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§ 2914.5. Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bay...

23 CA ADC § 2914.5BARCLAYS OFFICIAL CALIFORNIA CODE OF REGULATIONS

Barclays Official California Code of Regulations Currentness
Title 23. Waters
Division 3. State Water Resources Control Board and Regional Water Quality Control Boards
Chapter 22. State Policy for Water Quality Control
23 CCR § 2914.5
§ 2914.5. Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bays, and Estuaries.
The amendments for the Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bays, and Estuaries of California (SIP) consist of:
(1) Discharger-Specific Water Effect Ratios (WERs):
The language of the SIP has been amended to allow Regional Water Quality Control Boards (Regional Water Boards) to use discharger-specific WERs in the National Pollutant Discharge Elimination System (NPDES) permitting process. The development of WERs would still have to use U.S. Environmental Protection Agency (USEPA) guidance or other scientifically defensible protocols, but the approvals of WERs by the State Water Resources Control Board (State Water Board) and USEPA through the adoption of a Regional Water Quality Control Plan provision would not be required. The State Water Board and USEPA would still be involved in the development of the WER through the public review process of the NPDES permit containing the proposed Site-Specific Objective and associated effluent limit.
(2) Modify the language ofStep 6of reasonable potential analysis:
The language of the SIP has been amended to allow the reasonable potentialStep 6trigger to apply only to situations where ambient background concentrations are greater than the water quality criterion or objective, and the pollutant is detected in the effluent. Language would also be added to require monitoring in situations where ambient background concentrations are greater than the water quality criterion or objective, and the pollutant is not detected in the effluent.
(3) Modify language to improve clarity:
The SIP has been amended to incorporate changes that improves clarity and provides a better understanding of how SIP provisions are to be applied in permits. The changes also reduce inconsistencies in permits written by different Regional Water Boards.
Note: Authority cited: Section 13140, Water Code. Reference: Sections 13142 and 13143, Water Code.
HISTORY
1. Renumbering of former section 2917 to section 2914.5 filed 4-10-2006; operative 4-10-2006 pursuant to Government Code section 11353 (Register 2006, No. 15).
This database is current through 6/17/22 Register 2022, No. 24
23 CCR § 2914.5, 23 CA ADC § 2914.5
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