On March 15, 2019, the San Diego Regional Water Quality Control Board accepted an updated version of the Water Quality Equivalency (WQE) Guidance Document for Region 9. This guidance document is available below. Additionally available resources are the Automated WQE Worksheet, ArcGIS shapefiles, and presentation slides. The WQE Worksheet can be used to assist in [...]
On December 17, 2015, the San Diego Regional Water Quality Control Board accepted the Water Quality Equivalency (WQE) Guidance Document for Region 9 available for download below. Also shown below is the associated presentation slides and meeting minutes. This document has been superseded by an updated version.
The Model BMP Design Manual for Permanent Site Design, Storm Water Treatment, and Hydromodification Management for the San Diego Region has been updated. Updates to the February 2016 Model Manual are intended to provide the Copermittees with a template to incorporate additional guidance, clarifications, and material to their existing jurisdiction specific manuals and include the [...]
This letter provides information to clarify the California Regional Water Quality Control Board, San Diego Region's (San Diego Water Board) expectation on the types of documentation needed to support a storm water infiltration infeasibility determination made by a Copermittee during the development planning project approval process. The San Diego Water Board would review such supporting [...]
Hydromodification Plan (HMP) Exemption Mapping The provided PDF map for HMP exempt areas is from the regional Watershed Management Area Analysis (WMAA).
Regional Potential Critical Coarse Sediment Yield Area Mapping The provided PDF map for for Potential Critical Coarse Sediment Yield Area (CCSYA) is from the regional Watershed Management Area Analysis (WMAA).
Comprehensive mapping data from Attachment C of the Watershed Management Area Analysis (WMAA). This is the combined geodatabase, MXD, and KMZ data files that includes all of the mapping data used in the WMAA. The CCSYA data and the HMP Exemption data is a subset of this data. Mapping data is provided to assist the [...]
Model BMP Manual Help Desk: Questions and Answers These are the official answers to questions submitted to the Help Desk. The Help Desk is intended to provide a platform to submit technical questions regarding the Model BMP Design Manual. Non-technical questions related to jurisdiction-specific requirements such as submittal requirements, approval process, project-specific questions and policy-related issues should [...]
BMP Maintenance Fact Sheets 20170112 - The maintenance fact sheets were prepared for the 15 BMPs identified below: Cistern Infiltration basin Bioretention system Permeable pavement as structural BMP Biofiltration with partial retention Biofiltration Vegetated swale Media filter Sand filter Dry extended detention basin Tree well Impervious area dispersion Green roof Permeable pavement as site design [...]
BMP Sizing User Guide PowerPoint presentation explaining how to use the BMP Sizing Spreadsheet. Components of spreadsheet Example project using hand calculations Example project using BMP Sizing Spreadsheet Project Info Data Entry BMP Data Entry & Results (Bioretention example) Orifice Data Entry & Results (Bioretention example) BMP Sizing Spreadsheet V3.1 Simplified method from Final HMP (Section [...]