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Home My WebLink About04032018 Waiver Request - Application - 660 GREAT POND ROAD 4/3/2018 andover 1 East River Place consultants Methuen, Massachusetts 01844 7 Tel. (978) 687-3828 Fax (978) 686-5100 www.andoverconsultants.com February 15, 2018 North Andover Planning Board c/o Monica Gregoire Town Offices 120 Main Street North Andover, MA 01845 RE: 660 Great Pond Road Watershed Special Permit Waiver Request Dear Ms. Gregoire and Members of the Board: On behalf of the applicant, Rolling Ridge Retreat and Conference Center,please find the materials listed below in support of a Waiver Request from the Watershed Special Permit. • Two Full Size copies of the Site Plan, dated February 14, 2018 • Four 1 lxl7 copies of the Site Plan, dated February 14, 2018 • 5 Project Narratives/Waiver Request memo with attachments. • Electronic copy of the above materials. We are looking forward to discussing this project with the Board Members at the Boards February 28tt, meeting. 2018 If you have any questions concerning this request, or require anything further,please feel free to contact us at your convenience. Sincerely, ANDOVER CONSULTANTS, INC. (Je�t� �� 4�1�a �- Dennis A. Griecci,P.E., LEED AP Enclosures Cc: Applicant PA18\18-02\doc\lttas\2018-02-15_1?laming Cova U"d .doc Civil Engineers + Land Surveyors Land Planners Waiver Request for Watershed Protection District Special Permit 660 Great Pond Road North Andover, Massachusetts February 14, 2018 Prepared for: Rolling Ridge Retreat and Conference Center United Methodist Church 640 Great Pond Road North Andover, MA 01845 Prepared By: Wandover consultants 1 East River Place Methuen, MA 01844 978-687-3828 P U8U8-02\docs\planning\Waivcr Request_660 Great Pond Road.docx Site & Project Description The proposed project is requesting a waiver from the requirements of the Watershed Protection District special permit under Section 4.136 Section 8 of the Town of North Andover's Zoning Bylaw. The proposed project meets the criteria for a waiver request, as the driveway currently exists and the limits or width of the driveway will not expand, the proposal does not impact sewer services, and the project will not alter topography. Additionally,the Applicant will agree to Town Planner site inspections and that the Town Planner can stop construction if the proper erosion control is not in place, as outlined in section 4.136 Section 8 of by Bylaw. The proposed project involves the repaving and paving of a portion of the existing paved and compacted gravel access drive at 660 Great Pond Road leading to the Rolling Ridge Retreat and Conference Center (Rolling Ridge). Rolling Ridge is situated on an approximate 36.2 acre parcel on Lake Cochichewick in North Andover, Massachusetts. The property is depicted on North Andover Assessor map 63 Lot 11 and created by a deed dated November 9, 1928 (prior to October 24, 1994) and located along the southerly side of Lake Cochichewick. Wetlands located on or adjacent to the site and the mean high water of the Lake Cochichewick were flagged by Norse Environmental Services and located by instrument survey by Findeisen Survey & Design Inc. The site is located within the Surface Water Supply Watershed (Watershed Protection Overlay District) as mapped on the Town of North Andover's "Lake Cochichewick Watershed Map". The proposed repaving will cover approximately 12,900 square feet and will also include the addition of a grassed swale to capture and treat stormwater runoff. The swales will offer stormwater treatment and promote recharge on site, which is currently not available with the broken asphalt/gravel driveway. Additionally, the paved driveway and swale will limit the continued flushing of silt and sediment from the current access driveway to nearby resources areas. The proposed repaving will match the existing slope of the driveway; therefore no topography will be altered. As the driveway currently exists, it is a combination of broken pieces of asphalt, underlying exposed gravel, dirt, and crushed stone. Rolling Ridge has maintained the driveway to the extent practicable in its current state to allow for visitors to access the main building. As the existing paved/gravel drive has further failed, it has become increasingly difficult to navigate the driveway in its current form, especially during winter and spring months when the conditions can be wet and muddy with ruts and gullies. Pictures of the current driveway are attached to this narrative. All proposed work will take place greater than 400' from Lake Cochichewick and outside of the Non-Disturbance (250') and the Non-Discharge (325') zones from Lake Cochichewick. Additionally, all work will be outside of the 100' Non Disturbance buffer zone from the edge of wetland resources areas. However, work will take place within the 325' Non-Discharge Buffer zone of wetland resources areas within the Watershed District. No wetland resource areas will be disturbed as part of the proposed work, and as P:\18\18-02\does\planning\Waiver Request_660 Great Pond Road.doex previously stated, all work will be greater than 100' from the wetland resource areas. Wetland resource areas will be protecting during paving operations via haybale barriers shown on the Site Plan, prepared by Andover Consultants, Inc. No work is proposed within estimated habitats of rare wetlands wildlife, and there are no certified vernal pools on or near the lot according to the Natural Heritage and Endangered Species Program website. A copy of the Estimated Habitat map is attached A copy of the Flood Insurance Rate Map is attached. The parcel is not in the floodplain per Flood Insurance Rate Map 25009CO229F, dated July 3, 2012. A copy of the FIRM is attached to this narrative. Soils on the lot were mapped by the USDA Natural Resources Conservation Service (MRCS) as Charlton fine sandy loam (Hydrologic Soil Group B) and Sutton fine sandy loam(Hydrologic Soil Group B), both soils have a moderate infiltration rate when thoroughly wet. A copy of the web soil survey map is attached to this narrative. 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M ��?� 6' r @ � �3w g �',� ��" •y't e k :?� � q "'q� � c� .mod CL 0- 0 v � Y y. k CL b}'i3 i O a clJ " , ti x p � a, 40 Aq Ak H tT$'s�'�' *a }. �< .J g:�`�ib � r � Eg � `� v rr. ,` .b 1r�� p ,� pQ r >+# as r' x+ v` a f � 4 w 4k i� I`\I 1 k ;604 co cU 660 Great Pond Road Figure NHESP Certified Vernal Pools, Priority Habitats of Rare Species and Estimated Habitats of Rare Wildlife J Cors rvi tion(Recreation y' Areas of Critical Environmental Concern ACEC +J _l Community Preservation Act --j j Natural Heritage Data Bdl lap2 aNHESo Ecoregfons "�FIHESP Certfied Vemal Pools � t PJHESP Estimated Habitats o`Rare 4�Idlife `� 4 >h1HESP Natural Communities �4 tdHESP Prior by Habitats of Rare Species Potential Varnal Pool +1 j Office at Fishing and Boating.i[CCSS.,ices fJ j Qpenspace J j The Scenic Landscape Inventory J _i Trails r� Active Data Layers Check all Un haek all Remove 62 � S`T w F �y ' lHE;p�a !!ad Vernal Pools V.NHESP Priority Habitats of Rare Species � � o{ IN NHESP atural Con uni le t Ilui `t ,el MHE SP Estimated Habitats of Rare 1 ildlife Gi bl- r A 41 B +, f°' '� „..,.� ,r..�, f�+ +!I Tax Parcels for Query Detailed Pastures V,Tax Parcels oT ,,✓' ,+' Structured MANIDOV ER/ 747 Legend NHESP Certified Vernal Pool Y .NHESP Priority Habitats of Rare Species >>z •? 36 �� GGal PIS {aY ' tih,^mom, 't ,,,,,�, `\ :NHESP Natural Communities r 49 63 NHESP Estimated Habit of Rare Wildlife 61 a< `A Tax Parcels for Query \ \ F 1 y.+flL ; '�^ t,?'r+ssss6l T a gtaF:r Fe.ire;Sa.�amsF" e t+ Basetnaps. _ National Flood Hazard Layer FIRMette UFEMA Legend 42°41'54.45"N SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Without Base Flood Elevation(BFE) Zone A,V,A99 'SPECIAL FLOOD With BFE or Depth � HAZARD AREAS Regulatory Floodway zone AE,AD,AH,VE,AR 0.2%Annual Chance Flood Hazard,Area of 1%annual chance flood with average depth less than one foot or with drainage areas of less than one square mile zoo-x Future Conditions 1%Annual APPROXIMATE LOCATION - Chance Flood Hazardzon-x F PROPOSED PAV I N Area with Reduced Flood Risk due to OTHER AREAS OF Levee,See Notes.zoo-x FLOOD HAZARD " Area with Flood Risk due to Levee zone O NO SCREEN Area of Minimal Flood Hazard zone x Effective LOMRs OTHER AREAS Area of Undetermined Flood Hazard zon- GENERAL '——' Channel,Culvert,or Storm Sewer STRUCTURES IIIIIIIIIIIII Levee,Dike,or Floodwall e 20`2 Cross Sections with 11/6 Annual Chance ° 17•s water Surface Elevation — — Coastal Transect mm•-513 Base Flood Elevation Line(BFE) Limit of Study K Jurisdiction Boundary —--- Coastal Transect Baseline OTHER _ Profile Baseline FEATURES Hydrographic Feature El Digital Data Available N No Digital Data Available MAP PANELS ElUnmapped ' This map complies with FEMA's standards for the use of digital flood maps if it is not void as described below. The base map shown complies with FEMA's base map accuracy standards The flood hazard information is derived directly from the authoritative NFHL web services provided by FEMA.This map was exported on 2J13j2018 at 5:40.12 PM and does not reflect changes or amendments subsequent to this date and time.The NFHL and effective information may change or become superseded by new data over time. This map image is void if the one or more of the following map elements do not appear:base map imagery,flood zone labels, legend,scale bar,map creation date,community identifiers, cn FIRM panel number,and FIRM effective date.Map images for unmapped and unmodernized areas cannot be used for c°a regulatory purposes. ® U ® ero I , I d h I U•s F m If y Feet 1:6,000 42°4l'28.01"N 0 250 500 1,000 1,500 2,000 Hydrologic Soil Group—Essex County, Massachusetts, Northern Part (660 Great Pond Road) 328500 328600 328700 32M 328900 329000 329100 42-42!5'N 42o 42'YN milliMah may not he valid at t+his scale. 42-41'34 42-41'34'N 328E0D 328600 328700 328800 328900 329000 329100 Map Scale:1:4,620 if printed on A podnk(8.5"x 11")sheet Meters N 0 50 100 200 300 Feet 0 200 400 800 1200 Map projection:Web Mercator Comer coordinates:WGS84 Edge tics:UFM Zone 19N WGS84 usDA Natural Resources Web Soil Survey 1/30/2018 Conservation Service National Cooperative Soil Survey Page 1 of 4 Hydrologic Soil Group—Essex County,Massachusetts, Northern Part (660 Great Pond Road) MAP LEGEND MAP INFORMATION Area of Interest(AOI) El C The soil surveys that comprise your AOI were mapped at Area of Interest(AOI) E3 C/D 1:15,800. Soils D Warning: Soil Map may not be valid at this scale. Soil Rating Polygons A p Not rated or not available Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil 0 A/D water Features line placement.The maps do not show the small areas of Streams and Canals contrasting soils that could have been shown at a more detailed B scale. ® B/D Transportation Rails Please rely on the bar scale on each map sheet for map C measurements. Interstate Highways 0 C/D US Routes Source of Map: Natural Resources Conservation Service 0 D Web Soil Survey URL: Major Roads Coordinate System: Web Mercator(E PSG:3857) Not rated or not available Local Roads Maps from the Web Soil Survey are based on the Web Mercator Soil Rating Lines Background projection,which preserves direction and shape but distorts A distance and area.A projection that preserves area,such as the fa Aerial Photography Albers equal-area conic projection,should be used if more A/D accurate calculations of distance or area are required. B This product is generated from the USDA-NRCS certified data as B/D of the version date(s)listed below. C Soil Survey Area: Essex County,Massachusetts, Northern Part Survey Area Data: Version 13,Oct 6,2017 C/D Soil map units are labeled(as space allows)for map scales D 1:50,000 or larger. e Not rated or not available Date(s)aerial images were photographed: Aug 29,2014—Sep Soil Rating Points 19,2014 A The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background ® A/D imagery displayed on these maps.As a result,some minor g shifting of map unit boundaries may be evident. B/D USDA Natural Resources Web Soil Survey 1/30/2018 Conservation Service National Cooperative Soil Survey Page 2 of 4 Hydrologic Soil Group—Essex County,Massachusetts, Northern Part 660 Great Pond Road Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 1 Water 3.5 7.7% 405E Charlton fine sandy B 1.9 4.1% loam,3 to 8 percent slopes 405C Charlton fine sandy B 8.2 17.9% loam,8 to 15 percent slopes 406B Charlton fine sandy B 2.1 4.5% loam,3 to 8 percent slopes,very stony 406C Charlton fine sandy B 7.0 15.3% loam,8 to 15 percent slopes,very stony 406D Charlton fine sandy A 0.5 1.1% loam, 15 to 25 percent slopes,very stony 410A Sutton fine sandy loam, B 4.5 9.8% 0 to 3 percent slopes 410B Sutton fine sandy loam, B 5.1 11.2% 3 to 8 percent slopes 410C Sutton fine sandy loam, B 1.4 3.0% 8 to 15 percent slopes 411 B Sutton fine sandy loam, B 6.0 13.2% 3 to 8 percent slopes, very stony 411C Sutton fine sandy loam, B 4.0 8.6% 8 to 15 percent slopes,very stony 420C Canton fine sandy loam, B 0.0 0.0% 8 to 15 percent slopes 715B Ridgebury and Leicester D 1.6 3.5% fine sandy loams,3 to 8 percent slopes, extremely stony Totals for Area of Interest 45.9 100.0% USDA Natural Resources Web Soil Survey 1/30/2018 Conservation Service National Cooperative Soil Survey Page 3 of 4 Hydrologic Soil Group—Essex County,Massachusetts, Northern Part 660 Great Pond Road Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential)when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential)when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie-break Rule: Higher usDA Natural Resources Web Soil Survey 1/30/2018 Conservation Service National Cooperative Soil Survey Page 4 of 4