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HomeMy WebLinkAboutUntitled (11) ■ 11111 1 LI, Massachusetts Department of Environmental Protection Provided by MassDEP: Bureau of Resource Protection-Wetlands MassDEP File#:242-1650 WPA Form 5-Order of Conditions eDEPTransaction#:738804 Massachusetts Wetlands Protection Act M.G.L.c. 131, §40 City/Town:NORTH ANDOVER A. General Information 1.Conservation Commission NORTH ANDOVER 2.Issuance a. E OOC b.f- Amended OOC 3tAFRAetails a.First Name BRUCE b.Last Name THIBODEAU ' c.Organization TOWN OF NORTH ANDOVER DPW d.Mailing Address 384 OSGOOD STREET e.City/Town NORTH ANDOVER f.State MA g.Zip Code 01845 a.First Name b.Last Name c.Organization TOWN OF NORTH ANDOVER d.Mailing Address 120 MAIN STREET e.City/Town NORTH ANDOVER f.State MA g.Zip Code 01845 5.ProjcLocation r. a.Street Address 1653 GREAT POND ROAD b.CityfTown NORTH ANDOVER c.Zip Code 01845 d.Assessors Map/P1at#62 e.Parcel/Lot# 22 f.Latitude 42.71426N g.Longitude 71.10007W 6.Property recorded at the Registry of Deed for: a.County b.Certificate c.Book d.Page NORTHERN ESSEX 1268 299 7 Dates ,,.,,, a.Date NOI Filed:4/15/2015 b.Date Public Hearing Closed: 5/13/2015 c.Date Of Issuance: 5/14/2015 8.FinatQipproved Plans and Other Documents a.Plan Title: b.Plan Prepared by: c.Plan Signed/Stamped by: d.Revised Final Date: e.Scale: SEWER SYSTEM IMPROVEMENTS WOODARD& (SHEETS G001, CURRAN JACOB C.TROIDL 4/27/15 1"=10' C101-103,&C501- 504) Page 1 of 10*ELECTRONIC COPY 1 4 Massachusetts Department of Environmental Protection Provided by MassDEP: Bureau - MassDEP File#:242-1650 WPA Form of Resource 5- Order Protection of Conditions Wetlands eDEP Transaction#:738804 Massachusetts Wetlands Protection Act M.G.L.c. 131,§40 City/Town:NORTHANDOVER e.c/y dredged f.c/y dredged 7.El Bordering Land Subject to Flooding 1450 1450 0 0 a.square feet b.square feet c.square feet d.square feet Cubic Feet Flood Storage 0 0 0 0 e.cubic feet f cubic feet g.cubic feet h.cubic feet 8.r Isolated Land Subject to Flooding atsqua e feet b square feet Cubic Feet Flood Storage c.cubic feet d.cubic feet e.cubic feet f.cubic feet 9.D Riverfront 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 1 g.square feet h.square feet i.square feet j.square feet t Coastal Resource Area Impacts: Resource Area Proposed Permitted Proposed Permitted Alteration Alteration Replacement Replacement 10.C Designated Port Areas Indicate size under Land Undei the Ocean,below t 11.C Land Under the Ocean a.square feet b.square feet c.c/y dredged d.c/y dredged t 12.IT Barrier Beaches Indicate size under Coastal Beaches and/or Coastal Dunes below t 13.C Coastal Beaches i a.square feet b.square feet c.c/y nourishment d.c/y nourishment 14.C Coastal Dunes a.square feet b square feet of c/y nourishment d dy nourishment 15.C Coastal Banks , a.linear feet b.linear feet i 16.C Rocky Intertidal Shores E. a square feet b.square feet 17.17 Salt Marshes a.square feet b.square feet c.square feet d.square feet 18.C Land Under Salt Ponds a.square-feet b.square feet c.c/y dredged d:c/y dredged Page 3 of 10*ELECTRONIC COPY t g 1" .rrr.. Massachusetts Department of Environmental Protection Provided by MassDEP: Bureau -Wetlands MassDEP File#:242-1650 WPA Form of Resource 5-Order of Protection Conditions eDEP Transaction#:738804 Massachusetts Wetlands Protection Act M.G.L.c. 131, §40 C1t TFown:NORTH ANDOVER until all proceedings before the Department have been completed. 9. 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 the 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. 10. 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:"242-1650" 11. 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 Mass DEP. 12. Upon completion of the work described herein,the applicant shall submit a Request for Certificate of Compliance(WPA Form 8A)to the Conservation Commission. 13. The work shall conform to the plans and special conditions referenced in this order. 14. Any change to the plans identified in Condition#13 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. 15. 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. 16. 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. 17. 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. 18. All sedimentation bathers 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 bathers shall serve as the limit of work unless another limit of work line has been approved by this Order. NOTICE OF STORMWATER CONTROL AND MAINTENANCE REQUIREMENTS 19. The work associated with this Order(the"Project")is(1) roi is not(2)❑ subject to the Massachusetts Stormwater Standards. If the work is subject to Stormwater Standards,then the project is subject to the following conditions; a) All work,including site preparation,land disturbance,construction and redevelopment,shall be implemented in accordance with the construction period pollution prevention and erosion and sedimentation control plan and,if applicable,the Stormwater Pollution Prevention Plan required by the National Pollutant Discharge Elimination System Construction General Permit as required by Stormwater Standard 8.Construction period erosion,sedimentation and pollution control measures and best management practices(BMPs)shall remain in place until the site is fully stabilized b) No stormwater runoff may be discharged to the post-construction stormwater BMPs unless and until a Registered Professional Engineer provides a Certification that:i.all construction period BMPs have been removed or will be removed by a date certain specified in the Certification.For any construction period BMPs intended to be converted to post construction operation for stormwater attenuation,recharge,and/or treatment,the conversion is allowed by the MassDEP Stormwater Page 5 of 10*ELECTRONIC COPY .10 Massachusetts Department of Environmental Protection Provided by MassDEP: Bureau of Resource Protection-Wetlands MassDEP File#:242-1650 WPA Form 5- Order of Conditions eDEP Transaction#:738804 Massachusetts Wetlands Protection Act M.G.L.c. 131,§40 CitylTown:NORTHRNDOVER stormwater BMPs shall include access gates and shall be at least six inches above grade to allow for wildlife passage. Special Conditions: SEE ATTACHED. g'. } Page 7 of 10*ELECTRONIC COPY Massachusetts Department of Environmental Protection Provided by MassDEP: Bureau of Resource Protection-Wetlands MassDEP File#:242-1650 WPA Form 5-Order of Conditions eDEP Transaction#:738804 Massachusetts Wetlands Protection Act M.G.L.c. 131, §40 City/Town:NORTHANDOVER E. Signatures This Order is valid for three years from the date of issuance,unless otherwise specified pursuant to General Condition#4.If this is an Amended Order of Conditions,the Amended 1.D of Ori al Order Order expires on the same date as the original Order of Conditions. Please indicate the number of members who will sign this form.This Order must be signed by a majority of the Conservation Commission. 2.Num r 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 Protection Regional Office,if not filing electronically,and the property owner,if different from applicant. Signatures: / 141/ IMO joL /4,4, I'�Gcltxti l a��� C by hand delivery on I—by certified mail,return receipt requested,on Date Date F. Appeals 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 for 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 t' sent by certified mail or hand delivery to the Conservation Commission and to the applicant,if he/she is not the appellant r 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 t` the Conservation Commission prior to the close of the public hearing,requesting a Superseding Order,or providing written information to the Department prior to issuance of a Superseding Order. 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 Actor regulations,the Department has no appellate jurisdiction. Page 9 of 10*ELECTRONIC COPY INN • DEP FILE#242 - 1650 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. I GENERAL CONDITIONS I 20. The proposed work within jurisdiction includes: construction of a new sewer pump station(wet well/drywell configuration with bypass provisions),pad-mounted transformer with utility containment and diesel generator. Relocation of the access drive,removal of the existing station, restoration of prior pump station area to parking area for Rea's Pond open space and mitigation plantings are also proposed. All work is within the Buffer Zone to Bordering Vegetated Wetland (BVW) and Inland Bank associated with Rea's Pond and Lake Cochichewick. Pump station removal and restoration activities are with Bordering Land Subject to Flooding(BLSF). The entire project is located within the Watershed Protection District and the Zone A to Lake Cochichewick, North Andover's drinking water supply. 21. The work shall conform to the following(except as noted in the remainder of this document where revisions may be required): Applicant: Bruce Thibodeau Town of North Andover, Division of Public Works 384 Osgood Street North Andover, Massachusetts 01845 Property Owner: Town of North Andover 120 Main Street North Andover, MA 01845 Notice of Intent filed by Jack Troidl £' Woodard &Curran 980 Washington Street, Suite 325 Dedham, MA 02026 Date filed: April 10, 2015 Site Plans prepared by Woodard &Curran Titled: Sewer System Improvements (Sheets G-000-001, C-101-103, C502-204,) Last Revised: 4/27/15 Stamped by Jack Troidl,P.E. 242-1650, 1653 Great Pond Rd-Rea's Pond Pump Station! NACC 5/14/2015 DEP FILE#242 - 1650 29. 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. 30. 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. 31. Any future project which proposes a wetland crossing in order to access certain portions of the property will not be qualified as a limited project roadway under 310 CMR 10.53(e). 32. The following wetland resource areas are affected by the proposed work: Bordering Land Subject to Flooding and Buffer Zone to Bordering Vegetated Wetland and Inland Bank. These resource areas are significant to the interests of the Act and Town ByLaw as noted above and therein. The applicant has not attempted to overcome the presumption of significance of these resource areas to the identified interests. 33. The NACC agrees with the applicant's delineation of the wetland resource areas on the site as shown on the plans dated and referenced herein (#A1-#A41 and Bank Flags #1-#20). 34. The NACC finds that the intensive use of the upland areas and buffer zone proposed on this site will cause further alteration of the wetland resource areas. In order to prevent any alteration of wetland resource areas a twenty five foot(25') No- Disturbance Zone and a fifty foot(50') No-Construction Zone shall be established from the edge of the adjacent wetland resource area except as previously developed and shown on the plans referenced herein. The Conservation Administrator and/or other agents of the NACC do not have the authority to waive these setbacks as established under the local bylaw. No disturbance of existing grade, soils or vegetation is d, permitted in the No-Disturbance zone. (See Section 3.4 &Appendix F of the local Regulations). 35. To restore the No-Disturbance Zone, the applicant proposes to plant shrubs in areas designated A, B & C and seed with a native seed mix. The plantings shall be monitored for one full year and replaced as necessary. Prior to the issuance of a Certificate of Compliance,the area shall be confirmed to have re-vegetated with at least 75% native species. The new No-Disturbance Zone/edge of parking area will be demarcated by large boulders. 36. 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 242-1650, 1653 Great Pond Rd-Rea's Pond Pump Station3 NACC 5/14/2015 DEP FILE#242 - 1650 42. 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. 43. Prior to any work commencing on-site, the applicant shall submit to the NACC for approval,a detailed and dated sequence of construction,including the installation of sedimentation/erosion control devices, demolition, drainage installation,mitigation plantings and all other work planned through final stabilization. 44. 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 erosion controls or temporary fencing and shall be confirmed by the NACC. Such barriers 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 45. A minimum 12"coir log backed by trenched siltation fence (biodegradable coir log,no plastic netting) shall be placed between all construction areas and wetlands. The erosion control barrier will be properly installed and placed in the location shown on the plans approved and referenced herein and shall be inspected and approved by the NACC or its agent 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 or its agent. The NACC reserves the right to impose additional conditions on portions of this project to mitigate any impacts 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 Commission's request. fi 46. Silt sacks will be placed in catch basins within 100-feet of the work. 47. The applicant shall have on hand at the start of any soil disturbance, removal or stockpiling ten (10) straw bales (or equivalent length of filter sock- 1 bale =3 feet) and sufficient stakes for staking these bales. Said bales/sock shall be used only for the control of emergency erosion problems and shall not be used for the normal control of erosion. 242-1650, 1653 Great Pond Rd-Rea's Pond Pump Stations NACC 5/14/2015 DEP FILE#242 - 1650 permanent markers are subject to review and approval by the NACC. The applicant shall instruct all agents to explain these markers to buyers/lessees/landscapers and all persons taking over the property from the applicant. These markers shall remain posted and be replaced as necessary in perpetuity. Markers may be obtained at the Conservation Department($2 round/$3 square). 52. 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 prior to the closing of said land transaction. 53. 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,the erosion control monitor 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 of the pre-construction meeting (e.g. 72 hours). STORMWATER MANAGEMENT CONDITIONS 54. All construction and post-construction stormwater management shall be conducted in accordance with supporting documents submitted with the Notice of Intent and as part of the public hearing process,the Department of Environmental Protection Stormwater Management Policy and as approved by the NACC in this Order of Conditions. 55. 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 242-1650, 1653 Great Pond Rd-Rea's Pond Pump Station? NACC 5/14/2015 DEP FILE#242 - 1650 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 63. A stone construction entrance shall be installed as detailed in the approved plans and refreshed as necessary until final paving. Associated pavement and roadways shall be swept at least weekly or as directed by the Erosion Control monitor, the Site Supervisor, Project Manager, or Conservation staff for as long as the site remains exposed and un-stabilized. If material is tracked beyond the construction entrance onto the adjacent roadway,it will be swept up daily. 64. 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 1 of the foregoing. 65. All exposed soil finish grade surfaces shall be immediately landscaped (native shrubs/seed mixes) and stabilized, or loamed, seeded and mulched,with a layer of G; mulch hay or matting(natural fibers only). All disturbed areas must be graded, loamed and seeded prior to November 1st of each year Outside of the growing season, exposed soil finish grade surfaces shall be stabilized with a layer of mulch hay or matting 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. s 66. 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. }: 67. There shall be no stockpiling of soil or other materials within fifty (50) feet of any resource area Stockpiled materials shall be maintained within erosion controls. 68. Washings from concrete trucks, or surplus concrete,shall not be directed to, any drainage system, or wetland resource area If truck washing is to be done on site an area shall be designated and approved by the Conservation Department. 69. All waste generated by, or associated with, the construction activity shall be contained within the limit of work, 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. However,no trash dumpsters will be allowed within 50' of areas subject to protection under the Act or local ByLaw. 242-1650, 1653 Great Pond Rd-Rea's Pond Pump Station9 NACC 5/14/2015 `'` v DEP FILE#242 - 1650 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 1 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 i t ` compliance is to be granted. i 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 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. fl i. An"As-Built" plan prepared and signed and stamped by a Registered Professional Civil Engineer (P.E.) (and/or Registered Professional Land Surveyor if appropriate) 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. Specifically, "As-Built" plans should include inverts of all drainage structures above and below grade, and an engineer's certification that the 4 drainage system has been constructed and is functioning in accordance with the approved design. NOTE: If portions of the stormwater systems exist partially within the Buffer Zone then 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. > 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 any disturbance of soils or vegetation. > Location of all subsurface utilities entering the property. 79. The following special conditions shall survive the issuance of a Certificate of Compliance (COC) for this project: > 25' No-Disturbance Zone and a 50' No-Construction Zone shall be established from the edge of adjacent wetland resource areas except as approved under DEP # 242-1650. Future work within 100' of existing 242-1650, 1653 Great Pond Rd-Rea's Pond Pump Station1 l NACC 5/14/2015 • DEP FILE#242 - 1650 ,:: APPENDIX A-AFFIDAVIT L on oath do hereby depose and state: (authorized agent applicant and/or current owner) (PLEASE CHECK AT LEAST ONE BLOCK) 1. Iamthe of (position with applicant) (applicant name or company name) the applicant upon whom Order of Conditions have been placed upon by (DEP or NACC number) the North Andover Conservation Commission. &/or 2. I am the of (position with owner) (owner name) the owner upon whose land Order of Conditions have been placed up by (DEP or NACC number) the North Andover Conservation Commission. & 3. I hereby affirm and acknowledge that I have received said Order of Conditions ,. and have read the same and understand each N` (DEP File#) and every condition which has been set forth in said Order of Conditions. & 4. I hereby affirm and acknowledge that on this day of 19 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 Order of Conditions are presently in compliance. (DEP File#) & 5. I hereby affirm and acknowledge that this document will be relied upon by the North Andover Conservation Commission as well as any potential buyers of said property which is subject to said Order of Conditions (DEP File#) , Signed under the pains and penalties of perjury this day of 19 . (Signature-authorized agent of applicant or owner) 242-1650, 1653 Great Pond Rd-Rea's Pond Pump Station 13 NACC 5/14/2015 STORMWATER MANAGEMENT SYSTEM OPERATION &MAINTENANCE PLAN This Stormwater Management System Operations & Maintenance Plan (the Plan) outlines measures that are essential for maintaining an effective stormwater management system at the Rea's Pond Pumping Station located on Great Pond Road, North Andover, Massachusetts (the Site). Periodic and scheduled inspections and maintenance measures are recommended to prevent deficiencies and for proper performance of the stormwater management system. Failure to implement these measures can reduce the hydraulic capacity and the pollutant removal efficiency of stormwater measures resulting in a poor quality of stomiwater runoff discharging from the Site. RESPONSIBLE PARTY&ESTIMATED ANNUAL BUDGET The party responsible for implementing this Plan and identifying the source of necessary funds is as follows: Division of Public Works 384 Osgood St. North Andover,MA 01845 (978)685-0950 The estimated annual budget for implementing this Plan is$750.00. INSPECTIONS&MAINTENANCE MEASURES The stormwater management system at the Site comprises of an inlet forebay, a proprietary separator catch basin and subsurface infiltration units.The inlet forebay will collect sheet flow from the driveway surface and will serve as a debris catchment prior to entering the proprietary separator. The proprietary separator will separate oil, grease and sediments prior to discharging to the infiltration devices. The infiltration devices recharge the stormwater into crushed stone beds. In the event of a 100-year storm event, the infiltration devices will overflow through an orifice and discharge to a gravel-filled level spreader.Measures are illustrated on the Stormwater Management System figure in Attachment A. } An Inspection Form is provided in Attachment B that is recommended for use during inspections of the stormwater management system. The form includes a table that outlines specific inspection and maintenance measures, in addition to the following information that can be updated by the inspector during the inspection: • Name of inspector • Name of the site and its location • Date and time of inspection • Weather conditions during inspection • Outline of items inspected • Condition of the stormwater management system, including corrective measures taken to maintain the system Completed Inspections Forms should be kept at the Site to enable both facility managers and regulatory agencies to ensure that operation of the system is in compliance with permit requirements. Rea's Pond Pump Station April 2015 North Andover,Massachusetts p q1 STORMWATER MANAGEMENT SYSTEM INSPECTION FORM Town Of North Andover, MA Division of Public Works Rea's Pond Pumping Station North Andover, Massachusetts 01845 Name of Inspector: Date/Time: Weather: Date of Last Inspection: Items Inspected(Refer to Table 1. Provide additional sheets if necessary): A: I 55i rt Comments&Corrective Actions Taken (Provide additional sheets if necessary.): Rea's Pond Pump Station April 2015 North Andover,Massachusetts F' Table'I-Operations&Maintenance Measures Objective:Collect sheet flow from impervious surfaces and drain into Proprietary Separator;No credit for treatment Frequency Measure . Monthly • Inspect inlet forebay Four Times per • Clean inlet forebay Year and After Heavy Rainfall Events Objective:Preserve the hydraulic detention and removal efficiency of the Pre-treatment Water Quality Device Frequency Measure Annually2 • Service unit by removing sediment and oil accumulated Every 6 months • Inspect units and remove debris • Check oil and sediment depth using the dipstick tube(refer to Owner's Manual) During and • Inspect units and remove debris After Heavy • Check oil and sediment depth using the dipstick tube(refer to Owner's Manual) Rainfall Events 2 At a minimum, service annually. May need additional cleaning after periods of heavy rainfall or if conditions exist that fill the a.. device more frequently. Objective:Preserve the hydraulic detention and removal efficiency of the Infiltration Trench Frequency Measure Every 6 months • Inspect units and remove debris • Remove sediment from pretreatment BMPs • Remove burrowing animals in accordance with State or local animal control requirements. During and • Inspect units and remove debris After Heavy • Inspect pretreatment BMPs Rainfall Events Rea's Pond Pump Station April 2015 North Andover,Massachusetts