EXH2092033654

PCHBPollution Control Hearings Board of the State of Washington

This kl IN only copy IMt MII I_ ==nt 0 Y**l will .ie. _N_lv.. cqD,/vim nBil w + i • Gommmtl_ , =Ill .... , AR 033654 Exhibit-2092 lli|liill Chapter 1 WQP Policy 1.22 Resource Contact: SoJ_draMarmin8 Rffective: July 15, 2001 BillMoore References: WAC 173- 2{}1A Revised: WQP Procedure 1-23 Adopting Supplemental Treatment as a Best Management Practice and Defining Compliance with Water Quality Standards for Stormwater Impacts for the Water Quality and SEA Programs. . ..... ,, Purpose: This policy establishes a procedure for applying _tormwater mitigation by adopting supplemental treatment as a Best Management Practice. .... This policy also defines how project compliance decisions wlll be made for permits covered under sections 401 and 402 of the Federal Clean Water Act. Application: To be used by Ecology Water Quality and SEA Program Staff when reviewing or permitting projects with stormwater impacts, and for determining eompliane.e with the Water Quality Standards for stormwater discharges, 1. Definingcompliancewithwaterqualitystandar_ for stormwaterdlseharllu Compliance with water quality standardsis defined as follows -Per WAC 17'$-201.4-160(3) "Activities which gen,mtenonpoint source pollution or acttvtffe$ which cause pollution of stormwater, shall be conducted so as to comply with the water quality standards. The primary means Io be Itw.dfor requirin& compliance with the standards shall be through beat management practice: (BMP,). BMPs ,hall b, applied so that when all appropriate combinations of BMPs are utilized, violation of water quality criteria _hall be prevented. _f a discharger is applying all BMP'$ appropriate or required by Ecology and a violation of…
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