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6. If construction activity extends beyond the certified waiver period for any reason, <br /> the operator must either: <br /> a. Recalculate the rainfall erosivity"R"factor using the original start date and a <br /> new projected ending date and, if the"R"factor is still under 5 and the entire <br /> project falls within the applicable regional timeframe in Special Condition <br /> S2.C.2.b,complete and submit an amended waiver certification form before the <br /> original waiver expires; or <br /> b. Submit a complete permit application to Ecology in accordance with Special <br /> Condition S2.A and B before the end of the certified waiver period. <br /> S3. COMPLIANCE WITH STANDARDS <br /> A. Discharges must not cause or contribute to a violation of surface water quality standards <br /> (Chapter 173-201A WAC),ground water quality standards(Chapter 173-200 WAC), <br /> sediment management standards(Chapter 173-204 WAC), and human health-based <br /> criteria in the National Toxics Rule(40 CFR Part 131.36).Discharges not in compliance <br /> with these standards are not authorized. <br /> B. Prior to the discharge of stormwater and non-stormwater to waters of the State,the <br /> Permittee must apply all known,available,and reasonable methods of prevention, <br /> control,and treatment(AKART). This includes the preparation and implementation of <br /> an adequate SWPPP,with all appropriate BMPs installed and maintained in accordance <br /> with the SWPPP and the terms and conditions of this permit. <br /> C. Ecology presumes that a Permittee complies with water quality standards unless <br /> discharge monitoring data or other site-specific information demonstrates that a <br /> discharge causes or contributes to a violation of water quality standards, when the <br /> Permittee complies with the following conditions. The Permittee must fully: <br /> 1. Comply with all permit conditions,including planning, sampling,monitoring, <br /> reporting, and recordkeeping conditions. <br /> 2. Implement stormwater BMPs contained in stormwater management manuals <br /> published or approved by Ecology, or BMPs that are demonstrably equivalent to <br /> BMPs contained in stormwater technical manuals published or approved by <br /> Ecology, including the proper selection, implementation, and maintenance of all <br /> applicable and appropriate BMPs for on-site pollution control. (For purposes of <br /> this section,the stormwater manuals listed in Appendix 10 of the Phase I <br /> Municipal Stormwater Permit are approved by Ecology.) <br /> D. Where construction sites also discharge to ground water, the ground water discharges <br /> must also meet the terms and conditions of this CSWGP. Permittees who discharge to <br /> ground water through an injection well must also comply with any applicable <br /> requirements of the Underground Injection Control(UIC)regulations, Chapter 173-218 <br /> WAC. <br /> Construction Stormwater General Permit <br /> Page 12 <br />