11.05.050 Stormwater Management and Site Development Manual.
A. General. The Pierce County Stormwater Management and Site Development Manual contains requirements and guidelines to assist persons discharging into municipal drainage systems to stay in compliance with this Chapter. The Manual shall present best management practices, procedures and guidance for existing facilities and activities and for new development activities. The Manual is available for inspection and sale through Pierce County Planning and Public Works. In addition, the Pierce County Planning and Public Works Storm Drainage and Surface Water Management Utility will provide, upon reasonable request, available technical assistance materials and information, and information on outside financial assistance options to persons required to comply with this Chapter.
B. Exemptions. Persons implementing BMPs through other federal, state, or local programs will not be required to implement the BMPs prescribed in the Manual, unless the Director determines that the alternative BMPs are ineffective in reducing the discharge of pollutants. If another program requires the development of a plan, the person shall make their plan available to Pierce County Planning and Public Works Storm Drainage and Surface Water Management Utility upon request. Persons who qualify for exemptions include, but are not limited to, those:
1. Required to obtain or permitted under a general or individual NPDES permit for stormwater discharges from the Washington State Department of Ecology or Environmental Protection Agency;
2. Implementing and maintaining, as scheduled, a farm management plan approved by a Conservation District;
3. Engaged in forest practices, with the exception of Class IV, and Class IVA Special general forest practices. This Section will apply to Class IV general forest practices on lands platted after January 1, 1960, or on lands being converted to another use, or where the activity is taking place in areas designated by the Washington State Department of Natural Resources as lands with a likelihood of future conversion.