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23A-068 • engineering CORE STATES architecture project management construction management 0112111111 EWE perery c e s /1 ��� 0 development services GROUP Stormwater Memorandum Cumberland Farms Convenience Store & Gas Station 100 Main Street Florence, Massachusetts 01062 CoreStates Reference #: CFI -12687 September 15, 2011 The existing sites located at 100 Main Street and 81 Maple Street have minimal stormwater management devices to control stormwater runoff. At 81 Maple Street, a residential property, all stormwater sheet flows off of the site onto Maple Street and flows in a northerly direction along Maple Street to a catch basin located at the intersection of Maple Street and Main Street. At 100 Main Street, a Mobil Gas Station, stormwater sheet flows off of the site onto Maple Street and flows in a northerly direction along Maple Street to a catch basin located at the intersection of Maple Street and Main Street. In addition, stormwater sheet flows off of the site onto Main Street and flows easterly to a catch basin located a few hundred feet to the east of the site. However, the runoff from the Gas Canopy is piped into an onsite drywell where it is infiltrated back into the ground. When combined, the two existing properties contain 22,119 square feet of impervious area. Of the total impervious area described above, 2,388 square feet are infiltrated back into the ground via the onsite drywell while the remaining 19,731 square feet are directed toward the municipal drainage system. The proposed site, the combination of the two above referenced sites, will reduce the amount of impervious area by 2,363 square feet, for an overall impervious area of only 19,756 square feet. Of this impervious area, 2,208 square feet will be infiltrated back into the ground, thus reducing the amount of runoff that enters the municipal drainage system to only 17,548 square feet. That is a reduction of 2,183 square feet. The runoff will sheet flow off of the site on to Maple Street and flow northerly to a catch basin located at the intersection of Maple Street and Main Street and runoff will sheet flow on to Main Street and flow easterly to a catch basin located a few hundred feet to the east of the site. With this being said, the proposed development will not change the existing runoff pattern, and it will in fact reduce the amount of runoff leaving the site. Based on the above data, we do not anticipate the need for a full drainage study and / or report for the development of this site, nor do we anticipate that there will be a negative impact to the existing municipal drainage system. _1tH MA 4\ CIVIL NO. NM www.core- eng.com 179 sidney street . cambridge, ma 02139. v: 617.576.0007 . f:617.576.1007 georgia . virginia . new jersey . massachusetts . new brunswick, canada . missouri . florida . north carolina . arkansas . california . pennsylvania 10. Do any signs exist on the property? YES X NO IF YES, describe size, type and location: on the building and one pole sign Are there any proposed changes to or additions of signs intended for the property? YES X NO IF YES, describe size, type and location: signs on canopy, building and pole 11. Will the construction activity disturb (clearing, grading, excavation, or filling) over 1 acre or is it part of a common plan of development that will disturb over 1 acre? YES NO X IF YES, then a Northampton Storm Water Management Permit from the DPW is required. 12. ALL INFORMATION MUST BE COMPLETED, or PERMIT CAN BE DENIED DUE TO LACK OF INFORMATION This column reserved for use by the Building Department EXISTING PROPOSED REQUIRED BY ZONING Lot Size 26,849 Frontage 135 (Main St.) Setbacks Front 14.92 Side L: R: L: 11.12 R: 38.76 L: R: Rear Building Height 30' 2" Building Square Footage 3634 % Open Space: (lot area minus building a paved 26 parking # of Parking Spaces 12 13 # of Loading Docks 0 Fill: (volume a location) 13. Certification: I hereby certify that the information :ntained herein is true and accurate to the best of my knowledge. AI Date: 1 2 -3 �1 _ Applicants Signature ►f .� , _... ' r 1 NOTE: Issuance of a zoning permit does not relie e an app 'can b _ burden to comply w ith all zoning requirements and obtain all required permits from the Board of Health, Conservation Commission, Historic and Architectural Boards, Department of Public Works and other applicable permit granting authorities. W: \Documents \FORMS\ original\ Building- Inspector\Zoning- Permit- Application- passive.doc 8/4/2004 A File No. • , ZONING PERMITAPPLIC i ION ( §YO) �) Please type or print all information and retur thi form to - •: • • • g Inspector's Office with the $15 filing fee (check or ` ' o e o � •':' .i a • le to the City of Northampton ` NO 1. Name of Applicant: Cumberland Farms Inc. ---_11i '....a Address: 100 Crossing Boulevard, Framingham, MA Telephone: �. )401 2. Owner of Property: 100 Main St. Florence, LLC, Hampshire Develo• , Gf LLC Address: Mountain Dr. North, Bethlehem, PA Telephone: „.N °e �l°r°A 3. Status of Applicant: Owner Contract Purchaser X Lessee 0th- - • 4. Job Location: 100 Main Street, Florence Parcel Id: Zoning Map# 23A Parcel# 68, 69' Distr GB In Elm Street District No In Central Business District No (TO BE FILLED IN BY THE BUILDING DEPARTMENT) 5. Existing Use of Structure /Property: gasoline service station and residence 6. Description of Proposed Use /Work /Project /Occupation: (Use additional sheets if necessary): The applicant intends to raze the residence and gasoline station on the premises and to construct a Cumberland Farms Convenience Store with gasoline service. 7. Attached Plans: Sketch Plan Site Plan Engineered /Surveyed Plans X 8. Has a Special Permit /Variance /Finding ever been issued for /on the site? NO DON'T KNOW YES X IF YES, date issued: 5/3/95 IF YES: Was the permit recorded at the Registry of Deeds? NO DONT KNOW YES X IF YES: enter Book 4711 Page 85 and /or Document # 9.Does the site contain a brook, body of water or wetlands? NO X DON'T KNOW YES IF YES, has a permit been or need to be obtained from the Conservation Commission? Needs to be obtained Obtained , date issued: (Form Continues On Other Side) W:\ Documents\ FORMS\ original\ Building- Inspector\Zoning- Permit- Application- passive.doc 8/4/2004 File # MP- 2012 -0030 APPLICANT /CONTACT PERSON BACON & WILSON PC/MONSEIN & MACCONNELL ADDRESS/PHONE 6 SOUTH EAST ST (413) 256 -6701 PROPERTY LOCATION 100 MAIN ST - FLORENCE MAP 23A PARCEL 068 001 ZONE GB(100)/ THIS SECTION FOR OFFICIAL USE ONLY: PERMIT APPLICATION CHECKLIST ENCLOSED REQUIRED DATE ZONING FO LED OUT 6" 445":- ee Yaia // Building Permit Filled out Fee Paid Typeof Construction: ZPA - DEMO RESIDENCE & STATION & CONSTURCT CUMBERLAND FARMS W /GAS SERVICE New Construction Non Structural interior renovations Addition to Existing Accessory Structure Building Plans Included: Owner/ Statement or License 3 sets of Plans / Plot Plan THE FOLLOWING ACTION HAS BEEN TAKEN ON THIS APPLICATION BASED ON se INFORMATION PRESNTED: Approved VAdditional permits required (see below) PLANNING BOARD PERMIT REQUIRED UNDER • " Intermediate Project : Site Plan AND /OR Special Permit with Site Plan 3 SO - FA ALE u SE 1 3 o —1112— Major Project: Site Plan AND /OR Special Permit with Site Plan PA l2,KdtJ4 Cu 2.6 C&iT5 ZONING BOARD PERMIT REQUIRED UNDER: § 3 5U - 9' 3 () ( 9 Finding 10 Special Permit Variance* Received & Recorded at Registry of Deeds Proof Enclosed Other Permits Required: — ✓ — D e'uA-n (`fl 0 N D 4, ( fits To Ric_ co ins j S ,!J Curb Cut from DPW Water Availability Sewer Availability Septic Approval Board of Health Well Water Potability Board of Health Permit from Conservation Commission Permit from CB Architecture Committee Permit from Elm Street Commission Permit DPW Storm Water Management 9/9 / 1 Sigma e of Building Official Date Note: Issuance of a Zoning permit does not relieve a applicant's burden to comply with all zoning requirements and obtain all required permits from Board of Health, Conservation Commission, Department of public works and other applicable permit granting authorities. * Variances are granted only to those applicants who meet the strict standards of MGL 40A. Contact the Office of Planning & Development for more information.