1450 80TH ST SW 2018-01-02 MF Import

MAR-20-02 10,42 FROM.EVF.RETT PLANNING DEPT ID.4262678742 PAGE 13/2E c 3. Development of a project site must not result in significant adverse effects to the hydrology of wetlands on or adjacent to the cite. Prior to application for Public Works permits and plan review by the Engineering and Public Services Department, a characterization of t11e hydrology of the wetlands) on or adjacent to this project that may be affected by the development of this site must be submitted to and approved by the Planning and Public Works Departments. The information submitted for approval must also make recommendations regarding the rate and/or volume of stormwater which could be discharged to the wetland after development without adversely impacting the wetland. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies) 4. Natural wetlands and wetlands created for wetland mitigation may not be used to meet stormwater detention requirements. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies) 5. Discharge of water to wetlands must mimic natural discharges as much as is feasible. Point source discharges shall not be created where they do not naturally occur. Techniques that result in dispersed discharge, such as dispersion trenches or buried perforated pipe located at wetland buffer edges, can be used to mimic naturally occurring sheet flow into wetlands. (SEPA Plant and Animal, Water, and land and Shoreline Use Policies) 6. All trash located in the preserved wetlands, streams, and their associated buffers must be removed. Trash removal should occur on at least a semi-annual basis following completion of construction. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies) 4.3.5 Mitigating Impacts of Development on Water Quality and Groundwater 1. Developments with hazardous materials on -site, including fuel tanks, must comply with all pplicabie 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. (See Section 3.6 of the EIS) (SEPA Water, Plant and Animal, and Land and Shcreline 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 Use Policies) 3. Application of ftrngicides, herbicides, insecticides, and fertilizers is prohibited on all site: 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)