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HomeMy WebLinkAbout2013-04-16 Planning Board Supplemental Materials (47) Eggleston Environmental 32 Old Framingham Rd Unit 29 Sudbury MA 01776 tel 508.259.1137 fax 866.820.7840 April 9, 2013 North Andover Planning Board 1600 Osgood Street North Andover, MA 01845 Attn: Judy Tymon, Town Planner RE: Stormwater Review 250 Clark Street Dear Ms. Tymon and Board Members: In follow-up to my previous comments on March 13, 2013 on the proposed expansion of the Flight Landata facility at 250 Clark Street, I have received and reviewed the April 3, 2013 response from Williams & Sparages Engineers, including the following: § April 3, 2013 letter to North Andover Planning Board from Peter Blaisdell, Jr., of Williams & Sparages re: Response to Stormwater Review by Eggleston Environmental § Site Plan in North Andover, MA, Sheets 1-4 of 4, prepared by Williams & Sparages, dated February 7, 2013 and revised through March 26, 2013. § Comparative Drainage Analysis, Flight Landata, 250 Clark Street, North Andover, prepared by Williams & Sparages and revised through March 26, 2013. § Notice of Intent, 250 Clark Street, prepared by Williams & Sparages and dated February 7, 2013. I’ve also discussed my comments and the proposed revisions with the project engineer. The revised submission satisfactory addresses the issues identified in my March 13th letter with respect to the drainage design. I do have just a few comments at this time: 1. The proposed plan calls for a siltation fence erosion control barrier. Additional measures (e.g. hay bales or silt socks) may also be needed. 2. It appears that the proposed project may entail the disturbance of an acre or more of land. If so, it will also be subject to the EPA Construction General Permit and require filing of a Notice of Intent under that program, and implementation of a Construction Stormwater Pollution Plan (SWPPP) in accordance with EPA guidelines. 3. The Pollution Prevention Plan included with the NOI addresses short-term construction related measures aimed at the site contractors. Per DEP requirements, a Long-Term Pollution Prevention Plan is still needed. As with the O&M Plan, this would be aimed at the parties responsible for maintaining the site 250 Clark Street, Stormwater Review 2 April 9, 2013 over the long term and should address snow storage locations, pavement sweeping, spill control and good housekeeping measures to be employed on the site in order to minimize pollutant exposure to stormwater. Given the nature of the operations on the site, the storage and use of potentially hazardous materials as well as any vehicle (or airplane) washing, deicing, etc. should also be addressed. Once again, I appreciate the opportunity to assist the North Andover Planning Board and Conservation Commission with the review of this project, and hope that this information is suitable for your needs. Please feel free to contact me if you or the applicants have any questions regarding the issues addressed herein. Sincerely, EGGLESTON ENVIRONMENTAL Lisa D. Eggleston, P.E. C: Jennifer Hughes, Conservation Coordinator