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National Pollutant Discharge Elimination System (NPDES)
DRINKING WATER SYSTEM DISCHARGES
Water purveyors regularly discharge drinking water into storm drains or other conveyances that drain to surface waters. Planned discharges are part of a water purveyor's essential operations to comply with the federal Safe Drinking Water Act and the California Health and Safety Code for providing reliable and safe drinking water. Surface water discharges also occur from pipe breaks, system failures, and emergencies.
Section 402 of the Clean Water Act requires that a discharge of any pollutant or combination of pollutants to surface waters that are deemed waters of the United States be regulated by a National Pollutant Discharge Elimination System (NPDES) permit. To provide coverage to discharges by water purveyors to waters of the United States in compliance with Clean Water Act section 402, the State Water Board adopted the Statewide General NPDES Permit for Drinking Water System Discharges to Waters of the United States on November 18, 2014. To get coverage under the permit, a water purveyor (community drinking water system or wholesaler) must submit an application to the State Water Board no later than September 1, 2015. Alternatively, if a water purveyor does not need coverage under the permit, it must submit a notice of non-applicability to the State Water Board also by September 1, 2015.
It is the intention of the State Water Board to regulate all mandatory low-threat-type discharges from community water systems statewide with consistent regulation. This means that with the transition from Regional Water Board permits to the statewide permit, the Regional Water Boards will no longer be regulating the mandatory low-threat-type discharges from drinking water systems that meet the criteria of the statewide permit. The new statewide permit provides coverage for unplanned and emergency discharges in addition to discharges from supply wells and distribution systems. The statewide permit also grants a regulatory exemption to water purveyors for compliance with federal water quality criteria (the California Toxic Rule), and requires minimal monitoring and reporting.
- Final Statewide General NPDES Permit for Discharges from Drinking Water Systems
- Word Version of the Permit including Notice of Intent and Notice Of Non Applicability
- Final Resolution granting categorical SIP and Ocean Plan exceptions to water purveyors
- Application Check List
- Previous Outreach Workshops in February and March 2015
- Vacaville Workshop Presentation (February 24, 2015)
- Bay Area Workshop Presentation (March 6, 2015)
- California-Nevada American Water Works Association Operator Symposium (March 17, 2015)
- Metropolitan Water District Permit Overview Workshop Presentation (March 18, 2015)
- Revised Metropolitan Water District Permit Implementation Workshop Presentation (March 18, 2015)
- Previous Outreach Workshops in April and May 2015
- South Lake Tahoe Expo Permit Overview Workshop Presentation (April 29, 2015)
- South Lake Tahoe Expo Permit Implementation Workshop Presentation (April 29, 2015)
- Scheduled Outreach Workshops in May and June 2015
- Calleguas and San Luis Obispo Permit Overview Workshop Presentation (May 14-15, 2015)
- Calleguas and San Luis Obispo Permit Implementation Workshop Presentation (May 14-15, 2015)
- Sac Suburban Permit Implementation Workshop Presentation (June 5, 2015)
- San Diego Permit Overview Workshop Presentation (June 8, 2015)
- San Diego Permit Implementation Workshop Presentation (June 8, 2015)
- San Diego SDWA Implementation Workshop Presentation (June 8, 2015)
- Guidance for Determining NPDES Permitting Fees for Applicants of the Statewide General NPDES Permit for Discharges from Drinking Water Systems.
- Fee Schedule (NPDES Permit Fees): See 2200(b)(6) for the base annual fee.
Please Note: The California Water Code requires the State Water Board to adjust the fees each fiscal year to conform with the revenue levels set forth in the California Budget Act. Thus, the fees could change every year.
- Any pending Board item is subject to the ex parte communication disclosure requirements of Water Code section 13287. Any communications between interested persons and board members (other than at a noticed board meeting or submitted as a comment letter in compliance with the public notice) must be disclosed by the interested person within seven days of the communication. Sample disclosure forms are available.
Beginning 14 days before scheduled adoption by the Board, ex parte communications between interested persons and board members concerning any Board item are prohibited.
- Water Code Section 13287 Disclosures
(Please check back later)
- Draft Resolution and Draft Statewide General NPDES Permit for Discharges from Drinking Water Systems
Staff is proposing to the State Water Board a draft resolution and draft Statewide General NPDES Permit to address discharges from drinking water systems due to activities mandated by the federal Safe Drinking Water Act and California Health and Safety Code. The draft resolution proposes that the State Water Board grant an "exception" to water purveyors statewide, from complying with requirements of the State Water Board Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bays, and Estuaries of California and the California Ocean Plan. The draft Statewide General NPDES Permit proposes to implement the "exception," and provide regulatory coverage for water purveyors enrolled in the permit. On November 18, 2014 the State Water Board will hold a public hearing on changes made to the final draft mitigated negative declaration (first bullet) and an adoption meeting for the final draft resolution and final draft permit (second bullet).
- Public Hearing on Changes to the Final Draft Mitigated Negative Declaration
- Meeting to Adopt Final Draft Resolution and Final Draft
- Third Revised Public Notice
- Response to Comments on the July 3, 2014 Draft Statewide Permit
- Comments Received on the July 3 Draft Statewide NPDES Permit (8/19/2014)
- Final Draft Resolution
- Final Draft Mitigated Negative Declaration
- Final Draft Statewide NPDES Permit
- Summary of Draft Permit Changes
- August 5, 2014 - Public Hearing Presentation
- Second Revised Public Notice
- Draft Resolution
- Revised Draft Statewide Permit for Discharges From Drinking Water Systems - July 3, 2014
- Fact Sheet
- July 9, 2014 Stakeholder Meeting in Oakland
- July 21, 2014 Stakeholder Meeting in Sacramento
- July 23, 2014 Stakeholder Meeting in Southern California
- Draft Statewide General NPDES Permit for Discharges from Drinking Water Systems - June 6, 2014
- Stakeholder Workshop for Proposed General NPDES Permit for Drinking Water Systems Discharge
The State Water Board is continuing its stakeholder outreach effort for the development of a drinking water system discharge permit for the Regional Water Boards to implement per their discretion. The proposed permit will be a new general NPDES permit as required by Clean Water Act section 402 for point source discharges of pollutants to waters of the United States.On May 12, 2014, Water Board staff held a stakeholder workshop in San Diego, California. The following materials were presented at the workshop:
- Permit Questions: Renan Jauregui - (916) 341-5505 or email at: Renan.Jauregui@waterboards.ca.gov
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