San Luis Rey River Watershed
Water Quality Improvement Plan Update
The Agencies in the San Luis Rey River Watershed Management Area, including the Cities of Oceanside and Vista and the County of San Diego, are considering an update to the Water Quality Improvement Plan (WQIP). This update would be in accordance with the optional compliance pathway described in Provision B.3.c of the San Diego Region’s Municipal Separate Storm Sewer Systems Permit. Provision B.3.c requires a more comprehensive planning and implementation process, but also provides numerous benefits including flexibility to define a San Luis Rey-specific approach, opportunities to pursue projects with multiple benefits to water quality and strengthen relationships with stakeholders.
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Public Call for Data
The process to update the WQIP is anticipated to be accomplished in three phases. The Agencies have completed Phase I of the process and are initiating Phase II with this call for data.
- Phase I focused on the selection of pollutants, conditions, and waterbodies to be included in further analysis, and development of a conceptual approach for compliance with Provision B.3.c.
- Phase II consists of the quantitative analyses and technical work to support compliance with Provision B.3.c including the development of control measures, water quality goals, schedules for achieving the goals, and specific monitoring and assessments plans.
- Phase III addresses the formal WQIP update process as required in Provision F of the Permit.
To support Phase II, the Agencies are requesting available, relevant, and appropriately collected and analyzed water quality and hydrology data in electronic format (Excel format is preferred). All submitted data will be reviewed. It is beneficial if the data has been collected under a quality assurance project plan or method (e.g., Surface Water Ambient Monitoring Program) and analyzed by an Environmental Laboratory Accreditation Program certified laboratory. To ensure the data can be integrated into the assessment, please include the following information:
- Location of sampling events or data collection (latitude/longitude coordinates);
- Dates and times of sample collection;
- Sampling event conditions (dry weather or storm event);
- Data for Quality Assurance/Quality Control samples; and
- Quality Assurance Project Plan(s), if applicable.
Technical or summary reports for large data sets are also appreciated. If submitting such reports, please include pertinent contact information (name, email, phone number) along with the data submittal.
For data to be considered for inclusion in this effort, data must be provided no later than 5:00 pm on August 12, 2023. The data and relevant reports can be submitted to ruth.delarosa@sdcounty.ca.gov.
For more information on the WQIP and implementation efforts, please refer to the 2021-22 WQIP Annual Report posted on Project Clean Water.
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