San Luis Rey Water Quality Improvement Plan

San Luis Rey Water Quality Improvement Plan 2017-07-17T16:04:00+00:00

San Luis Rey Water Quality Improvement Plan


Agencies involved in the development of the San Luis Rey Water Quality Improvement Plan (WQIP) include the Cities of Oceanside and Vista, the County of San Diego, and the California Department of Transportation. The WQIP is a requirement of updated stormwater regulations adopted by the Regional Water Quality Control Board (Regional Board) according to Order No. R9-2013-0001, as amended by Order Nos. R9 2015-0001 and R9-2015-0100. The ultimate goal of the WQIP is to protect, preserve, enhance, and restore water quality of receiving water bodies. These improvements in water quality will be accomplished through an adaptive planning and management process that identifies the highest priority water quality conditions within the watershed and implements strategies to address them.

The San Luis Rey Water Quality Improvement Plan was originally submitted to the Regional Board on June 26, 2015, as required by the Municipal Permit. The WQIP was subsequently revised and resubmitted in order to incorporate comments received from the public and the Regional Board. Following further comments, the Regional Board issued an acceptance letter for the San Luis Rey WQIP on February 12, 2016. The resulting WQIP, appendices, and acceptance letter are available at the links below:

Final San Luis Rey Water Quality Improvement Plan (PDF)

Final San Luis Rey Water Quality Improvement Plan Appendices (PDF)

Regional Board Acceptance Letter for the San Luis Rey Water Quality Improvement Plan (PDF)

For Copermittee contact information, please check out the San Luis Rey Stakeholders page.

Current Events

As part of the adaptive management process and in order to discuss watershed-wide goals, strategies, and issues, Copermittees hold monthly workgroup meetings that are also open to the public. These meetings, along with their agendas, meeting summaries, and meeting materials, are linked to below. For additional current events pertaining to the San Luis Rey WMA, please check out our calendar here.

SLR WMA WQIP Meeting Materials

Meetings and Agendas Archive


Water Quality Data

Monitoring data used in the development of the WQIP can be found on the California Environmental Data Exchange Network (CEDEN) website,

Geographic Information System (GIS) Data

The majority of GIS data used to develop plans and reports can be found on the San Diego Geographic Information Source website at

For jurisdiction-specific data, please follow the links below or contact the appropriate stormwater Copermittee for additional resources.

City of Oceanside GIS data 

City of Vista GIS data 

County of San Diego GIS data 

San Luis Rey Watershed Management Area Analysis (WMAA) Data

Typically, the WMAA is presented as an appendix to each watershed’s WQIP; however, there is also a regional component to the WMAA. For the Regional WMAA, please check out our regional efforts.

San Luis Rey WMAA Draft Report (October 3, 2014) (PDF)

San Luis Rey WMAA Attachments (PDF)

San Luis Rey WMAA Attachment Figures

Other Data

All data that were used to develop the WQIP but do not fit into one of the above categories can be found in the document archive.