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State Implementation Policy (SIP)
- The State Implementation Policy (SIP) applies to discharges of toxic pollutants into the inland surface waters, enclosed bays, and estuaries of California subject to regulation under the State’s Porter-Cologne Water Quality Control Act and the federal Clean Water Act. Such regulation may occur through the issuance of National Pollutant Discharge Elimination System permits or other relevant regulatory approaches. The SIP establishes a standardized approach for permitting discharges of toxic pollutants to non-ocean surface waters in a manner that promotes statewide consistency.
- Public Notice and Scoping Document: Water Quality Objectives for Cadmium and Related Implementation Methods.
- Get updates by email regarding the proposed amendment to the SIP to establish water quality objectives for cadmium and related implementation methods, subscribe online to the “Water Quality Objectives for Cadmium and Related Implementation Methods” mailing list
- Exception Procedures:
- California Toxics Rule (CTR): The U.S. Environmental Agency published the CTR in the Federal Register (65 Fed. Register 31682-31719), adding Section 131.38 to Title 40 of the Code of Federal Regulations, on May 18, 2000. See the full text of the CTR.
- Get updates by email regarding the Proposed Total Residual Chlorine and Chlorine-Produced Oxidants Policy of California (Chlorine Policy), subscribe online to the “Freshwater Plans and Policies” mailing list.
- Archives - Information related to the SIP amendments.