A Resolution Approving an Amendment to the Water Quality Control Plan for the San Diego Basin (9) to Change the Nitrate Water Quality Objective for Groundwaters

Summary

SCH Number
2016069009
Lead Agency
Regional Water Quality Control Board, Region 9 (San Diego), San Diego (Regional Water Quality Control Board, Region 9)
Document Title
A Resolution Approving an Amendment to the Water Quality Control Plan for the San Diego Basin (9) to Change the Nitrate Water Quality Objective for Groundwaters
Document Type
NOD - Notice of Determination
Received
Posted
6/7/2016

Document Description
Incorporate the Onsite Wastewater Treatment Systems Policy, and to Incorporate Miscelllaenous Updates The CA Regional Water Quality Control Board, San Diego Region, adopted Resolution No. R9-2015-0008 on April 15, 2015, amending the Water Quality Control Plan for the San Diego Basin (9) (Basin Plan). The SWRCB approved the amendment by adopting State Board Resolution No. 2015-0066 on Nov. 17, 2015. The purpose of this Basin Plan amendment is to revise several chapters within the Basin Plan. The nitrate water quality objective for groundwater was made consistent with the allowable maximum contaminant level for drinking water at 45 mg/L nitrate as NO3 in all hydrologic areas/subareas with numeric objectives, except in the Warner Valley Hydrologic Area. Warner Valley's freshwater replenishment beneficial use designation for groundwater precludes raising the nitrate water quality objective. The Basin Plan amendment revises existing provisions for regulation of onsite wastewater treatment systems and incorporates the provisions of the SWRCB Water Quality Control Policy for Siting, Design, Operation, and Maintenance of Onsite Wastewater Treatment Systems. Implementation provision prohibiting private ownership of community sewerage systems was removed from the Basin Plan. Other revisions also included addition of descriptions of current statewide policies, deletion of expired conditional waivers, and other minor non-substantive changes.

Contact Information
Jody Ebsen
Regional Water Quality Control Board, Region 9
2375 Norhtside Drive, Suite 100
San Diego, CA 92108

Phone : (619) 521-3965
Jody.Ebsen@waterboards.ca.gov

Location

Counties
Orange Riverside San Diego

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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