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1. Permittees who discharge to segments of waterbodies listed as impaired by the <br /> State of Washington under Section 303(d) of the Clean Water Act for turbidity, <br /> fine sediment,high pH,or phosphorus,must conduct water quality sampling <br /> according to the requirements of this section, and Special Conditions S4.C.2.b-f <br /> and S4.C.3.b-d, and must comply with the applicable numeric effluent limitations <br /> in S8.0 and S8.D. <br /> 2. All references and requirements associated with Section 303(d) of the Clean Water <br /> Act mean the most current listing by Ecology of impaired waters(Category 5)that <br /> exists on January 1,2016, or the date when the operator's complete permit <br /> application is received by Ecology,whichever is later. <br /> B. Limits on Coverage for New Discharges to TMDL or 303(d)-listed Waters <br /> Operators of construction sites that discharge to a TMDL or 303(d)-listed waterbody are <br /> not eligible for coverage under this permit unless the operator: <br /> 1. Prevents exposing stormwater to pollutants for which the waterbody is impaired, <br /> and retains documentation in the SWPPP that details procedures taken to prevent <br /> exposure on site; or <br /> 2. Documents that the pollutants for which the waterbody is impaired are not present <br /> at the site,and retains documentation of this finding within the SWPPP; or <br /> 3. Provides Ecology with data indicating the discharge is not expected to cause or <br /> contribute to an exceedance of a water quality standard, and retains such data on <br /> site with the SWPPP. The operator must provide data and other technical <br /> information to Ecology that sufficiently demonstrate: <br /> a. For discharges to waters without an EPA-approved or-established TMDL,that <br /> the discharge of the pollutant for which the water is impaired will meet in- <br /> stream water quality criteria at the point of discharge to the waterbody; or <br /> b. For discharges to waters with an EPA-approved or-established TMDL,that <br /> there is sufficient remaining wasteload allocation in the TMDL to allow <br /> construction stormwater discharge and that existing dischargers to the <br /> waterbody are subject to compliance schedules designed to bring the waterbody <br /> into attainment with water quality standards. <br /> Operators of construction sites are eligible for coverage under this permit if <br /> Ecology issues permit coverage based upon an affirmative determination that the <br /> discharge will not cause or contribute to the existing impairment. <br /> C. Sampling and Numeric Effluent Limits for Discharges to Water Bodies on the 303(d) ' <br /> List for Turbidity, Fine Sediment,or Phosphorus <br /> 1. Permittees who discharge to segments of water bodies on the 303(d) list(Category <br /> 5)for turbidity, fine sediment, or phosphorus must conduct turbidity sampling in <br /> accordance with Special Condition S4.C.2 and comply with either of the numeric <br /> effluent limits noted in Table 5 below. ' <br /> Construction Stormwater General Permit <br /> Page 24 <br /> 1 <br />