 100 U 50 U MW -48 4/21/2005 100 U 150 100 U 100 U 100 U 5,000 U 5,000 U 100 U 100 U 200 U 100 U MW -48 11/1/2005 1.3 Ul 87 4.2 J 0.41 U 0.42 U 34 U 19 U 0.72 U 0.65 Ul 1.1 U 0.8 U MW -52S 2/20/2003 GW -2 2.0 U 2.0 U 1.0 U NR 2.0 U NR 10 U 2.0 U 2.0 U 2.0 U 2.0 U MW -52S 10/13/2003 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U 10 U 5.0 U MW -52S dup 10/13/2003 5.0 U 5.0 U 2.6 J 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -52S 1/28/2004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -52S 4/29/2004 5.0 U 5.0 Ul 6.6 5.0 U 5.0 Ul 250 U 250 U 5.0 U1 5.0 U IOU 5.0 U MW -52S 7/15/2004 5.0 U 5.0 U 6.0 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -52S Du L 7/15/2004 5.0 U 5.0 U 5.5 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -52S 10/19/2004 1.4 2.8 3.7 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -52S 11/2/2005 3.7 J 0.90 U 1.0 U 0.41 U 0.42 U 34 Ul 19 U 0.72 U 0.65 Ul 1.1 U 0.75 U MW -52S -Du 11/2/2005 5.2 U 3.6 Ul 10 J 1.6 Ul 1.7 Ul 130 U 76 Ul 2.9 U 2.6 U 4.4 Ul 3.0 U MW -52S 5/9/2006 4.0 U 4OUT 15 J 4.0 U 4.0 U 480 U 20 * 4.0 U 4.0 U 10 U 4.0 U MW -52D 2/20/2003 GW -2 2.0 U 2.0 U 1.0 U NR 2.0 U NA IOU 2.0 U 2.0 U NR 2.0 U MW -52D 10/13/2003 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -52D 1/28/2004 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -52D 4/29/2004 1.0 U 1.0 U 0.82 J 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -52D 7/15/2004 1.2 1.0 U 3.2 1.0 U 1.0 U 50 U 50 Ul 1.0 U 1.0 Ul 2.0 U 1.0 U MW -52D 4/21/2005 0.56 J 1.0 U 1.4 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -52D 11/2/2005 0.26 U 0.18 U 0.20 U 0.080 U 0.080 U 6.7 U 3.8 U 0.14 U 0.13 U 0.22 Ul 0.15 U 47 of 50 9114x. p] 9114x. p] Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems TMM 48 of 50 Concentration (.) e u o s a a � E MCP U °' w o v Ground- v_ s o a e 8 o A g o `o l water Q i, T >. C d C G Well Clmi- W location ID Sample Date fication u E i i i G? F '3 � H F` S MCP UCL 100,000 100,000 100,000 100,000 100,000 100,000 100.000 80,000 100,000 50,000 NL 1000110 MCP GW -2 loo 91000 50,000 50,000 50,000 10,000 50 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,()M 4,000 50,000 5,000 NL 50,000 Building 70/71 continued MW -48 7/26/2000 GW -2 42,000 ND ND ND NR ND ND ND ND 1 160.000 NR ND MW -48 12/14/2000 37,000 ND ND ND NR ND ND ND ND 150,000 NR ND , MW -48 3/13/2001 36,000 ND ND ND NR ND ND ND ND 150,000 NR ND MW -48 12/10/2001 64,000 ND ND ND NR ND ND ND ND 160,000 NR ND MW -48 7/3/2002 29,000 ND ND ND NR ND ND ND ND 160.000 NR ND, MW -48 10/8/2002 32,000 2,500 U 25,000 U 25,000 U NR 25,000 U 2,500 U 3,800 U 3,800 U 170,000 NR , 5,000 U MW -48 11/20/2002 37,000 2,500 U 25,000 U 25.000 U NR 25,000 U 2,500 U 3,800 U 3,800 U 150,000 NR 5,000 MW -48 2/20/2003 41,000 400 U 2.000 U 2,000 U 400 U 1,000 U 400 U 700 400 U 87,000 400 U 400 MW -48 8/6/2003 36,000 500 U 5,000 U 5,000 U NR 5,000 U 500 Ul 1,000 750 U 6.800 NR 1.800 MW -48 10/14/2003 18,000 5.000 U 50,000 U 50,000 U 5,000 U 10,000 U 5,000 U 5,000 U 5,000 U 160,000 10,000 U 10,0()0 r MW -48 1/29/2004 18.000 500 U 5,000 U 5,000 U 500 U 1,000 U 500 U 500 J 500 U 4,700 500 U 290 MW -48 7/15/2004 2,000 50 U 500 U 500 U 50 U 100 U 50 U 50 U 50 U 320 50 U 990 MW -48 4/21/2005 1.800 100 U 1,000 U 1.000 U 100 U 200 U too U 100 U 100 U 4,400 100 U 360, MW -48 11/1/2005 230 1.9 U 9.5 U 5.1 U 1.5 Ul 2.5 U 0.70 U 2.6 J 7.0 96 1.3 U 190 MW -52S 2/20/2003 GW -2 2.0 U 2.0 U IOU IOU 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U 57 2.0 U 2.O U MW -52S 10/13/2003 5.0 U 5.0 U 50 U 50 U 5.0 U 10 U 5.0 U 5.0 U 5.0 U 109 10 U 10 MW -52S du p 10/13/2003 5.0 U 5.0 U 50 U 50 U 5.0 U 10 U 5.0 U 5.0 U 5.0 U 112 IOU 10 N MW -52S 1/28/2004 5.0 U 5.0 U 50 U 50 U 5.0 U 10 U 5.0 U 5.0 U 5.0 U 70 10 U 2.0 U MW -52S 4/29/2004 5.0 U 5.0 U1 50 U 50 Ul 5.0 U IOU 5.0 Ul 5.0 U 5.0 U 250 5.0 U 5.0 MW -52S 7/15/2004 5.0 U 5.0 U 50 U 50 U 5.0 U IOU 5.0 U 5.0 U 5.0 U 250 5.0 U 5.0. MW -52S Du 7/15/2004 5.0 U 5.0 U 50 U 50 U 5.0 U IOU 5.0 U 5.0 U 5.0 U 220 5.0 U 5.0 U MW -52S 10/19/2004 3.8 1.0 U IOU 10 U 1.0 U 2.0 U 0.50 J 1.0 U 0.56 J 190 1.0 U 5.0, ' MW -52S 11/2/2005 4.7 J 1.9 U 10 U1 5.1 U 1.5 Ul 2.5 U 0.70 U 2.5 Ul 1.1 U 600 1.3 W-52 D,,pl 11/2/2005 7.7 U 7.7 U 38 U 20 U 5.9 U 10 U 2.8 U 10 U 4.3 U 560 5.1 U 4.5 U MW -52S 5/9/2006 4.0 U 4.0 U 30 U 10 U 4.0 U 4.0 U 4.0 U 4.0 U 4.0 U 430 6.0 U 4.01 MW -52D 2/20/2003 GW -2 2.0U 2.0U IOU to 2.0U 5.0U 2.0U 2.0U 2.0U 9.0 2.0U 2.0U MW -52D 10/13/2003 LO U 1.0 U IOU IOU 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 5.0 2.0 U 2.0,,' MW -52D 1/28/2004 1.0 U 1.0 U IOU 10 U 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 6.0 2.0 U 0.30 MW -52D 4/29/2004 0.8 J 1.0 U IOU IOU 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 15 1.0 U I.O,U MW -52D 7/15/2004 1.3 10 U 10 U 10 Ul 1.0 Ul 2.0 Ul 1.0 Ul 1.0 Ul 1.0 Ul 54 1.0 UI.0 1.0 U I.0 U IOU 10 U 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 35 1.0 U (LI 1.0 MW -52D 4/21/2005 MW -52D 11/2/2005 0.39 U 0.38 U 1.9 U 1.0 U 0.30 U 0.50 U 0.14 U 0.50 U 1 0.21 U 1.9 1 0.26 U 0.22 �� TMM 48 of 50 n r -r i L-4 n u r I V-4 4 r -i Lt Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Well Location ID Sample Date Concentration ( ) MCP Ground- water Clami- fication e ++ `o g `0 g 0 a N 0 `o d m e`o m a a U o U MCP UCL MCP GW -2 MCP GW -3 1001000 4,000 20,000 100,000 ,1,000 20,000 100,000 80 .10,000 20,000 2,000 2,000 100,000 5 20,000 NL NL NL 1001000 50,000 50,000 100,000 2,000 10,000 100,000 700 50,000 NL NL NL 1001000 400 10,000 Building 70/71 continued MW -55 212012On3 GW -2 2.0 U 2.0 U 1.0 U NR 2.0 U NR 10 U 2.0 U 2.0 U NR 2.0 U MW -55 10/14/2003 4.0 U 5.0 4.011 4.0 U 4.0 U 200 U 200 U 4.0 U 4.0 U 8.0 U 4.0 U MW -55 4/2902004 5.0 U 7.2 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -55 4/21/2005 10 U 40 10 U IOU 10 U 500 U 500 U 10 U 10 U 20 U IOU MW -55 11/1/2005 2.6 U 45 8.0 J1 0.82 U 0.83 U 67 Ul 38 U 1.4 U 1.3 Ul 2.2 U 1.5 U MW -55 5/8/2006 4.0 U 130 1 4.0 U 4011 4.0 U 480 U 20 * 4.0 U 4.0 U IOU 4.0 U MW -57D 2/20!2003 GW -21.0 2.0 U 2.0 U 1.0 U NR 2.0 U NA 10 U 2.0 U 2.0 U NR 2.0 U MW -57D 10/13/2003 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -57D 1/27/2004 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -57D 4/28/2004 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U H) U MW -57D 7/15/2004 1.0 U1 1.0 ul 1.0 U1 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 ul 2.0 Ul 1.0 U MW -57D 1102005 0.26 U 0.18 Eu 0.20 U 0.080 U 0.080 Ul 6.7 U 3.8 Ul 0.14 Ul 0.13 U 0.22 U 0.15 U MW -57S 10/13/2003 GW -2 IOU IOU 10 U IOU 10 U 500 U 500 U IOU IOU 20 U 10 U MW -57S 1/28/2004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -57S 428/2004 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 250 U 250 U 5.0 U 5.0 U IOU 5.0 U MW -57S 7/152004 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 50 U 50 U 1.0 U 1.0 U 2.0 U 1.0 U MW -57S 1122005 0.26 Ul 0.18 Ul 0.20 U 1 0.08011 0.080 U 6.7 U 1 3.8 Ul 0.14 U OAUJ 0.2 U 0.15 U n 1 49 of 50 9n.aoo, Table 4 Historical Groundwater Analytical Results for VOCs Buildings 30 and 70M Remediation Systems Notes: rabie4 Volatile organic compounds that have not been detected in any of the wells are not included in the table. %- Highlighted Values indicate an exceedance of the applicable Method I Standard as follows Exceeds Applicable MCP Method 1 GW -2 or GW -3 Standard r Exceeds MCP Upper Concentration Limit (UCL) MCP UCL = Massachusetts Contingency Plan Method 3 Upper Concentration Limits (31OCMR 40 996) (Wave 2) MCP GW -2 = Massachusetts Contingency Plan Method 1 -GW-2 Standards (310 CMR 40 974) (Wave 2) MCP GW -3 = Massachusetts Contingency Plan Method 1 - GW -3 Standards (3 10 CMR 40 974) ( Wave 2) NA = Not Applicable or Not Analyzed. ND = Not Detected. Reporting limit not reported by previous environmental consultant. , NR= Not reported by previous environmental consultant. J = Value estimated below laboratory reporting limit. f 1 * = LCS, [.CSD, MS, MSD. MD, or Surrogate exceeds the control limits F = Sample collected during well development and analyzed using a field gas chromatograph. ` 50 of 50 Concentration ( ) u 3 d a ,CO„ y� u '� u g d MCPo a U= t = o I Ground- W d c water A > 71 = oL rj v C 1 .r a O O c r� Well Clacst- L L u v Location ID Sample Date ficatiott MCP UCL 100,000 100,000 100,000 100,000 1001000 100,000 100,000 80,000 100,000 50,000 NL 100,000, MCP GW -2 100 9,000 50,000 50,000 50,000 10,000 50. 8,000 90 30 NL 2 MCP GW -3 50,000 500 50,000 50,000 50,000 50,000 30,000 4,000 1 50,000 5,000 NL 50,000` Building 70/71 continued MW -55 2/20/2003 90 2.0 U IOU IOU 2.0 U 5.0 U 2.0 U 2.0 U 5.0 18 2.0 U 34 MW -55 10/14/2003 100 4.0 U 40 U 40 U 4.0 U 8.0 U 4.0 U 4.0 U 6.0 11 8.0 U 42 MW -55 4/29/2004 GW -2 140 5.0 U 50 U 50 U 5.0 U 10 U 5.0 U 5.0 U 7.0 31 5.0 U 31 MW -58 1 421/2005 380 10 U too U loo U IOU 20 U IOU IOU 8.7 J 64 IOU 530' MW -55 I 1/12005 940 3.8 Ul 19 Ul 10 Ul 3.0 Ul 5.0 Ul 1.4 Ul 5.0 Ul 7.6 JI 250 2.6 U 460, MW -55 5/8/2006 740 1 4.0 U 30 U 10 U 4.0 U 4.0 U 4.0 U 4.0 U 12 .1 150 6.0 U 1,100 r' MW -57D 220/2003 2.0 U 2.0 U IOU 10 U 2.0 U 5.0 U 2.0 U 2.0 U 2.0 U 2.0 U 2.0 U 2.0 MW -57D 10/132003 1.0U I.0U 10 IOU 1.0U 2.0U I.0U I.0U 1.0U 1.0U 2.0U 2.0U MW -57D 1/27P-004 GW -2 1.0 U 1.0 U 10 U IOU 1.0 U 2.0 U 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 0.30 MW -57D 4282004 1.0U 1.0 U. IOU 10U I.0U 2.0U 1.0U I.0U 1.0U 1.0 U. 1.0U 1.0 MW -57D 7/152004 1.0U 1.0 U1 10U toUI.OU 2.0U 0.81 J 1.0U 1.0 U1 I.OU 1.0U 1.0U MW -57D 1122005 0.39 U 0.38 U 1.9 U 1.0 U 0.. U 0.50 U 0.14 11 0.50 U 0.21 U 0.19 U 0.26 U 0.21 1' MW -57S 10/132003 53 10 U 100 U 100 U IOU 20 U 210 10 U 10 U 83 20 U 20 U MW -57S 128/2004 GW -2 10 5.0 U 50 U 50 U 5.0 U IOU 92 5.0 U 5.0 U 19 IOU 2.011 MW -57S 4282004 14 5.0 U 50 U 50 U 5.0 U IOU 58 5.0 U 5.0 U 21 5 U 5.0 MW -57S 7/152004 12 1.0 U IOU 10 U 1.0 U 2.0 U 47 1.0 U 1.0 U 14 1.0 U 0.63') MW -57S 1122005 4.1 0.38 U 1.9 U 1.0 U 0.30 Ul 0.50 Ul 82 0.50 Ul 0.21 Ul 5.9 0.26 U 0.22 U Notes: rabie4 Volatile organic compounds that have not been detected in any of the wells are not included in the table. %- Highlighted Values indicate an exceedance of the applicable Method I Standard as follows Exceeds Applicable MCP Method 1 GW -2 or GW -3 Standard r Exceeds MCP Upper Concentration Limit (UCL) MCP UCL = Massachusetts Contingency Plan Method 3 Upper Concentration Limits (31OCMR 40 996) (Wave 2) MCP GW -2 = Massachusetts Contingency Plan Method 1 -GW-2 Standards (310 CMR 40 974) (Wave 2) MCP GW -3 = Massachusetts Contingency Plan Method 1 - GW -3 Standards (3 10 CMR 40 974) ( Wave 2) NA = Not Applicable or Not Analyzed. ND = Not Detected. Reporting limit not reported by previous environmental consultant. , NR= Not reported by previous environmental consultant. J = Value estimated below laboratory reporting limit. f 1 * = LCS, [.CSD, MS, MSD. 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D D _ D�:D �D D 7 D ::) a D D D_ L) . ti- D a D C M M V1 N 00 N N L W O L U C O M O O M M O O O ON V'1 V1 V1 1, et t` Q\ In N i0 00 vl I-: 116 4 N � O C r.i N -- C a�.W v L O V O O 0 O O O O O O M O O O O O O O O O O O O O O O [- '�, v'i D\ M O N r 00 N O N I` vi O -- [- t, 00 00 O V M _N N M N N M N M V1 N N N N Daa�:) �D �D a�D �D �D �D � y O W O N C In M �n oo vn W) Ln O O O M O M C y � O O O C L r+ M O M M 0 0 kn kn kn 11 11 vl V1 kn W, kn 0 -41) 0 W 0 O O O O 0 0 0 0 0 0 0 0 0 0 0 0 —,c N — N O N O N N N O N N N NN N N kn kA � M '\ O N M v1 O \ N N M r 00 N C) U W O w wo APPENDIX A MASSACHUSETTS DEPARTMENT OF ENVIRONMENTAL PROTECTION BUREAU OF WASTE SITE ` CLEANUP 108 TRANSMITTAL FORM eDEP: Print Receipt Page 1 of 1 Submittal Summary & Receipt n Your submission is complete. Thank you for using DEP's online reporting system. You can select "My Homepage" to review your status. Li n DEP Transaction ID: 145326 Date and Time Submitted: 9/18/2007 12:16:33 PM F1 Other Email u BWSC Remedial Monitoring Report A( ) F1 BWSC Remedial Monitoring Report A( ) L BWSC Remedial Monitoring Report A( ) BWSC Remedial Monitoring Report A( ) BWSC Remedial Monitoring Report B( ) n BWSC Remedial Monitoring Report B( ) BWSC Remedial Monitoring Report B( ) BWSC Remedial Monitoring Report B( ) r-} Form Name: BWSC 108 CRA Transmittal Form & Phase I CS LJ RTN: 3-174 n Location: AT&T MERRIMAC VALLEY WORKS Address: 1600 OSGOOD ST, NORTH ANDOVER, 018450000 Person Making Submittal LUCENT TECHNOLOGIES INC L GREGORY P VIERKANT 2101 WEST CHESTERFIELD BLVD n SPRINGFIELD, MO 658076946 L' LSP LSP #: 5888 LLSP Name: JAMES J SOUKUP Person Making Certification ri LUCENT TECHNOLOGIES INC GREGORY VIERKANT L-, LUCENT TECHNOLOGIES INC GREGORY VIERKANT n Ancillary Document Uploaded/Mailed F1 BWSC-108 Ques.B15 - Phase V Status Report - By Mail L F n F L1 N https:Hedep.dep.mass.gov/restricted/webpages/printreceipt.aspx 9/18/2007 n u F-1 L C n L �i L� n U rt L I V u C C 'I Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108 Release Tracking Number COMPREHENSIVE RESPONSE ACTION TRANSMITTAL FORM & PHASE I COMPLETION STATEMENT - 174 Pursuant to 310 CMR 40.0484 (Subpart D) and 40.0800 (Subpart H) A. SITE LOCATION: 1. Site Name: AT&T MERRIMAC VALLEY WORKS 2. Street Address: 11600 OSGOOD ST 3. City/Town:ORTH ANDOVER 4. ZIP Code: 10184 005 00 5. UTM Coordinates: a. UTM N: !4732755 b. UTM E: 1326606 1 ❑ 6. Check here if a Tier Classification Submittal has been provided to DEP for this disposal site. Fla. Tier IA © b. Tier IB ❑ c. Tier IC ❑ d. Tier II 7. If applicable, provide the Permit Number: W016340 B. THIS FORM IS BEING USED TO: (check all that apply) ❑ 1. Submit a Phase I Completion Statement, pursuant to 310 CMR 40.0484. ❑ 2. Submit a Revised Phase I Completion Statement, pursuant to 310 CMR 40.0484. 3. Submit a Phase II Scope of Work, pursuant to 310 CMR 40.0834. L_.1 4. Submit an interim Phase II Report. This report does not satisfy the response action deadline requirements in 310 CMR 40.0500. ❑ 5. Submit a final Phase II Report and Completion Statement, pursuant to 310 CMR 40.0836. ❑ 6. Submit a Revised Phase II Report and Completion Statement, pursuant to 310 CMR 40.0836. 7. Submit a Phase III Remedial Action Plan and Completion Statement, pursuant to 310 CMR 40.0862. [� 8. Submit a Revised Phase III Remedial Action Plan and Completion Statement, pursuant to 310 CMR 40.0862. j J 9. Submit a Phase IV Remedy Implementation Plan, pursuant to 310 CMR 40.0874. tj 10. Submit a Modified Phase IV Remedy Implementation Plan, pursuant to 310 CMR 40.0874. ❑� 11. Submit an As -Built Construction Report, pursuant to 310 CMR 40.0875. ❑ 12. Submit a Phase IV Status Report, pursuant to 310 CMR 40.0877. ❑ 13. Submit a Phase IV Completion Statement, pursuant to 310 CMR 40.0878 and 40.0879. Specify the outcome of Phase IV activities: (check one) ❑ a. Phase V Operation, Maintenance or Monitoring of the Comprehensive Remedial Action is necessary to achieve a Response Action Outcome. b. The requirements of a Class A Response Action Outcome have been met. No additional Operation, Maintenance or ❑ Monitoring is necessary to ensure the integrity of the Response Action Outcome. A completed Response Action Outcome Statement and Report (BWSC104) will be submitted to DEP. c. The requirements of a Class C Response Action Outcome have been met. No additional Operation, Maintenance or ❑ Monitoring is necessary to ensure the integrity of the Response Action Outcome. A completed Response Action Outcome Statement and Report (BWSC104) will be submitted to DEP. d. The requirements of a Class C Response Action Outcome have been met. Further Operation, Maintenance or ❑ Monitoring of the remedial action is necessary to ensure that conditions are maintained and that further progress is made toward a Permanent Solution. A completed Response Action Outcome Statement and Report (BWSC104) will be submitted to DEP. (All sections of this transmittal form must be filled out unless otherwise noted above) Revised: 2/15/2005 Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108 COMPREHENSIVE RESPONSE ACTION TRANSMITTAL Release Tracking Number FORM & PHASE I COMPLETION STATEMENT 3� - 174 Pursuant to 310 CMR 40.0484 (Subpart D) and 40.0800 (Subpart H) B. THIS FORM IS BEING USED TO (cont): (check all that apply) 14. Submit a Revised Phase IV Completion Statement, pursuant to 310 CMR 40.0878 and 40.0879. 15. Submit a Phase V Status Report, pursuant to 310 CMR 40.0892. Z 16. Submit a Remedial Monitoring Report. (This report can only be submitted. through eDEP.) a. Type of Report: (check one) ❑ i. Initial Report Z ii. Interim Report ® iii. Final Report b. Frequency of Submittal: (check all that apply) [-] i. A Remedial Monitoring Report(s) submitted monthly to address an Imminent Hazard. ii. A Remedial Monitoring Report(s) submitted monthly to address a Condition of Substantial Release Migration. Q iii. A Remedial Monitoring Report(s) submitted concurrent with a Status Report. c. Status of Site: (check one) ✓� i. Phase V ❑ ii. .RRemedy —Operation Status F] iii. Class C RAO d. Number of Remedial Systems and/or Monitoring Programs: 14 W� 1 A separate BWSC108A, CRA Remedial Monitoring Report, must be filled out for each Remedial System and/or Monitoring Program addressed by this transmittal form. 17. Submit a Remedy Operation Status, pursuant to 310 CMR 40.0893. 18. Submit a Status Report to maintain a Remedy Operation Status, pursuant to 310 CMR 40.0893(2). F] 19. Submit a Modification of a. Remedy Operation Status, pursuant to 310 CMR 40.0893(5). 20. Submit a Termination of a Remedy Operation Status, pursuant to 310 CMR 40.0893(6). 21. Submit a Phase V Completion Statement, pursuant to 310 CMR 40.0894. Specify the outcome of Phase V activities: (check one) a. The requirements of a Class A Response Action Outcome have been met. No additional Operation, Maintenance or Monitoring is necessary to ensure the integrity of the Response Action Outcome. A completed Response Action Outcome Statement (BWSC104) will be submitted to DEP. b. The requirements of a Class C Response Action Outcome have been met. No additional Operation, Maintenance or Monitoring is necessary to ensure the integrity of the Response Action Outcome. A completed Response Action Outcome Statement and Report (BWSC104) will be submitted to DEP. c. The requirements of a Class C Response Action Outcome have been met. Further Operation, Maintenance or ❑Monitoring of the remedial action is necessary to ensure that conditions are maintained and/or that further progress is made toward a Permanent Solution. A completed Response Action Outcome Statement and Report. (BWSC104) will be submitted to DEP. 22. Submit a Revised Phase V Completion Statement, pursuant to 310 CMR 40.0894. 23. Submit a Post -Class C Response Action Outcome Status Report, pursuant to 310 CMR 40.0898. (All sections of this transmittal form must be filled out unless otherwise noted above) Revised: 2/15/2005 Page 2 of 5 ` -' u r I V n Li U C u n L u V �1 E n L_J Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108 i Release Tracking Number i COMPREHENSIVE RESPONSE ACTION TRANSMITTAL g FORM & PHASE I COMPLETION STATEMENT 3❑ - 174 Pursuant to 310 CMR 40.0484 (Subpart D) and 40.0800 (Subpart H) C. LSP SIGNATURE AND STAMP: I attest under the pains and penalties of perjury that I have personally examined and am familiar with this transmittal form, including any and all documents accompanying this submittal. In my professional opinion and judgment based upon application of (i) the standard of care in 309 CMR 4.02(1), (ii) the applicable provisions of 309 CMR 4.02(2) and (3), and 309 CMR 4.03(2), and (iii) the provisions of 309 CMR 4.03(3), to the best of my knowledge, information and belief, > if Section B indicates that a Phase 1, Phase Il, Phase Ill, Phase IV or Phase V Completion Statement is being submitted, the response action(s) that is (are) the subject of this submittal (i) has (have) been developed and implemented in accordance with the applicable provisions of M.G.L. c. 21 E and 310 CMR 40.0000, (ii) is (are) appropriate and reasonable to accomplish the purposes of such response action(s) as set forth in the applicable provisions of M.G.L. c. 21 E and 310 CMR 40.0000, and (iii) comply(ies) with the identified provisions of all orders, permits, and approvals identified in this submittal; > if Section B indicates that a Phase I/ Scope of Work or a Phase IV Remedy Implementation Plan is being submitted, the response action(s) that is (are) the subject of this submittal (i) has (have) been developed in accordance with the applicable provisions of M.G.L. c. 21 E and 310 CMR 40.0000, (ii) is (are) appropriate and reasonable to accomplish the purposes of such response action(s) as set forth in the applicable provisions of M.G.L. c. 21 E and 310 CMR 40.0000, and (iii) comply(ies) with the identified provisions of all orders, permits, and approvals identified in this submittal; > if Section B indicates that an As -Built Construction Report, a Remedy Operation Status,a Phase IV, Phase V or Post -Class C RAO Status Report, a Status Report to Maintain a Remedy Operation Status and/or a Remedial Monitoring Report is being submitted, the response action(s) that is (are) the subject of this submittal (i) is (are) being implemented in accordance with the applicable provisions of M.G.L. c. 21 E and 310 CMR 40.0000, (ii) is (are) appropriate and reasonable to accomplish the purposes of such response action(s) as set forth in the applicable provisions of M.G.L. c. 21 E and 310 CMR 40.0000, and (iii) comply(ies) with the identified provisions of all orders, permits, and approvals identified in this submittal. I am aware that significant penalties may result, including, but not limited to, possible fines and imprisonment, if I submit information which I know to be false, inaccurate or materially incomplete. 1. LSP-#: 5888 2. First Name: IJAMES J 3. Last Name: SOUKUP 4. Telephone: 6036565480 5. Ext.: 6. FAX: 7. Signature: 8. Date: I 9. LSP Stamp: (mm/dd/yyyy) Revised: 2/15/2005 Page 3 of 5 Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108 COMPREHENSIVE RESPONSE ACTION TRANSMITTAL Release Tracking Number ' FORM & PHASE I COMPLETION STATEMENT 33 i Pursuant to 310 CMR 40.0484 (Subpart D) and 40.0800 (Subpart H) D. PERSON UNDERTAKING RESPONSE ACTIONS: 1. Check all that apply: ® a. change in contact name ® b. change of address ❑ c. change in the person --undertaking response actions 2. Name of Organization: ILUCENT TECHNOLOGIES INC 3. Contact First Name: GREGORY P 4. Last Name: IVIERKANT 2101 WEST CHESTERFIELD BLVD PROJECT MANAGER-ENVTL HEALTH AN 5. Street: 6. Title: q 7. City/Town: jSPRINGFIELD 8. State: MO 9. ZIP Code: 65807-6946 10. Telephone: 4178822211 ---� 11. Ext.: 2211 12. FAX: 1— —� E. RELATIONSHIP TO SITE OF PERSON UNDERTAKING RESPONSE ACTIONS: 01/ 1. RP or PRP ❑✓ a. Owner ❑ b. Operator ❑ c. Generator ❑ d. Transporter ❑ e. Other RP or PRP Specify: J 2. Fiduciary, Secured Lender or Municipality with Exempt Status (as defined by M.G.L. c. 21E, s. 2) r---, 3. Agency or Public Utility on a Right of Way (as defined by M.G.L. c. 21 E, s. 50)) 4. Any Other Person Undertaking Response Actions Specify Relationship: IF. REQUIRED ATTACHMENT AND SUBMITTALS: 1. Check here if the Response Action(s) on which this opinion is based, if any, are (were) subject to any order(s), permit(s) 0 and/or approval(s) issued by DEP or EPA. If the box is checked, you MUST attach a statement identifying the applicable provisions thereof. U2. Check here to certify that the Chief Municipal Officer and the Local Board of Health have been notified of the submittal of any Phase Reports to DEP. 3. Check here to certify that the Chief Municipal Officer and the Local Board of Health have been notified of the availability of a Phase III Remedial Action Plan. Fi 4. Check hereto certify that the Chief Municipal Officer and the Local Board of Health have been notified of the availability of a Phase IV Remedy Implementation Plan. 5. Check here to certify that the Chief Municipal Officer and the Local Board of Health have been notified of any field work involving the implementation of a Phase IV Remedial Action. ®6. If submitting a Modification of a Remedy Operation Status, check here to certify'that a statement detailing the compliance history, as per 310 CMR 40.0893(5), for the person making this submittal is attached. Ei7. If submitting a Modification of a Remedy Operation Status, check here to certify thatwritten consent of the person who submitted the Remedy Operation Status submittal, as per 310 CMR 40.0893(5), is attached. 8. Check here if any non-updatable information provided on this form is incorrect, e.g. Site Name. Send corrections to the j DEP Regional Office. 9. Check here to certify that the LSP Opinion containing the material facts, data, and other information is attached. Revised: 2/15/2005 Page 4 of 5 L ..d C n Li r mw Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108 COMPREHENSIVE RESPONSE ACTION TRANSMITTAL Release Tracking Number FORM & PHASE I COMPLETION STATEMENT ] - Pursuant to 310 CMR 40.0484 (Subpart D) and 40.0800 (Subpart H) G. CERTIFICATION OF PERSON UNDERTAKING RESPONSE ACTIONS: 1. (,;GREGORY VIERKANT attest under the pains and penalties of perjury (i) that I have personally examined and am familiar with the information contained in this submittal, including any and all documents accompanying this transmittal form, (ii) that, based on my inquiry of those individuals immediately responsible for obtaining the information, the material information contained in this submittal is, to the best of my knowledge and belief, true, accurate and complete, and (iii) that I am fully authorized to make this attestation on behalf of the entity legally responsible for this submittal. I/the person or entity on whose behalf this submittal is made am/is aware that there are significant penalties, including, but not limited to, possible fines and imprisonment, for willfully submitting false, inaccurate, or incomplete information. 2. By. 1 _'_` 3. Title: PROJECT MANAGER-ENVTL H Signature 4. For: ;LUCENT TECHNOLOGIES INC 5. Date: l (Name of person or entity recorded in Section D) (mm/dd/yyyy) E, 6. Check here if the address of the person providing certification is different from address recorded in Section D. LJ 17. Street: F) 8. City/Town: u 11. Telephone: n u n 'u F-: u f' u 7 u V F Li I n L 9. State: 10. ZIP Code: 12. Ext.: 13. FAX: YOU ARE SUBJECT TO AN ANNUAL COMPLIANCE ASSURANCE FEE OF UP TO $10,000 PER BILLABLE YEAR FOR THIS DISPOSAL SITE. YOU MUST LEGIBLY COMPLETE ALL RELEVANT SECTIONS OF THIS FORM OR DEP MAY RETURN THE DOCUMENT AS INCOMPLETE. IF YOU SUBMIT AN INCOMPLETE FORM, YOU MAY BE PENALIZED FOR MISSING A REQUIRED DEADLINE. Date Stamp (DEP USE ONLY:) Revised: 2/15/2005 Page 5 of 5 f Li n u Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A 1 Release Tracking Number CRA REMEDIAL MONITORING REPORT Pursuant to 310 CMR 40.0800 (SUBPART H) ��� Remedial System or Monitoring Program: t 1 of: A. DESCRIPTION OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM: 1. Type of Active Remedial System or Active Remedial Monitoring Program: (check all that apply) ✓❑ a. Active Remedial System: (check all that apply) i. NAPL Recovery ii. Soil Vapor Extraction/Bioventing Q iii. Vapor -phase Carbon Adsorption ❑ iv. Groundwater Recovery ❑ v. Dual/Multi-phase Extraction ❑ vi. Aqueous -phase Carbon Adsorption ❑ vii. Air Stripping ❑ viii. Sparging/Biosparging ❑ ix. Cat/Thermal Oxidation ❑ x. Other Describe: b. Application of Remedial Additives: (check all that apply) ✓0 i. To the Subsurface ❑ ii. To Groundwater (Injection) ❑ iii. To the Surface r� c. Active Remedial Monitoring Program Without the Application of Remedial Additives: (check all that apply; Sections C, D and E are not required; attach supporting information, data, maps and/or sketches needed by checking Section F5) ❑ i. Reactive Wall ❑ ii. Natural Attenuation ❑ iii. Other Describe: 2. Mode of Operation: (check one) ❑ a. Continuous ❑ b. Intermittent 0 c. Pulsed ❑ d. One-time Event Only ❑ e. Other: 3. System Effluent/Discharge: (check all that apply) ❑ a. Sanitary Sewer/POTW ❑ b. Groundwater Re-infiltration/Re-injection: (check one) ❑ i. Downgradient ❑ ii. Upgradient ✓) c. Vapor -phase Discharge to Ambient Air: (check one) FJ7 i. Off -gas Controls ❑ ii. No Off -gas Controls d. Drinking Water Supply ❑ e. Surface Water (including Storm Drains) ❑ f. Other Describe: B. MONITORING FREQUENCY: 1. Reporting period that is the subject of this submittal: From: 12/1/2005 -� To: 5/31/2006 (mm/dd/yyyy) (mm/dd/yyyy) 2. Number of monitoring events during the reporting period: (check one) ❑ a. System Startup: (if applicable) ❑ i. Days 1, 3, 6, and then weekly thereafter, for the first month. ❑ ii. Other Describe: b. Post -system Startup (after first month) or Monitoring Program: © i. Monthly ❑ ii. Quarterly ❑ iii. Other Describe: ! 3. Check here to certify that the number of required monitoring events were conducted during the reporting period. C. EFFLUENT/DISCHARGE REGULATION: (check.one to indicate how the effluent/discharge limits were established) 1. NPDES: (check one) ❑ a. Remediation General Permit ❑ b. Individual Permit ❑ c. Emergency Exclusion Effective Date of Permit: F ✓❑ 2. MCP Performance Standard MCP Citations(s): 1410049 3. DEP Approval Letter Date of Letter: ❑ 4. Other Describe: u Revised: 2/9/2005 n Page 1 of 3 Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A CRA REMEDIAL MONITORING REPORT Release Tracking Number Pursuant to 310 CMR 40.0800 (SUBPART H) E - 1174 Remedial System or Monitoring Program: 11 of: ty J D. WASTEWATER TREATMENT PLANT OPERATOR: (check one) ❑ 1. Required due to Remedial Wastewater Treatment Plant inlace for more than 30 days. a. Name: L _ b. Grade: c. License No.: _ — -__—_ __ __ d. License Exp. Date: I 2. Not Required (mm/dd/yyyy) [ZJ 3. Not Applicable E. STATUS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM DURING REPORTING PERIOD: (check all that apply) 1. The Active Remedial System was functional one or more days during the Reporting Period. a. Days System was Fully Functional: 135 b. GW Recovered (gals): c. NAPL Recovered (gals): F— d. GW Discharged (gals): �— e. Avg. Soil Gas Recovery Rate (scfm): 185 -`� f. Avg. Sparging Rate (scfm) U 2. Remedial Additives: (check all that apply) ❑✓ a. No Remedial Additives applied during the Reporting Period. ❑ b. Enhanced Bioremediation Additives applied: (total quantity applied at the site for the current reporting period) L Nitrogen/Phosphorus: ❑ ii. Peroxides: Name of Additive Date Quantity Units Name of Additive Date Quantity Units ❑ iii. Microorganisms: ❑ iv. Other. Name of Additive Date Quantity Units Name of Additive Date Quantity Units ❑ c. Chemical oxidation/reduction additives applied: (total quantity applied at the site for the current reporting period) ❑ i. Permanganates: Name of Additive Date Quantity Units F iii. Persulfates: Name of Additive I Date I Quantity I Units Revised: 2/9/2005 ❑ ii. Peroxides: Name of Additive Date Quantity Units iv. Other: Name of Additive I Date lQuantity j Units rM Page 2 of 3 ` a� Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A Release Tracking Number CRA REMEDIAL MONITORING REPORT 174 Pursuant to 310 CMR 40.0800 (SUBPART H)�--� 3❑ - Remedial System or Monitoring Program: E. STATUS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM DURING REPORTING PERIOD: (cont.) (check all that apply) ,J d. Other additives applied: (total quantity applied at the site for the current reporting period) Name of Additive Date Quantity Units Name of Additive Date Quantity Units e. Check here if any additional Remedial Additives were applied. Attach list of additional additives and include Name of Additive, Date Applied, Quantity Applied and Units (in gals. or lbs.) F. SHUTDOWNS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM: (check all that apply) 1. The Active Remedial System had unscheduled shutdowns on one or more occasions during the Reporting Period. a. Number of Unscheduled Shutdowns: b. Total Number of Days of Unscheduled Shutdowns: c. Reason(s) for Unscheduled Shutdowns: ✓� 2. The Active Remedial System had scheduled shutdowns on one or more occasions during the Reporting Period. a. Number Scheduled Shutdowns: ® 76 of b. Total Number of Days of Scheduled Shutdowns: c. Reason(s) for Scheduled Shutdowns: PULSED OPERATION BECAUSE CONTAMINANT REMOVAL RATE IS VERY LOW. 3. The Active Remedial System or Active Remedial Monitoring Program was permanently shutdown/discontinued during the Reporting Period. a. Date of Final System or Monitoring Program Shutdown: (mm/dd/yyyy) �] b. No Further Effluent Discharges. c. No Further Application of Remedial Additives planned; sufficient monitoring completed to demonstrate compliance with 310 CMR 40.0046. d. No Further Submittals Planned. e. Other: Describe: G. SUMMARY STATEMENTS: (check all that apply for the current reporting period) f� 1. All Active Remedial System checks and effluent analyses required by the approved plan and/or permit were EJ performed when applicable. z2. There were no significant problems or prolonged (>25% of reporting period) unscheduled shutdowns of the Active Remedial System. 3. The Active Remedial System or Active Remedial Monitoring Program operated in conformance with the MCP, and all t �J applicable approval conditions and/or permits. 4. Indicate any Operational Problems or Notes: 5. Check here if additional/supporting Information, data, maps, and/or sketches are attached to the form. Revised: 2/9/2005 Page 3 of 3 & & � \ \ k } j _C'. ƒ\$y § 77\/ co ƒ . C c 0 12 > c F- U)\ \ . . / 9 k\ J w }I . E \ C: �\ �q r �u \ \ k / k � ❑ �H13❑ ❑ � � ❑ � ❑ � ❑ � ❑ ❑ � ❑ ❑ ❑ U=z e E (n = ? t§ C: 0- } \ 7 d 2 NL) § §§ 2 - of @c a o� n .\ ❑� o o � . o c \-"� 0 $ #E22 2,L § % 3 c . \ u 0 cu k 0 .2 0 / L.o a.a I$g 13ma E . % { & §. .LL g c 3= re�- o A c ■ _ CL .s cg § w 7 g Q # k �� § b2 « a) @ W� c \ 3 _ w % § Ow E" O 2 2 £ {� e 2 § c q&/ c 2 E n a E U \ j m\ O \ ■ 2LU§} y 3 2 e k \ / /c \ oCO 00 2 I i 0 o \ >> . O E u c Q Q d W o \ƒ% p 2 § 0 p v WZ / k 76 ) ® § q \ 5 E k 2 2 2 L; E( o m m 7 k� U w� ) \ k k ( 2 . Eur 2 5 � k I co , c } 2 t a E z e { 2 0 z 0 3 e 2 :03 § / 2 & & � \ \ k } n U n Li L� n V I I L r f eu n V n U r t u r I u u F. u n i� f F L_J Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A CRA REMEDIAL MONITORING REPORT Release Tracking Number Pursuant to 310 CMR 40.0800 (SUBPART H) 3F Remedial System or Monitoring Program: 0 of: A. DESCRIPTION OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM: 1. Type of Active Remedial System or Active Remedial Monitoring Program: (check all that apply) (� a. Active Remedial System: (check all that apply) i. NAPL Recovery ❑ ii. Soil Vapor Extraction/Bioventing iii. Vapor -phase Carbon Adsorption ❑✓ iv. Groundwater Recovery ❑ v. Dual/Multi-phase Extraction ❑ vi. Aqueous -phase Carbon Adsorption ❑✓ vii. Air Stripping viii. Sparging/Biosparging ix. Cat/Thermal Oxidation 11 x. Other Describe: i b. Application of Remedial Additives: (check all that apply) ❑ i. To the Subsurface ❑ ii. To Groundwater (Injection) ❑ iii. To the Surface ❑ c. Active Remedial Monitoring Program Without the Application of Remedial Additives: (check all that apply; Sections C, D and E are not required; attach supporting information, data, maps and/or sketches needed by checking Section F5) ❑ i. Reactive Wall ❑ ii. Natural Attenuation ❑ iii. Other Describe: 2. Mode of Operation: (check one) Fla. Continuous Q b. Intermittent ❑ c. Pulsed ® d. One-time Event Only ❑ e. Other: 3. System Effluent/Discharge: (check all that apply) ❑ a. Sanitary Sewer/POTW ❑ b. Groundwater Re-infiltration/Re-injection: (check one) ❑ I. Downgradient ❑ ii. Upgradient ❑✓ c. Vapor -phase Discharge to Ambient Air: (check one) i. Off -gas Controls ❑ ii. No Off -gas Controls ❑ d. Drinking Water Supply �L✓] e. Surface Water (including Storm Drains) ❑ f. Other Describe: B. MONITORING FREQUENCY: 1. Reporting period that is the subject of this submittal: From: 12/1/2005 To: 5/31/2006 (mm/dd/yyyy) (mm/dd/yyyy) 2. Number of monitoring events during the reporting period: (check one) ❑ a. System Startup: (if applicable) ❑ i. Days 1, 3, 6, and then weekly thereafter, for the first month. ❑ ii. Other Describe: i� b. Post -system Startup (after first month) or Monitoring Program: ❑ i. Monthly ❑ ii. Quarterly Q iii.. Other Describe: MONTHLY WHEN SYSTEM WAS IN OPERATION ❑✓ 3. Check here to certify that the number of required monitoring events were conducted during the reporting period. C. EFFLUENTIDISCHARGE REGULATION: (check one to indicate how the effluent/discharge limits were established) ❑✓ 1. NPDES: (check one) ❑ a. Remediation General Permit ❑✓ b. Individual Permit ❑ c. Emergency Exclusion Effective Date of Permit: 7/2/2002 ❑ 2. MCP Performance Standard MCP Citations(s): l� ❑ 3. DEP Approval Letter Date of Letter: ❑ 4. Other Describe: Revised: 2/9/2005 Page 1 of 3 I Massachusetts Department of Environmental Protection i Bureau of Waste Site Cleanup BWSC108A CRA REMEDIAL MONITORING REPORT Release Tracking Number Pursuant to 310 CMR 40.0800 (SUBPART H) r3] - 174 Remedial System or Monitoring Program: 52 of: D. WASTEWATER TREATMENT PLANT OPERATOR: (check one) 1. Required due to Remedial Wastewater Treatment Plant in place_for more than 30 days. a. Name: (ROBERT RICARD �1I b. Grade: 6-C c. License No.: 110524 12/31/2007 d. License Exp. Date: 2. Not Required (mm/dd/yyyy) t_.1 3. Not Applicable E. STATUS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM DURING REPORTING PERIOD: (check all that apply) ;vJ 1. The Active Remedial System was functional one or more days during the Reporting Period. a. Days System was Fully Functional: 25 b. GW Recovered (gals): 130600 c. NAPL Recovered (gals): I d. GW Discharged (gals): 130600 e. Avg. Soil Gas Recovery Rate (scfm): �� f. Avg. Sparging Rate (scfm) : I- 2. Remedial Additives: (check all that apply) Q a. No Remedial Additives applied during the Reporting Period. r] b. Enhanced Bioremediation Additives applied: (total quantity applied at the site for the current reporting period) 0 i. Nitrogen/Phosphorus: Name of Additive Date Quantity Units A iii. Microorganisms: Name of Additive F1 ii. Peroxides: Name of Additive Date Quantity Units n iv. Other: Date I Quantity I Units I I Name of Additive I Date l Quantity l Units c. Chemical oxidation/reduction additives applied: (total quantity applied at the site for the current reporting period) I i. Permanganates: 1-1 ii. Peroxides: Name of Additive Date Quantity Units Name of Additive Date Quantity Units iii. Persulfates: E] iv. Other: Name of Additive Date Quantity Units Name of Additive Date Quantity Units rM Revised: 2/9/2005 Page 2 of 3 L -J i Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A CRA REMEDIAL MONITORING REPORT Release Tracking Number LRemedial 4 174 Pursuant to 310 CMR 40.0800 (SUBPART H) a - --- System or Monitoring Program: L __1, of:® E. STATUS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM DURING REPORTING PERIOD: (cont.) (check all that apply) [] d. Other additives applied: (total quantity applied at the site for the current reporting period) Name of Additive Date Quantity Units Name of Additive Date Quantity Units r--I e. Check here if any additional Remedial Additives were applied. Attach list of additional additives and include Name t_ ! of Additive, Date Applied, Quantity Applied and Units (in gals. or lbs.) F. SHUTDOWNS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM: (check all that apply) �I 1. The Active Remedial System had unscheduled shutdowns on one or more occasions during the Reporting Period. a. Number of Unscheduled Shutdowns: b. Total Number of Days of Unscheduled Shutdowns: c. Reason(s) for Unscheduled Shutdowns: ✓Z 2. The Active Remedial System had scheduled shutdowns on one or more occasions during the Reporting Period. a. Number of Scheduled Shutdowns: © 156 b. Total Number of Days of Scheduled Shutdowns: c. Reason(s) for Scheduled Shutdowns: SYSTEM WAS OPERATED ONLY FOR SHORT PERIOD TO TEST TREATMENT OF WELL ONE WELL. ® 3. The Active Remedial System or Active Remedial Monitoring Program was permanently shutdown/discontinued during the Reporting Period. a. Date of Final System or Monitoring Program Shutdown: b. No Further Effluent Discharges. (mm/dd/yyyy) r c. No Further Application of Remedial Additives planned; sufficient monitoring completed to demonstrate compliance with 310 CMR 40.0046. d. No Further Submittals Planned. e. Other: Describe: G. SUMMARY STATEMENTS: (check all that apply for the current reporting period) 1. All Active Remedial System checks and effluent analyses required by the approved plan and/or permit were performed when applicable. 2. There were no significant problems or prolonged (>25% of reporting period) unscheduled shutdowns of the Active Remedial System. 3. The Active Remedial _System or Active Remedial Monitoring Program operated in conformance with the MCP, and all applicable approval conditions and/or permits. 4. Indicate any Operational Problems or Notes: PLEASE REFER TO ATTACHED PHASE V REPORT. THE SYSTEM HAS NOT BEEN OPERATED CONTINUOUSLY SINCE COMMENCEMENT OF ISCO PROGRAM IN DECEMBER 2003. 5. Check here if additional/supporting Information, data, maps, and/or sketches are attached to the form. Revised: 2/9/2005 Page 3 of 3 0 c E� >Lv:U'Z m Z m w co O Y U O i U �o ti > E co ,N caa � c �' 0 m � 79 70 Q) W� V) , I E N E Q) O N O 4 (� O 0 O 0 O 0 O 0 Ln U-) LO W Y J Q � CCD CO NQ ®®EEElD0®El®❑0® CQ® ®❑❑ ® ® i� L) z E (A 7 0 (D CO C N f4 0 - U '0- m N L U O U O t U Q c) OC U M fD N O _ O O OD f4U d c O C3 C Q m 0 ca U v 0 — C c O ( N L (L N E O C .� N C j C L V O U - i+ N - 0 0 N U N d m N to r C o OZ c a. > w� O 0 WN cco -71 LU 0)wW 0 4 ZZx m m LL Z W C U Q o z0 4 c E Z F— W No m rn U wN Z W z W O c U U Z o r CL) 2 `o = z O 00 o:t--0) F- W OJ J W o 0 (n o O t c u c c 0 W Z= Y V V am s Q)J= 0 E- O p o U E u c N W a)ir, 0 i 0 cn Z I- r r (� 16 W O m W.2 W co j y 0 E c o cD c0 cD O N E 2C4 .O LL M L cG m LU O a)Q O N mW E N N OO N N W \ \ 1 \ L o E a v t C a a y a a a a L U I LL i 0 Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A CRA REMEDIAL MONITORING REPORT Release Tracking Number Pursuant to 310 CMR 40.0800 (SUBPART H) �----�F3- 174 Remedial System or Monitoring Program: L� 1 of: A. DESCRIPTION OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM: 1. Type of Active Remedial System or Active Remedial Monitoring Program: (check all that apply) l.r l a. Active Remedial System: (check all that apply) L NAPL Recovery ®✓ ii. Soil Vapor Extraction/Bioventing iii. Vapor -phase Carbon Adsorption iv. Groundwater Recovery ❑ v. Dual/Multi-phase Extraction ❑ vi. Aqueous -phase Carbon Adsorption ❑ vii. Air Stripping ® viii. Sparging/Biosparging Q ix. Cat/Thermal Oxidation x. Other Describe: ❑ b. Application of Remedial Additives: (check all that apply) ❑ i. To the Subsurface ❑ ii. To Groundwater (Injection) ❑ iii. To the Surface r c. Active Remedial Monitoring Program Without the Application of Remedial Additives: (check all that apply; Sections C, D and E are not required; attach supporting information, data, maps and/or sketches needed by checking Section F5) ❑ i. Reactive Wall ❑ ii. Natural Attenuation ❑ iii. Other Describe: 2. Mode of Operation: (check one) (Z a. Continuous ❑ b. Intermittent ❑ c. Pulsed ❑ d. One-time Event Only ❑ e. Other:` 3. System Effluent/Discharge: (check all that apply) ❑ a. Sanitary Sewer/POTW ❑ b. Groundwater Re-infiltration/Re-injection: (check one) ❑ i. Downgradient [] ii. Upgradient ❑ c. Vapor -phase Discharge to Ambient Air: (check one) D I. Off -gas Controls ❑ ii. No Off -gas Controls ❑ d. Drinking Water Supply ❑ e. Surface Water (including Storm Drains) ❑ f. Other Describe: B. MONITORING FREQUENCY: 1. Reporting period that is the subject of this submittal: From: 12/1/2005 = To: 5/31/2006 (mm/dd/yyyy) (mm/dd/yyyy) 2. Number of monitoring events during the reporting period: (check one) Fla. System Startup: (if applicable) ❑ i. Days 1, 3, 6, and then weekly thereafter, for the first month. ❑ ii. Other Describe: �} b. Post -system Startup (after first month) or Monitoring Program: © i. Monthly ❑ ii. Quarterly ❑ iii. Other Describe: ;✓ 3. Check here to certify that the number of required monitoring events were conducted during the reporting period. C. EFFLUENTIDISCHARGE REGULATION: (check one to indicate how the effluent/discharge limits were established) 1. NPDES: (check one) ❑ a. Remediation General Permit ❑ b. Individual Permit ❑ c. Emergency Exclusion Effective Date of Permit: ✓❑ 2. MCP Performance Standard MCP Citations(s): 40.00491 ❑ 3. DEP Approval Letter Date of Letter: ❑ 4. Other Describe: Revised: 2/9/2005 Page 1 of 3 Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A CRA REMEDIAL MONITORING REPORT Release Tracking Number Pursuant to 310 CMR 40.0800 (SUBPART H) 33 - 174 Remedial System or Monitoring Program: 1? J of: F4 _1 D. WASTEWATER TREATMENT PLANT OPERATOR: (check one) 1. Required due to Remedial Wastewater Treatment Plant in place for more than 30 days. a. Name: t (I b. Grade: c. License No.: ! _' d. License Exp. Date: F- C 2. Not Required (mm/dd/yyyy) 3. Not Applicable E. STATUS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM DURING REPORTING PERIOD: (check all that apply) ❑✓ 1. The Active Remedial System was functional one or more days during the Reporting Period. a. Days System was Fully Functional: 170 b. GW Recovered (gals): c. NAPL Recovered (gals): I d. GW Discharged (gals): e. Avg. Soil Gas Recovery Rate (scfm): 11075 f. Avg. Sparging Rate (scfm) : 2. Remedial Additives: (check all that apply) ® a. No Remedial Additives applied during the Reporting Period. b. Enhanced Bioremediation Additives applied: (total quantity applied at the site for the current reporting period) i. Nitrogen/Phosphorus: F] ii. Peroxides: Name of Additive Date Quantity Units Name of Additive Date Quantity Units iii. Microorganisms: ❑ iv. Other. Name of Additive Date Quantity Units Name of Additive Date Quantity Units c. Chemical oxidation/reduction additives applied: (total quantity applied at the site for the current reporting period) F1 i. Permanganates: n ii. Peroxides: Name of Additive Date Quantity Units Name of Additive Date Quantity Units E] iii. Persulfates: Name of Additive Date Quantity Units Div. Other. Name of Additive Date Quantity Units Revised: 2/9/2005 Page 2 of 3 1 1 n I L, n L F, u F L n n LJ Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A CRA REMEDIAL MONITORING REPORT Release Tracking Number Pursuant to 310 CMR 40.0800 (SUBPART H) 3� - 174 — --- Remedial System or Monitoring Program: L� �, of:® [E ­.STATUS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM DURING REPORTING PERIOD: (cont.) (check all that apply) [] d. Other additives applied: (total quantity applied at the site for the current reporting period) Name of Additive Date lQuantity Units Name of Additive Date lQuantity Units e. Check here if any additional Remedial Additives were applied. Attach list of additional additives and include Name of Additive, Date Applied, Quantity Applied and Units (in gals. or lbs.) F. SHUTDOWNS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM: (check all that apply) 1. The Active Remedial System had unscheduled shutdowns on one or more occasions during the Reporting Period. a. Number of Unscheduled Shutdowns: 4 b. Total Number of Days of Unscheduled Shutdowns: 9 c. Reason(s) for Unscheduled Shutdowns: FAILURE OF SEAL IN SEP. PUMP, PROBLEMS WITH CONTROL SYSTEM, BROKEN BLOWER BELT lr J 2. The Active Remedial System hadscheduled shutdowns on one or more occasions during the Reporting Period. a. Number of Scheduled Shutdowns: 1.' b. Total Number of Days of Scheduled Shutdowns: 2 c. Reason(s) for Scheduled Shutdowns: MAINTENANCE OF SVE BLOWER AND PROCESS EQUIPMENT. r— 13. The Active Remedial System or Active Remedial Monitoring Program was permanently shutdown/discontinued during the LJ Reporting Period. a. Date of Final System or Monitoring Program Shutdown: b. No Further Effluent Discharges. (mm/dd/yyyy) c. No Further Application of Remedial Additives planned; sufficient monitoring completed to demonstrate compliance with 310 CMR 40.0046. d. No Further Submittals Planned. e. Other: Describe: G. SUMMARY STATEMENTS: (check all that apply for the current reporting period) r1. All Active Remedial System checks and effluent analyses required by the approved plan and/or permit were performed when applicable. 2. There were no significant problems or prolonged (>25% of reporting period) unscheduled shutdowns of the Active Remedial System. 3. The Active Remedial System or Active Remedial Monitoring Program operated in conformance with the MCP, and all applicable approval conditions and/or permits. 4. Indicate any Operational Problems or Notes: THIS SYSTEM IS CONNECTED TO THE BUILDING 70171 GWTP DETAILED AS SYSTEM 2 OF 4 © 5. Check here if additional/supporting Information, data, maps, and/or sketches are attached to the form. Revised: 2/9/2005 Page 3 of 3 r L r � � � � Li n � � Li E � � � � � � � � B \ � \ \ LO ) R ƒ\\2� �| E z \ | \ co c | /�� � \ � W D 5 .0 ! (D ƒ ® \ ) e2 ƒ \ 0 cl u G \ k(/ 11 El El DID DID❑ DID 0 Ll El 0 El Ol El 00❑ # © = z m2 -0 | \ \f d2 2 } \ §E ( 7 3f ecc - 3 c/ \ �� 7 0 0 0 \ƒ�� $ '0 CL % / 0 2 ± L- a)0 £ {#©3 E § 7 Sc#3 LL C % ] z2±\ ■ @ ` E w ] © / a 2 _ § a. O i W R c k ° � Zz \ o a 2 a m I o �� °° 7 2 0 4)/ o q. k 7 (10 oz 0 2( o § j j }¢ \/ \ c U 2 -_ om LU \ m m a w 7 / } u u / D f\\ >> 2 E o / U o E \ I § § w 3 /ƒ% 3 0 0 R \ t z2 m Uw 2 w R LLI5 § � D \ e § ® ®� «LL E § , 2� � d Ub) § / c 0 D k Cl) . j \ 5 » f0 z z o J 0 a. 2ca \ k v u . .L B \ � \ \ LO ) LJ E n U 11 r L C p u C C Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A Release Tracking Number CRA REMEDIAL MONITORING REPORT, L Pursuant to 310 CMR 40.0800 (SUBPART H) El - 174 Remedial System or Monitoring Program: i4`� of: A. DESCRIPTION OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM: 1. Type of Active Remedial System or Active Remedial Monitoring Program: (check all that apply) 21 a. Active Remedial System: (check all that apply) ❑ i. NAPL Recovery ® ii. Soil Vapor Extraction/Bioventing [2] iii. Vapor -phase Carbon Adsorption ❑✓ iv. Groundwater Recovery ❑ v. Dual/Multi-phase Extraction ❑ vi. Aqueous -phase Carbon Adsorption ❑✓ vii. Air Stripping ❑ viii. Sparging/Biosparging 0 ix. Cat/Thermal Oxidation 13 x. Other Describe: I ❑ b. Application of Remedial Additives: (check all that apply) ❑ i. To the Subsurface ❑ ii. To Groundwater (Injection) ❑ iii. To the Surface ❑ c. Active Remedial Monitoring Program Without the Application.of Remedial Additives: (check all that apply; Sections C, D and E are not required; attach supporting information, data, maps and/or sketches needed by checking Section 175) ❑ i. Reactive Wall ❑ ii. Natural Attenuation ❑ iii. Other Describe: 2. Mode of Operation: (check one) ❑ a. Continuous Q b. Intermittent ❑ c. Pulsed ❑ d. One-time Event Only ❑ e. Other: 3. System Effluent/Discharge: (check all that apply) a. Sanitary Sewer/POTW ❑ b. Groundwater Re-infiltration/Re-injection: (check one) ® i. Downgradient ❑ ii. Upgradient ❑ c. Vapor -phase Discharge to Ambient Air: (check one) © i. Off -gas Controls ❑ ii. No Off -gas Controls lj d. Drinking Water Supply ✓❑ e. Surface Water (including Storm Drains) ❑ f. Other Describe: B. MONITORING FREQUENCY: 1. Reporting period that is the subject of this submittal: From: 12/1/2005 To: 5/31/2006 (mm/dd/yyyy) (mm/dd/yyyy) 2. Number of monitoring events during the reporting period: (check one) ® a. System Startup: (if applicable) ❑ i. Days 1, 3, 6, and then weekly thereafter, for the first month. ❑ ii. Other Describe: b. Post -system Startup (after first month) or Monitoring Program: ❑ i. Monthly ❑ ii. Quarterly ❑✓ iii. Other Describe: MONTHLY WHEN SYSTEM WAS IN OPERATION r✓ 3. Check here to certify that the number of required monitoring events were conducted during the reporting period. C. EFFLUENTIDISCHARGE REGULATION: (check one to indicate how the effluent/discharge limits were established) 1. NPDES: (check one) ❑ a. Remediation General Permit ✓❑ b. Individual Permit ❑ c. Emergency Exclusion Effective Date of Permit: 8/2/2002 L J 2. MCP Performance Standard MCP Citations(s): C3. DEP Approval Letter Date of Letter: ❑ 4. Other Describe: Revised: 2/9/2005 Page 1 of 3 Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A i CRA REMEDIAL MONITORING REPORT Release Tracking Number. Pursuant to 310 CMR 40.0800 (SUBPART H) �---� 33 - 174 Remedial System or Monitoring Program:1`+ _1 of: D. WASTEWATER TREATMENT PLANT OPERATOR: (check one) Z1. Required due to Remedial Wastewater Treatment Plant in place for more than 30 days. a. Name: LROBERT RICARD b. Grade: 6-C c. License No.: 10524 12/31/2007 d. License Exp. Date: [ '1 2. Not Required (mm/dd/yyyy) 0 3. Not Applicable E. STATUS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM DURING REPORTING PERIOD: (check all that apply) W 1. The Active Remedial System was functional one or more days during the Reporting Period. a. Days System was Fully Functional: 61 b. GW Recovered (gals): 2973600 c. NAPL Recovered (gals): d. GW Discharged (gals): 12973600 e. Avg. Soil Gas Recovery Rate (scfm): 1 _--� ,f. Avg. Sparging Rate (scfm) : I_ 2. Remedial Additives: (check all that apply) a a. No Remedial Additives applied during the Reporting Period. b. Enhanced Bioremediation Additives applied: (total quantity applied at the site for the current reporting period) [] i. Nitrogen/Phosphorus: Q ii. Peroxides: Name of Additive Date Quantity Units Name of Additive Date Quantity Units iii. Microorganisms: ❑ iv. Other. Name of Additive Date Quantity Units Name of Additive Date Quantity Units c. Chemical oxidation/reduction additives applied: (total quantity applied at the site for the current reporting period) i. Permanganates: F1 ii. Peroxides: Name of Additive Date Quantity Units Name of Additive Date Quantity Units 11 iii. Persulfates: Name of Additive Date Quantity Units iv. Other. Name of Additive Date Quantity Units Revised: 2/9/2005 Page 2 of 3 ` n, fMassachusetts Department of Environmental Protection Bureau of Waste Site Cleanup BWSC108A tr CRA REMEDIAL MONITORING REPORT Release Tracking Number Pursuant to 310 CMR 40.0800 (SUBPART H)�— � - 174 --� - Remedial System or Monitoring Program: [4 _—._._1 of:® E. STATUS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM DURING REPORTING PERIOD: (cont.) (check all that apply) d. Other additives applied: (total quantity applied at the site for the current reporting period) Name of Additive Date lQuantity, Units Name of Additive Date lQuantity Units e. Check here if any additional Remedial Additives were applied. Attach list of additional additives and include Name of Additive, Date Applied, Quantity Applied and Units (in gals. or lbs.) F. SHUTDOWNS OF ACTIVE REMEDIAL SYSTEM OR ACTIVE REMEDIAL MONITORING PROGRAM: (check all that apply) 1. The Active Remedial System had unscheduled shutdowns on one or more occasions during the Reporting Period. a. Number of Unscheduled Shutdowns: 3 b. Total Number of Days of Unscheduled Shutdowns: 120 c. Reason(s) for Unscheduled Shutdowns: REPAIR AND REPLACEMENT F WELL PUMPS DOWN WELL PIPING, AND SUBSURFACE WIRING. 2. The Active Remedial System had( scheduled shutdowns on one or more occasions during the Reporting Period. L a. Number of Scheduled Shutdowns: [:== b. Total Number of Days of Scheduled Shutdowns: c. Reason(s) for Scheduled Shutdowns: ® 3. The Active Remedial System or Active Remedial Monitoring Program was permanently shutdown/discontinued during the Reporting Period.. a. Date of Final System or Monitoring Program Shutdown: L]b. No Further Effluent Discharges. (mm/dd/yyyy) c. No Further Application of Remedial Additives planned; sufficient monitoring completed to demonstrate compliance with 310 CMR 40.0046. Qd. No Further Submittals Planned. e. Other: Describe: G. SUMMARY STATEMENTS: (check all that apply for the current reporting period) r-� 1. All Active Remedial System checks and effluent analyses required by the approved plan and/or permit were Fr J performed when applicable. 2. There were no significant problems or prolonged (>25% of reporting period) unscheduled shutdowns of the Active Remedial System. € ;! 3. The Active Remedial System or Active Remedial Monitoring Program operated in conformance with the MCP, and all t� applicable approval conditions and/or permits. 4. Indicate any Operational Problems or Notes: �S EVE RAL REPAIRS TO THE SYSTEM, WHICH WAS CONSTRUCTED IN 1990, WERE REQUIRED DURING THE REPORTING PERIOD. L] 5. Check here if additional/supporting Information, data, maps, and/or sketches are attached to the form. Revised: 2/9/2005 Page 3 of 3 � � n Lj � � � � r Li L E � � � ; r Li E r"I u � /. � Li � � 8 \ a .. \.. � . ) _ ƒ\/z \_ 0 c c k M( 70 co ca / ] /\ / Q) 2 0 u k k k ,u \ 0 k (k F❑ E 00 DO 0 0 00 00 0 000 Ll m =z E =c; m� 0/d2 25 §§ 2 _ 3o 2c coo 0 o �❑ . u § . 5 /0 2 / eff) % Lc c o = 22±\% g E a o m = 2 \ 0 / L. CL / g ? {fie: § C / I + § U- _ •• ) CCL § § w 2 0 $ \ 2 LO § A d.g d W w c \ 3 cec % 2 z \ w § a £§$ q a/ w � I f @ 2 2/ ■\ 0 2 c S 7E $ 2 ui w § 0§ 2 b/ f /\ ! 0 EU E k \ / / \ § / ƒ ¢ OCL L § -0 ° E \ cn Q E) I q I § W D / ƒ j \ w / LLJ Z� \ k Q w ) q o$ g § § 7 } E 7 2 N N » K \ cc) L) 3 w 2ƒ 2 j 7 ##V § I E § \ C 0 \ E 2 } 5 § _ m 2. 0k 0 0. k b R ° � U- 8 \ a APPENDIX B REMEDIATION SYSTEM MONITORING AND INSPECTION LOGS I �y i" Appendix B is located within the accompanying compact disc. n n u n Li n L n �s 4 Li n L, P Li n Li C Lj APPENDIX C ' LABORATORY DATA FOR TREATMENT PLANT PROCESS VAPOR SAMPLES n n L' Appendix C is located within the accompanying compact disc. r� L, r� u C 1' Lj f`1 L I r. n APPENDIX D LABORATORY DATA FOR INDOOR AIR SAMPLES I r) Appendixl) is located within the accompanying compact disc. n n n F) u r n n C APPENDIX E LABORATORY DATA FOR GROUNDWATER SAMPLES n Ly F L' Appendix E is located within the accompanying compact disc. n ._i n Lj C F -I k W APPENDIX F LABORATORY DATA FOR REMEDIATION SYSTEM INFLUENT -AND EFFLUENT SAMPLES r l� n n Appendix F is located within the accompanying compact disc n L In F) I