San Diego Region - Storm Water
The Storm Water Management Unit's main focus is in implementing permitting, compliance, and other activities to reduce pollutants in municipal, construction, and industrial storm water runoff. The Unit also provides important assistance in dispersing state grant funds to worthy projects that support activities for the reduction and prevention of storm water pollution. With the adoption of the Regional MS4 Permit in 2013, a major shift was made from prescriptive actions to an outcome based permitting approach with a focus on measuring and achieving improvements in storm water discharges and receiving water quality. The Unit is actively engaged in overseeing the development and implementation of Water Quality Improvement Plans for eight Watershed Management Areas in San Diego County which are required by the new Regional MS4 Permit. The Unit also regulates storm water runoff from Caltrans and Small MS4 systems (Phase II) through Statewide Permits issued by State Water Board. Both the industrial and construction storm water program have Statewide Permits and the Unit implements them through a combination of inspections, enforcement, and outreach.
STORM WATER MANAGEMENT UNIT STAFF CONTACTS
|Program||Area of Responsibility||Staff||Contact|
|Program Management, Cal Trans Storm Water||San Diego, Orange, Riverside||Laurie Walsh||(619) 521-3373
|Municipal Storm Water||San Diego County||Christina Arias||(619) 521-3361
|Orange County||Laurie Walsh||(619) 521-3373
|Riverside County||Wayne Chiu||(619) 521-3354
|Construction, Industrial Storm Water||Orange and Riverside Counties||Tony Felix||(619) 521-5921
|Construction and Industrial Storm Water||San Diego County||Whitney Ghoram||(619) 521-8040
|Phase II||San Diego, Orange, and Riverside||Tony Felix||(619) 521-5921
THE SAN DIEGO REGIONAL MS4 PERMIT
The Regional MS4 Permit jointly covers 39 municipal, county government, and special district entities (referred to jointly as Copermittees) located in Southern Orange County, Southwestern Riverside County, and San Diego County who own and operate large MS4s which discharge storm water (wet weather) runoff and non-storm water (dry weather) runoff to surface waters throughout the San Diego Region. The Copermitees will be covered by the Regional MS4 Permit in a phased a manner as their current MS4 permits expire.
PROPOSED AMENDMENTS TO ORDER NO. R9-2013-0001, TENTATIVE ORDER NO. R9-2015-0100
The San Diego Water Board is considering amendments to the Regional MS4 Permit in response to the Riverside County Copermittees’ Report of Waste Discharge submitted May 8, 2015.
In addition to designating the Riverside County Copermittees as MS4 dischargers responsible for compliance with the terms and conditions of the Regional MS4 Permit, the Tentative Order also proposes to amend the Regional MS4 Permit to address a variety of other issues including 1) incorporation of an option to utilize the Water Quality Improvement Plan to demonstrate compliance with receiving water prohibitions and limitations, 2) clarification of land development requirements describing when a development project should be subject to the Priority Development Project requirements, 3) amendment to the requirements for updating the BMP Design Manual as a result of corrections to the priority development project definitions,4) clarification of requirements for non-storm water discharges covered by the Statewide NPDES Permit for Drinking Water Systems and the San Diego Water Board’s General Waste Discharge Requirements for Groundwater Extraction Discharges to Surface Waters, and 5) clarification of the Indicator Bacteria, Project I - Beaches and Creeks and Los Penasquitos Lagoon Sediment Total Maximum Daily Load requirements to increase consistency with the Basin Plan Amendments. If adopted, the Tentative Order will supersede the Riverside County Copermittees’ current Fourth Term MS4 Permit, Order No. R9-2010-0016.
Public Comment Period
The San Diego Water Board will accept written comments on the Tentative Order and proposed changes to the Regional MS4 Permit. Written comments must be received no later than 5:00 p.m. on Monday, September 14, 2015.
The Public Hearing on Tentative Order No. R9-2015-0100 will be held during the San Diego Water Board meeting scheduled for November 18, 2015. More information on the Public Hearing is found in the Notice of Opportunity to Comment and Public Hearing.
- Notice of Opportunity to Comment and Public Hearing
- Tentative Order No. R9-2015-0100
- Attachment 1 - Revised Order No. R9-2013-0001
- Attachment 2 - Revised Fact Sheet to Order No. R9-2013-0001
- Riverside County Copermittees Report of Waste Discharge
PROPOSED AMENDMENTS TO ORDER NO. R9-2013-0001, AS AMENDED BY ORDER NO. R9-2015-0001
On February 11, 2015, the San Diego Water Board adopted Order No. R9-2015-0001, which amended Order No. R9-2013-0001, to extend coverage of the Regional MS4 Permit to the Orange County Copermittees and address a variety of other issues. During the proceedings for Order No. R9-2015-0001, the San Diego Water Board deferred consideration of two concepts proposed as permit amendments to establish 1) a definition of the term "prior lawful approval" for priority development projects, and 2) an alternative compliance pathway that would conditionally allow the Copermittees to be deemed in compliance with the receiving water limitations and related prohibitions of the Regional MS4 Permit. The San Diego Water Board scheduled a series of workshops to receive comments and information from the Copermittees and other key stakeholder groups concerning the prior lawful approval and alternative compliance pathway issues.
- June 30, 2015 Public Wrap-up Workshop
- Second Revised Draft Definition of Prior Lawful Approval for Priority Development Projects
- Second Revised Draft Alternative Compliance Pathway for Receiving Water Limitations
- Stakeholder Proposed Revisions to Definition of Prior Lawful Approval for Priority Development Projects
- Stakeholder Proposed Revisions to Alternative Compliance Pathway for Receiving Water Limitations
- Workshop Presentation
- Workshop Summary
- May 21, 2015 Public Workshop
- Copermittees Alternative Compliance Pathway Topics for Discussion
- Workshop Summaries
- April 28, 2015 Public Workshop
- Workshop Agenda Handouts
- Workshop Summaries
- Revised Notice of Public Workshops
ORDER NO. R9-2013-0001, AS AMENDED BY ORDER NO. R9-2015-0001
The California Regional Water Quality Control Board, San Diego Region (San Diego Water Board), adopted Order No. R9-2015-0001, an Order Amending Order No. R9-2013-0001, National Pollutant Discharge Elimination System (NPDES) Permit and Waste Discharge Requirements for Discharges from the Municipal Separate Storm Sewer Systems (MS4s) Draining the Watersheds Within the San Diego Region at its February 11, 2015 Board Meeting. Final Amended Order No. R9-2013-0001 and Fact Sheet identifies specific changes made to Order No. R9-2013-0001 and Attachments in blue underline and red-strikeout text. The conformed copy of Order No. R9-2013-0001 and Fact Sheet incorporates all adopted changes. .
Final Documents (posted 3/4/2015)
- Final Order No. R9-2015-0001
- Final Amended Order No. R9-2013-0001 (Order Only)
- Final Fact Sheet to Amended Order No. R9-2013-0001 (Fact Sheet Only)
- Conformed Copy Order No. R9-2013-0001 (Order Only)
- Conformed Copy Fact Sheet to Order No. R9-2013-0001 (Fact Sheet Only)
- Transmittal Letter to Order No. R9-2015-0001
PHASE I MUNICIPAL STORM WATER PERMITS
PHASE II MUNICIPAL STORM WATER PERMIT
CALTRANS STORM WATER PERMIT
CONSTRUCTION STORM WATER PERMIT
INDUSTRIAL STORM WATER PERMIT
- Industrial General Storm Water Permit
- Stormwater Industrial General Permit 2015 Workshops
- Summary of Significant Changes in the New Industrial General Permit 2014-0057-DWQ