Orange County Municipal NPDES Storm Water Permit

Orange County Municipal NPDES Storm Water Permit


Water Code Section 13383 Order to Submit Method to Comply With Statewide Trash Provisions

The State Water Resources Control Board (State Water Board) adopted statewide Trash Provisions to address the impacts trash has on the beneficial uses of surface waters.  The Trash Provisions establish a statewide water quality objective for trash and a prohibition of trash discharge, or deposition where it may be discharged, to surface waters of the State. For Phase I Co-permittees that have regulatory authority over Priority Land Uses, the Trash Provisions require implementation of the prohibition through requirements incorporated into Phase I MS4 Permits and/or through monitoring and reporting orders, by June 2, 2017.  Since the Trash Provisions have not yet been implemented through the Orange County MS4 Permit, the Santa Ana Regional Board is implementing the initial steps of the Trash Provisions through the below orders in accordance with Water Code section 13383, as specified in the Trash Provisions.  Below are the 13383 Orders that were issued on June 2, 2017.

Enclosures for June 2, 2017 13383 Orders to Submit Method to Comply with Statewide Trash Provisions

Fourth Draft - Proposed Orange County Municipal NDPES Storm Water Permit (Draft Order No. R8-2016-0001)


On August 24, 2016, the Santa Ana Regional Board circulated the Fourth Draft Orange County MS4 Permit for public comment with a comment deadline of September 23, 2016.  The public comment period deadline was subsequently extended to November 22, 2016.  By this notice, dated November 8, 2016, the Santa Ana Regional Board hereby withdraws the Fourth Draft Orange County MS4 Permit from further public comment and formally closes the public comment period.   Prior to holding a public hearing to consider adoption of the Orange County MS4 permit, the Santa Ana Regional Board will circulate an updated draft of the Permit for an additional public comment period of no less than 30 days.


Report of Waste Discharge

Orange County Municipal NPDES Storm Water Permit (Order No. R8-2009-0030, Amended by Order No. R8-2010-0062)

Model WQMP and Technical Guidance Document

At the March 22, 2011 Regional Board meeting, the Regional Board took public comment on the second draft of the updated Model Water Quality Management Plan (Model WQMP), Technical Guidance Document (TGD) and supporting documents that had been submitted by the County of Orange, on the behalf of the permittees under Order No. R8-2009-0030 (as amended by Order No. R8-2010-0062), as well as an Errata Sheet that had been prepared by Regional Board staff.

At the conclusion of the public comments, the Regional Board directed the Executive Officer to consider the comments that were received and to approve the Model WQMP, TGD and supporting documents as modified by the Errata Sheet and as further modified by the Executive Officer to address, as appropriate, any remaining concerns and any inconsistencies.

On May 19, 2011, The Executive Officer approved the March 22, 2011 Draft Model WQMP, TGD and supporting documents as modified by the May 17, 2011 Errata Sheet. (see below)


Additional postings will be announced to interested parties using the Regional Board's E-Mail Notification System (see link below on subscribing to this list and note that you must re-subscribe when changing email addresses). 

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