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Groundwater VOC and Fuel General Permit ORDER NO.R2-2012-0012
<br /> NPDES NO.CAG912002
<br /> California (State Implementation Policy or SIP). The SIP became effective on Apri128,2000,
<br /> with respect to the priority pollutant criteria promulgated for California by USEPA through the
<br /> NTR and to the priority pollutant objectives established by the Regional Water Board in the
<br /> Basin Plan. The SIP became effective on May 18, 2000, with respect to the priority pollutant
<br /> criteria promulgated by USEPA through the CTR. The State Water Board adopted amendments
<br /> to the SIP on February 24, 2005,that became effective on July 13, 2005. The SIP establishes
<br /> implementation provisions for priority pollutant criteria and objectives and provisions for
<br /> chronic toxicity control. Requirements of this Order implement the SIP.
<br /> L. Recycled Water Policy. The State Water Board adopted Resolution No. 2009-0011 (Policy for
<br /> Water Quality Control for Recycled Water) on February 3, 2009. The policy is intended to
<br /> promote sustainable local water supplies by increasing the acceptance and promoting the use of
<br /> recycled water. It sets a goal of increasing recycled water use statewide by at least one million
<br /> acre feet per year by 2030. The policy also requires Regional Water Boards to exercise their
<br /> authority to the fullest extent possible to encourage recycled water use and to develop
<br /> watershed-based salt and nutrient management plans to ensure that groundwater resources are
<br /> not degraded by recycled water use.
<br /> M. Alaska Rule. On March 30, 2000, USEPA revised its regulation that specifies when new and
<br /> revised state and tribal water quality standards (WQS)become effective for CWA purposes. [40
<br /> CFR 131.21; 65 Fed. Reg. 24641 (Apri127, 2000)] Under the revised regulation(also known as
<br /> the Alaska rule), new and revised standards submitted to USEPA after May 30, 2000,must be
<br /> approved by USEPA before being used for CWA purposes. The final rule also provides that
<br /> standards already in effect and submitted to USEPA by May 30, 2000, may be used for CWA
<br /> purposes, whether or not approved by USEPA.
<br /> N. Stringency of Requirements for Individual Pollutants. This Order contains both technology-
<br /> based and water quality-based effluent limitations (WQBELs) for individual pollutants.
<br /> Derivation of these limitations is discussed in the Fact Sheet (Attachment F.) This Order's
<br /> technology-based pollutant restrictions on benzene, carbon tetrachloride, chloroform, 1,1-
<br /> dichloroethane, 1,2-dichloroethane, 1,1-dichloroethylene, ethylbenzene,methylene chloride,
<br /> tetrachloroethylene, toluene, cis-1,2-dichloroethylene, trans-1,2-dichloroethylene, 1,1,1-
<br /> trichloroethane, 1,1,2-trichloroethane, trichloroethylene, vinyl chloride, total xylenes,methyl
<br /> tertiary butyl ether, total petroleum hydrocarbons, and trichlorotrifluoroethane implement the
<br /> minimum applicable federal technology-based requirements and meet requirements of the Basin
<br /> Plan.
<br /> WQBELs have been derived to implement WQOs that protect beneficial uses. Both the
<br /> beneficial uses and the WQOs have been approved pursuant to federal law and are the applicable
<br /> federal water quality standards. To the extent that toxic pollutant WQBELs were derived from
<br /> the CTR,the CTR is the applicable standard pursuant to 40 CFR 131.38. The procedure for
<br /> calculating individual WQBELs for priority pollutants is based on the SIP. Most beneficial uses
<br /> and WQOs contained in the Basin Plan were approved under State law and submitted to and
<br /> approved by USEPA. Any WQOs and beneficial uses submitted to USEPA prior to May 30,
<br /> 2000, but not approved by USEPA before that date, are nonetheless "applicable water quality
<br /> standards for the purposes of the CWA"pursuant to 40 CFR 13 l.21(c)(1).
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<br /> Limitations and Discharge Requirements
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