3326 PAINE AVE 2018-01-01 MF Import

5. MINIMIIM REQUIREMENTS MINIMUM REQUIREMENT#1: PREPARATION OF STORMWATER SITE PLANS This project proposes to construct new impervious surfaces in excess of the minimum lhreshold so a final stormwater site plan and report has been prepared with this submittal. MI' �IMUM REQUIREMENT#2: CONSTRUCTION STORMWATER POLLUTION PRtVENTION (SWPPP) 1: Mark Clearing Limits One of the first steps in the "Conslruction Sequence" included on the clearing and grading plan sheets is for a surveyor to stake the limits of clearing and to have construction flagging�fencing or silt fencing placed along the limits prior to any other constrtiction activity. 2: Establish Construction Access The SWPPP ca'�s for the proposed construction entrance to be installed as the second step after the stahfng of clearing limits. A detail is provided on the plans. 3: Control Flow Rates This project will retain as much existing vegetation as possible and lots will be re- �egetated after grading is complete. In addition, the detentior pipe will be used as sediment trap during construction. Therefore, the flow restrictors will be in place to regulate runoff during construction. This will protect the downstream system frorn higher flows during construction. 4: Install Sediment Controls This site and SWPPP proposes to construct a construction entrance and siit fenciny to collect and contain the uediment on this site. In addition, inlet filters v+ili be installed in the new catch basins on the site. These features are intended to minimize the opportunity for sediment to leave the site via stormwater or on vehicles. The construction of these features is one of the first items requir�d in the "Construction Sequence". Mulch wili also be used on the exposed soil as necessary to limit erosion. 5: Stabilize Soils The "Construciion Sequence" and "TESC Notes" call for the stabilization of soils that remain unworked tor certain lengths of time based on the time of year. Stabilization techniques may include but not limited to muiching, plastic sheeting or hydroseeding, notes have been auded to the plan regarding protection for the stock pile area if necessary. G: Protect Slopes All slopes on site during construction are required to be protected with mulch or other means as specified in the construction sequence. 7 Protect Drain Inlets l�II nrw catch ba;ins �n-ill have inlet fdters installed to protect ihe cor�veyance system. — -- ii-ii5 Glaaer Properties page-9 December2011