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Kollmorgen Site PlansF ee 'S Kollmorgen at Village Hill Northampton, Massachusetts Notice of Intent Prepared For: Kollmorgen Electro Optical Northampton, Massachusetts June 2009 r - ;:. . 0 106 -3 -01 June 5,2009 COffice of Planning and Development Northampton Conservation Commission 210 Main Street Northampton, MA 01060 Re: Notice of Intent (NOI) jrI Kollmorgen at Village Hill Northampton, Massachusetts n Dear Members of the Commission: On behalf of Kollmorgen Electro - Optical ( Kollmorgen), Tighe & Bond is submitting this Notice of Intent (NO,I) for the construction of a new light industrial /commercial building at the Village Hill South Campus in Northampton, Massachusetts. The new facility will serve as Kollmorgen's new world headquarters and incorporates a major employer to the Village Hill community. A copy of WPA Form 3 and City of Northampton Wetlands Application is fprovided on the next pages. An Order of Conditions is required for this project, as work will be taking place within the 100 -foot Buffer Zone of an isolated vegetated wetland /wet meadow. This project is not ILJI subject to the provisions of the Massachusetts Wetlands Protection Act (M.G.L. c. 131, 40). We look forward to discussing this important project with the Commission at the June 28, 2009 public hearing. Should you have any questions or require additional information, -U please contact Daniel Rukakoski at (413) 875 -1302 or me at (413) 572 -3281. . Very truly yours, 1J TIGHE & BOND, INC. �IG�G Jay P. Viamari, P.E, Associate Enclosures s� Copy: David Graves, Kollmorgen Electro- Optical �I 3:\0 \00106 \Perm1ts \N0I \N0I cover Ietter.doc LI II it u � 53 Southampton Road Westfleld, MA 01085 • Tel 413.562.1600 Fax 413.562.5317 Table of Contents Tighe &Bond Cover Letter WPA Form 3 - Notice of Intent City of Northampton Wetlands Application Copy of NOI Conservation Commission Fee Checks Appendix A - Project Narrative Section 1 Introduction Section 2 Existing Environment 2.1 Methodology of Resource Area Investigations ..... ............................... 2 -1 2.2 Description of Wetland Resource Areas .............. ............................... 2 -1 2.3 Rare Species .................................................. ............................... 2 -1 Section 3 Project Description 3.1 Proposed Activities .......................................... ............................... 3 -1 3.1.1 Construction Sequence .......................... ............................... 3 -1 3.2 Construction Period Protective Measures ............ ............................... 3 -1 3.2.1 General .................................................. ............................3 -1 3.3 Restoration Plan ................................................ ............................3 -2 3.3.1 Buffer Zone . ................................. ::.................................... 3 -2 Section 4 Regulatory Compliance 4.1 Massachusetts Wetlands Protection Act ............. ............................... 4 -1 4.2 City of Northampton Wetlands Ordinance .......... ............................... 4 -1 4.3 Stormwater Compliance .................................. ............................... 4 -1 Appendix B - Figures Figure 1 USGS Site Locus Map Figure 2 DEP Priority Resource Map Figure 3 NHESP Map Figure 4 FEMA Flood Zones Map Project Drawings (Sheets 1 through 12 provided at half - scale) Appendix C - Photographs Appendix D - Stormwater Report Appendix E - Abutter Notification Information List of Abutters Abutter Notification Form Assessors Tax Map 11 1 U Important: When filling out forms on the computer, use only the tab key to move your cursor - do not use the return key. reb Note: Before completing this form consult your local Conservation Commission regarding any municipal bylaw or ordinance. Massachusetts Department of Environmental Protection Proviaea by rvlaseoEP 'Bu/reau/�ofResource Protection - Wetlands MaasDEP File Number A Y PA Form 3 — Notice of Intent Document Transaction Number ll, Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 City/Town A. General Information 1. Project Location (Note: electronic filers will click on button to locate project site): a. First Name Village at Hospital Hill Northampton 01060 a. Street Address b. Cityrrown c. Zip Code Latitude and Longitude: 42.30964 72.64703 d. Latitude e. Longitude f. Assessors Map /Plat Number g. Parcel /Lot Number 2. Applicant: a. First Name b. Last Name Kollmorgen Electro Optical C. Organization d. Street Address Northampton a.ACity/Town MA f. State 3. Property owner (required if different from applicant): 01060 g. Zip Code (dress ❑ Check if more than one owner • rev. a. First Name b. Last Name Hospital Hill Development LLC `J c. Organization 160 Federal Street d. Street Address Boston MA 02110 e. City/Town f. State g. Zip Code LI h. Phone Number I. Fax Number j. Email address 4. Representative (if any): L Jay Viamari a. First Name b. Last Name Tighe & Bond U c. Company 53 Southampton Road d. Street Address n Westfield MA 01085 1 e. Cityrrown f. State _ g. Zip Code 413- 572 -3281 413 - 562 -5317 jpviamari@tighebond.com h. Phone Number i. Fax Number j. Email address L5. Total WPA Fee Paid (from NOI Wetland Fee Transmittal Form): $200 NA $200 a. Total Fee Paid b. State Fee Paid c. Cityrrown Fee Paid • rev. r JI' Massachusetts Department of Environmental Proteon Bureau of Resource Protection - Wetlands WPA Form 3 — Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 A. General Information (continued) Provided by MassDEP MassDEP File Number Document Transaction Number Cityrrown 6. General Project Description: Construction of approximate 140,000 square foot light industrial /commercial building. r1 7a. Project Type Checklist: b. ❑ L1 1. ❑ Single Family Home 2. ❑ Residential Subdivision c. ❑ 3. ❑ Limited Project Driveway Crossing 4. ® Commercial /Industrial Waterbodies and 5. ❑ Dock/Pier 6. ❑ Utilities 7. ❑ Coastal Engineering Structure 8. ❑ Agriculture (e.g., cranberries, forestry) `I-1 9. El Transportation 10, El Other U 7b. Is any portion of the proposed activity eligible to be treated as a limited project subject to 310 CMR 10.24 (coastal) or 310 CMR 10.53 (inland)? 1 I t ❑ Yes ® No If yes, describe which limited project applies to this project: 2. Limited Project 8. Property recorded at the Registry of Deeds for: Hampshire �j a. County b. Certificate # (if registered land) u 6925 302 c. Book d. Page Number 01 ,n L� For all projects Laffecting other Resource Areas, please attach a narrative explaining how the resource '—' area was delineated. tJ B. Buffer Zone & Resource Area Impacts (temporary & permanent) 1. ® Buffer Zone Only —Check if the project is located only in the Buffer Zone of a Bordering Vegetated Wetland, Inland Bank, or Coastal Resource Area. 2. ❑ Inland Resource Areas (see 310 CMR 10.54 - 10.58; if not applicable, go to Section B.3, Coastal Resource Areas). Check all that apply below. Attach narrative and any supporting documentation describing how the project will meet all performance standards for each of the resource areas altered, including standards requiring consideration of alternative project design or location. Resource Area Size of Proposed Alteration Proposed Replacement (if an a. ❑ Bank b. ❑ Bordering Vegetated Wetland c. ❑ Land Under Waterbodies and Waterways 1. linear feet 1. square feet 1. square feet 3. cubic yards dredged 2. linear feet 2. square feet 2. square feet rev. Massachusetts Department of Environmental Protection Provided byMassoEP Bureau of Resource Protection - Wetlands MassDEP File Number WPA Form 3 — Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Document Transaction Number 4 I City/Town _1 B. Buffer Zone & Resource Area Impacts (temporary & permanent) (cont'd) Resource Area Size of Proposed Alteration Proposed Replacement (if any) d. ❑ Bordering Land ILJI Subject to Flooding 1. square feet 2. square feet 3. cubic feet of flood storage lost. 4. cubic feet replaced e. ❑ Isolated Land I Subject to Flooding 1. square feet 2. cubic feet of flood storage lost 3. cubic feet replaced Lf. ❑ Riverfront Area 1. Name of Waterway (if available) 2. Width of Riverfront Area (check one): ❑ 25 ft. - Designated Densely Developed Areas only ❑ 100 ft. - New agricultural projects only J ❑ 200 ft. - All other projects 3. Total area of Riverfront Area on the site of the proposed project: square feet 4. Proposed alteration of the Riverfront Area: � II a. total square feet b. square feet within 100 ft. a square feet between 100 ft. and 200 ft. 5. Has an alternatives analysis been done and is it attached to this NOI? ❑ Yes ❑ No L5. Was the lot where the activity is proposed created prior to August 1, 1996? ❑ Yes ❑ No I LJ 3. ❑ Coastal Resource Areas: (See 310 CMR 10.25- 10.35) Check all that apply below. Attach narrative and supporting documentation describing how the project I will meet all performance standards for each of the resource areas altered, including standards I L requiring consideration of alternative project design or location. Online Users: Include your Resource Area Size of Proposed Alteration Proposed Replacement (if any) 1 document u transaction number a. ❑ Designated Port Areas Indicate size under Land Under the Ocean, below (provided on your receipt b. ❑ Land Under the Ocean i page) with all 1 . square feet supplementary information you 2. cubic yards dredged submit to the Department. c. ❑ Barrier Beach Indicate size under Coastal Beaches and /or Coastal Dunes below d. ❑ Coastal Beaches 1. square feet 2. cubic yards beach nourishment e. ❑ Coastal Dunes 1. square feet 2. cubic yards dune nourishment rev. I] O Massachusetts Department of Environmental Protection Provided by Massmi,: Bureau of Resource Protection - Wetlands MassDEP File Number WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Document Transaction Number'. City/Town 1 B. Buffer Zone & Resource Area Impacts (temporary & permanent) (cont'd) If Size of Proposed Alteration Proposed Replacement (if any) f. ❑ Coastal Banks 1. linear feet U g. ❑ Rocky Intertidal Shores 1. square feet f h. ❑ Salt Marshes 1. square feet 2. sq ft restoration, rehab., creation i. ❑ Land Under Salt Ponds 1. square feet 2. cubic yards dredged I. ❑ Land Containing Shellfish 1. square feet L k. ❑ Fish Runs Indicate size under Coastal Banks, inland Bank, Land Under the Ocean, and/or inland Land Under Waterbodies and Waterways, Iabove L� 1. cubic yards dredged I. ❑ Land Subject to Coastal Storm Flowage 1. square feet 4. ❑ Restoration /Enhancement If the project is for the purpose of restoring or enhancing a wetland resource area in addition to the square footage that has been entered in Section B.2.b or B.3.h above, please enter the additional v amount here. a. square feet of BVW b. square feet of Salt Marsh U 5. ❑ Project Involves Stream Crossings a. number of new stream crossings b, number of replacement stream crossings ( C. Other Applicable Standards and Requirements Streamlined Massachusetts Endangered Species ActlWetlands Protection Act Review f- 1. Is any portion of the proposed project located in Estimated Habitat of Rare Wildlife as indicated on L the most recent Estimated Habitat Map of State - Listed Rare Wetland Wildlife published by the Natural Heritage and Endangered Species Program (NHESP)? To view habitat maps, see the Massachusetts Natural Heritage Atlas or go to 1 htti): / /www. mass.gov /dfwele /dfw /nhesl)/regulatory review /priority habitat/online viewer.htm. a. ❑ Yes N No If yes, include proof of mailing or hand delivery of NOI to: Natural Heritage and Endangered Species Program Division of Fisheries and Wildlife 10/2008 Route 135, North Drive j ? b. Date of map Westborough, MA 01581 rev. 1 I' Provided by Massachusetts Department of Environmental Protection raa53DEP: Bureau of Resource Protection - Wetlands (—` MassDEP File Number l WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Document Transaction Number - - City/Town C. Other Applicable Standards and Requirements (cont'd) If yes, the project is also subject to Massachusetts Endangered Species Act (MESA) review (321 l CMR 10.18). To qualify for a streamlined, 30 -day, MESANVetlands Protection Act review, please complete Section CAL, and include requested materials with this Notice of Intent (NOI); OR complete Section CAA, if applicable. If MESA supplemental information is not included with the NOI, L' by completing Section 1 of this form, the NHESP will require a separate MESA filing which may take up to 90 days to review (unless noted exceptions in Section 2 apply, see below). 0 1. c. Submit Supplemental Information for Endangered Species Review" 1. ❑ Percentage /acreage of property to be altered: (a) within wetland Resource Area percentage /acreage r` (b) outside Resource Area percentage /acreage 2. ❑ Assessor's Map or right -of -way plan of site 3. ❑ Project plans for entire project site, including wetland resource areas and areas outside of �1 wetlands jurisdiction, showing existing and proposed conditions, existing and proposed tree /vegetation clearing line, and clearly demarcated limits of work * *" 1 (a) El Project description (including description of impacts outside of wetland resource area & I buffer zone) (b) ❑ Photographs representative of the site (c) ❑ MESA filing fee (fee information available at:, http: / /www.mass.gov /dfwele /dfwlnheso /regulatory review /mesa /mesa fee schedule.htm). Make check payable to "Natural Heritage & Endangered Species Fund" and mail to JNHESP at above address Projects altering 10 or more acres of land, also submit., ' (d) ❑ Vegetation cover type map of site ,J (e) ❑ Project plans showing Priority & Estimated Habitat boundaries d. OR Check One of the Following 1. ❑ Project is exempt from MESA review. Attach applicant letter indicating which MESA exemption applies. (See 321 CMR 10.14, http: / /www. mass. gov /dfwele /dfw /nhesp /regulatory review /mesa /mesa exemptions.htm; the NO[ must still be sent to NHESP if the project is within estimated habitat pursuant to { j 310 CMR 10.37 and 10.59.) l� 2. ❑ Separate MESA review ongoing. a. NHESP Tracking # b. Date submitted to NHESP Some projects not in Estimated Habitat may be located in Priority Habitat, and require NHESP review (see Jhtto:l /www. mass. cov /dfwele /dfw /nheso /nhese.htm, regulatory review tab). Priority Habitat includes habitat for state - listed plants and strictly upland species not protected by the Wetlands Protection Act. "" MESA projects may not be segmented (321 CMR 10.16). The applicant must disclose full development plans even if such plans are not reauired as Dart of the Notice of Intent process. i Massachusetts L_ - artment of Environmental Proteo.ron Provided by MassDEP: Bureau of Resource Protection -Wetlands MassDEP File Number,_ WPA Form 3 — Notice of Intent Dec�ment'' -- Transaction Number: Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Online Users: Include your document transaction number (provided on your receipt page) with all supplementary information you submit to the Department. C. Other Applicable Standards and Requirements (cont'd) 3. ❑ Separate MESA review completed. Include copy of NHESP "no Take" determination or valid Conservation & Management Permit with approved plan. 2. For coastal projects only, is any portion of the proposed project located below the mean high water line or in a fish run? a. ® Not applicable — project is in inland resource area only b. ❑ Yes ❑ No If yes, include proof of mailing of South Shore- Cohassetto Rhode Island, and the Cape & Islands: Division of Marine Fisheries - Southeast Marine Fisheries Station Attn: Environmental Reviewer 838 South Rodney French Blvd. New Bedford, MA 02744 hand delivery of NOI to either: North Shore - Hull to New Hampshire Division of Marine Fisheries - North Shore Office Attn: Environmental Reviewer 30 Emerson Avenue Gloucester, MA 01930 Also if yes, the project may require a Chapter 91 license. For coastal towns in the Northeast Region, please contact MassDEP's Boston Office. For coastal towns in the Southeast Region, please contact MassDEP's Southeast Regional Office. 3. Is any portion of the proposed project within an Area of Critical Environmental Concern (ACEC)? a. ❑ Yes ® No If yes, provide name of ACEC (see instructions to WPA Form 3 or MassDEP Website for ACEC locations). Note: electronic filers click on Website. b. ACEC 4. Is any portion of the proposed project within an area designated as an Outstanding Resource Water (ORW) as designated in the Massachusetts Surface Water Quality Standards, 314 CMR 4.00? a. ❑ Yes ® No 5. Is any portion of the site subject to a Wetlands Restriction Order under the Inland Wetlands Restriction Act (M.G.L. c. 131, § 40A) or the Coastal Wetlands Restriction Act (M.G.L. c. 130, § 105)? a. ❑ Yes ® No r 6. Is this project subject to provisions of the MassDEP Stormwater Management Standards? a. ❑ Yes. Attach a copy of the Stormwater Report as required by the Stormwater Management Standards per 310 CMR 10.05(6)(k) -(q) and check if: 1. ❑ Applying for Low Impact Development (LID) site design credits (as described in lU 'i Stormwater Management Handbook Vol. 2, Chapter 3) I 2. ® A portion of the site constitutes redevelopment S� 3. ® Proprietary BMPs are included in the Stormwater Management System. b. ® No. Check why the project is exempt: Project not subject to WPA but has been designed to meet MAWPA Stormwater Standards U1. ❑ Single- family house �. -'__ wpaform3 doC_rev—OSL08LQ.9 _ Page 6 of E L� Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands ` WPA Form 3 — Notice of Intent i Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Cltylrown E. Fees 1. ❑ Fee Exempt: No filing fee shall be assessed for projects of any city, town, county, or district of the Commonwealth, federally recognized Indian tribe housing authority, municipal housing authority, or the Massachusetts Bay Transportation Authority. Applicants must submit the following information (in addition to pages 1 and 2 of the NOI Wetland Fee Transmittal Form) to confirm fee payment: l_..I 2. Municipal Check Number 3. Check date i4. State Check Number 5. Check date 6. Payor name on check: First Name 7. Payor name on check: Last Name F. Signatures and Submittal Requirements { . J I hereby certify under the penalties of perjury that the foregoing Notice of Intent and accompanying plans, documents, and supporting data are true and complete to the best of my knowledge. 1 understand that !� the Conservation Commission will place notification of this Notice in a local newspaper at the expense of the applicant in accordance with the wetlands regulations, 310 CMR 10.05(5)(a). 1 further certify under penalties of perjury that all abutters were notified of this application, pursuant to the requirements of M.G.L. c. 131, § 40. Notice must be made by Certificate of Mailing or in writing by hand Jdelivery or certified mail (return receipt requested) to all abutters within 100 feet of the property line of the project location. 1. re of Appli n �'(Da 'd Graves, Kollmorgen) 2. Noi lug ovy S ty 3. Sign ure of P pedy Owner (if different) 4. Date aJ m �f 9 of Representative (if any) (Jay P. Vlamari, Tighe & Bond, Inc.) 8. Date For Conservation Commission: Two copies of the completed Notice of Intent (Form 3), including supporting plans and documents, two copies of the NO] Wetland Fee Transmittal Form, and the city/town fee payment, to the Conservation l�2 iH' ✓� s Commission by certified mail or hand delivery. p0 ca h ° For MassDEP: One copy of the completed Notice of Intent (Form 3), Including supporting plans and documents, one I_..; copy of the NO] Wetland Fee Transmittal Farm, and a copy of the state fee payment to the MassDEP II Regional Office (see Instructions) by certified mall or hand delivery. Other: If the applicant has checked the "yes" box in any part of Section C, Item 3, above, refer to that section j and the Instructions for additional submittal requirements. iI. The original and copies must be sent simultaneously. Failure by the applicant to send copies in a timely manner may result In dismissal of the Notice of Intent. L wpaform3.doc - rev. 04108!09 Page 8 of 6 ilCity of Northampton -- Wetlands Application This form is required for all applications filed under the Northampton Wetlands Ordinance File with the Office of Planning and Development, 210 Main Street, Northampton, MA 01060 We recommend applicants consult with the Land Use and Conservation Planner (587 -1263) before applying 1. Check what kind of permit you are. requesting ❑ Request for Determination of Applicability (WPA form 1) ❑✓ Notice of Intent (WPA form 3) ❑ Abbreviated Notice of Resource Area Delineation (WPA form 4A) 2. Property street Address: Village at Hospital Hill (Northampton State Hospital) 3. Assessors' Map and Parcel: 38A -102 Second lot (if any) Map and Parcel(s): 38A -99 Additional property description: Hospital Hill -South Campus 4. Check the items enclosed. Your application will not be accepted if any items are missing. ❑✓ The appropriate completed Massachusetts DEP application htip://www.mass.gov/dep/Water/ai)i)rovals/Wwforms.htrn ❑✓ Completed versions of this Wetlands Application t J ❑✓ Nine (9) copies of the fully completed and collated application packages (forms, plans and attachments) 0✓ All plans folded (not rolled) and collated with each application packet i ❑✓ For Notice of Intent applications only, submit the following: R] Appropriate Notice of Intent Conservation Commission Fees -1 httt): / /www.northaniptonma. eov toad/ uploads /listWideet/2533 /opd %20fees.i)df F/ An abutters list of all property owners within at least 100 feet of the property line of your project. Abutters lists may be generated at www.NorthamptonMA.gov/opdd (click on Database: Abutters, Permits and Historic). Computers are available at City Hall, Forbes and Lilly Libraries. ❑ For Request for Determination applications, appropriate Request for Determination of Applicability Fees htti): / /www.northamptonma. gov /opd/ uploads/ listWidget/2533 /opd°h2Ofees.pdf 1 ❑ For Notice of Resource Area Delineation use Notice of Intent Fee httl)://www.northamptonma.gov/ol)d/ mloads /listWidget /2533 /opd %20fees.ndf ❑✓ A #10 business envelope addressed to the applicant. 5. Provide an Existing Conditions Site Plan. Check the items shown on that plan. You may request a waiver from submittal requirements, with a reason for the waiver request. ❑ Boundary of entire lot and notation of lot area ❑✓ Context of adjacent lots, if necessary to show extent of wetland/Riverfront Area ✓❑ Numbered wetland flags rI ❑ Existing and potential vernal pools l ✓❑ 50' AND 100' wetland buffer ❑ Mean Annual High Water line, for Riverfront Area permits ❑ 100' inner riparian zone AND 200' outer riparian zone, for Riverfront Area permits f ❑/ Existing structures, impervious surfaces (ie: pavement, gravel) and lawn areas - ❑✓ Edge of vegetation accurately measured or surveyed ❑✓ Significant (8"+ Diameter Breast Height) trees within the limit of work area that are also within the 200' l� Riverfront Area, Bordering Vegetated Wetland, or 100' wetland buffer ,' I ❑✓ 2' contours ❑ Elevations in feet (not meters), for projects within the floodplain l ✓❑ Zoning setbacks I ❑ 1:20 scale, ifpossible iJ 6. If new work is proposed, provide a Proposed Site Plan. Check the items shown on that plan; You may request a waiver from submittal requirements; with a reason for the waiver request. [✓ Grading /proposed new contours ' Q Ilardscape (i.e footprint of house, driveway, walkways, terraces, etc... ❑ Any removal of vegetation and significant trees within the Riverfront Area, wetland and buffer ❑ Landscaping and plantings within the Riverfront Area; wetland and wetland buffer Q✓ Location of erosion control barrier j ❑✓ Limit of work line Utility lines ❑✓ Stormwater Management Form (use DEP form www mass .gov /det)/bm /ww /wwforms.litm ; if required ❑ Wildlife assessment if the site is in a habitat resource area based on NIIESP maps, Northampton Potential and Certified Vernal Pools Map or otherwise required by the Actor Ordinance, ❑✓ At the same scale as the Existing Conditions Site Plan ❑ For new homes in the Riverfront Area only, documentation of the date the lot was recorded. 7S We have provided and requested information and believe and understand that (initial each item below): f 4 Application deadline is one calendar month prior to a public hearing If the application is incomplete or waivers are requested, however, the public hearing may be delayed i We will check for the date and time of our public hearing at www.NorthamotonMA.cov or in the Daily; ! Hampshire Gazette Legal Ads section. Such notice is posted seven days prior to the public hearing; The Conservation Commission may request an alternatives analysis for work proposed within the buffer, zone of a wetland; The Conservation Commission and their representatives have permission to enter the property, Tighe &Bond Section 1 1 Introduction This Notice of Intent (NOI) is being submitted on behalf Kollmorgen Electo Optical (Kollmorgen) for a development project on the South Campus of Village Hill. The proposed project consists of the construction of an approximate 140,000 square foot light industrial building to house Kollmorgen's world headquarters. The project area is located within the former Northampton State Hospital south campus between Chapel, Prince, Earle, Grove and Laurel Streets. A USGS Site Locus (Figure 1), DEP Priority Resource Map (Figure 2)., Orthophotograph (Figure 3) and FEMA Flood Zones Map (Figure 4), which illustrate the project location and surrounding physical and environmental features, are provided in Appendix B. A n half -scale set of project drawings is also provided in Appendix B. {_..l Kollmorgen has been headquartered on King Street in Northampton since 1951. They have outgrown their existing facility and need to expand. The proposed 140,000 square foot building has been designed and sited to accomplish many community goals, including a sustainable design approach and the incorporation of a major employer into the Village Hill community. The location of the building on the South Campus provides easy access to public transportation and the multi -use trail as well as providing a visually appealing terminus to Village Hill Road. The building is sited to maintain views of the mountain ridgeline to the south and east from Village Hill Road, and many specimen trees from the former state hospital campus have been preserved. (� Sustainable construction and design techniques, as defined by LEED TM, such as siting the Lf building for maximum solar gain and daylighting and the use of rain gardens for stormwater infiltration have been incorporated into the project. A portion of the project is sited within the 50 -foot and 100 -foot Buffer Zone of an isolated vegetated wetland (wet meadow). As such the project is subject to jurisdiction under the City of Northampton Wetlands Ordinance. The project is not subject to �1 jurisdiction under the Massachusetts Wetlands Protection Act (M.G.L. c. 131, 40). The J construction of a stormwater detention basin within the Buffer Zone will be completed in accordance with an existing Order of Conditions (MADEP 246 -537). L Notice of Intent — Kollmorgen at Village Hill (Northampton, MA) I "1 o n t_.l n Tighe &Bond Section 2 Existing Environment This section provides a site description and resource area characterization for the project area. Land use in the general vicinity of the project area was determined based on direct observations made during data collection site visits and a review of information available through the Massachusetts Geographic Information System (MassGIS) and Natural Resources Conservation Service (NRCS). The site is located at the former Northampton State Hospital South Campus. Buildings formerly located on the site have been demolished. The Village Hill North Campus is situated on the opposite side of Prince Street to the north. Residential properties are located along Chapel Street to the north and Laurel Street to the west. Rural residential and undeveloped properties are located along Grove Street to the south followed by a former railroad embankment, the Mill River and light industrial /commercial properties along South Street. Mixed light industrial /commercial, residential and undeveloped properties are located along Earle Street to the east. The site is zoned as Planned Village. Soils on the subject property have been mapped as Belgrade and Boxford silt loams (moderately well drained) and Hinckley loamy'sands (excessively drained). 2.1 Methodology of Resource Area Investigations n Wetland resource areas were originally delineated in 2003 as part of the original Notice L of Intent filed for the Village at Hospital Hill project. Wetland areas associated with the subject property were revisited in October 2008 as part of the South Campus ainfrastructure improvements along Grove Street. 2.2 Description of Wetland Resource Areas r� Portions of the proposed project are located within the 100 -foot Buffer Zone of an isolated vegetated wetland /wet meadow. The hydrology in this area appears to- be driven by surficial runoff towards the southeast and a high groundwater table. C Dominant vegetation consists of reed canary grass (Phalarls arundinacea). Soils in this location consist of dark grayish brown silty loam to fine sandy loam, with redoximorphic r features within six inches of the surface. L1 This wetland is subject protection as an isolated wetland under the City of Northampton Wetlands Ordinance. Isolated wetlands are not jurisdictional under the Wetlands lProtection Act (M.G.L. c. 131, 40), 2.3 Rare Species l The Massachusetts Natural Heritage and Endangered Species Program (NHESP) Atlas (October 1, 2008) and MassGIS online (October 2008), were consulted during the preparation of this NOI. According to these sources, the project area is not located within the limits of mapped Priority Habitats of Rare Species or Estimated Habitats of Rare Wildlife. Notice of Intent — Kollmorgen at Village Hill (Northampton, MA) 2 -1 Tighe&Bond (� Section 3 rl Project Description l� 3.1 Proposed Activities The project entails the construction of a new two -story 140,000 square foot light industrial building to house Kollmorgen's world headquarters. The building will be accompanied by a 485 space parking lot and dense grade stone fire access road. The I building has been designed and sited to accomplish many community goals, including a sustainable design approach and the incorporation of a major employer into the Village Hill community. Sustainable construction and design techniques, as defined by LEEDTM, such as siting the building for maximum solar gain and daylighting and the use or rain gardens for stormwater infiltration have been incorporated into the project. Stormwater detention basins to treat runoff generated from impervious areas have been designed and permitted by others and are not included as part of this Notice of Intent. 11 3.1.1 Construction Sequence The final sequence of construction will be determined by the selected contractor. The anticipated construction sequence includes the following: �l U • Install sedimentation and erosion controls /protective measures • Remove vegetation as required, complete site grading U• Construct stormwater detention basin • Construct retaining wall on southwest side of site I] • Initiate construction of new 140,000 square foot building • Construct rain gardens • Install site landscaping • Complete site paving /fire access road L • Remove protective measures upon receipt of authorization from the Conservation Commission -! 3.2 Construction Period Protective Measures �I 3.2.1 General LJ Wetland resource areas at the site will be protected by haybales and /or silt fence. These protective measures will be placed to restrict the Contractor to the areas necessary to -� conduct the work and will define the limits of work. The locations of these barriers are LJ illustrated on the project drawings provided in Appendix B of this document. Typical details are also provided in the project drawings. In addition: The Contractor will be required to maintain a reserve supply of haybales and /or silt fence on -site to make repairs, as necessary. Notice of Intent - Kollmorgen at Village Hill (Northampton, MA) 3 -1 r_l Section 3 Project Description Tighe &Bond • Protective measures will be inspected after significant precipitation events and repaired, as necessary. The following general measures will be employed to minimize impacts adjacent to resource areas during construction: • Erosion controls will be installed as shown on the plans prior to work adjacent to wetland resource areas. • Erosion controls will be removed and properly disposed following Conservation Commission authorization. 3.3 Restoration Plan The Restoration Plan presented in this section describes the actions proposed to stabilize disturbed areas upon the completion of construction. 3.3.1 Buffer Zone Areas disturbed /regraded within the regulated Buffer Zone will be seeded with an erosion control mix for dry sites (New England Wetland Plants, Inc. (NEWP) New England Erosion Control /Restoration Mix for Dry Sites or equivalent). If necessary the area will be mulched to provide stabilization until vegetation is established. A summary of species included In this mix is presented in Table 3 -1. Ll TABLE 3 -1 New England Erosion Control /Restoration Mix for Dry Sites Common Name Scientific Name Indicator Status Upland Bent grass Agrostis perennans FACU lJ Rough Agrostis scabra FAC Bentgrass /Ticklegrass j l Blue Grama Bouteloua gracilis u Canada Wild Rye Elymus canadensis FACU+ Creeping Red Fescue Festuca rubra FACU Annual Ryegrass Lolium multiflorum (naturalized) l� Perrenial Ryegrass Lolium perenne (naturalized) f Little Bluestern Schizachyrium scoparium FACU Indian Grass Sorghastrum nutans UPL i —� According to NEWP, best results can be achieved by seeding in either spring or fall. Late spring and summer seeding will benefit from a light (Le: less than one inch thick) mulching of straw to conserve moisture. The mix comes with a recommended application rate of 35 pounds per acre (or 1,245 square feet per pound). The mix may I� be applied by hydro- seeding, by mechanical spreader, or on small sites it can be spread by hand. The planting of trees and shrubs within the Buffer Zone is not proposed to preserve the Li open meadow nature and viewshed provided from the building to the southeast. Notice of Intent — Kollmorgen at Village Hill (Northampton, MA) 3 -2 I� Tighe &Bond Section 4 Regulatory Compliance This section summarizes the project's relationship to and compliance with pertinent ' local, state and Federal regulations. 4.1 Massachusetts Wetlands Protection Act As the project is being conducted within the Buffer Zone of an isolated wetland the proposed work is not subject to the provisions of the Massachusetts Wetlands Protection Act. 4.2 City of Northampton Wetlands Ordinance The project is subject to the provisions of the Northampton Wetlands Ordinance as activities will occur within 100 feet of an isolated vegetated wetland /wet meadow. The majority of the project, including the entire building footprint, has been sited outside of the regulated 100 -foot Buffer Zone. Site work associated with the construction of a dense grade stone fire access road to the rear of the building, and a concrete block retaining wall. to the southwest of the proposed building will fall within the regulated Buffer Zone. These activities, including associated limited grading, will result in approximately 9,750 square feet of impacts to the 100 -foot Buffer Zone. Approximately 1,216 square feet of impacts will fall within 50 feet of the isolated wetland area. No impacts associated with the development project will fall within 30 feet of the wetland boundary. In accordance City of Northampton Wetlands Ordinance at § 337 -10 B., for areas zoned r'1 as Planned Village the. Conservation Commission waives any of the performance L J standards that are over and above state law with the exception of the setback requirements in Table 1. In accordance with Table 1, the setback requirements for this F project are 10 feet from jurisdictional wetland areas. No work is proposed within the 10 -foot No- Encroachment Zone. _ It should be noted that activities associated with the construction of a stormwater detention basin will also occur within the regulated Buffer Zone of this isolated wetland. An Order of Conditions has already been obtained for this portion of the proposed work. 4.3 Stormwater Compliance The project has been designed to meet the Design Criteria established by the Northampton Planning Board Regulations. A stormwater design report and accompanying discharge permit application have been submitted to the Northampton Department of Public Works. An approved permit is anticipated to be issued prior to the public hearing for this application. A copy of the Stormwater Report and permit �i application are included in Appendix D. J ; \O \00106 \Permits \N OI \Re po rt. d oc L.l Notice of Intent — Kollmorgen at Village Hill (Northampton, MA) 4 -1 Tighe &Bond In � -I L� LI Appendix B Figures �� i� - Ar, Re SITE LOCATION gc P-71 64f P nch. Mead a A, 10'9ri Y 1A �xz " , '�' ,'- SuLgiA FIGURE 1 1:26,000 SITE LOCUS M I AP 0 2,000 T!!!Niiiia Kollmorgen Electro-Optical Feet Village Hill Based on USGS Topographic Map for Northampton, Massachusetts Easthampton, MA Quadrangle. Revised 1979. 10-Foot Contour Interval. Tighe&Bond Circles indicate 500-foot and half-mlle radii May 2009 JA=Q105%GfS;PDFS\usgspdf- 6: .��t .4���� :��r:t °.. .�� R( "� Y 5413,1 .N! y l'� err`. % :T "'` '' ,+ �" tt .� yy V d ' F � �� '4� r ."�'4'7� t '►QQQs•49� JOdd. i J'�APd. �'r-t" v�Dy0p6`e.P � i�'�p � 5y � yAS�R .a od ®ac qv JA ®a® 03., `K �"�' � P 9 . ''� ba'r d0+' FiA00C® 3G�0 ®�� ©6 ®R ,. � ) l �' OA 3c 9 M's 3' ��.r` �e :, � ��, � c� �� 3` x ��db�:� �. � �J ry90 ®,�f ti �3r a ©°i� sVS6 � � �... s�K�.,sr� ,Y..�,�"r ...� MR'�`�.;s,�a%�.Eat�n� ®`` ».d�_ ..n �, ?ni$_.�� .. ANA , i T. hi r , Al ' jI1III��, I As IE # rV1. Legend ® 100 Year Flood Plain ® 11 . �. X00 2,000 MEMiiiiii Feet n -: 0 KOLLMCIRGEN ELECTRO - OPTICAL VILLAGE HILL NORTHAMPTON, MASSACHUSETTS APPLICATION FOR SITE PLAN APPROVAL MAY 2009 REVISED JUNE 2009 LOCUS PLAN LE:V -1,000' 0 KOLLMORGEN ELECTRO -OF 347 KING STREET NORTHAMPTON, MA 01060 INC. DEVELOPER O'CONNELL DEVELOPMENT GROUP 480 HAMPDEN STREET - .. HOLYOKE, MA 01040 ARCHITECT BARGMANN, HENDRIE & ARCHETYPE, INC. 300 A STREET BOSTON, MA 02210 ENGINEER Tighe &Bond 53 SOUTHAMPTON ROAD "TFIELD, MA 01085 I I . CTC QCT 411 QWCCTQ URB Urban R aidentlal U L V Planned Village J / O f b a.a" f URC / j'a 'tti / Residential 51 r�, "�, specter j / GI General / Industry % / i / E z�� g7 Y � 'aegv' r i i ' „ ;,�$` ,rj } e•' I c �/ �'�'"/ ` eigUmpig car ��. -- �.. y - f �� / ✓; h '� ' �� Aar fro Hima�o +. a _ own mu M — 1 _0 1 V 4N a W. aa`r x mm ,_ un�m.mw..rumm ... SHEET' 7 ( E WALE - TYPICAL SECTION Aj.��H, H E� I wreasxEo mt m, 00000 -17 OVER P—TING z 0 LU U) Z 0 rg LU CL o LL 6 z %joh f Was V � ;p ,k An 1 W V Tighe &Bond l_ l FI G G j Appendix C Photographs SITE PHOTOGRAPHS KOLLMORGEN AT VILLAGE HILL Tighe &Bond Photo 1: View of former Northampton State Hospital and future Kollmorgen facility from north (04/29/2009). Photo 2: View of isolated vegetated wetland /wet meadow from southwest from proposed detention basin (05/26/2009). SITE PHOTOGRAPHS Tighe &Bond II I L_J i i r Photo 3: View of isolated vegetated wetland /wet meadow from west (05/26/2009). isolated vegetated wetland /wet meadow from Grove /26/2009). -2- C-� Tighe Mond Appendix D Stormwater Report �l r -, Li '_J i J f` �I LL di �I !_J f r� / Kollmorgen Electro- Optical Project Village Hill - Northampton, MA Revised Storm water Management Report Prepared For: Kollmorgen Electro- Optical Northampton, Massachusetts a May 2009 Revised May 26, 2009 Revised June 5, 2009 Project Type (check one) Permit Review and Inspection Fee • Residential Site Q unit and 1.5 Acres Disturbed $700 • Residential Site I unit and greater than 5 Acres Disturbed $1,100 • Minor Residential Subdivision (1 lot and disturbing I to 5 $700 or $1 per linear foot of roadway or common driveway (which ever is greater) acres of lend ) • Residential Subdivision and Other Rcsidential such as r, Townhouse or Retirement Development (2 or more units in a common i STORMWATER MANAGEMENT see rain: common driveway which ever is greater) ` PERMIT Date Nid: � 1 s APPLICATION Permit w: Approved ay: 4. Certification City of Northampton Mpartmnt or hHe works Approval Date: (For DPW u+a on 1y1 (� 1. Project/ Site Information f -� to the bast of my knowledge. Furtber, l grant the Northampton Department of Public Works and its agents during and, fter Project/ Sito Name: Kollmorgen Electro- Optical Facility permission to enter the property to review this application and make Inspections Project Street /Location: Village Hill South Campus - Prince Streat 38A Parcels Assessor's Map: : multipl e - i Estimated Area to be Disturbed (e): 11 acres - 479,000 s.f. Revised 9/t2/2007 Total Area of Impervious Surfaces: Existine Proposed ( paved, parking, decks, roofs, etc.)(f) 3.9 (169,000) s.f, 6,6 (287,000) a.f. r'1 �� &C dF c"e�,�'{'�;,a�� e(e5erl 6V rK�T'H G�dL� '.. Project Type (check one) Permit Review and Inspection Fee • Residential Site Q unit and 1.5 Acres Disturbed $700 • Residential Site I unit and greater than 5 Acres Disturbed $1,100 • Minor Residential Subdivision (1 lot and disturbing I to 5 $700 or $1 per linear foot of roadway or common driveway (which ever is greater) acres of lend ) • Residential Subdivision and Other Rcsidential such as $2000 or 32 per linear foot of roadway or driveway (which ever is greater) Townhouse or Retirement Development (2 or more units in a common common plan of development) $2000 or $2 per linearfoot of toadway or • Commercial Subdivision common driveway which ever is greater) ❑ Commercial or hrdusbiel Site $700 per arse diemrhed (maximum of $5,000) i] Land Disturbance Only (No change in site use or buildings. $100 per acre disturbed May include recansnuction of parking lots, roads, and 4. Certification driveways; utili work: and lawn and landsca in work. 2. Applicant Information 3.0wner Informatlou (If different from Applicant) Name: David Graves - rollmor en Richard Henderson - Mass Development L'1 Address: 347 King St., Northampton, MA 160 Federal St. , Boston, HA 02110 Telephone: 413 -586 -2330 800 - 445 -8030 1- E -Mail: r � Fax: 413 -586 -1324 617 - 451 -3429 L_ 4. Certification I berby eertlly that the Information contained herein Including all attachments Is true, accurate and Complete f -� to the bast of my knowledge. Furtber, l grant the Northampton Department of Public Works and its agents during and, fter permission to enter the property to review this application and make Inspections L'1 q Applicant's Signaturey Date i�Pdi•/ Owner's Signature. Date l=X a G"%i c , .f -Kli 5 a rll,wwt- 1J � Revised 9/t2/2007 owe t..viltov12e5 hCJ Qf�(F t:-A- �'rl�•,Q of i'l+l5e Ilea vti baF eskal- +a iue. dL�w ewC��t tt�e �� &C dF c"e�,�'{'�;,a�� e(e5erl 6V rK�T'H G�dL� '.. Cp.. Gvtah ov..fy �'t`Yey.s beE'%fv n n 5. Application Requirements The application to the Northampton Department of Public Works (DPW) for a Stormwater Management Permit must include submission of the following: ® Completed and Signed Stormwater Management Permit Application • Non - Refundable Permit Review and Inspection Fee • Operation, Maintenance, and Inspection Agreement ® Three complete copies of the Stormwater Management Plan and Erosion and Sediment Control Plan prepared by a professional engineer licensed by the Commonwealth of Massachusetts, and including the minimum documentation listed below (see the Northampton Stormwater Management Ordinance (Chapter 22, Article V) for more information): Proiect Documentation: (Check circles below indicating that you have provided the following minimum information) 0 Identify all operators for the project site and the potions over which each operator has control. Q All plans submitted have been prepared and stamped by a professional engineer licensed by the Commonwealth of Massachusetts �r Q The applicant has certified on the drawings that all clearing, grading, drainage, construction, and development shall be conducted in strict accordance with the plan ® Locus map ® The existing zoning, and land use at the site (j) The proposed land use ® The location of existing and proposed easements CD The location of existing and proposed utilities ® The site's existing & proposed topography with contours at 2 foot intervals CO Soils investigation (by a Certified Soil Evaluator or Certified Professional Soil Scientist) including borings or test pits, to a depth greater than 4 ft. below estimated seasonal ground water for areas where construction of infiltration practices will occur. G Estimated seasonal high groundwater elevation (November to April) in areas to be used for storm water retention, detention, or infiltration (by a Certified Soil Evaluator or Certified Professional Soil Scientist). J 0 A description & delineation of existing stormwater conveyances, impoundments, and wetlands on or adjacent to the site or into which storm water flows. ` S ® A delineation of 100 -year flood plains, if applicable. ® The existing and proposed vegetation and ground surfaces with runoff coefficient for each. ® A drainage area map showing pre and post construction watershed boundaries, drainage area, storm water flow paths, and receiving water. Q A description and drawings of all components of the proposed drainage system including: 1) the structural details for all components of the proposed drainage systems and storm water management facilities (including size, inverts, and grade); 2) all measures for the detention, retention or infiltration of water; 3) all measures for the protection of water quality; 4) notes on drawings specifying materials to be used, construction specifications, and typicals; 5) the existing and proposed site hydrology with supporting drainage calculations (including the 1,2,10, and 100 year NRCS design storms); Northampton Department of Public Works Page 2 ,} Stormwater Management Permit lI r. �.I 6) proposed improvements including location of buildings or other structures, impervious surfaces, and drainage facilities, if applicable; 7) location, cross sections, and profiles of all potentially impacted brooks, streams, drainage swales and their method of stabilization; and 8) proposed ownership .of drainage system structures. Estimate of the total area expected to be disturbed by excavation, grading or other Y ' construction activities. Q A description and location of all measures (i.e„ Best Management Practices) that will be implemented as part of the construction activity to control pollutants in storm water discharges. A description of when each control measure will be implemented in the construction schedule, which operator is responsible for the implementation of each control measure and a maintenance and inspection schedule for each control measure during 'i construction. Z A description of construction and waste materials expected to be stored on -site, and a description of controls to reduce pollutants from these materials including storage practices to minimize exposure of the materials to storm water, and spill prevention and response. ® Timing, schedules, and sequence of development including clearing, stripping, rough grading, construction, final grading, and vegetative stabilization. 6. Application Submission, Review, and Approval Procedures 1. Application Submittal: The application to the Northampton DPW for a Stormwater land use Management Permit must be submitted prior to or concurrently with any permit application. Submission of an application should be made to the Northampton f l l J Department of Public Works, 125 Locust St., Northampton, MA 01060. For more of the Northampton Stormwater Ordinance visit the DPW information and copies web site at http://www.northami)tonma.gov/di)NY/StormaggLI or contact Doug McDonald 1..1 at 413 -587- 1582 x308 or dmcdonald(@nohodp-A,.org 2. Administrative Review: The Northampton DPW will have 7 days from the receipt of the application to review the application for administrative completeness. Incomplete Japplications will be disapproved and returned to the applicant based on the determination that they are administratively incomplete. 3. Review: If the application is found to be complete, the Northampton DPW will review the application and supporting documents based on the criteria set forth in the Northampton Stormwater Management Ordinance (Chapter 22, Article V) and will (, take final action within 21 days (including the 7 day administrative review period) of the receipt of a complete application unless such time is extended by agreement between the applicant and the DPW. r� L 4. Final Action: The Northampton DPW's final action will be in writing and will be sent to the applicant and the appropriate City Departments) and Board(s). � 1. " Northampton Department of Public Works Page 3 ,� Stormwater Management Permit 0 Table of Contents Tighe &Bond Executive Summary 1 Registered Professional Engineer's Certification 2 Project Type 3 LID Measures 4 Standard 1: No New Untreated Discharges 5 Standard 2: Peak Rate Attenuation 6 Standard 3: Recharge 7 Standard 4: Water Quality 8 Standard 5: Land Uses With Higher Potential Pollutant Loads (LUHPPLs) 9 Standard 6: Critical Areas 10 Standard 7: Redevelopment Projects and Other Projects Subject only to the Maximum Extent Practicable 11 Standard 8: Construction Period Pollution Prevention and Erosion and Sediment Control 12 Standard 9: Operation and Maintenance Plan_ 13 Standard 10: Prohibition of Illicit Discharges 3: \0 \00106 \Drainage \Stormwater Report.doc Appendices A Massachusetts Stormwater Report Checklist B Stormwater Calculations C TSS Removal Form D NRCS Soil Types Figure and Site Soil Information E Critical Area Figure F Proprietary Structural Treatment Unit & Subsurface Detention Information G Stormwater Operations and Maintenance Plan H Erosion and Sedimentation Plan I Site Plan Approval Plan Set (Separately Bound) i� Q rr Tighe &Bond Section 1 Registered Professional Engineer's Certification I have reviewed the Stormwater Report, including the soil evaluation, computations, Long -term Pollution Prevention Plan, the Construction. Period Erosion and Sedimentation i Control Plan (if included), the Long -term Post- Construction Operation and Maintenance Plan, the Illicit Discharge Compliance Statement (if included) and the plans showing the stormwater management system, and have determined that they have been prepared in accordance with the requirements of the Stormwater Management Standards as further elaborated-by the Massachusetts Stormwater Handbook. I have also determined that the information presented in the Stormwater Checklist is accurate and that the information presented in the Stormwater Report accurately reflects conditions at the site as of the date of this permit application. �l l� IJOSSPH P ' VIAMA.RI, JR. CIVIL No. 41776 Registered Professional Engineer Block and Signature Signature, Date n Stormwater Report 1 -1 n n Tighe &Bond Section 2 Project Type This Stormwater Report has been prepared by Tighe & Bond on behalf of the owner, Kollmorgen Electro- Optical, Inc. (Owner). The proposed project on Prince Street (Route 66) in Northampton, Massachusetts consists of a new multi -use (manufacturing and office) building, associated parking, utilities and a stormwater management system. The proposed project and all associated work is located in Northampton, Massachusetts. The site was previously developed, being a part of the former Northampton State Hospital. There were six buildings and paved parking lots on the site. The buildings and parking areas have been demolished in the recent past and the site is now a vacant lot. The site was cleared with the intent to redevelop the site. For the purpose of this report existing conditions will be represented by the previously developed site. This project is part of the larger "Planned Village" development. Some of this larger development is already constructed, including a shared detention basin (east of the site) that this project will use. There is a second detention basin (south of the site) that was designed and permitted as a part of the south campus site plan subdivision prepared by Beals and Thomas, Inc. (BTI). The basin's original design has been incorporated into the proposed project's site plan and stormwater management system. The proposed project will improve upon the existing condition of the site utilizing low impact design (LID) techniques. The stormwater collected from the site will go through the stormwater management system and be treated before being discharged. The stormwater management system will use infiltration to maximize recharge to groundwater. The proposed stormwater management system for the site includes: deep sump catch basins, manholes, stormwater treatment structures, bioretention areas, rain gardens, a subsurface detention unit, drainage piping and a new detention basin (as previously designed). The proposed project is considered a combination of new development and redevelopment because the existing conditions for the site included developed, impervious area. The existing site conditions included approximately 3.9 acres of impervious area, whereas the proposed site conditions include approximately 6.6 acres of new impervious area. Therefore 3.9 acres will be redevelopment and 2.7 acres will be considered new development. The total disturbed area of the site including grading and accessory work will be approximately 11 acres. In addition to the proposed project, the stormwater management system has been designed to accommodate the future development of the small parcel at the north end of the site, east of the main entry drive. Potential future uses and an associated parking area have been considered and the associated stormwater flows have been included in the model and calculations presented in this report. The construction of this parcel is not proposed under this project; however, the associated stormwater controls for this future development are included in the design. Imorgen Stormwater Report Tighe &Bond Section 3 LID Measures The proposed project utilizes environmentally sensitive site design and low impact development techniques that significantly improve the impacts to the environment over the existing conditions. The proposed project not only reduces the peak discharge rates from the site, but it improves the quality of the stormwater being discharged. The majority of the runoff is directed through grass channels and bioretention areas, before being infiltrated or discharged from the site. While the project utilizes environmentally sensitive LID techniques, no LID Site Design Credit is being requested. As proposed, the project will not cause any disturbance in the adjacent Wetland Resource area. However, work is proposed within the 100 -foot buffer zone. The buffer zone disturbance consists of grading, construction of an (unpaved) emergency fire access road, installation of stormwater piping, and Installation of a stormwater outfall from the proposed basin. The proposed project maximizes the use of the previously developed area and incorporates several existing specimen trees Into the proposed site layout. Also, the proposed site includes many new native species of trees, shrubs, perennials, grasses, and ferns around the proposed parking areas, throughout the islands within the parking areas, and in front of the building where appropriate proposed impervious surfaces have been reduced in size to limit runoff and promote recharge. �J Kollmorgen Stormwater Report Tighe &Bond Section 4 ! Standard 1: No New Untreated Discharges l There are no new untreated stormwater outfalis proposed as a part of this project. This Jproject is a combination of new development and redevelopment that will improve the quality of the stormwater being discharged over that of the existing conditions. Further, the proposed stormwater management system will treat the runoff collected from the impervious areas contributing to the system. The stormwater management system has been designed to yield Post Development peak discharge rates that are lower than the calculated Pre Development peak discharge rates _J associated with a 24 -hour storm event for all of the analyzed return frequencies (i.e. 1, 2, 10, 25, and 100 -year storms) for the site including potential development of the j separate lot adjacent to Route 66 that is not included as a part of this proposed construction of this project. p The outfalis on the site have been designed to not cause erosion or scour in the (1 wetlands or waters of the Commonwealth. Kollmorgen Stormwater Report 4 -1 Tighe &Bond Section 5 Standard 2: Peak Rate Attenuation j The post - development peak discharge rates, which include the building, parking areas J and potential future development of the smaller front parcel, are lower than the existing discharge rates for the 1 -year, 2 -year, 10 -year, 25 -year and 100 year 24 -hour storm events. Under existing conditions, stormwater runoff from the site flows in two general directions. A portion of the runoff flows south toward the wetland and Grove Street (Design Point 4), while another portion flows toward the east, into the drainage infrastructure on Earle Street (Design Point 5). As indicated in the drainage calculations provided in Appendix B of this Stormwater Management Report, the post - development peak discharge rates do not exceed the pre - development discharge rates at these two design points for the 1 -year, 2 -year, 10 -year, and 25 -year 24 -hour storm events. The calculations also indicate that off -site flooding will not increase during the 100 -year 24 -hour storm event as a result of the proposed project. The following table summarizes the existing and proposed post - development peak discharge rates for the 1, 2, 10, 25 and 100 -year, 24 -hour storm events. The existing conditions peak discharge rates and the proposed South Campus site plan subdivision peak discharge rates are the same values calculated and used by BTI for previous stormwater permitting efforts associated with the South Campus. The "adjusted existing peak discharge" rates were calculated using rainfall values typical for the project location rather than the higher values previously used in BTI's existing conditions calculations. These rainfall values are consistent with those used in the post development calculations. TABLE 1 I i Peak Discharge Rates for DP -4 (Basin 6) BTI's Existing Adjusted BTI's Proposed Proposed Post- Return Peak Existing Peak Post - development development Peak Freq. Discharge Discharge Peak Discharge Discharge With (cfs) (cfs) (cfs) Infiltration (cfs) -I 1 -Year 3.5 3.5 3.0 2.1 (! 2 -year 7.5 5.9 5.15 3.3 10 -year 18.9 17.0 18.0 14.1 i 25 -year 24.4 23.5 22.3 21.4 100 -year 37.0 34.9 36.8 33.2 i� Kollmorgen Stormwater Report 5 -1 Section 6 Standard 3: Recharge Tighe &Bond TABLE 2 Peak Discharge Rates for DP -5 (Basin 5) As detailed in Table 1, the discharge rates for proposed Basin No. 6 south of the Kollmorgen facility are lower than the adjusted existing condition values and BTI's proposed peak discharge rates for the 1, 2, 1,0, 25 and 100 -year storm events. Since the 100 -year peak discharge rate is lower than the existing conditions and BTI's previously proposed peak discharge rate, therefore it is not expected to increase off -site flooding. The proposed post - development peak discharge rates in Table 1 take into account infiltration within the bioretention areas at the end of the islands in the parking lot north of the building and within the rain garden area located directly in front of the building. Credit for infiltration within the subsurface detention system West of the building was not included in the peak discharge rate calculations. While this structure will promote infiltration for the majority of the year, the necessary two -foot separation between from seasonal high groundwater is not available at all times based on test pit results, therefore, we conservatively chose to ignore the beneficial impact in the stormwater calculations. Table 2 shows that the proposed post development peak discharge rates from Basin No.5 are lower than the adjusted existing condition peak discharge rates and are also below the peak discharge rates currently permitted for Basin No.5. Infiltration credit was not included in the proposed peak discharge rates for this portion of the site. While there are bioretention areas on this part of the site promoting infiltration, the soils are not as conducive to infiltration, therefore to be conservative, no credit was taken in the analysis. Kollmorgen Stormwater Report 5 -2 BTI's Existing Adjusted BTI's Proposed Post- Proposed Post - Return Peak Existing Peak development Peak development Peak Freq. Discharge Discharge Discharge (cfs) Discharge (cfs) (cfs) (cfs) 1 -year 8.74 9.1 2.3 1.3 2 -year 14.6 12.6 4.0 2.1 10 -Year 29.5 27.2 8.4 5.8 25 -year 36.4 35.0 10.5 10.2 100 -year 51.4 48.5 17.3 12.3 As detailed in Table 1, the discharge rates for proposed Basin No. 6 south of the Kollmorgen facility are lower than the adjusted existing condition values and BTI's proposed peak discharge rates for the 1, 2, 1,0, 25 and 100 -year storm events. Since the 100 -year peak discharge rate is lower than the existing conditions and BTI's previously proposed peak discharge rate, therefore it is not expected to increase off -site flooding. The proposed post - development peak discharge rates in Table 1 take into account infiltration within the bioretention areas at the end of the islands in the parking lot north of the building and within the rain garden area located directly in front of the building. Credit for infiltration within the subsurface detention system West of the building was not included in the peak discharge rate calculations. While this structure will promote infiltration for the majority of the year, the necessary two -foot separation between from seasonal high groundwater is not available at all times based on test pit results, therefore, we conservatively chose to ignore the beneficial impact in the stormwater calculations. Table 2 shows that the proposed post development peak discharge rates from Basin No.5 are lower than the adjusted existing condition peak discharge rates and are also below the peak discharge rates currently permitted for Basin No.5. Infiltration credit was not included in the proposed peak discharge rates for this portion of the site. While there are bioretention areas on this part of the site promoting infiltration, the soils are not as conducive to infiltration, therefore to be conservative, no credit was taken in the analysis. Kollmorgen Stormwater Report 5 -2 n Tighe &Bond Section 6 Standard 3: Recharge As described previously, the proposed Kollmorgen project is a combination of new development and redevelopment (i.e. there is no change in impervious area for the redevelopment portion). The existing conditions consisted of 3.9 acres of impervious area and the proposed site will have 6.6 acres of impervious area, including the building roof, access drives, and parking lots. The site consists of type A, B, and C soils, with the majority consisting of B and C. With a difference in impervious area between existing and proposed conditions of 2.7 acres, the required recharge volume for the new development is 3,630 cubic feet (0.5 acres of A soils at 0.60 inches of runoff, 1.5 acres of B soils at 0.35 inches of runoff and 0.7 acres of C soils at 0.25 inches of runoff). The proposed site includes exfiltrating bioretention areas in the islands of the parking lot, in front of the building (rain garden) and east of the eastern parking lot. There is also a subsurface detention structure which will promote recharge to groundwater on the site, but as stated in the previous section, no credit has been taken for this area because the required two foot separation from seasonal high groundwater does not appear to be present throughout the entire year. The total recharge volume provided through these systems (excluding the subsurface detention structure) is 6,878 cubic feet. This greatly exceeds the required recharge volume (3,630 cubic feet) required by the new development portion of the project. This value was calculated using the static method. Kollmorgen Stormwater Report Tighe &Bond Section 7 Standard 4: Water Quality The impervious area collecting TSS associated with this project consists mainly of parking lot area. TSS Removal Forms are included in Appendix C that show how 80% TSS removal is proposed to be achieved. There are several different proposed paths for the stormwater collected on the site to travel before it is discharged. The pretreatment and treatment methods used to obtain 80% TSS removal include grassed channels, gravel filter strips, bioretention areas, deep sump catch basins and a proprietary structural stormwater quality unit. The majority of the stormwater collected from the impervious areas of the site will sheet flow into islands that are designed as grassed channels which direct the stormwater to bioretention areas. These areas are designed as exfiltrating bioretention areas with a catch basin overflow for larger storm events. Stormwater that enters the deep sump catch basins will be piped through a proprietary structural treatment unit before discharging to a subsurface detention system under the paved area west of the building, or in the eastern parking lot to a larger bioretention area east of the site. The stormwater that does not infiltrate in the bioretention areas north of the building will be piped to the subsurface detention structure and then behind the building to combine with the roof runoff before being discharged to Basin -6. The, stormwater that does not infiltrate in the bioretention areas east of the site associated with CB -17, CB -18, and CB- 19 will overflow into the catch basins and be discharged into existing Basin -5. The proprietary structural treatment unit proposed on the west side of the site will treat the stormwater collected from the entry drive, the northwest parking lot and the paved area west of the building. The impervious area contributing to the stormwater flows entering the treatment unit is 3.68 acres. A Vortechnics unit is proposed to treat the stormwater collected in this area before discharging it to the subsurface detention system. This unit has been sized to achieve 80% TSS removal for the required water quality volume of 0.15 acre -feet. 'This water quality volume is equal to the 0.5 inches of runoff from the 3.68 acres of contributing area. The Vortech Unit Model 3000 is capable of treating a flow of up to 4.5 CFS while achieving 80% TSS removal. The stormwater flowrate produced from a 24 -hour, 2 -inch storm event traveling through this unit will be approximately 2.56 CFS, which translates to treatment volume of 0.187 acre -feet. Flows above the capacity of the treatment unit will be by- passed to the detention system during larger storm events. The supporting sizing documentation is included in Appendix E of this Stormwater Management Report. Kollmorgen Stormwater Report 7-1 Tighe &Bond Section.8 Standard 5: Land Uses With Higher Potential Pollutant Loads (LUHPPLs) This proposed project does not include a land use associated with a higher potential pollutant load. orgen Stormwater Report Tighe &Bond Section 9 Standard 6: Critical Areas The proposed project does not discharge stormwater to critical areas. Refer to the Critical Areas map provided in Appendix E of this Stormwater Report. Kollmorgen Stormwater Report 9 -1 Tighe &Bond Section 10 Standard 7: Redevelopment Projects and Other Projects Subject only to the Maximum Extent Practicable This project is a combination project that includes a portion of redevelopment and a portion of new development. The proposed project provides stormwater treatment prior to discharge and reduces the peak discharge to the two existing design points associated with the project. Source Control and Pollution Prevention and Construction Period Pollution Prevention and Erosion and Sedimentation control measures will be included on the drawings submitted with the Notice of Intent for this project, and are also included in the Stormwater Operations and Maintenance Plan included in Appendix G of this Stormwater Report. This Stormwater Report provides information and documentation explaining how the proposed project meets each standard, or meets each standard to the maximum extent practicable. Kollmorgen Stormwater Report lu'1 it !l �1 Fl Cj C I I� �1 r�I CJ i1 Tighe &Bond Section 11 Standard 8: Construction Period Pollution Prevention and Erosion and Sediment Control Construction Period Pollution Prevention and Erosion and Sedimentation Control measures are included in the Stormwater Operations and Maintenance Plan included in Appendix G and are also included on the on the Erosion and Sedimentation Plan located in Appendix H. There will be more than one acre of land disturbed as a result of this project, therefore an EPA NPDES Construction General Permit will be obtained before construction commences. Kollmorgen Stormwater Report 11 1 O O Tighe &Bond Section 12 Standard 9: Operation and Maintenance Plan A Stormwater Operations and Maintenance Plan is included in Appendix G of this report. Koilmorgen Stormwater Report 12 -1 Section 13 Standard 10: Prohibition of Illicit Discharges No illicit discharges will exist due to the proposed project. 3: \0\00106 \Drainage \Stormwater Report.doc Koilmorgen Stormwater Report Tighe &Bond r ll Tighe &Bond �fl r i_ -1 f�l n (� Appendix E L1 Abutter Notification Information r -1 �_11J �J Ij I N m I- O J F F U H � W W LLJ K Of O 0 > > > o a 3ggggg?NO0, J M N N r r N 01 r r N N J V rr R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 � duo 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (D N O] O N M 0 m O M I�. V O f0 W O N- W d'I� Nd'77 V d' -It 0 0 Of0 W N 01 W 0000 0 r O 0 0 0 0 0 r r r dc5¢aaaaaaco co aaaaQa� cowMmo�mmo�mMCOCOO»000�o�mmmm M M M M M M M M M M M M M M M M M M M M M M v. _J d N N 0 0 OO 0 0 0 0 0 f� O N 0 0 0 0 0 0 0 0 '6 DJ 07 t0 cD tO c0 c0 (O f0 (O (O N CO (O r r r r r r to I. O I1 J� O O o 0 0 0 0 o O O o O N O UI r r r r r r r r r r r N N N N N N N a IJ .�a¢a¢ aaa¢aaaaa¢aaaaaa¢ _= Z Z Z Z Z Z Z Z Z Z Z Z 000000000om 0 n 7 h H H P P P I- I- I- I- F- I- Oomamm(LmdaaQ,aw a < < < < <g <O < 00 < < < < ooaa¢¢¢aaaa¢=W0000000= mmxxxxxxxsx=sWOOOOOOOx U) (D OWWWWWWW O o o O o 0 o o O a O J 0 0 0 O O O O 0 0 z z Z z z z Z Z z w z a m m m m m m m Z �� _ 1 J 0= F- U x w U N w w o-j o (_ UU0F 000 1000FJ ¢J¢ aJa JQQ aJa QJQ QJQ W w W W W W ¢ W 0 W W W J Z 0 C7 fn j Z � W W= a' =2 W- Oa ,,JJ❑commom- �_..� (n fn n o Z) Z) D a' } W W W W W W W a ��g'0 rG OCJUrCA LLLL LLIL �.. pa pLL pLL2 QO Ln W T OJ of O 'J� N /01 O lL1 CMO o foD fo0 (00 (O c o N N N M N r r N N V r r N N r r r r r r r N N L� } a¢ U UUUUUUU W H "o J J J J J J J H m 00 0 U U F Q O Z Z Z Z Z Z Z Z Z CD OJ UU OWZZKaa aaaaaaaz pw U) U J �� ja U��7cn OpOOWOjOWOp Q - _¢ ¢'Q z¢ 2= W w O Q w w w w W W W l a °wFpOOJZOOOa000= ww 0=¢w p a ~� Z 2 O d x= O OW x x 2 2 x x x 0 1 22z�WMLij WU z Q Zt 4¢¢¢¢QQ WOS F F f-F -�L ¢¢Oxa O x�H H O Z a 2 p F- U1 a Z C) (!J }CC= W U C) U) UJ fn In (n (q in� Ozoz ¢aQQOp Fp00pVUpp00000_ Z a 3(n NU2 mmommmmmmmmu N m I- O J F F U H � W W LLJ K Of O 0 > > > o a 3ggggg?NO0, J M N N r r N 01 r r N N J V rr R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 � duo 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (D N O] O N M 0 m O M I�. V O f0 W O N- W d'I� Nd'77 V d' -It 0 0 Of0 W N 01 W 0000 0 r O 0 0 0 0 0 r r r dc5¢aaaaaaco co aaaaQa� cowMmo�mmo�mMCOCOO»000�o�mmmm M M M M M M M M M M M M M M M M M M M M M M v. _J 1 NOTIFICATION TO ABUTTERS — PUBLIC HEARING As required by the City of Northampton Wetlands Ordinance t� In accordance with the § 337 -6 of the Northampton Wetlands Ordinance you are hereby notified of the following: I A. The name of the applicant is the Kollmorgen Electro Optical. J B. The applicant has filed a Notice of Intent (NOI) with the Conservation Commission for the municipality of Northampton seeking pemrission to remove, fill, dredge, or alter an Area Subject to Protection or within 100 feet of an area Subject to Protection under the Northampton Wetlands Ordinance. JI' C. The address of the lots where the activity is proposed is Village Hill (former Northampton State Hospital) South Campus. D. Copies of the NOI may be examined at the Northampton City Hall, 210 Main Street, between the hours of 8:45 A.M. and 4:30 P.M. Monday through Friday. For more information on the filing or proposed work, call: (413) 587 -1263. Check One: This is the applicant ❑, representative ❑x , or other (specify):Northamuton Offce of Planning and Development. rl E. Copies of the NOI may be obtained from either (check one) the applicant ❑, or the applicant's L 1 representative 0, by calling this telephone number: (413) 572 -3281 between the hours of 8:00 A.M. and 5:00 P.M. on the following days of the week: Monday through Friday. F. Information regarding the date, time and place of the public hearing may be obtained from the Northampton Office of Planning and Development., by calling the following telephone number: (413) 587 -1263 between the hours of 8:45 Am. and 4:30 P.M. Monday through Friday: [I Notice of the public hearing, including Its date, time and place will be published at least five (7) days in J advance. Notice of the public meeting, listing all hearings, including the date, time and place, will be posted in Jthe Northampton City Hall not less than forty-elght (48) hours in advance of the meeting date. J J r� '.J 'I �uj