815 SIEVERS-DUECY BLVD 2025-05-05

Permanent slopes steeper than 25%shall be designed by a professional civil or geotechnical engineer. The design should present appropriate erosion control measures which may include: hydroseeding, erosion control blankets. rip-rap,jute matting, and visqueen. (SEPA Earth and Water Policies) 3.3.10. Grading/filling on-site shall not adversely affect adjoining sites. (SEPA Earth and Water Policies) SECTION 4: SURFACE/GROUNDWATER, PLANTS AND ANIMALS 4.3.2.7. Exotic invasive species must be controlled. English ivy (Hedera helix)shall not be planted in the Subarea. Properties must be maintained to eliminate Scot's broom and other invasive species. (SEPA Plant and Animal and Land and Shoreline Use Policies) 4.3.5.1. Developments with hazardous materials on-site, including fuel tanks, must comply with all applicable local, state and federal requirements. All developments using toxic or hazardous materials must incorporate facilities and procedures for the safe 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. (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) 4.3.5.2. 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 Use Policies) 4.3.5.3.Application of fungicides, herbicides, insecticides, and fertilizers is prohibited on all sites from January through April when soils are frequently saturated and storm events generate substantial runoff. (SEPA Water, Plant and Animal and Land and Shoreline Use Policies) 4.3.5.4.All storm drains must be stenciled with language similar to the following: "Dump No Waste, Drains to (Stream/Wetland/Groundwater)." This reminder is typically spray-painted on to the ground adjacent to the catch basin with the use of a stencil. The treatment needs to be repeated, approximately annually, when the paint wears off. The developer/owner may either perform the stenciling, or give permission for volunteer groups to enter onto the property and perform the stenciling. (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) 4.3.5.5. During construction activities, 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 other work on-site. (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) 4.3.5.9. Sites that use firefighting foam (AFFF) must construct containment systems for an acceptable ratio of potentially released foam and solution. The acceptable ratio shall be determined by the Responsible Official in consultation with the Department of Ecology and Public Works Department. The solution can then be metered out at a rate that would not impact wastewater treatment plants or aquatic insects. (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) I Ila Page 4 of 20 Project No. REVI20-036, REVI20-037, REVI20-038 EVERETT