Ordinance 2213-97 - Laserfiche WebLink

• elevation without affecting fish outlet elevation on WPC1 and enhancing wetland along east fork passage. Expand and enhance EPC1. Expand and enhance between 74th and Madison. wetland along east fork between wetland along east fork between 74th and Madison. 74th and Madison. Swamp Creek Yes-Create and enhance wetland Yes-Implement previous Limited Potential-The wetlands that on Walter Hall Golf Course recommendations for Flood/Storm are not directly on Swamp Creek and including wetlands SC5a,b,c,d and Water Control Functions. less than 1 acre are isolated wetlands raise the outlet elevation of SC13. with limited biological significance. 4. Development of a project site must not result in significant adverse effects to the hydrology of wetlands on or adjacent to the site. Prior to application for Public Works permits and plan review by the Engineering and Public Services Department, a characterization of the hydrology of the wetland(s) 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) 5. 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) 6. 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) 7. The large bog/shrub/forested wetland in east Kasch Park must be protected from stormwater inputs, which will degrade the bog by raising pH and the nutrient level. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies) 8. 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 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. (See Section 3.6 of the EIS) (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) 29