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Elks Engineer Comply.pdfSubstantial Compliance Statement To: Sarah La Valley Northampton Conservation Commission Planning & Sustainability City Hall 210 Main St., Room 11 Northampton, MA 01060 From: Wilfred A. Morin, P.E. MA License 55294 32 Laurel Park Northampton, MA O 1060 Sarah, After reviewing the relevant documents, it is my determination that the above Order of Conditions under MA DEP file 246-500 has been satisfied. The foot-for-foot compensatory storage shown in the Site Volume Table on the original plan set by Associated Builders dated 11/20/2001, page LS, has been met or exceeded. Some noteworthy discrepancies from the plan and Order of Conditions to the existing location include: Attachment B No. 19 It is unclear if the plans were made available on site during construction. Attachment B No. 22 there is no backflow preventer on the upstream side of the extended detention basin outflow drain manhole Attachment B No. 26 It is unclear if a wetland scientist was on site during construction. Attachment B No. 27 It is unclear if the machine work to install the outlet of the detention basin was done from the top of the bank. _Attachment B No. 30 It is unclear if the invasive plants were removed along the river bank. Attachment B No. 31 & 32 Vegetation unlike any in the original plan thrive in the resource area. It is unclear if the Conservation Commission has received any reports on the re-vegatation activities or changes to the wetiand restoration plan. Attachment B No. 38 It is unclear if the Conservation Commission has received any inspection or maintenance reports regarding the elevations of the F orebay and Detention Basin. These elevations in the current As-built are the same as when grading of those areas originally was installed. Wilfred Morin