6600 MERRILL CREEK PKY BLDG A SHELL 2016-01-01 MF Import

S. Fenccs shall not bc pennitted whcre they would restrict wildlife movement through environmentally sensitive areas/wildlife corridors. (SEPA Plant and Animal and Land and Shoreline Use Policies) 4.3.3 Mitigating Impacts on Streams, Fish, and Fish Habitat 1. Areas with soils suitable for large scale inf;ltration should be protected. Due to the construction of new impervious surfaces, stormwater volumes will increase signi(icantly. Base flow reductions can only be mitigated by the use:�inf Itration systems for collected slormwater. Infiltrauon systems will be required wheneve. fea��ble, as determined by the Public Works Department, particularly for rooRop ronoff. This study arca, however, has few areas of soils suitable for large scale infihration. The Associated Sand and Gravcl property located south of Sievers-Duecy Blvd. is one area«�here stormwater is currently being infiltrated. Infiltration must continue to occur on that site. (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) 4.3.5 Mitigating Impacts of Development on Water Quaiity and Groundwater 1. Developments with hazardous materials on-site, including fuel tanks, must comply with all applicable locai, state and federal requirements. All developments using toxic or hazardous materials must incorporate facilities and procedures for the saCe handling and effective monitoring of toxic or hazardous materials, which include spill entrapment, training, and special handling, thus reducing the potential for release of hazardous or toxic materials to the groundwater system. (See Section 3.6 of the EIS) (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) 2. Staging areas for vehicle maintenance activities during construction must be specified. These areas must be well away from all drainage courses. (SEPA Water, Plant and Animal and Land and Shoreline Usc Policies) 3. Application of fungicides, herbicides, insecticides, and fertilizers is prohibited on all sites from January through April when soils arc frequently saturated and storm events generate substantial runoff. (SEPA \uater, Plant and Animal and Land and Shoreline Use Policies) 4. All stomi drains must be stenciled with language similar to the following: "Dump No Waste, Drains to (Stream/WetlandlGroundwater). This -eminder is typically spray-painted on to the „ ground adjacent to the catch basin with the usc of a stencil. The treatment needs to be repeated, approximately annually, when the paint wears oCf. The devcloper/owner may either perCorm the stenciling, or give pcnnission for voluntecr groups to enter onto the property and perform the stenciling. (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) 5. During construction activitics, all spills must be contained and removed in such manner as to prevent their entering the waters and soils of the state. Cleanup of spills shall take precedence over olher work on-site. (SEPA Watcr, Plant and Animal, and Land and Shoreline Use Policies) l2