Document 3NZYRaJdzDEDwng7mMpLKJ2jy

UNITED STATESUNITED STATES ENVIRONMENTAL PROTECTION AGENCY *REGION 1 ENVIRONMENTAL AGENCY5 POST OFFICEB OSSTQONU,A RMAE ,0 21S0U9-I3T9E12 100 PROTECTION Date:Dated as shown on electronic signature(s) Subj:Inspection Report Clean Water Act - National Pollutant Discharge Elimination System (" NPDES ") Summerwind Place Residential Development From:Eleanor Horvath, Clean Water Act Inspector Thru:Karissa Oakes, Clean Water Act Inspector Katie Rosenberg, Clean Water Act Inspector Damian Bednarz, Clean Water Act Inspector To:FileELEANORDigitally signed by ELEANOR HORVATH I. Facility InformationHORVATHDate: 2024.11.05 13:20:42 -05'00 ' A. Facility Name:Summerwind Place Residential Development B. Facility Location:Tower Place Greenland, NH 03840 C. Facility Contacts:Andrea McCurry, Office Manager, Chinburg Properties Dale Moreau, Site Superintendent, Chinburg Properties Chinburg Properties, Inc. 3 Penstock Way Newmarket, NH 03857 D. NPDES ID No (s).: NHR1001W7 II. Background Information A. Date(s) of inspection: October 22, 2024 B. Weather Conditions: Sunny, 70 Fahrenheit C. US EPA Representative(s): Eleanor Horvath Karissa Oakes Katie Rosenberg 1 ED_019088A_00005825-00001 D. State / Local Representative(s): None E. Federally Enforceable Requirements Covered During the Inspection: National Pollutant Discharge Elimination System Construction General Permit (CGP), Effective February 17th, 2022 F. Previous Enforcement Actions: None III. Type and Purpose of Inspection Routine Compliance Evaluation IV. Facility Description Summerwind Place Residential Development, referred to hereafter as the " site, " is an ongoing construction project that began earth - disturbing activity in July 2024. The site is approximately 15 acres and is located off Tower Place in Greenland, NH. It is being developed by Chinburg Properties, Inc. into a 55+ residential community consisting of approximately 40 units. The site is surrounded by open space to the north and east, I-95 to the west, and a previously built residential community to the south. There are mapped wetlands and Packer Brook approximately 0.1 miles to the east of the disturbed area. V. Inspection Eleanor Horvath, Karissa Oakes, and Katie Rosenberg (" EPA Inspectors ") arrived on the site at approximately 9 AM. EPA did not observe signage indicating that the site was covered under the CGP from the public roadway. Inspector Horvath called Ms. Shawna Sammis, the Assistant Land Development Manager from Chinburg Properties listed on the site's CGP Notice of Intent, at approximately 9 AM and left a voicemail. At approximately 10 AM, Inspector Horvath called the main office of Chinburg Properties and left a voicemail, identifying herself as an EPA Clean Water Act Inspector and explaining the purpose of the inspection. Ms. Andrea McCurry of Chinburg Properties returned her call at approximately 10:15 AM, granted site access, and indicated that she would let the Chinburg employees onsite know EPA would be present. Inspector Horvath indicated that Chinburg would be receiving an inspection report and photolog, as well as some follow - up questions about the site, after the inspection. 2 ED_019088A_00005825-00002 A. Opening Conference At approximately 11:15 AM, EPA met Mr. Dale Moreau, the site superintendent. Inspector Horvath presented her credentials, informed Mr. Moreau that Ms. McCurry had granted EPA site access on behalf of Chinburg and explained the purpose of the inspection. Inspector Horvath asked Mr. Moreau whether he was able to answer some questions regarding the stormwater flow and erosion controls of the site and requested a copy of the site's Storm Water Pollution Prevention Plan (" SWPPP "). Mr. Moreau explained that these were the responsibilities of Ms. Sammis, but that he would respond to the best of his abilities. Mr. Moreau indicated that he was unaware if there was a copy of the site's SWPPP onsite. He said that questions regarding erosion control inspections and stormwater flow would be better directed toward Ms. Sammis. Mr. Moreau explained to EPA that there were five completed houses onsite at the time of inspection, with the addition of a clubhouse. There will be 40 total units when the project is complete. Construction began onsite in approximately July 2024, and house construction began in September. Lots were unstabilized but being actively worked on every day. The estimated completion date for the project depends on the market and how quickly properties sell as they are developed. Mr. Moreau estimated that the site would be under construction for approximately two and a half years. B. Facility Tour EPA began the site tour at approximately 10:50 AM. They began at the western corner of the site near the entrance and subdivision sign, walking east along the perimeter of the disturbed area. EPA observed a mulch berm beginning at the western corner of the disturbed area and continuing along the boundary between the site and the undisturbed open space. Along the roadway, there was a gravel barrier between the unstabilized lots and the paved road. EPA observed minor trackout of dirt from the lots. Near the southeastern corner of the site, EPA observed multiple stockpiles of dirt that were actively being worked with. The aforementioned mulch berm continued around these stockpiles. On the eastern edge of the site, EPA observed two detention basins covered on all sides, as well as internally, with grasses. There was a culvert emptying into the second detention basin that appeared to drain from three catch basins in the road, the first catch basins observed by EPA (photo locations 424, 425). More stockpiles were observed in the lots along the eastern edge of the site. The mulch berm continued behind these basins and stockpiles. 3 ED_019088A_00005825-00003 Moving north to the northeastern corner of the site, EPA observed a third detention basin. This basin consisted of another culvert emptying into a portion of the basin filled with riprap, which was connected to a larger portion that was stabilized on all sides, as well as internally, with grasses. At the northeastern corner of the site EPA also observed more stockpiles, as well as a square pit with a small amount of standing water at the bottom. The mulch berm continued behind this detention basin, stockpiles, and pit. EPA then moved west along the northern edge of the site. More stockpiles, unstabilized slopes, and the continuation of the mulch berm were observed. Near the northwestern corner of the site, the mulch berm ended. Along the remaining perimeter of the site, there was instead a large earthen berm stabilized with grasses on all sides. Returning to near the site entrance at the western corner of the site, EPA observed the site's concrete washout pit and found concrete mixtures outside of the designated pit (photo location 445). EPA also observed two more catch basins in the road near the entrance. The site tour concluded at approximately 11:40 AM. C. Site Photos Photo Location ID Photo NameImage Descriptions 393 394 406 407 408 409 410No catch basins in road 411 412 413 414 415 416Mulch berm all around site 417 418 419 420 421 422 423 424 425 426 427 4 ED_019088A_00005825-00004 428 429 430 431 432 Pit 433 434Drinking water 435 436 437 438 439 440 441 442 443Big earthen berm 444Concrete washout 445 446 447 448 5 ED_019088A_00005825-00005