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HomeMy WebLinkAboutMiscellaneous - 21 HIGH STREET 4/30/2018 (16)t. w Massachusetts Department of Environmental Protection ILIBureau of Resource Protection - Wetlands WPA Form 8B — Certificate of Compliance Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Important: When filling out forms on the computer, use only the tab key to move your cursor -do not use the return key. tab rennn A. Project Information 1. This Certificate of Compliance is issued to: 2. DEP File Number: 949-1499 rrovlaea Dy ucr Civil Design Group, LLC Name 21 High Street, Suite 207 Mailing Address North Andover MA 01845 City/Town State Zip Code This Certificate of Compliance is issued for work regulated by a final Order of Conditions issued to: RCG North Andover Mill, LLC c/o David Steinbergh Name June 12, 2008 242-1422 Dated DEP File Number 3. The project site is located at: 21 High Street Street Address Map 68/59 Assessors Map/Plat Number North Andover City[Town Parcels 1/10 Parcel/Lot Number the final Order of Condition was recorded at the Registry of Deeds for: Property Owner (if different) Essex Northern 11245 120 County Book Page Certificate 4. A site inspection was made in the presence of the applicant, or the applicant's agent, on: 10/2/2015 wpafrm8b.doc • rev. 5/29/14 Date WPA Form 8B, Certificate of Compliance • Page 1 of 3 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands DEP File Number: WPA Form 8B — Certificate of Compliance 242-1422 Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by DEP B. Certification Check all that apply: ® Complete Certification: It is hereby certified that the work regulated by the above -referenced Order of Conditions has been satisfactorily completed. ❑ Partial Certification: It is hereby certified that only the following portions of work regulated by the above -referenced Order of Conditions have been satisfactorily completed. The project areas or work subject to this partial certification that have been completed and are released from this Order are: ❑ Invalid Order of Conditions: It is hereby certified that the work regulated by the above -referenced Order of Conditions never commenced. The Order of Conditions has lapsed and is therefore no longer valid. No future work subject to regulation under the Wetlands Protection Act may commence without filing a new Notice of Intent and receiving a new Order of Conditions. ® Ongoing Conditions: The following conditions of the Order shall continue: (Include any conditions contained in the Final Order, such as maintenance or monitoring that should continue for a longer period). Condition Numbers 82 C. Authorization Issued by: North Andover Conservation Commission /S Date of Is uance This Certificate must be signed by a majority of the Conservation Commission and a copy sent to the applicant and appropriate DEP Regional Office (See wpafrm8b.doc • rev. 5/29/14 WPA Form 8B, Certificate of Compliance • Page 2 of 3 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands DEP File Number: WPA Form 8B — Certificate of Compliance 242-1422 Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by DEP D. Recording Confirmation The applicant is responsible for ensuring that this Certificate of Compliance is recorded in the Registry of Deeds or the Land Court for the district in which the land is located. Detach on dotted line and submit to the Conservation Commission. t6_: ---------------------------------------------------------------------------------------------------- North Andover Conservation Commission Please be advised that the Certificate of Compliance for the project at: 21 High Street 242-1422 Project Location DEP File Number Has been recorded at the Registry of Deeds of: Essex Northern County for: RCG North Andover Mill, LLC c/o David Steinbergh Property Owner and has been noted in the chain of title of the affected property on: Date Book Page If recorded land, the instrument number which identifies this transaction is: If registered land, the document number which identifies this transaction is: Document Number Signature of Applicant wpafrm8b.doc • rev. 5/29/14 WPA Form 8B, Certificate of Compliance • Page 3 of 3 >y_ .A '�i{ Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 5 - Order of Conditions Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 MassDEP File Number: 242-1422 wpaform5.doc • rev. 2/27/06 Page 1 of 10 A. General Information Important: North Andover When filling 1. From. Conservation Commission out forms on the computer, 2. This issuance is for (check one): a. ® Order of Conditions b. ❑ Amended Order of Conditions use only the tab key to 3. To: Applicant: move your cursor - do not David Steinbergh use the return a. First Name b. Last Name key. RCG North Andover Mill LLC c. Organization 17 Ivaloo Street, Suite 100 d.Mailing Address � S Somerville MA 01949 e. City/Town f. State g. Zip Code 4. Property Owner (if different from applicant): a. First Name b. Last Name c. Organization d. Mailing Address e. City/Town f. State g. Zip Code 5. Project Location: 21 High Street North Andover a. Street Address b. City/Town Map 68/69 Parcels 1/10 c. Assessors Map/Plat Number d. Parcel/Lot Number Latitude and Longitude, if known: e. Latitude f. Longitude 6. Property recorded at the Registry of Deeds for (attach additional information if more than one parcel): Essex North a. County b. Certificate Number (if registered land) 10601 340 c. Book d. Page 2/22/08 5/28/08 7. Dates: 6/12/08 a. Date Notice of Intent Filed b. Date Public Hearing Closed c. Date of Issuance 8. Final Approved Plans and Other Documents (attach additional plan or document references as needed): Definitive Plan:Planned Development, Plan of Land a. Plan Title Design Consultants, Inc. David Gian Grande, P. E. b. Prepared By c. Signed and Stamped by 5/13/08 1" = 30' d. Final Revision Date e. Scale f. Additional Plan or Document Title g. Date wpaform5.doc • rev. 2/27/06 Page 1 of 10 ;c s LlMassachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 5 - Order of Conditions Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 B. Findings i. Findings pursuant to the Massachusetts Wetlands Protection Act: MassDEP File Number: 242-1422 Following the review of the above -referenced Notice of Intent and based on the information provided in this application and presented at the public hearing, this Commission finds that the areas in which work is proposed is significant to the following interests of the Wetlands Protection Act. Check all that apply: a. ® Public Water Supply b. ❑ Land Containing Shellfish c. ® Prevention of Pollution d. ® Private Water Supply e. ❑ Fisheries f. ® Protection of Wildlife Habitat g. ® Groundwater Supply h. ® Storm Damage Prevention i. ® Flood Control 2. This Commission hereby finds the project, as proposed, is: (check one of the following boxes) Approved subject to: a. ® the following conditions which are necessary in accordance with the performance standards set forth in the wetlands regulations. This Commission orders that all work shall be performed in accordance with the Notice of Intent referenced above, the following General Conditions, and any other special conditions attached to this Order. To the extent that the following conditions modify or differ from the plans, specifications, or other proposals submitted with the Notice of Intent, these conditions shall control. Denied because: b. ❑ the proposed work cannot be conditioned to meet the performance standards set forth in the wetland regulations. Therefore, work on this project may not go forward unless and until a new Notice of Intent is submitted which provides measures which are adequate to protect these interests, and a final Order of Conditions is issued. A description of the performance standards which the proposed work cannot meet is attached to this Order. c. ❑ the information submitted by the applicant is not sufficient to describe the site, the work, or the effect of the work on the interests identified in the Wetlands Protection Act. Therefore, work on this project may not go forward unless and until a revised Notice of Intent is submitted which provides sufficient information and includes measures which are adequate to protect the Act's interests, and a final Order of Conditions is issued. A description of the specific information which is lacking and why it is necessary is attached to this Order as per 310 CMR 10.05(6)(c). Inland Resource Area Impacts: Check all that apply below. (For Approvals Only) 3. ❑ Buffer Zone Impacts: Shortest distance between limit of project disturbance and wpaform5.doc • rev. 2/27/08 Page 2 of 10 wetland boundary (if available) a. linear feet Resource Area Proposed Permitted Proposed Permitted Alteration Alteration Replacement Replacement 4. ❑ Bank a. linear feet b. linear feet c. linear feet d. linear feet 5. ❑ Bordering Vegetated Wetland a. square feet b. square feet c. square feet d. square feet 6. ❑ Land Under W aterbodies a. square feet b. square feet c. square feet d. square feet and Waterways e. c/y dredged f. c/y dredged wpaform5.doc • rev. 2/27/08 Page 2 of 10 12. ❑ Barrier Beaches Massachusetts Department of Environmental Protection ❑ Coastal Beaches Bureau of Resource Protection - Wetlands MassDEP File Number: WPA Form 5 - Order of Conditions 242-1422 Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Coastal Banks 16. B. Findings (cont.) Rocky Intertidal Shores 17. Resource Area Proposed Permitted Proposed Permitted Alteration Alteration Replacement Replacement 7. ❑ Bordering Land Subject to Flooding a. square feet b. square feet c. square feet d. square feet Cubic Feet Flood Storage e. cubic feet f. cubic feet g. cubic feet h. cubic feet 8. ❑ Isolated Land Subject to Flooding a. square feet b. square feet Cubic Feet Flood Storage c. cubic feet d. cubic feet e. cubic feet f. cubic feet 9. ❑ RlVerfrOnt area a. total sq. feet b. total sq. feet Sq ft within 100 ft c. square feet d. square feet e. square feet f. square feet Sq ft between 100-200 ft g. square feet h. square feet i. square feet j. square feet Coastal Resource Area Impacts: Check all that apply below. (For Approvals Only) 1o. ❑ Designated Port Areas Indicate size under Land Under the Ocean, below 11. ❑ Land Under the Ocean a. square feet b. square feet 12. ❑ Barrier Beaches 13. ❑ Coastal Beaches 14. ❑ Coastal Dunes 15. ❑ Coastal Banks 16. ❑ Rocky Intertidal Shores 17. ❑ Salt Marshes 18. ❑ Land Under Salt Ponds 19. ❑ Land Containing Shellfish 20. ❑ Fish Runs 21. "❑ Land Subject to Coastal Storm Flowage Indicate size under Coastal Beaches and/or Coastal Dunes below a. square feet b. square feet c. c/y nourishmt. d. c/y nourishmt. a. square feet b. square feet c. c/y nourishmt. d. c/y nourishmt. a. linear feet b. linear feet a. square feet a. square feet b. square feet b. square feet d. c/y dredged Indicate size under Coastal Banks, inland Bank, Land Under the Ocean, and/or inland Land Under Waterbodies and Waterways, above a. c/y dredged b. c/y dredged a. square feet b. square feet wpaform5.doc • rev. 2/27/08 Page 3 of 10 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands MassDEP File Number: WPA Form 5 - Order of Conditions 242-1422 Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 C. General Conditions Under Massachusetts Wetlands Protection Act (only applicable to approved projects) 1. Failure to comply with all conditions stated herein, and with all related statutes and other regulatory measures, shall be deemed cause to revoke or modify this Order. 2. The Order does not grant any property rights or any exclusive privileges; it does not authorize any injury to private property or invasion of private rights. 3. This Order does not relieve the permittee or any other person of the necessity of complying with all other applicable federal, state, or local statutes, ordinances, bylaws, or regulations. 4. The work authorized hereunder shall be completed within three years from the date of this Order unless either of the following apply: a. the work is a maintenance dredging project as provided for in the Act; or b. the time for completion has been extended to a specified date more than three years, but less than five years, from the date of issuance. If this Order is intended to be valid for more than three years, the extension date and the special circumstances warranting the extended time period are set forth as a special condition in this Order. 5. This Order may be extended by the issuing authority for one or more periods of up to three years each upon application to the issuing authority at least 30 days prior to the expiration date of the Order. 6. Any fill used in connection with this project shall be clean fill. Any fill shall contain no trash, refuse, rubbish, or debris, including but not limited to lumber, bricks, plaster, wire, lath, paper, cardboard, pipe, tires, ashes, refrigerators, motor vehicles, or parts of any of the foregoing. 7. This Order is not final until all administrative appeal periods from this Order have elapsed, or if such an appeal has been taken, until all proceedings before the Department have been completed. 8. No work shall be undertaken until the Order has become final and then has been recorded in the Registry of Deeds or the Land Court for the district in which the land is located, within the chain of title of the affected property. In the case of recorded land, the Final Order shall also be noted in the Registry's Grantor Index under the name of the owner of the land upon which the proposed work is to be done. In the case of the registered land, the Final Order shall also be noted on the Land Court Certificate of Title of the owner of the land upon which the proposed work is done. The recording information shall be submitted to this Conservation Commission on the form at the end of this Order, which form must be stamped by the Registry of Deeds, prior to the commencement of work. 9. A sign shall be displayed at the site not less then two square feet or more than three square feet in size bearing the words, "Massachusetts Department of Environmental Protection" [or, "MassDEP"] "File Number 242-1422 wpaform5.doc • rev. 2/27/08 Page 4 of 10 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 5 - Order of Conditions Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 MassDEP File Number: 242-1422 C. General Conditions Under Massachusetts Wetlands Protection Act 10. Where the Department of Environmental Protection is requested to issue a Superseding Order, the Conservation Commission shall be a party to all agency proceedings and hearings before MassDEP. 11. Upon completion of the work described herein, the applicant shall submit a Request for Certificate of Compliance (WPA Form 8A) to the Conservation Commission. 12. The work shall conform to the plans and special conditions referenced in this order. 13. Any change to the plans identified in Condition #12 above shall require the applicant to inquire of the Conservation Commission in writing whether the change is significant enough to require the filing of a new Notice of Intent. 14. The Agent or members of the Conservation Commission and the Department of Environmental Protection shall have the right to enter and inspect the area subject to this Order at reasonable hours to evaluate compliance with the conditions stated in this Order, and may require the submittal of any data deemed necessary by the Conservation Commission or Department for that evaluation. 15. This Order of Conditions shall apply to any successor in interest or successor in control of the property subject to this Order and to any contractor or other person performing work conditioned by this Order. 16. Prior to the start of work, and if the project involves work adjacent to a Bordering Vegetated Wetland, the boundary of the wetland in the vicinity of the proposed work area shall be marked by wooden stakes or flagging. Once in place, the wetland boundary markers shall be maintained until a Certificate of Compliance has been issued by the Conservation Commission. 17. All sedimentation barriers shall be maintained in good repair until all disturbed areas have been fully stabilized with vegetation or other means. At no time shall sediments be deposited in a wetland or water body. During construction, the applicant or his/her designee shall inspect the erosion controls on a daily basis and shall remove accumulated sediments as needed. The applicant shall immediately control any erosion problems that occur at the site and shall also immediately notify the Conservation Commission, which reserves the right to require additional erosion and/or damage prevention controls it may deem necessary. Sedimentation barriers shall serve as the limit of work unless another limit of work line has been approved by this Order. 18. The work associated with this Order is (1) ❑ is not (2) ® subject to the Massachusetts Stormwater Policy Standards. If the work is subject to the Stormwater Policy, the following conditions apply to this work and are incorporated into this Order: a) No work, including site preparation, land disturbance, construction and redevelopment, shall commence unless and until the construction period pollution prevention and erosion and sedimentation control plan required by Stormwater Standard 8 is approved in writing by the issuing authority. Until the site is fully stabilized, construction period erosion, sedimentation and pollution control measures and best management practices (BMPs) shall be implemented in accordance with the construction period pollution prevention and erosion and sedimentation control plan, and if applicable, the Stormwater Pollution Plan required by the National Discharge Elimination System Construction General Permit. wpaform5.doc • rev. 2/27/08 Page 5 of 10 LlMassachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands I WPA Form 5 - Order of Conditions Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 MassDEP File Number: 242-1422 C. General Conditions Under Massachusetts Wetlands Protection Act (cont.) b) No stormwater runoff may be discharged to the post -construction stormwater BMPs until written approval is received from the issuing authority. To request written approval, the following must be submitted: illicit discharge compliance statement required by Stormwater Standard 10 and as -built plans signed and stamped by a registered professional engineer certifying the site is fully stabilized; all construction period stormwater BMPs and any illicit discharges to the stormwater management system have been removed; and all post -construction stormwater BMPs were installed in accordance with the plans (including all planting plans)approved by the,issuing authority, and have been inspected to ensure they are not damaged and will function properly. c) Prior to requesting a Certificate of Compliance, the responsible party (defined in General Condition 18(e)) shall submit to the issuing authority an Operation and Maintenance (O & M) Compliance Statement for the Stormwater BMPs. This Statement shall identify the responsible party for implementing the Operation and Maintenance Plan and also state that: 1. "Future responsible parties shall be notified in writing of their continuing legal responsibility to operate and maintain the stormwater management BMPs and implement the Pollution Prevention Plan; and 2. The Operation and Maintenance Plan for the stormwater BMPs is complete and will be implemented upon receipt of the Certificate." d) Post -construction pollution prevention and source control shall be implemented in accordance with the long-term pollution prevention plan section of the approved Stormwater Report and, if applicable, the Stormwater Pollution Prevention Plan required by the National Discharge Elimination System Multi -Sector General Permit. e) Unless and until another party accepts responsibility, the issuing authority shall presume that the responsible party for maintaining each BMP is the landowner of the property on which the BMP is located. To overcome this presumption, the landowner of the property must submit to the issuing authority a legally binding agreement acceptable to the issuing authority evidencing that another entity has accepted responsibility for maintaining the BMP, and that the proposed responsible party shall be treated as a permittee for purposes of implementing the requirements of Conditions 18(f) through 18(k) with respect to that BMP. Any failure of the proposed responsible party to implement the requirements of Conditions 18(f) through 18(k) with respect to that BMP shall be a violation of the Order of Conditions or Certificate of Compliance. In the case of stormwater BMPs that are serving more than one lot, the legally binding agreement shall also identify the lots that will be serviced by the stormwater BMPs. A plan and easement deed that grants the responsible party access to perform the required operation and maintenance must be submitted along with the legally binding agreement. f) The responsible party shall operate and maintain all stormwater BMPs in accordance with the design plans, the Operation and Maintenance Plan section of the approved Stormwater Report, and the Massachusetts Stormwater Handbook. g) The responsible party shall: 1. Maintain an operation and maintenance log for the last three years including inspections, repairs, replacement and disposal (for disposal the log shall indicate the type of material and the disposal location); 2. Make this log available to MassDEP and the Conservation Commission upon request; and 3. Allow members and agents of the MassDEP and the Conservation Commission to enter and inspect the premises to evaluate and ensure that the responsible party complies with the Operation and Maintenance requirements for each BMP set forth in the Operations and Maintenance Plan approved by the issuing authority. h) All sediments or other contaminants removed from stormwater BMPs shall be disposed of in accordance with all applicable federal, state, and local laws and regulations. i) Illicit discharges to the stormwater management system as defined in 310 CMR 10.04 are prohibited. wpaform5.doc • rev. 2/27/08 Page 6 of 10 7 f - Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 5 - Order of Conditions Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 MassDEP File Number: 242-1422 C. General Conditions Under Massachusetts Wetlands Protection Act (cont.) j) The stormwater management system approved in the Final Order of Conditions shall not be changed without the prior written approval of the issuing authority. Areas designated as qualifying pervious areas for purpose of the Low Impact Site Design Credit shall not be altered without the prior written approval of the issuing authority. k) Access for maintenance of stormwater BMPs shall not be obstructed or blocked. Any fencing constructed around stormwater BMPs shall include access gates. Fence(s) shall be at least six inches above grade to allow for wildlife passage. Special Conditions (if you need more space for additional conditions, please attach a text document) D. Findings Under Municipal Wetlands Bylaw or Ordinance 1. Is a municipal wetlands bylaw or ordinance applicable? ® Yes ❑ No 2. The North Andover hereby finds (check one that applies): Conservation Commission a. ❑ that the proposed work cannot be conditioned to meet the standards set forth in a municipal ordinance or bylaw specifically: 1. Municipal Ordinance or Bylaw 2. Citation Therefore, work on this project may not go forward unless and until a revised Notice of Intent is submitted which provides measures which are adequate to meet these standards, and a final Order of Conditions is issued. b. ® that the following additional conditions are necessary to comply with a municipal ordinance or bylaw: North Andover Wetland Protection Bylaw Chapter 178 1. Municipal Ordinance or Bylaw 2. Citation 3. The Commission orders that all work shall be performed in accordance with the following conditions and with the Notice of Intent referenced above. To the extent that the following conditions modify or differ from the plans, specifications, or other proposals submitted with the Notice of Intent, the conditions shall control. The special conditions relating to municipal ordinance or bylaw are as follows (if you need more space for additional conditions, attach a text document): See attached wpaform5.doc • rev. 2/27/08 Page 7 of 10 DEP FILE # 242 - 1422 Therefore, the North Andover Conservation Commission (hereafter the "NACC") hereby finds that the following conditions are necessary, in accordance with the Performance Standards set forth in the State Regulations, the local Bylaw and Regulations, to protect those interests noted above. The NACC orders that all work shall be performed in accordance with said conditions and with the Notice of Intent referenced below. To the extent that the following conditions modify or differ from the plans, specifications or other proposals submitted with the Notice of Intent, the conditions shall control. GENERAL CONDITIONS 18. Failure to comply with all conditions stated herein, and with all related statutes and other regulatory measures, shall be deemed cause to revoke or modify this Order. 19. This Order does not grant any property rights or any exclusive privileges; it does not authorize any injury to private property or invasion of property rights. However, the NACC, agent of the NACC or the Department of Environmental Protection (DEP) reserves the right to enter and inspect the property at all reasonable times until a Certificate of Compliance is issued, to evaluate compliance with this Order of Conditions, the Act (310 CMR 10.00), the North Andover Wetland Bylaw and Regulations, and may require any information, measurements, photographs, observations, and/or materials, or may require the submittal of any data or information deemed necessary by the NACC for that evaluation. Further, work shall be halted on the site if the NACC, agent or DEP determines that any of the work is not in compliance with this Order of Conditions. Work shall not resume until the NACC is satisfied that the work will comply and has so notified the applicant in writing. 20. This Order does not relieve the permittee or any other person of the necessity of complying with all other applicable federal, state or local statutes, ordinances, by-laws or regulations. 21. The work authorized hereunder shall be completed within three years from the date of this order. 22. This Order may be extended by the issuing authority for one or more periods of up to one year each upon application to the issuing authority at least thirty days (30) prior to the expiration date of the Order (Refer to Section 8.3 (p.37) of the North Andover Wetland Regulations). 23. The NACC reserves the right to amend this Order of Conditions after a legally advertised public hearing if plans or circumstances are changed or if new conditions or information so warrant. 24. Where the Department of Environmental Protection (DEP) is requested to make a determination and to issue a Superseding Order, the Conservation Commission shall be a party to all agency proceedings and hearings before the Department. C:\Winword\00C\350HoltRd.doc 1 NACC 6/11/2008 DEP FILE # 242 - 1422 Therefore, the North Andover Conservation Commission (hereafter the "NACC") hereby finds that the following conditions are necessary, in accordance with the Performance Standards set forth in the State Regulations, the local Bylaw and Regulations, to protect those interests noted above. The NACC orders that all work shall be performed in accordance with said conditions and with the Notice of Intent referenced below. To the extent that the following conditions modify or differ from the plans, specifications or other proposals submitted with the Notice of Intent, the conditions shall control. GENERAL CONDITIONS 18. Failure to comply with all conditions stated herein, and with all related statutes and other regulatory measures, shall be deemed cause to revoke or modify this Order. 19. This Order does not grant any property rights or any exclusive privileges; it does not authorize any injury to private property or invasion of property rights. However, the NACC, agent of the NACC or the Department of Environmental Protection (DEP) reserves the right to enter and inspect the property at all reasonable times until a Certificate of Compliance is issued, to evaluate compliance with this Order of Conditions, the Act (310 CMR 10.00), the North Andover Wetland Bylaw and Regulations, and may require any information, measurements, photographs, observations, and/or materials, or may require the submittal of any data or information deemed necessary by the NACC for that evaluation. Further, work shall be halted on the site if the NACC, agent or DEP determines that any of the work is not in compliance with this Order of Conditions. Work shall not resume until the NACC is satisfied that the work will comply and has so notified the applicant in writing. 20. This Order does not relieve the permittee or any other person of the necessity of complying with all other applicable federal, state or local statutes, ordinances, by-laws or regulations. 21. The work authorized hereunder shall be completed within three years from the date of this order. 22. This Order may be extended by the issuing authority for one or more periods of up to one year each upon application to the issuing authority at least thirty days (30) prior to the expiration date of the Order (Refer to Section 8.3 (p.37) of the North Andover Wetland Regulations). 23. The NACC reserves the right to amend this Order of Conditions after a legally advertised public hearing if plans or circumstances are changed or if new conditions or information so warrant. 24. Where the Department of Environmental Protection (DEP) is requested to make a determination and to issue a Superseding Order, the Conservation Commission shall be a party to all agency proceedings and hearings before the Department. CAW nword\OOC\35Mol Md. doc I NACC 6/12/2008 DEP FILE # 242 -1422 25. This Order of Conditions is issued under File No. 242-1422. 26. The conditions of this decision shall apply to, and be binding upon, the applicant, owner, its employees and all successors and assigns in interest or control. These obligations shall be expressed in covenants in all deeds to succeeding owners of portions of the property. 27. The term "Applicant" as used in this Order of Conditions shall refer to the owner, any successor in interest or successor in control of the property referenced in the Notice of Intent, supporting documents and this Order of Conditions. The NACC shall be notified in writing within 30 days of all transfers of title of any portion of property that takes place prior to the issuance of a Certificate of Compliance. 28. The proposed work includes: Activities within the resource areas include parking lot expansion, construction of a pond outlet structure and water intake pipe for possible electricity generation and landscaping improvement. 29. The work shall conform to the following: Notice of Intent filed by: RCG North Andover Mill, LLC (Applicant) 17 Ivaloo Street, Suite 100 Somerville, MA 01849 Prepared by: Epsilon Associates, Inc. (Representative) 3 Clock Tower Place, Suite 250 Maynard, MA 01754 Site Plans prepared by: Design Consultants, Inc. 265 Medford Street Somerville, MA 02143 Entitled "Submission of Definitive Plan Phase IIA", revised 5/13/08, stamped by David Gian Grande, PE Other Record Plans & Documents: Drainage Report for East Mill Phase 11A, prepared by Design Consultants, Inc., revised 5/14/08; Resolution Report for East Mill Phase 2A, prepared by Design Consultants, Inc., dated 4/25/08; Response to Comments on 21 High Street, prepared by Epsilon Associates, Inc., dated 5/14/08 30. The following wetland resource areas are affected by the proposed work: Bordering Vegetated Wetland and Bank, and Land Under Water Bodies and Waterways. This resource area is significant to the interests of the Act and Town ByLaw as noted above CAWinword\00C\350HoltRd.doc 2 NACC 6/12/2008 DEP FILE # 242 - 1422 and therein. The applicant has not attempted to overcome the presumption of significance of these resource areas to the identified interests. 31. The NACC agrees with the applicant's delineation of the wetland resource area and as depicted on the approved plans referenced herein. 32. This document shall be included in all construction contracts, subcontracts, and specifications dealing with the work proposed and shall supersede any conflicting contract requirements. The applicant shall assure that all contractors, subcontractors, and other personnel performing the permitting work are fully aware of the permits terms and conditions. Thereafter, the contractor will be held jointly liable for any violation of this Order resulting from failure to comply with its conditions. 33. The owners of the project and their successors in title, in the event they proceed to alter areas subject to the Commission's jurisdiction under the order, agree that the Order does not in itself impose upon the Town any responsibility to maintain the proposed drainage system and that said Town shall not be liable for any damage in the event of failure. By acceptance of this Order, the owners agree to indemnify and hold harmless to the Town and its residents for any damage attributable to alterations undertaken on this property pursuant to the Order. Maintenance of the drainage system, if accepted by the Town as part of a public way, becomes the responsibility of the Town. 34. Issuance of these Conditions does not in any way imply or certify that the site or downstream areas will not be subject to flooding, storm damage or any other form of water damage. PRIOR TO CONSTRUCTION 35. No work shall be undertaken until all administrative appeal periods from this Order have elapsed or, if such an appeal has been filed, until all proceedings before the Department or Court have been completed. 36. This Order shall be recorded by the applicant at the Registry of Deeds immediately after the expiration of all appeal periods. No work shall be undertaken until the Final Order has been recorded in the Registry of Deeds or the Land Court for the district in which the land is located, within the chain of title of the affected property. In the case of recorded land, the Final Order shall also be noted in the Registry's Grantor Index under the name of the owner of the land upon which the proposed work is to be done. In the case of registered land, the Final Order shall also be noted on the Land Court Certificate of Title of the owner of the land upon which the proposed work is to be done. The recording information shall be submitted to the North Andover Conservation Commission on the form at the end of this Order prior to commencement of the work. Any Order not recorded by the applicant before work commences may be recorded by the NACC at the applicant's expense. C:\Winword\OOC\350HoltRd.doe 3 NACC 6/12/2008 DEP FILE # 242 -1422 37. A sign shall be displayed at the site not less than two square feet or more than three square feet in size bearing the words "Massachusetts DEP, File Number 242-1422." 38. Any changes in the submitted plans caused by the applicant, another Board's decision or resulting from this Order of Conditions must be submitted to the NACC for approval prior to implementation. If the NACC finds said changes to be significant, the NACC will call for another public hearing (at the expense of the applicant). Within 21 days of the close of said public hearing the NACC will issue an amended or new Order of Conditions. Any errors found in the plans or information submitted by the applicant shall be considered as changes. The proposed project may be still under review by other local or state boards or agencies. This may result in changes to the project plans or wetland impacts. If any such changes occur a revised plan and an explanation of the revisions shall be submitted to the NACC for review and approval prior to the start of construction. No work shall begin on a project until written approval has been granted by the NACC. 39. It is the responsibility of the applicant, owner, and/or successor(s) to ensure that all conditions of this Order of Conditions are complied with. The project engineer and contractors are to be provided with a copy of this Order of Conditions and referenced documents before commencement of construction. 40. Prior to any work commencing on-site, the applicant shall submit to the NACC for approval, a detailed sequence of construction, including the construction of compensation and retention areas, installation of sedimentation/erosion control devices and re -vegetation to be completed before other work begins on-site. 41. Wetland flagging shall be checked prior to start of construction and shall be re- established where missing. All wetland flagging shall remain visible and enumerated per the approved plan(s) throughout the life of the project and until a Certificate of Compliance is -issued so that erosion control measures can be properly placed and wetland impacts can be monitored. The proposed limit of work shall be shall be clearly marked with stakes or flags and shall be confirmed by the NACC. Such markers shall be checked and replaced as necessary and shall be maintained until all construction is complete. Workers should be informed that no use of machinery, storage of machinery or materials, stockpiling of soil, or construction activity is to occur beyond this line at any time. All flags used for the above purposes shall be of a color different from other flagging used on the site. 42. A row of staked hay bales backed by trenched siltation fence shall be placed between all construction areas and resource areas. The erosion control barrier will be properly installed and placed as shown on the plans approved and referenced herein and shall be inspected and approved by the NACC prior to the start of construction and shall remain intact until all disturbed areas have been permanently stabilized to prevent erosion. All erosion prevention and sedimentation protection measures found necessary during construction` shall be implemented at the direction of the NACC. The NACC reserves the right to impose additional conditions on portions of this project to mitigate any impacts C:\Winword\00C\350HoltRd.doc 4 NACC 6/11/2008 DEP FILE # 242 -1422 which could result from site erosion, or any noticeable degradation of surface water quality discharging from the site. For example, installation of erosion control measures may be required in areas not shown on the plan(s) referenced in this Order of Conditions. Should such installation be required by the NACC, they shall be installed within 48 hours of the Commissions request. 43. The applicant shall have on hand at the start of any soil disturbance, removal or stockpiling, a minimum of 30 hay bales and sufficient stakes for staking these bales (or an equivalent amount of silt fence). Said bales shall be used only for the control of emergency erosion problems and shall not be used for the normal control of erosion. All additional emergency erosion controls shall be on site prior to the commencement of any work on site and will be verified by the Conservation Department during the pre - construction meeting. 44. A check payable to the Town of North Andover shall be provided in the amount of $20,000, which shall be in all respects satisfactory to Town Counsel, Town Treasurer, and the NACC, and shall be posted with the North Andover Town Treasurer through the NACC before commencement of work. Said deposit of money shall be conditioned on the completion of all conditions hereof, shall be signed by a party or parties satisfactory to the NACC, and Town Counsel, and shall be released after completion of the project, provided that provisions, satisfactory to the NACC, have been made for performance of any conditions which are of continuing nature. The applicant may propose a monetary release schedule keyed to completion of specific portions of the project for the NACC's review and approval. This condition is issued under the authority of the local Bylaw. 45. The applicant shall designate a Qualified Professional Wetland Scientist as an "Erosion Control Monitor" to oversee any emergency placement of controls and regular inspection or replacement of sedimentation control devices. The name and phone number of the erosion control monitor must be provided to the NACC in the event that this person has to be contacted, due to an emergency at the site, during any 24-hour period, including weekends. Proof of the retained monitor must be submitted to the Conservation Department on letterhead by the retained consulting firm for subsequent review and approval by the NACC or agent thereof. This person shall be given the authority to stop construction for erosion control purposes. The erosion control monitor will be required to inspect all such devices and oversee cleaning and the proper disposal of waste products. Cleaning shall include removal of any entrapped silt. 46. ON EVERY MONDAY of each week, or otherwise arranged by the NACC, in which construction activities occurs on-site and for as long thereafter as ground remains unstable, it is the applicant's responsibility to ensure that the Environmental/ Erosion Control Monitor (EMC) monitor the site and submit written reports to the NACC. The EMC shall certify that, to the best of his/ her knowledge and belief based on a careful site inspection, all work is being performed in compliance with this Order of Conditions and that approved setbacks are being adhered to. The EMC must visually inspect all sedimentation/ erosion control measures and assume responsibility for their maintenance on a weekly basis and that they are functioning as intended. In addition, C:\Winword\00C\350HoltRd.doc 5 NACC 6/11/2008 DEP FILE # 242 - 1422 all wetland resource areas must be visually inspected for siltation, turbidity, and/or other water quality impacts. Monitoring reports shall include current condition of erosion and sedimentation controls; describe any erosion or sedimentation repair and/ or replacement; and describe any erosion or sedimentation problems and mitigation measures implemented. Such reports shall continue until the applicant requests a less frequent reporting schedule or an end to reports. This request must be submitted in writing and is subject to approval by the Conservation Administrator. 47. The applicant and/or the legal owner of that portion of land upon which these Orders of Conditions have been placed shall provide to the NACC prior to transferring, or assigning any portion of said land to another party, subject to said Orders of Conditions, the "Compliance Certification Form Affidavit" attached via "Appendix A" signed under the pains and penalties of perjury, stating that said applicant and/or owner has read these Orders of Conditions and is in compliance with each and every condition. This document shall apply to each of the conditions referenced herein and shall be provided to the Conservation Department at least five (5) business days after to the closing of said land transaction. 48. Once these above mentioned pre -construction requirements are complete, the applicant shall contact the Conservation Office prior to site preparation or construction and shall arrange an on-site conference with an NACC representative, the contractor, the engineer, wetland scientist and the applicant to ensure that all of the Conditions of this Order are understood. This Order shall be included in all construction contracts, subcontracts, and specifications dealing with the work proposed and shall supersede any conflicting contract requirements. The applicant shall assure that all contractors, subcontractors and other personnel performing the permitted work are fully aware of the permit's terms and conditions. Thereafter, the contractor will be held jointly liable for any violation of this Order of Conditions resulting from failure to comply with its conditions. The applicant or contractor shall notify the NACC in writing of the identity of the on-site construction supervisor hired to coordinate construction and to ensure compliance with this Order. A reasonable period of time shall be provided as notice for each pre - construction meeting (e.g. 72 hours). STORMWATER MANAGEMENT CONDITIONS 49. All construction and post -construction stormwater management systems shall be constructed in accordance with the approved construction sequence, supporting documents and plans submitted with the Notice of Intent, the Department of Environmental Protection Stormwater Management Policy, and the approved Operation and Maintenance Plan dated May 14,::'2008 attached herein. 50. Evidence of maintenance of the stormwater management system shall be provided to the NACC on an annual basis by a Registered Professional Civil Engineer. The first report shall be submitted to the NACC one year after the first stormwater structure C:\Winword\00C\350HoltRd.doc 6 NACC 6/11/2008 DEP FILE # 242 - 1422 goes on-line and annual reports must continue to be submitted until a Certificate of Compliance is issued. Compliance with the designed stormwater management system and associated stormwater management conditions shall be satisfied prior to the issuance of a Certificate of Compliance. 51. All drainage structures shall be properly installed and functional. During construction, all drainage structures shall be maintained, as outlined in the approved Operation and Maintenance Plan dated May 14, 2008 attached herein. 52. Temporary and/or permanent basins being used for sedimentation and dewatering during construction shall be cleaned of sediment when levels exceed six (6) inches. The basins shall be cleaned of sediment prior to final grading and construction of permanent stormwater basins. 53. There shall be no increase in the post development discharges from the storm drainage system or any other changes in post development conditions that alter the post development watershed boundaries as currently depicted in the Notice of Intent and approved by this Order of Conditions, unless specifically approved in writing by the Commission. 54. Water quality down gradient of the site shall not differ significantly following completion of the project from the pre -development conditions. There shall be no sedimentation into wetlands or water bodies from discharge pipes or surface runoff leaving'the site. 55. Prior to the issuance of the Certificate of Compliance, the applicant shall be responsible for cleaning all stormwater structures, in accordance with the approved Operation & Maintenance Plan dated May 14, 2008 attached herein and the associated stormwater management conditions referenced herein. 56. The applicants, owners, and their successors and assignees, shall maintain all culverts, collections basins, traps, outlet structures, subsurface storage areas, and other elements of the drainage system, unless put into an easement to the Town of North Andover, in order to avoid blockages and siltation which might cause failure of the system and/or detrimental impacts to on-site or off-site resource areas, and shall maintain the integrity of vegetative cover on the site. DURING CONSTRUCTION 59. Accepted engineering and Best Management Practices (BMPs) for construction standards shall be followed in the conduct of all work. 60. Erosion control devices shall be inspected regularly; any entrapped silt shall be removed to an area outside of the buffer zone and wetland resource areas; silt fence and hay bales shall be replaced as necessary. The areas of construction shall remain in stable condition at C:\Winword\00C\350HoltRd.doc 7 NACC 6/11/2008 DEP FILE # 242 - 1422 the close of each construction day. All erosion controls shall be in place throughout the duration of any construction on site or unless authorized by the Conservation personnel. 61. Upon beginning work, the applicant shall submit written progress reports every week detailing what work has been done in or near resource areas, and what work is anticipated to be done over the next period. This will update the construction sequence. 62. All catch basins shall contain oil/ gasoline traps, and it shall be a continuing condition of this order, even after a Certificate of Compliance is issued, that the oil/ gasoline traps in the catch basins be maintained. All catch basins shall be free of all accumulated silt and debris before Compliance is issued and the owner or his/her agent shall so specify in the request for Compliance. 63. The sewer lines on the site, where they cross wetland resource areas, shall be tested for water tightness in accordance with North Andover DPW standards. 64.. The Erosion Control Monitor shall be on site during and/or following a major storm event of 1 inch of rain or greater to ensure that soils remain stable, erosion controls are adequate and secure, and that all BMP's are adequately functioning. 65.Approved de -watering activities anticipated shall be supervised and witnessed by the designated erosion control monitor. This designee must be on-site each day that dewatering is occurrin&. De -watering activities shall be conducted as shown on the approved plans and shall be monitored daily by the erosion control monitor to ensure that sediment laden water is appropriately settled prior to discharge toward the wetland resource areas. No discharge of water is allowed directly into an area subject to jurisdiction of the Wetlands Protection Act and/or the North Andover Wetland Bylaw. If emergency de- watering requirements arise, the applicant shall submit a contingency plan to the Commission for approval, which provides for the pumped water to be contained in a settling basin, to reduce turbidity prior to discharge into a resource area. 66. Associated pavement and roadways shall be swept at least once per week or as directed by the Erosion Control monitor, the Site Supervisor, Project Manager, or the Conservation staff for as long as the site remains exposed and unstabilized. 67. Any fill used in connection with this project shall be clean fill, containing no trash, refuse, rubbish or debris, including but not limited to lumber, bricks, plaster, wire, lath, paper, cardboard, pipe, tires, ashes, refrigerators, motor vehicles or parts on any of the foregoing. 68. All exposed soil finish grade surfaces shall be immediately landscaped and stabilized, or loamed, seeded and mulched, with a layer of mulch hay. All disturbed areas must be graded, loamed and seeded prior to October 15th of each year. Outside of the growing season, exposed soil finish grade surfaces shall be stabilized with a layer of mulch hay until climate conditions allow for seeding. During construction, any area of exposed soils that will be left idle for more than 30 days shall be stabilized with a layer of mulch hay or other means approved by the NACC. C:\Winword\00C\350HoltRd.doc 8 NACC 6/11/2008 DEP FILE # 242 - 1422 69. No re -grading in the buffer zone shall have a slope steeper than 2:1 (horizontal: vertical). Slopes of steeper grade shall be rip -rapped to provide permanent stabilization. 70. There shall be no stockpiling of soil or other materials within twenty-five (25) feet of any resource area. 71. Washings from concrete trucks, or surplus concrete, shall not be directed to, any drainage system, or wetland resource area. 72. All waste generated by, or associated with, the construction activity shall be contained within the construction area, and away from any wetland resource area. There shall be no burying of spent construction materials or disposal of waste on the site by any other means. The applicant shall maintain dumpsters (or other suitable means) at the site for the storage and removal of such spent construction materials off-site. 73. During and after work on this project, there shall be no discharge or spillage of fuel, or other pollutants into any wetland resource area. If there is a spill or discharge of any pollutant during any phase of construction the NACC shall be notified by the applicant within one (1) business day. No construction vehicles are to be stored within 100 feet of wetland resource areas, and no vehicle refueling, equipment lubrication, or maintenance is to be done within 100 feet of a resource area. "FAFTERCONSTRUCTION 74. No underground storage of fuel oils shall be allowed on any lot within one hundred (100) feet of any wetland resource area. This condition shall survive this Order of Conditions and shall run with the title of the property. This condition is issued under the authority of the Town's Wetland protection Bylaw. 75. Fertilizers utilized for landscaping and lawn care shall be slow release, low -nitrogen types (< 5%), and shall not be used within 25 feet of a resource area. Pesticides and herbicides shall not be used within 100 feet of a wetland resource area. This condition shall survive this Order of Conditions and shall run with the title of the property. This condition is issued under the authority of the Town's Wetland Protection Bylaw and shall remain in perpetuity. 76. There shall be no dumping of leaves, grass clippings, brush, trash or other debris within the wetland resource area. This condition shall survive the expiration of this Order and shall survive in perpetuity. 77. The approved Operation & Maintenance Plan is fully binding upon the applicant and/or owners, successors, agents, associations, heirs and assigns and must be adhered to in perpetuity. C:\Winword\00C\350HoltRd.doc 9 NACC 6/11/2008 DEP FILE # 242 - 1422 78. Prior to the issuance of a Certificate of Compliance, the applicant shall submit an Affidavit from the assignee (s) acknowledging the Operation & Maintenance responsibilities of the stormwater management systems in accordance with the approved Operation & Maintenance Plan and other perpetual conditions mandated in this Order. 79. Upon completion of construction and grading, all disturbed areas located outside resource areas shall be stabilized permanently against erosion. This shall be done either by loaming and seeding according to SCS standards. If the latter course is chosen, stabilization will be considered complete once vegetative cover has been achieved. 80. Upon approved site stabilization by Conservation staff, the erosion controls shall be removed and properly disposed of and all exposed unvegetated areas shall be seeded. . 81. Upon completion of the project the applicant shall submit the following to the Conservation Commission as part of a request for a Certificate of Compliance: a. WPA Form 8A - "Request for a Certificate of Compliance." b. A letter from the applicant requesting a Certificate of Compliance. c. The name and address of the current landowner. d. Signed statements from the individual property owners shall be submitted with the request for a Certificate of Compliance indicating that they read and understood the recorded Order of Conditions prior to purchasing their property. e. The name and address of the individual/ trust or corporation to whom the compliance is to be granted. f. The street address and assessor's map/ parcel number for the project. g. The DEP file number. h. A written statement from a Registered Professional Civil Engineer (and/or Registered Professional Land Surveyor) of the Commonwealth certifying that the work has been conducted as shown on the plan(s) and documents referenced above, and as conditioned by the Commission. i. An "As -Built" plan prepared and signed and stamped by a Registered Professional Civil Engineer (and/or Registered Professional Land Surveyor) of the Commonwealth, for the public record. This plan will include: ➢ "As -Built" post -development elevations of all drainage & stormwater management structures constructed within 100 feet of any wetland resource area. NOTE: If portions of the stormwater systems exist partially within the Buffer Zone than the entire structure must be depicted to accurately verify compliance. ➢ "As -Built" post -development elevations and grades of all filled or altered wetland resource areas including the encompassing buffer zone, which is regulated as a resource area under the local Wetland Protection Bylaw. C:\Winword\00C\350HoltRd.doc 10 NACC 6/11/2008 DEP FILE # 242 - 1422 ➢ Distances from structures to wetland resource areas. Structures include (but are not limited to) septic systems, additions, fences, sheds, stone walls, pools, retaining walls, subsurface utilities and decks. ➢ A line showing the limit of work and the extent of existing erosion control devices. "Work" includes anv disturbance of soils or vegetation. ➢ Location of all subsurface utilities entering the property. 82. The following special conditions shall survive the issuance of a Certificate of Compliance (COC) for this project: ➢ Discharge or spillage of pollutants (Condition #73); ➢ Maintenance of catch basins (Condition #62); ➢ Maintenance of all culverts, collections basins, traps, outlet structures, subsurface storage areas, and other elements of the drainage system, unless put into an easement to the Town of North Andover, in order to avoid blockages and siltation, which might cause failure of the system and/or detrimental impacts to on-site or off-site resource areas (Condition #58); ➢ Prohibition of underground fuels (Condition #74); ➢ Limitations on the use of fertilizers, herbicides and pesticides (Conditions #75); ➢ Prohibition of dumping of leaves, grass clippings, brush, trash, or other debris (Condition #76); ➢ The attached "Stormwater Operations and Management Plan", including Best Management Practices. No additional filings will be required to conduct maintenance of the above referenced system and plan (Condition #77). CAWinword\00C\350HoltRd.doc 11 NACC 6/11/2008 APPENDIX E OPERATION AND MAINTENANCE PLAN STORMWATER STANDARD #9 ESTIMATED MAINTENANCE BUDGET POST CONSTR UCTION O&m SNOW REMOVAL PLAN BMP LOCATION PLAN P:\2007 Projects\2007-023 High St No Andover\_Drainage\Drainage Report.doc VIA Consultants, h -1c. Consulting Engineers and Surveyors %' PROJECT NAME East Mill -inspection and Maintenance Budget DATE DCI JOB NO. May 1, 2008 2007-023 Catch Basins 19 structures Rinker Stormce tors 3 structures UNIT COST Quarterlv $100.00 $7,600.00 Isolator Row LABOR & Semiannually ITEM QUANT. UNIT MATERIALS TOTAL SECTION I -DURING CONSTRUCTION $200.00 Infiltration Basin 2 Erosion Control Cleaning of Drainage Structures CB, DMH) 1800 38 LF Each $2.50 $4,500.00 Cleaning of Rinker Stormceptors 3 Each $200.00 $1,500.00 $7,600.00 $4,500.00 Cleaninq of ADS Stormtech Isolator Row 1 Each $500.00 $500.00 Parkin Lot Sweepin Cleaning Drain Pi es 1 Each $1,000.00 $1,000.00 Sediment Removal of Foreba 970 1 LF $3.00 $2,910.00 I'llSediment Removal of Infiltration Basin 1 Each $500.00 $500.00 $4,500.00 Each $1,500.00 $1,500.00 $3,000.00 Foreba 2 Semiannuall Construction Phase Inspection and Maintenance $1,000.00diment ExistingDrainage Swale 1 1200 Annuall SF $500.00 $500.00 Illicit Dishcharge Sample Testing 4 $23,010.00 SECTION II - POST CONSTRUCTION INSPECTIONS Catch Basins 19 structures Rinker Stormce tors 3 structures 76 Quarterlv $100.00 $7,600.00 Isolator Row 6 Semiannually $500.00 $3,000.00 Infiltration Trenches 2 Semiannually -§e-m—iannually $100.00 $200.00 Infiltration Basin 2 $100.00 $200.00 Sediment Forebay 2 Semiannually $100.00 $200.00 Illicit Discharge 4 Quarterly $100.00 $400.00 4 Annuall $100.00 $400.00 MAINTENANCE Catch Basins 19 structures Stormceptors (3 structures 19 Annually $300.00 $5,700.00 lator Row 3 Annually$1,500.00 $4,500.00 LRinker ltfation Basin 1 Annually$3,000.00 $3,000.00 Foreba 2 Semiannuall $500.00 $1,000.00diment ExistingDrainage Swale 1 1200 Annuall SF $500.00 $500.00 Illicit Dishcharge Sample Testing 4 Annually $0.35 $200.00 $420.00 $800.00 Street Sweeping 2 Semiannuall $1,000.00 $2,000.00 SNOW REMOVAL Snow Removal 10 Each $500.00 $5,000.00 Annual Inspection/Maintenance Budget $34,920.00 P:\2007 Projects\2007-023 High St No Andover\_Documents\BMP Es timate.xls 1 esign Consultants, Inc. r, --�— 25th Consulting Engineers l �� Anniversary. 265 MEDFORD STREET SOMERVILLE, MA 02143 (61 7) 776- 33 50 fFLE-COPIER NUMBER (6+17) 776.771 Post Construction STORMWATER OPERATION AND MAINTENANCE PLAN for the Proposed EAST MILL PHASE IIA Submitted by: RCG EAST MILL LLC 17 Ivaloo Street, Suite 100 Somerville, Massachusetts 02143 Introduction -I RCG East Mill, LLC. has prepared the following Stormwater Operation and Maintenance Plan for the Owner and Operator of the installed stormwater management system. The system includes; hooded catch basins with deep sumps, Rinker Stormceptor, ADS Isolator Row, ADS Stormtech infiltrators, infiltration basin with sediment forebay, and an existing grassed swale. All structural and non-structural elements require maintenance and attention to maintain their optimum levels of service for treating stormwater flowing off-site. The increased stormwater created by proposed site improvements will be collected and will receive water quality treatment prior to discharging to an infiltration device. Stormwater exceeding the design storage volume will overflow to either Mill Pond or the piping system in High Street, both connecting to an existing sluiceway discharging to Osgood Pond. The pretreatment; storage, infiltration, and overflow components of the surface and subsurface stormwatermanagement system will provide the necessary levels of sediment and floatable pollutant removal to improve stormwater quality entering the inlet. This plan provides source reduction methods, schedules and procedures to minimize pollutant risks and maintain the desired operation level of the system in the post -development condition. Basic Information Property Owner: RCG EAST MILL LLC 17 Ivaloo Street, Suite 100 Somerville, Massachusetts 02143 Responsible Party: Same as Owner Deed Reference: Essex County Registry of Deeds: BK. 10601 PG. 340 The Operation and Maintenance Plan shall be recorded at the Essex County Registry of Deeds to ensure future maintenance of the installed facilities. Operation & Maintenance (Post -Construction): All inspection' and maintenance practices shall be performed according to the Massachusetts Stormwater Handbook, Volume 2, Chapter 2. Structural Approaches: Inspections — During the first year following project completion, all BMPs shall be inspected after each major storm event (greater than 1.5 inches), and again 72 hours after storm to verify that they function as designed. After the first year of operation BMPs shall be inspected as described in this document. The inspector shall note the date of the inspection along with the condition of the structure and amount of trash, debris and/or sediment. Based upon the observed condition, the inspector shall make recommendations based onreviously a of the structure. See below and Inspection/Maintenance Table, approved criteria for the cleaning Structure Cleaning — All BMPs, with exception of the Stormtech Infiltrators, shall be cleaned annually unless a more restrictive threshold is met (ex. sediment within 2.5ft of lowest CB invert). The land Owner shall remove sand, silt and debris from all hooded catch basins, Stormceptor, ADS Isolator Row, infiltration basin, and grassed swale and dispose of the material off-site in a legal manner meeting all DOT & EPA requirements. The land owner shall be careful not to damage the structures so as not to impact the effectiveness of the structures. See below and Inspection/Maintenance Table. P:\20Q7 Projects12007-023 High St No Andover\ D0CUments\0&M Post.doc Threshold Criteria Catch Basins (CB) Inspections: Inspect CBs four times per year and at the end of foliage and snow removal seasons. Remove CB grate and measure from lowest invert in CB down to top of sediment. If sediment is within 2.5 feet of invert, structure shall be cleaned. Maintenance: CBs shall be cleaned by clamshell bucket or vacuuming. Sediments shall be disposed of in a legal manner meeting DOT and EPA requirements. Sediment Forebav Inspections: Visually inspect forebay four times per year for sediment build up or erosion. Upstream Stormceptor provides sufficient TSS removal, however infiltration capacity of basin is significantly compromised when sediment is allowed to build up. Clean annually or when sediment is within 5 inches of bottom of stone at forebay outlet, whichever occurs first. Maintenance: Mow grassed area monthly to keep grass between 3-6 inches high. Clean by vacuuming and dispose of sediments in a legal manner meeting DOT and EPA requirements. Re -vegetate as needed for stabilization. Infiltration Basin Inspections: During first year visually inspect after each major storm (>1.5") and again 72 hours later to verify exfiitration is occurring as designed. Note if water remains in basin after 72 hours. After first year visually inspect twice per year. Maintenance: Preventive maintenance shall occur twice per year and shall consist of mowing buffer area, side slopes and basin bottom and rake stone while removing trash and debris. Sediments shall be disposed of in a legal manner meeting DOT and EPA requirements. Grassed Swale Inspections: Visually inspect annually for sediments and erosion, particularly near the culvert ends. Maintenance: Remove sediments annually by vacuuming and dispose of sediments in a legal manner meeting DOT and EPA requirements. Re -vegetate as needed for stabilization. Mow monthly to keep grass between 3-6 inches high. P:A2007 Projectsi2007-023 High St No Andovet^. Doc,uf7l%ntS,O&M Post.doc Illicit Discharges Inspections: Visually inspect outlets to pond for flows during dry weather conditions annually. If dry weather flow is found, take sample and have it tested for contents. Maintenance: If illicit discharge is discovered, the property Owner shall work with local authorities to eliminate source. Rinker Stormceptor - see manufacturer's O&M -attached ADS StormTech Isolator Row — see manufacturer's O&M attached. Non -Structural Approaches: Parking Lot Sweeping — The land owner shall sweep project area a minimum of two times per year, once after the spring thaw (March) and once after the tree leaf fall (November). The owner shall dispose of sediments in a legal manner meeting DOT and EPA requirements. Snow Storage - Proper snow management practices will be implemented to minimize shock and pollutant loading impacts. Plowed snow will be placed in locations identified on the Definitive Plans and BMP Plan. Debris from snow storage sites shall be removed annually in the spring. Additional Information: ADS StormTechs - The maintenance of the StormTech system is reliant upon proper preliminary collection systems maintenance. One must stabilize the site and ensure Stormceptor or Isolator Row and catch basins with hoods are in place and cleaned prior to feeding the StormTech chambers. P:\2007 Projects12007-023 Higta St No Andover\. Docurnents\0&1`J! Post.doc Snow Removal RECOMMENDED GUIDELINES These snow disposal guidelines address: (I) site selection; (II) site preparation and maintenance; and (III) emergency snow disposal. I. SITE SELECTION Proposed snow storage locations have been designated on the Definitive Plans and the BMP plan. In the event that additional storage is necessary, the following guideline shall be followed to select storage locations: The key to selecting effective snow disposal sites is to locate them adjacent to or on pervious surfaces in upland areas away from water resources and wells. At these locations, the snow meltwater can filter in to the soil, leaving behind sand and debris which can be removed in the springtime. The following areas should be avoided: 1. Avoid dumping of snow into Mill Pond or any other wetlands because of water quality impacts and flooding.. 2. Avoid disposing of snow on top of storm drain catch basins or in stormwater drainage swales or ditches. Snow combined with sand and debris may block a storm drainage system, causing localized flooding. A high volume of sand, sediment, and litter released from .:felting snow also may be quickly transported through the system into surface water. 3. Do not dump snow within a Zone II or Interim Wellhead Protection Area (IWPA) of a public water supply well or within 75 feet of a private well, where road salt may contaminate water supplies. II. SITE PREPARATION AND MAINTENANCE The following maintenance measures should be undertaken for all snow disposal sites: 1. A silt fence or equivalent barrier should be placed securely on the downgradient side of the snow disposal site. 2. To filter pollutants out of the meltwater, a 50 -foot vegetative buffer strip should be maintained during the growth season between the disposal site and adjacent waterbodies. I Debris should be cleared from the site prior to using the site for snow disposal. 4. Debris should be cleared from the site and properly disposed of at the end of the snow season and no later than May 15. III. EMERGENCY SNOW DISPOSAL If upland disposal sites have been exhausted, snow may be disposed of near waterbodies. A vegetated buffer of at least 50 feet should still be maintained between P:\'2007 Pro.i c:ts'2007 023 f ligh S1 ,No AndoverDoCurouris'. )rot+ RQrnovad.doc the site and the waterbody in these situations. Furthermore, it is essential that the other guidelines for preparing and maintaining snow disposal sites be followed to minimize the threat to adjacent waterbodies. Under extraordinary conditions, when all land-based snow disposal options are exhausted, disposal of snow that is not obviously contaminated with road salt, sand, and other pollutants may be allowed in certain waterbodies under certain conditions. In these dire situations, notify the Town of North Andover Conservation Commission and the MassDEP Northeast Regional Service Center before disposing of snow in a waterbody. Use the following guidelines in these emergency situations: t. Dispose of snow in open water with adequate flow and mixing to prevent ice dams from forming. 2. Do not dispose of snow in saltmarshes, vegetated wetlands, certified vernal pools, shellfish beds, mudflats, drinking water reservoirs and their tributaries, Zone IIs or IWPAs of public water supply wells, Outstanding Resource Waters, or Areas of Critical Environmental Concern. 3. Do not dispose of snow where trucks may cause shoreline damage or erosion. 4. Consult with the North Andover Conservation Commission to ensure that snow disposal in open water complies with local ordinances and bylaws. Source: MassDEP Guideline No. BRPG01-01 P:\_2007 i'I'±�iC 5 ?{J{) i!?:> �']IQii >i NoAndowt' Doct fllUl,s\Sri(vw Rv ,Oval.joc 0 Stor rn ecpie Detention - Retention • Recharge Subsurface Stormwater Management" Isolator" Row O&M Manual StormTech`- Chamber System for Stormwater Management 1.1 INTRODUCTION An important component of any Stormwater Pollution Prevention Plan is inspection and maintenance. The StormTech Isolator Row is a patent pending technique to inexpensively enhance Total Suspended Solids (TSS) removal and provide easy access for inspection and maintenance. Looking down the Isolator Row from the manhole opening, woven geotextile is shown between the chamber and stone base. 1.2 THE ISOLATOR" ROW The Isolator Row is a row of StormTech chambers, either SC -740 or SC -310 models, that is surrounded with filter fabric and connected to a closely located manhole for easy access. The fabric -wrapped chambers provide for settling and filtration of sediment as storm water rises in the Isolator Row and ultimately passes through the filter fabric. The open bottom chambers and perforated side- walls allow storm water to flow both vertically and horizon- tally out of the chambers. Sediments are captured in the Isolator Row protecting the storage areas of the adja- cent stone and chambers from sediment accumulation. Two different fabrics are used for the Isolator Row. A woven geotextile fabric is placed between the stone and the Isolator Row chambers. The tough geotextile provides a media for storm water filtration and provides a durable surface for maintenance operations. It is also designed to prevent scour of the underlying stone and remain intact during high pressure jetting. A non -woven fabric is placed over the chambers to provide a filter media for flows passing through the perforations in the sidewall of the chamber. The Isolator Row is typically designed to capture the "first flush" and offers the versatility to be sized on a vol- ume basis or flow rate basis. An upstrearn manhole not only provides access to the Isolator Row but typically includes a high flow weir such that storm water flowrates or volumes that exceed the capacity of the Isolator Row overtop the over flow weir and discharge through a manifold to the other chambers. The Isolator Row may also be part of a treatment train. By treating storm water prior to entry into the chamber system, the service life can be extended and pollutants such as hydrocarbons can be captured. Pre-treatment best management practices can be as simple as deep sump catch basins, oil -water separators or can be inno- vative storm water treatment devices. The design of the treatment train and selection of pretreatment devices by the design engineer is often driven by regulatory requirements. Whether pretreatment is used or not, the Isolator Row is recommended by StormTech as an effective means to minimize maintenance requirements and maintenance costs. Note: See the StormTech Design Manual for detailed information on designing inlets for a StormTech system, including the Isolator Rowv, StormTech Isolator Row with Overflow Spillway (not to scale) MANHOLE WITH OVERFLOW WEIR ECCENTRIC HEADER OPTIONAL ACCESS 2 Call StormTech at 888.892.2694 or visit our website at www.stormtech.com for technical and product information, 2.0 Isolator :I o a s.SitormTdch- 2.1 INSPECTION The frequency of Inspection and Maintenance varies by location. A routine inspection schedule needs to be established for each individual location based upon site specific variables. The type of land use (i.e. industrial, commercial residential), anticipated pollutant load, per- cent imperviousness, climate, etc. all play a critical role in determining the actual frequency of inspection and maintenance practices. At a minimum, StormTech recommends annual inspec- tions. Initially, the Isolator Row should be inspected every 6 months for the first year of operation. For subsequent years, the inspection should be adjusted based upon previous observation of sediment deposition. The Isolator Row incorporates a combination of standard manhole(s) and strategically located inspection ports (as needed). The inspection ports allow for easy access to the system from the surface, eliminating the need to perform a confined space entry for inspection purposes. If upon visual inspection it is found that sediment has accumulated, a stadia rod should be inserted to deter- mine the depth of sediment. When the average depth of sediment exceeds 3 ichess throughout*,he length of the Isolator Row, clean-out should be performed. 2.2 MAINTENANCE The Isolator Row was designed to reduce the cost of periodic maintenance. By "isolating" sediments to just one row, costs are dramatically reduced by eliminating the need to clean out each row of the entire storage bed. If inspection indicates the potential need for main- tenance, access is provided via a manhole(s) located on the end(s) of the row for cleanout. If entry into the manhole is required, please follow local and OSHA rules for a confined space entries. StormTech Isolator Row (not to scale) 12." MIN ID 25" MAX OD PIPE INSPECTION PORT SET 1.5" FROM BOTTOM LOCATION PER OF CHAMBER ENGINEER'S DRA1A CATCH BASIN OR Examples of culvert cleaning nozzles appropriate for Isolator Row maintenance. (These are not StormTech products.) Maintenance is accomplished with the JetVac process, The JetVac process utilizes a high pressure water noz- zle to propel itself down the Isolator Row while scouring and suspending sediments. As the nozzle is retrieved, the captured pollutants are flushed back into the man- hole for vacuuming. Most sewer and pipe maintenance companies have vacuum/JetVac combination vehicles. Selection of an appropriate JetVac nozzle will improve maintenance efficiency. Fixed nozzles designed for cul- verts or large diameter pipe cleaning are preferable. Rear facing jets with an effective spread of at least 45" are best. Most JetVac reels have 400 feet of hose allow- ing maintenance of an Isolator Row up to 50 chambers long. The JetVac process shall only be performed on StormTech Isolator Rows that have AASHTO class 1 woven geotextile (as specified by StormTech) over their angular base stone. COVER ENTIRE ROW WITH AASHTO M288 CLASS 2 NON -WOVEN GEOTEXTILE SC -740 — 8' WIDE STRIP STORMTECH SC -310 — 5' WIDE STRIP FENDCAP 2FT MIN. - =OTEXTILE �SUP WOVEN THAT MEETS AASHTO M288 CLASS 1 REQUIREMENTS, BETWEEN STONE BASE AND CHAMBERS SC -740 — 5'-6' WIDE STRIP SC -310 — 4' WIDE STRIP Call StormTech at 888.892.2694 or visit our website at www.stormtech.com for technical and product information. 3 3.0 Isolator Row Step By Step Maintenance Procedures Step 1) Inspect Isolator Row for sediment StormTech Isolator Row (not to scale) A) Inspection ports (if present) i. Remove lid from floor box frame ii. Remove cap from inspection riser iii. Using a flashlight and stadia rod, measure depth of sediment and record results on maintenance log. iv. If sediment is at, or above, 3 inch depth proceed to Step 2. If not 4 proceed to step 3. B) All Isolator Rows i. Remove cover from manhole at upstream end of Isolator Row ii. Using a flashlight, inspect down Isolator Row through outlet pipe 1. Mirrors on poles or cameras may be used to avoid a confined space entry 2. Follow OSHA regulations for confined space entry if entering manhole iii. If sediment is at or above the lower row of sidewall holes (approximately 3 inches) proceed to Step 2. If not proceed to Step 3. Step 2) Clean out Isolator Row using the JetVac process A) A fixed culvert cleaning nozzle with rear facing nozzle spread of 45 inches or more is preferable B) Apply multiple passes of JetVac until backflush water is clean C) Vacuum manhole sump as required Step 3) Replace all caps, lids and covers, record observations and actions Step 4) inspect & clean catch basins and manholes upstream of the StormTech system Sample Maintenance Log 3/15/01 6.3 ft. none New installation. Fixed point is Cl frame at grade djm 9/24/01 6.2 0.1 ft. Some grit felt sm 6/20/03 5.8 0.5 ft. Mucky feel, debris visible in manhole and in ry Isolator row, maintenance due 7/7/03 6.3 ft. 0 System jetted and vacuumed n rr 16 StormTech® Detention • Retention • Recharge Subsurface Stormwater Managements 20 Beaver Road, Suite 104 I Wethersfield I Connecticut 106109 860.529.8188 1888.892.2694 I fax 866.328.8401 1 www.stormtech.com StormTech products are covered by one or more of the following patents: U.S. Patents: 5,401,459; 5,511,903: 5,716,163; 5,588,778: 5,839,844; Canadian Patents: 2,158,418 Other U.S. and Foreign Patents PendingPrinted in U.S.A. © Copyright. All rights reserved. StormTech LLC, 2004 5090104-1 I w wol �a 4 w wol Owner's Manual Stormceptor' Owner's Manual Contents 1. Stormceptor Overview 2. Stormceptor System Operation 3. Identification of Stormceptor 4. Stormceptor Maintenance Guidelines 4.1 Recommended Maintenance Procedure 4.2 Disposal of Trapped Material from Stormceptor 5. Recommended Safety Procedures 6. Stormceptor Monitoring Protocol 6.1 Pollutants to be Monitored 6.2 Monitoring Methodology List of Figures Figure 1. Single Inlet/Outlet "Disc" Insert In -Line Stormceptor 6 Figure 2. STC 4501 Inlet Stormceptor 6 Rev. 3/2006 Paee I Rinker Materials www.rinkerstormceptor.com Page List of Tables Table 1. Stormceptor Dimensions 4 Table 2. Stormceptor Capacities 5 Table 3. Sediment Depths Indicating Required Maintenance 5 Table 4. Monitoring Pollutants 9 List of Figures Figure 1. Single Inlet/Outlet "Disc" Insert In -Line Stormceptor 6 Figure 2. STC 4501 Inlet Stormceptor 6 Rev. 3/2006 Paee I Rinker Materials www.rinkerstormceptor.com Owner's Manual Paee 2 Thank You! We want to thank you for selecting the Stormceptor System to use in your efforts in protecting the environment. Stormceptor is one of the most effective and maintenance friendly storm water quality treatment devices available. If you have any questions regarding the operation and maintenance of the Stormceptor System, please call your local Rinker Materials representative, or the Stormceptor Information Line at (800) 909-7763. I. Stormceptor Overview The Stormceptor System is a water quality device used to remove total suspended solids (TSS) and free oil (TPH) from storm water run-off. Stormceptor takes the place of a conventional manhole or inlet structure within a storm drain system. Rinker Materials manufactures the Stormceptor System with precast concrete components and a fiberglass disc insert. A fiberglass Stormceptor can also be provided for special applications. The Stormceptor System product line consists of four patented designs: • The In -Line (Conventional) Stormceptor, available in eight model sizes ranging from 900 to 7200 gallon storage capacity. • An In -Line (Series) Stormceptor is available in three model sizes ranging from 11,000 to 16,000 gallon storage capacity. • The Submerged Stormceptor, an in-line system designed for oil and sediment removal in partially submerged pipes, available in all models sizes ranging from 4501 to 16,000 gallon storage capacity. • The inlet Stormceptor is a 450 gallon unit designed for small drainage areas. Stormceptor removes free oil and suspended solids from storm water preventing hazardous spills and non -point source pollution from entering downstream lakes and rivers. Rinker Materials and its affiliates market and manufacture the Stormceptor System in the United States and Australia. Several thousand Stormceptor Systems have been installed in various locations throughout North America, Australia and the Caribbean since 1990. In the Stormceptor, a fiberglass insert separates the treatment chamber from the by-pass chamber. The different insert designs are illustrated in Figures 1 and 2. These designs are easily distinguishable from the surface once the cover has been removed. There are four versions of the in-line disc insert: single inlet/outlet, multiple inlet, in-line series insert and submerged designs. In the non -submerged "disc" design you will be able to see the inlet pipe, the drop pipe opening to the lower chamber, the weir, a 6" oil inspection/cleanout pipe, a large 24" riser pipe opening offset on the outlet side of the structure, and the outlet pipe from the unit. The weir will be around the 24" outlet pipe on the multiple inlet disc insert and on large diameter pipe applications. The STC (series) Stormceptors consist of two chambers comprised of similar fiberglass inserts. These units also contain a 6" oil/inspection cleanout pipe and 24" outlet riser pipes. The submerged disc insert has a higher weir and a second inlet drop pipe. In the inlet design you will be able to see an inlet drop pipe and an outlet riser pipe as well as a central oil inspection/cleanout port. Rinker Materials www.rinkerstormceptor.com Owner's Manual r u 'r r lr /-MIM Paee 3 The Stormceptor consists of a lower treatment chamber, which is always full of water, and a by-pass chamber. Storm water flows into the by-pass chamber via the storm sewer pipe or grated inlet (Inlet Stormceptor). Normal flows are diverted by a weir and drop pipe arrangement into a treatment chamber. Water flows up through the submerged outlet pipe based on the head at the inlet weir and is discharged back into the by-pass chamber downstream of the weir. The treated storm water continues down stream via the storm sewer system. Oil and other liquids with a specific gravity less than water rise in the treatment chamber and become trapped under the fiberglass insert. Sediment will settle to the bottom of the chamber by gravity. The circular design of the treatment chamber is critical to prevent turbulent eddy currents and to promote settling. During infrequent high flow conditions, storm water will by-pass the weir and be conveyed to the outlet sewer directly. The by-pass is an integral part of the Stormceptor since other oil/grit separators have been noted to scour during high flow conditions (Schueler and Shepp, 1993). For further details please refer to The Stormceptor System Technical Manual. The key benefits of Stormceptor include: • Capable of removing more than 80% of the total sediment load when properly applied as a source control for small drainage areas • Removes free oil from storm water during normal flow conditions • Will not scour or resuspend trapped pollutants • Ideal spill control device for commercial and industrial developments • Vertical orientation facilitates maintenance and inspections • Small foot print !'rsi lrrr r r u.'r r All In -Line (including Submerged) Stormceptors are provided with their own frame and cover. The cover has the name STORMCEPTOR clearly embossed on it to allow easy identification of the unit. The name Stormceptor isnot embossed on the inlet models due to the variability of inlet grates used/approved across North America. You will be able to identify the Inlet Stormceptor by looking into the grate since the insert will be visible. Once you have located a unit, there still may be a question as to the size of the unit. Comparing the measured depth from the water level (bottom of insert) to the bottom of the tank with Table 1 should help determine the size of the unit. Rinker Materials www.rinkerstormceptor.com I 1 0 Owner's Manual Table 1. Stormceptor Dimensions* Model Pipe Invert to Top of Base Slab 4501 6011 900 55" 1200 71" 1800 105" 2400 94" 3600 134" 4800 128" 6000 150" 7200 134" 11000s 128"** 13000s 150"** 16000s 134"** Depths are approximate ** Depths per structure Page 4 Starting in 1996, a metal serial number tag has been affixed to the fiberglass insert. If the unit does not have a serial number, or if there is any uncertainty regarding the size of the Stormceptor using depth measurements, please contact the Rinker Materials Stormceptor information line at (800) 909-7763 for assistance. ,e, The performance of all storm water quality measures that rely on sedimentation decreases as they fill with sediment (See Table 2 for Stormceptor capacities). An estimate of performance loss can be made from the relationshipbetween performance p erand storage volume. Rinker Materials recommends maintenance be performed when the sediment volume in the unit reaches 15% of the total storage. This recommendation is based on several factors: • Sediment removal is easier when removed on a regular basis (as sediment builds up it compacts and solidifies making maintenance more difficult). • Development of a routine maintenance interval helps ensure a regular maintenance schedule is followed. Although the frequency of maintenance will depend on site conditions, it is estimated that annual maintenance will be required for most applications; annual maintenance is a routine occurrence which is easy to plan for and remember. • A minimal performance degradation due to sediment build-up can occur. In the event of any hazardous material spill, Rinker Materials recommends maintenance be performed immediately. Maintenance should be performed by a licensed liquid waste hauler. You should also notify the appropriate regulatory agencies as required. Rinker Materials www.rinkerstormceptar.com Owner's Manual Page 5 !Oral DOM structures combined 4.1 Recommended Maintenance Procedure For the "disc" design, oil is removed through the 6" inspection/cleanout pipe and sediment is removed through the 24" diameter outlet riser pipe. Alternatively, oil could be removed from the 24 opening if water is removed from the treatment chamber, lowering the oil level below the drop pipes. The depth of sediment can be measured from the surface of the Stormceptor with a dipstick tube equipped with a ball valve (Sludge Judge'). It is recommended that maintenance be performed once the sediment depth exceeds the guideline values provided in Table 3 for the reasons noted in Section 4.0 Stormceptor Maintenance Guidelines. Table 3. Sediment Depths Indicating Required Maintenance Model Table 2. Stormceptor Capacities 8" 200 mm Model Sediment Capacity ft' (L) 1200 Oil Capacity US gal (L) Total Holding Capacity US gal (L) 450i 45 (1.276) 3600 86 (326) 470 (1779) 900 75 (2135) 15" 375 mm 251 (950) 952 (3604) 1200 113 (3202) 251..-.(950) 1234 (4671) 1800 193 (5470) 251 (950) 1833 (6939) 2400 155 (4387) 840 (3180) 2462 (9320) 3600 323 (9134) 840 (3180) 3715 (14063) 4800 465 (1.31.58) 909 (3441) 5059 (19150) 6000 609 (17235) 909 (3441) 6136 (23227) 7200 726 (20551) 1059 (4009) 7420 (28088) 11.000s 942 (26687) 2797 (1.0588)* 111.94 (42374) 13000s 1230(34841) 2797 (10588)* 13348 (50528) 16000s 1470 (41632) 3055 (11564)* 15918 (60256) Page 5 !Oral DOM structures combined 4.1 Recommended Maintenance Procedure For the "disc" design, oil is removed through the 6" inspection/cleanout pipe and sediment is removed through the 24" diameter outlet riser pipe. Alternatively, oil could be removed from the 24 opening if water is removed from the treatment chamber, lowering the oil level below the drop pipes. The depth of sediment can be measured from the surface of the Stormceptor with a dipstick tube equipped with a ball valve (Sludge Judge'). It is recommended that maintenance be performed once the sediment depth exceeds the guideline values provided in Table 3 for the reasons noted in Section 4.0 Stormceptor Maintenance Guidelines. Table 3. Sediment Depths Indicating Required Maintenance Model Sediment Depth* 4501 8" 200 mm 900 8" (200 mm) 1200 .10" (250 mm) 1800 15" (375 mm) 2400 12" (300 mm) 3600 17" (425 mm) 4800 15" (375 mm) 6000 18" (450 mm) 7200 15" 375 mm 11000s 17" 425 min)** 13000s 20" (500 mm)** 16000s 17" (425 mm)** Depths are approximate ** .hz each structure Rinker Materials www.rinkerstormceptor.com Owner's Manual Page 6 No entry into the unit is required for routine maintenance of the Inlet Stormceptor or the smaller disc insert models of the In -Line Stormceptor. Entry to the level of the disc insert may be required for servicing the larger disc insert models. Any potential obstructions at the inlet can be observed from the surface. The fiberglass insert has been designed as a platform for authorized maintenance personnel in the event that an obstruction needs to be removed. Typically, maintenance is performed by the Vacuum Service Industry, a well established sector of the service industry that cleans underground tanks, sewers, and catch -basins. Costs to clean a Stormceptor will vary based on the size of the unit and transportation distances. If you need assistance for cleaning a Stormceptor unit, contact your local Rinker Materials representative, or the Stormceptor Information Line at (800) 909-7763. Figures 1 and 2 will help illustrate the access point for routine maintenance of Stormceptor Sediment and oil removal can be performed by vacuums Concrete Stormceptor Oil removal can be performed by vacuum truck through the oil/inspection port Disc Insert Figure 1 Single Inlet/Outlet "Disc" Insert 'In -Line Stormceptor Inlet Grate Oil Port Removable r Tee Maintenance Figure 2 STC 4501 Inlet Stormceptor Rinker Materials Inlet Insert www.rinkerstormceptor.com Owner's Manual Page 7 a,/ ! ! r - UJI911 The requirements for the disposal of material from Stormceptor are similar to that of any other Best Management Practices (BMP). Local guidelines should be consulted prior to disposal of the separator contents. In most areas the sediment, once dewatered, can be disposed of in a sanitary landfill. It is not anticipated that the sediment would be classified as hazardous waste. In some areas, mixing the water with the sediment will create a slurry that can be discharged into a trunk sanitary sewer. In all disposal options, approval from the disposal facility operator/agency is required. Petroleum waste products collected in Stormceptor (oil/chemical/fuel spills) should be removed by a licensed waste management company." What if I see an oil rainbow or sheen at the Stormceptor outlet? With a steady influx of water with high concentrations of oil, a sheen may be noticeable at the Stormceptor outlet. This may occur because a rainbow or sheen can be seen at very small oil concen- trations (< 10 ppm). Stormceptor will remove over 95% of all free oil and the appearance of a sheen at the outlet with high influent oil concentrations does not mean that the unit is not working to this level of removal. In addition, if the influent oil is emulsified the Stormceptor will > p 11 not be able to remove it. The Stormceptor is designed for free oil removal and not emulsified or dissolved oil conditions. Rinker Materials strongly recommends that any person who enters a Stormceptor System follow all applicable OSHA regulations for entry in permit required confined spaces, as outlined in 29 CFR 1910.146. Aermit required confined s P Q pace consists of a space that: • Is large enough and so configured that an employee can bodily enter and perform assigned work. • Has limited or restricted means for entry and exit. • Is not designed for continuous employee occupancy. • Contains or has one of the following: - a potential to contain a hazardous atmosphere. - a material that has the potential for engulfing an entrant. - any other recognized serious safety hazard. Storm water and wastewater systems fall under OSHA guidelines for a permit required confined space. Failure to follow OSHA guidelines for entry and work in a permit required confined space can result in serious injury or death. Please exercise extreme caution and follow appropriate safety procedures when entering any confined space. Two square pick holes in the cover vent the Stormceptor, allow for removal of the cover, and provide sampling ports for air quality monitoring before the cover is removed. If you must enter the Stormceptor, please note that if the disc insert inside is wet, it can be slippery. Rinker Materials www.rinkerstormceptor.com Owner's Manual Page 8 Recognizing that every work site is different, the responsibility for safety falls on the contractor. The contractor must ensure that all employees and subcontractors follow established safety procedures and OSHA regulations for working in and around permit required confined spaces as well as for any other safety hazard that may be present on that particular site. i( r rt 'rr JLr� rrrW,rr r If monitoring of your Stormceptor System is required, we recommend you follow the procedures outlined below by the Rinker Materials Stormceptor office. If you have any questions regarding monitoring please contact the Rinker Materials Stormceptor Product Manager at (800) 909-7763. Table 4 indicates the pollutants to be monitored during the storm events and the minimum acceptable detection limit for each pollutant to be analyzed. Approved federal or state laboratory analysis methodologies are to be used for the analysis. The optional metals indicated in Table 4 refer to the Resource Conservation Recovery Act and may be covered by a generic metals scan. Bacteria monitoring will not be required unless explicitly requested elsewhere. Two sediment samples are to be extracted from the monitored Stormceptor at the end of the study and analyzed for the particle size distribution and water content. A minimum of 8 U.S. sieve sizes should be used to determine the particle size distribution. Sieves that are used must include, but are not limited to 35, 60, 100, 140, 200, 270 and 400. Three clay particle sizes must be analyzed to denote particle sizes between 5 and 25 pm. The particle size distributions should be plotted on a standard grain size distribution graph. Rinker Materials www.rinkerstormceptor.com . $ 1 Owner's Manual Table 4. Monitoring Pollutants Pollutant Minimum Detection Limit MDL Total Suspended Solids TSS 5 mg/l Total Phosphorus (P) 0.02 mg/1 Total Kjeldahl NitrogenTKN 0.1 mor Copper (Cu) 0.001 mg/l Cadmium (Cd) 0.005 mg/1 Lead (Pb) 0.05 m /l Zinc (Zn) 0.01 mg/1 Chromium (Cr) 0.01 mg/1 Total Petroleum Hydrocarbons (TPH) 1 .mg/1 Conductivity 0.1 yimho/cm Fecal Coliform* 1/100 ml Additional Metals (optional) Arsenic (As) 0.005 mg/1 Barium (Ba) 0.01 mg/1 Mercury (Hg) 0.0005 mg/l Selenium (Se) 0.005 mg/l Silver (Ag) 0.01 mg/1 fi Unly it explicitly requested in Terms of Reference 6.2 Monitoring Methodology Page 9 The following monitoring protocol should be followed to ensure reasonable monitoring results and interpretation: • Monitoring protocols should conform to EPA 40 CFR Part 136. • The EPA guideline of 72 hours dry period prior to a monitoring event should be used. This will ensure that there is sufficient pollutant build-up available for wash -off during the monitored event. • Flow proportional monitoring must be conducted for thearameters indicated ed in Table 1. Samples should be P analyzed ed y separately for the first flush versus the remainder of, -the storm event. Monitoring need not extend longer than an 8 -hour period after the start of the storm event (composite). • Sediment sampling (measuring the sediment depth in the unit at the beginning and end of the monitoring period) must be conducted. The water content of the sediment layer must be analyzed to determine the dry volume of suspended solids. Sediment depth sampling will indicate the rate of pollution accumulation in the unit, provide confirmation that the unit is notscouring and confirm the flow proportional monitoring results. A mass balance using the sediment sampling should be calculated to validate the flow proportional sampling. Rinker Materials www.rinkerstormceptor.com • 1 4 G Owner's Manual PnAn In • Grab sampling (just taking samples at the inlet and outlet) is an unacceptable methodology for testing the performance of the Stormceptor during wet weather conditions unless it is flow weighted (flow weighted composite sample from numerous grab samples) over the entire storm. • The oil containment area underneath the insert should be inspected via the vent pipe for dry weather spills capture once a month during the monitoring period since the flow rate of a dry weather spill may not trigger the automated samplers. • A tipping bucket rain gauge should be installed on-site to record the distribution of storm intensities and rainfall volume during the monitored events. • Results that are within the laboratory error (both inlet and outlet) or are representative of relatively clean water should be discarded. Typical concentrations of pollutants in storm water are: TSS 100 mg/L Total P 0.33 mg/L TKN 1.50 mg/L Total Cu 34 jig /L Total Pb 144 It g/L Total Zn 160 It g/L A threshold first flush/composite TSS value of 50 mg/L at the inlet to the Stormceptor should be used as the lower limit of an acceptable storm for reporting event efficiency. Monitoring results where the influent TSS concentration is less than 50 mg/L should only be used in mass load removal calculations over the entire monitoring period with other storms where the influent concentration is greater than 50 mg/L. The results should not be analyzed if the influent TSS concentrations during all monitored storms are less than 50 mg/L. Storms where the influent TSS concentration is less than 10 mg/L should be discarded from all analyses. • A threshold storm event volume equal to 1.5 times the storage volume of the Stormceptor being monitored should be used as the lower limit of an acceptable storm for monitoring. • Sampling at the outlet of the Stormceptor should be conducted within the 24" outlet riser pipe to accurately define event performance. • The personnel monitoring the Stormceptor should record incidental information in a log file. Information such as weather, site conditions, inspection and maintenance information, monitoring equipment failure, etc. provide valuable information that can explain anomalous results. • Laboratory results of monitored samples should be analyzed within 10 days of being submitted to the lab. • Weekly inspections of the sampling tubes, flow meter, rain gauge, and quality samplers should be conducted to ensure proper operation of the monitoring equipment. Debris and sediment that collects around the sampling intakes should be cleaned after each event. • During the installation of automated quality samplers, care should be exercised to ensure that representative samples will be extracted (placement of intakes, ensuring that tubing is not constricted or crimped). • Sampling should be conducted for a minimum of 6 storms. Ideally 15 storms should be sampled if the budget allows. Kinker Materials I I www.rinkerstormceptor.com 1 0 1 4 rn r�! ri. O, ,(U al TT U � •� L 'cn w W Oa V caLL cn N N c - A N ,� Na a� In a w E c° a (D ca ca W t.. O +O•' N > cu W O w 3 �' >, Qi c° 0 ; b b c Q° a v° a (L)3 �° C � o .a � � p "o Ln vo f w ro a n o ° ° v a � Q_ cc �; a n a� r.., v a tZ= cn ° >, 3 c GA en a) a� n `� a c ❑ aoi •°A a o cu c° d ` S .r �' ami ° b m = O n O Occ 3 0 is p k c Cd o sem. ca N y cd u a b >, ca x �, cc C's N b a co on ° C° a „ °' b U Q a, C 3 C7 u on i o an a .a w y°42 L2 n c �3 0� � 03 � a-fl� �^ ca >�.� � ws w ca cz u aai0 a� > ca E> E c 3 ? 3 w E ca 3 ° E E . 3 0 °? m 0 N o a� U ° o ° Ca as p > 0 � v� Z .5 `,.a Z ca W y 42 N 3 z cd cu cn In 0 co ca cu cad s�Q M U M 9 +�-' aai o� O q�j O O i v CO uN w In Qn cl O w 00'cp ami w 4 >. a v� Q o &-ani n ZE L a� C a� ? O. �' a4i ,., � L � * ° w B ca ! a C C S3. a O >> c�a 40 0 C13 42}o ca O W 7 4M. O > 4) ca s 'C Q c G 4 C O a a L w � � � H L a v eq 0-0 'C p H ami f� eq cd L y S w C y = ca L r/i 3 L � � A �; :'oG CD R = ate.• rn r�! ri. i a P Ll'Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 5 - Order of Conditions Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 E. Issuance MassDEP File Number: 242-1422 This Order is valid for three years, unless otherwise specified as a special (,a/ Id 16,P condition pursuant to General Conditions #4, from the date of issuance. 1. Date of Issuance Please indicate the number of members who will sign this form: � This Order must be signed by a majority of the Conservation Commission. 2. Number of signers The Order must be mailed by certified mail (return receipt requested) or hand delivered to the applicant. A copy also must be mailed or hand delivered at the same time to the appropriate Department of Environmental ProtectionRegio Ice, if not filing electronically, and the property owner, if different from applicant. /ff Signatures: men ��jq �• � �� � t Notary Acknowledgement Commonwealth of Massachusetts County of 'P of On this Day Before me, the undersigned Notary Public, personally appeared Essex North 6%, doof— Month Year Name of Document Signer proved to me through satisfactory evidence of identification, which was/were Massachusetts License Description of evidence of identification to be the person whose name is signed on the preceding or attached document, and acknowledged to me that he/she signed it voluntarily for its stated purpose. As member of North Andover City/'Town � DONNA M. WEDGE t�. [' NOtAW FUBuc coMMOHWMTH OF MAMCHUSEM My Comm. EVkW Aug. 7, 2009 Place notary seal and/or any stamp above This Order is issued to the applicant as. follows: ❑ by hand delivery on Date Conservation Commission Signature of Notary Public �. r Printed Name of Notary Public PI 'Y l d 00 - My Commjbsion Expires (Date) 2-1by certified mail, return receipt requested, on Date wpaform5.doc • rev. 2/27/08 Page 8 of 10 1 t t D LlMassachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 5 - Order of Conditions Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 F. Appeals MassDEP File Number: 242-1422 The applicant, the owner, any person aggrieved by this Order, any owner of land abutting the land subject to this Order, or any ten residents of the city or town in which such land is located, are hereby notified of their right to request the appropriate MassDEP Regional Office to issue a Superseding Order of Conditions. The request must be made by certified mail or hand delivery to the Department, with the appropriate filing fee and a completed Request of Departmental Action Fee Transmittal Form, as provided in 310 CMR 10.03(7) within ten business days from the date of issuance of this Order. A copy of the request shall at the same time be sent by certified mail or hand delivery to the Conservation Commission and to the applicant, if he/she is not the appellant. Any appellants seeking to appeal the Department's Superseding Order associated with this appeal will be required to demonstrate prior participation in the review of this project. Previous participation in the permit proceeding means the submission of written information to the Conservation Commission prior to the close of the public hearing, requesting a Superseding Order or Determination, or providing written information to the Department prior to issuance of a Superseding Order or Determination. The request shall state clearly and concisely the objections to the Order which is being appealed and how the Order does not contribute to the protection of the interests identified in the Massachusetts Wetlands Protection Act (M.G.L. c. 131, § 40), and is inconsistent with the wetlands regulations (310 CMR 10.00). To the extent that the Order is based on a municipal ordinance or bylaw, and not on the Massachusetts Wetlands Protection Act or regulations, the Department has no appellate jurisdiction. Section G, Recording Information is available on the following page. wpaform5.doc • rev. 2/27/08 Page 9 of 10 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands MassDEP File Number: WPA Form 5 - Order of Conditions 242-1422 Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 G. Recording Information This Order of Conditions must be recorded in the Registry of Deeds or the Land Court for the district in which the land is located, within the chain of title of the affected property. In the case of recorded land, the Final Order shall also be noted in the Registry's Grantor Index under the name of the owner of the land subject to the Order. In the case of registered land, this Order shall also be noted on the Land Court Certificate of Title of the owner of the land subject to the Order of Conditions. The recording information on this page shall be submitted to the Conservation Commission listed below. North Andover Conservation Commission Detach on dotted line, have stamped by the Registry of Deeds and submit to the Conservation Commission. -------------------------------------------------------------------------------------------------------------------------- To: North Andover Conservation Commission Please be advised that the Order of Conditions for the Project at: 21 High Street Project Location Has been recorded at the Registry of Deeds of: Essex North County for: Property Owner 242-1422 MassDEP File Number Book and has been noted in'the chain of title of the affected property in: Book Page In accordance with the Order of Conditions issued on: Date If recorded land, the instrument number identifying this transaction is: Instrument.Number If registered land, the document number identifying this transaction is: Document Number Signature of Applicant Page wpaform5.doc • rev. 2/27/08 Page 10 of 10 ► + ° C DEP FILE # 242 1422 I, APPENDIX A — AFFIDAVIT (authorized agent of applicant and / or owner) 1) I am the on oath do hereby depose and state: (PLEASE CHECK AT LEAST ONE BLOCK) (position with applicant) of the applicant upon whom the Order of Conditions (applicant's name) (DEP or NACC File #) have been placed upon by the North Andover Conservation Commission (NACC). 2) I am the (position with owner) and / or of (owner) the owner upon whose land Order of Conditions (DEP or NACC File #) placed upon by the NACC. have been ♦ I hereby affirm and acknowledge that I have received said Order of Conditions and have read the same and understand each and every condition, which has been set forth in said Order of Conditions. ♦ I hereby affirm and acknowledge that on this day of '20---, I inspected said property together with any and all improvements, which have been made to the same and hereby certify that each and every condition set forth in the Order of Conditions are presently in compliance. ♦ I hereby affirm and acknowledge that this document will be relied upon by the NACC, as well as any potential buyers of said property, which is subject to the Order of Conditions. Signed under the pain and penalties of perjury this day of 20 (Authorized agent of applicant or. owner) CAWinword\00C\350HoltRd.doc 12 NACC 6/11/2008