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HomeMy WebLinkAboutStormwater Report - 100 DALE STREET 4/26/2013 .>', -i v i r o n rri e l"It a Egg�estor-i Ei April 26, 2013 North Andover Planning Board 1600 Osgood Street North Andover, MA 01845 Attn: Judy Tymon, Town Planner RE: Storrnwater Review 100 Dale Street WSP Dear Ms. Tymon and Board Members: Per your request, I have conducted a technical review of the April 4, 2013 Watershed Special Permit Application packet submitted by Christiansen & Sergi, Inc. for the above- referenced project. Included in the materials I received and reviewed were the following: • Watershed Special Permit Application, 100 Dale St, Lots I and 2, Messina Development Corp., prepared by Christiansen & Sergi, Inc. and dated April 4, 2013. • Site Development Plan for Watershed Special Permit (I sheet), 100 Dale Street, Applicant: Messina Development, prepared by Christiansen & Sergi, Inc. and dated April 4, 2013. My primary focus in this technical review is on the overall stormwater management approach and design concepts used in the project, as well as its compliance with the Town of North Andover's zoning requirements for Watershed Protection Districts, the Massachusetts Department of Environmental Protection (DEP) Storrnwater Management Standards and Regulations, and the North Andover Wetlands Bylaw. It is my understanding that either a Notice of Intent (NOI) application or an Abbreviated Notice of Resource Area Delineation (ANRAD) has been or will be filed for this project with the Conservation Commission. My review is aimed at assisting both the Planning Board and the Conservation Commission in their respective reviews of the project. The proposed project entails the demolition of an existing single family home and construction of two new homes and driveways on two recently subdivided lots at 100 Dale Street. Both lots are located wholly within North Andover's Watershed Protection District, and portions of both lots are within the buffer zone of regulated wetiands.My comments on the proposed plan are outlined below: 1. Based on the plan, most of the proposed development on Lot I and all of the proposed development on Lot 2 is located in the Non-Discharge Buffer Zone. A portion of the proposed driveway on Lot I is shown as being within the Non- 32 Old Frarninghan�i Rd Unit 29 SLI(IbL11-Y MA 01776 tel 508.259.1137 fax 866.820.7840 100 Dale St, Stormwater Review 2 Apri126. 2013 Disturbance Zone. The boundaries of these buffer zones are based on the horizontal setback from the edge of all wetland resource areas as defined by the Wetlands Protection Act and the North Andover Wetland Bylaw. The plan should show all of the wetland areas within 400 feet of the property, and the boundaries should be confirmed by the Conservation Commission. 2. The proposed plan calls for regrading, vegetation removal and driveway construction within the Non-Disturbance Zone, all of which require a Special Permit under the Watershed Protection Regulations. In accordance with the regulations, the Applicant should provide proof that there is no reasonable location for this activity outside of the Non-Disturbance Zone, e.g. by moving the driveway to the other side of the house. 3. The Plan should also show the Zone A for the Lake Cochichewick public water supply, defined by the Massachusetts Drinking Water Regulations (310 CMR 22.02) as including the land area within a 200 foot lateral distance from the upper boundary of the bank of a tributary or associated surface water body. 4. The plan calls for infiltration of runoff through roof infiltrators and infiltration trenches adjacent to the driveways, however no soils data have been provided to document the suitability of the site for onsite infiltration. 5. Infiltration structures, including the driveway trenches, should have a minimum 10-$ setback from an abutting property. 6. 1 recommend that the creation of new lawn area be- limited to that which is absolutely necessary, and that any new landscape area be constructed in such a manner as to minimize the maintenance that is required, e.g. the soil should be well aerated, it should have a minimum of 6-inches of topsoil and, where possible, native vegetation should be planted to minimize the need for fertilizer and watering. The Board may want to request a planting or landscape plan for the lots. As with similar projects permitted within the Watershed Protection District, both the limits of approved clearing and the restriction on lawn care products should be permanently recorded on the deed to the property. 7. Ongoing maintenance of proposed stormwater management structures should be addressed. 8. A Construction Sequence aimed at minimizing the total area and duration of soil disturbance should be provided. 9. The stone used for the proposed construction entrance should be a minimum of 2- in diameter. I appreciate the opportunity to assist the North Andover Planning Board and Conservation Commission with the review of this project, and hope that this information 100 Dale St, Stormwater Review 3 April 26, 2013 is suitable for your needs. Please feel free to contact me if you or the applicants have any questions regarding the issues addressed herein. Sincerely, EGGLESTON ENVIRONMENTAL Lisa D. Eggleston, P.E. C: Jennifer Hughes, Conservation Coordinator E g g I s t c)n E v­i v`�o r­i fn e Ivt a� May 7, 2013 North Andover Planning Board i6U0 Osgood Street North Andover, M/\ 01845 Attn: Judy 7vmun, Town Planner I<B: 8toron*u1orKovic*' lO0 Dale Street VVSP Dear Ms. 7v000n and Board Members: In follow-up to my April 20, 2013 letter oo the above-referenced project, l have received and reviewed the May 6^ 2013 ,00pooxc and revised plans submitted (vin conoi0 by Christiansen 6tSergi, Inc. MyoonooneoLm are outlined below: l. The revised plan keeps all development activity out o[the Non-Disturbance Zone shown oothe plan. Ilovvovu,, it is not clear what the huaia is for the wetland � aodbucko shown on the plans and vvhotbur the vvcUnod delineations have been confirmed by the Conmncvm1ino Commission. 2. EBuaod nuMaso[]IS and Muaa[}BP`a Water Supply Protection Area mapping (see copy attached) there are tributaries tothe onudb*'est and east o{the project uito, and oportiun of the site does appear to be within Zone /\ for the tovvu`o wo1cc sopp]y. 3. }5aosd on the uoUo ruoyyiu8 aubcukicd, the aoUa on the site are expected to be Charlton and Sutton fine sandy loams of Hydrologic Soil Group (HSG) B. Given that dbcao soils are g000roUy well suited for infiltration and that the proposed infiltration nirouto,om will be at or only slightly below existing grade, [ agree that confirmatory soil testing does not need to be done at this time and could be made o condition ofapproval. 4. Consideration abon|d bc given to routing the utilities up the driveways tneach house 10 reduce the area of clearing needed. 5. As indicated in my previous coznnncu{a, the Board may also want to request o p|uzdlug or landscape plan for the lots, and both the limits of approved o|nudng and the restriction ou lawn care products should bo permanently recorded onthe deed to the property. ]7 Old FrD0inghGrnRd Unit 29 SUdhU[yMA 01776 Le[ 5A8.259.1137 fax 866.820.7840 100 Dale St, Stormwater Review 2 May 6, 2013 6. Maintenance requirements for the stormwater management systems have been added to the plan; however there should be a more suitable way to ensure that the information is conveyed to successive property owners. Once again, I appreciate the opportunity to assist the North Andover Planning Board and Conservation Commission with the review of this project, and hope that this information is suitable for your needs. Please feel free to contact me if you or the applicants have any questions regarding the issues addressed herein. Sincerely, EGGLESTON ENVIRONMENTAL s e— Lisa D. Eggleston,P.E. C: Jennifer Hughes, Conservation Coordinator as PA. 4r I fA CL Ole n �9, r f f t i f � f y. f 111 1 y 1` f oar �a j L f J � ji 4�1 .4 1 � (/] C f 4 ~ r Egg Env^ronnieritaK May 20, 2013 North Andover Planning Board l000 Osgood Street North Andover, MA 0l845 Attn: Judy Tymon, Town Planner KB: S1oronvmtcrOevievv l605 Great Pond Road WSP Dear Ms. 7vrnou and Board Members: Per your [cgucmt^ ] have conducted o1nobuical review of the March 28, 2013 Watershed Special Permit Application packet submitted by Andover Consultants, Inc. foi-the above- referenced project. Included in the roatcrin|o l received and reviewed were the thUop/lug: • Watershed Special Permit Application, 1665 Great Pond Rd Lot B, Todbuioa| Training Foundation Trust, Petitioner, prepared by Andover Consultants, Inc. and dated M� h28' 2O|3 March . � � • Site Plan, Great Pond Road, prepared for Technical Training Foundation Trust by � Andover Consultants Inc. and dated March 28` 20l3. My primary focus in this technical zsviovv is on the overall etoonvvo1cr ruoongeonco1 � � approach and design concepts used in the project, as well as its compliance with the | Town nfNorth /\ndnvcr`n zoning requirements for VVotoohod Protection Districts, the Massachusetts Wetlands Protection Act and Rsgula1inoa, and the North Andover \9ct|uudo Bylaw. It is my understanding that obbsr o Y4o1ioo of Intent (NOD application ornn Abbreviated Notice ofResource Area Delineation (AN|{AD) has been or will bo . filed with the Conservation C000cniaaioo for this project. My review is aimed at assisting both the Planning Board and tile Conservation Commission in their respective reviews of the project. The proposed project entails the construction ofn single family home and driveway oou mostly vacant lot. The 1o1 is p/bo||y vvkbio North Andover's VVa1e,sbcd Prcdoo1iou District, and portions of the lot are also within the buffer zone of regulated wetlands. My comments oo the proposed plan are outlined below: l, Tile proposed development activity is located within Non-Disturbance and Non- Discharge Zones of the VVo(cohed [)imido1. U is my understanding that this lot was created before October 24, 1994, lience the limitations of the General Zone of the Watershed Protection District regulations do not apply. As xbuvvo, the project includes s|nuriug` grading and construction of paved driveway and 0000ciu1od 320idF[8OOinQh80RdUnit 29 SUdbUryM4 01776 tei5O8.25q.1137 fax 866.820.7840 1665 Great Pond Rd WSP, Stormwater Review 2 May 20, 2013 drainage structures within the Non-Disturbance Zone and construction of a new house within the Non-Discharge Zone. Regrading and vegetation removal are allowable in the Non-Disturbance Zone only by Special Permit. Construction of a new permanent structure within the Non-Disturbance Zone is also allowed only by Special Permit and only after a variance has been granted by the Zoning Board of Appeals. I believe that a driveway would be considered a permanent structure under the Town's Zoning Bylaw;therefore a variance from the ZBA is needed for this project. 2. The boundaries of these buffer zones are based on the horizontal setback from the edge of all wetland resource areas as defined by the Wetlands Protection Act and the North Andover Wetland Bylaw. It is not clear whether the wetland boundaries shown on the plan have been confirmed by the Conservation Commission, e.g. through an ANRAD or NOI. 3. The Plan should also show the Zone A for the Lake Cochichewick public water supply, defined by the Massachusetts Drinking Water Regulations (310 CMR 22.02) as including the land area within a the land area within a 400 foot lateral distance from the upper boundary of the bank of a Class A surface water source and 200 foot lateral distance from the upper boundary of the bank of a tributary or associated surface water body. 4. The Plan should show the proposed edge of vegetation clearing/limit of work. While much of the proposed development area is already cleared, the creation of any new lawn or landscaped area should be limited to that which is absolutely necessary and constructed in such a manner as to minimize the maintenance that is required, e.g. the soil should be well aerated, it should have a minimum of 6- inches of topsoil and, where possible, native vegetation should be planted to minimize the need for fertilizer and watering. The Planning Board may also want to request a planting or landscape plan for the property. 5. As with similar projects permitted within the Watershed Protection District, both the limits of approved clearing and the Board's standard restriction on lawn care products should be permanently recorded on the deed to the property. 6. The narrative indicates that roof runoff from the proposed house will be directed onto lawn areas for infiltration; however it is not clear from the plan how this is to be accomplished. 7. The plan calls for driveway runoff to drain to a stone trench along the northern edge of the driveway, which in turn drains to a 60-ft flat swale at the base of the driveway (within the 100-ft buffer zone). The plan also calls for a 8-in overflow pipe from the swale under the driveway, discharging toward Great Pond Road. It is not clear why this overflow pipe is needed, as the trench and swale should be designed to handle all of the runoff fi•om the proposed driveway. 1665 Great Pond Rd WSP. Storm ater Review 3 May,20, 2013 8. Given its nearly 10 percent grade, I recommend adding check dams in the stone trench to slow the rate of flow and promote infiltration. 9. A design detail for the proposed swale is needed. Given its proximity to wetland resource areas and the town's water supply the swale should be designed to maximize water quality treatment and promote infiltration, e.g. incorporating a bioretention area with an overflow swale. 10. Ongoing maintenance and preservation of the proposed stormwater management structures should be addressed. I appreciate the opportunity to assist the North Andover Planning Board and Conservation Commission with the review of this project, and hope that this information is suitable for your needs. Please feel free to contact me if you or the applicants have any questions regarding the issues addressed herein. Sincerely, EGGLESTON ENVIRONMENTAL Lisa D. Eggleston, P.E. C: Jennifer Hughes, Conservation Coordinator Enright, Jean From: Tvmor\ ]udv Sent: Tuesday,June ll, JO134]2PK4 To: Phil Christiansen (phi|@csi'engcmom) Subject: l0O Dale St. Phil, Here are Lisa's final comments. As you know,we talked about the utilities not running up the driveway at the last meeting and the landscaping has been provided. | do need a separate O&M document from you. Thanks Judy Judy, FYI, | looked at the May 23 d plan for Dale St and am pretty much okay with the revisions. Everything has been pulled out of the Non-Disturbance Zone.The mapped soils look to be pretty good, so I think it is reasonable to condition the testing for the infiltration structures. If the Board is concerned about it I do think the area of disturbance could be tightened up a bit, e.g. by running utilities up the driveway and pulling back on the lawn area a bit. I presume the limit of work will also be recorded on the deed as a permanent restriction. Did you request landscape plans for the project, or is the note on the plan,together with your conditions/deed restrictions,Sufficient? Also, the {]&M has been added to the plan, but should also be conveyed to subsequent homeowners in a fashion that � they will see and read it. Judith K4.Tymnon Town Planner Town of North Andover 12O Main Street North Andover,MA 01845 Phone 978688.9535 Fax 978.688,9542 � Email Web 1