The San Diego County Copermittees have developed a Model BMP Design Manual for the San Diego Region to conform to new development requirements of the 2013 Municipal Storm Water Permit (Order No. R9-2013-0001). The Model BMP Design Manual provides procedures for planning, selecting and designing onsite structural BMPs for new development and significant redevelopment projects in accordance with Provision E.3 of the 2013 Permit. Additionally, the Regional Manual provides a basis for the development of local BMP Design Manuals by each Stormwater Copermittee in the San Diego region.
Each Copermittee must update its local BMP Design Manual in accordance with the content of the regional Model on or before the February 16, 2016 effective date of the updated requirements of the 2013 Permit. The final Model BMP Design Manual and appendices are attached below, along with applicable supporting documentation and resources. If you have questions about the technical aspects of the manual, please use this Online Help Desk.
The Copermittees have updated the 2016 Model BMP Design Manual to provide more guidance. This is provided in the 2018 edition linked to below. Also, version 3.1 of the BMP Sizing Spreadsheet is available in the link below.
MAY 2018 MODEL BMP DESIGN MANUAL AND APPENDICES FOR SAN DIEGO REGION
FEBRUARY 2016 MODEL BMP DESIGN MANUAL AND APPENDICES FOR SAN DIEGO REGION
INFILTRATION INFEASIBILITY DOCUMENTATION GUIDELINES
BMP MAINTENANCE FACT SHEETS
POTENTIAL CRITICAL COARSE SEDIMENT YIELD AREAS MAP (From Regional WMAA)
HMP EXEMPTION MAPPING (From Regional WMAA)
SUMMARY ON MANNING’S “N” VALUES FOR OVERLAND FLOW USING EPA SWMM V.5
WHITE PAPER ON MANNING”S “N” VALUES FOR OVERLAND FLOW USING EPA SWMM V.5
WHITE PAPER ON SAN DIEGO BIORETENTION MEDIA SURVEY
SAN DIEGO HYDROLOGY MODEL 3.1 (Note: Do not load projects from SDHM 3.0 into SDHM 3.1 because different HSPF parameter values are used.)
RAIN GAUGE DATA
BMP Sizing Spreadsheet V3.1
BMP Sizing Spreadsheet User Guide
The user’s guide provides instructions on how to use the BMP Sizing Spreadsheet. Please note that the user’s guide was prepared for the previous version of the BMP Sizing Spreadsheet (V1.04). The guide contains much useful information, especially for those completing the spreadsheet for the first time, relevant to properly completing the current BMP Sizing Spreadsheet.
San Diego BMP Sizing Calculator Methodology
For additional information contact the jurisdiction your project is located in.
- This BMP Sizing Spreadsheet is a tool offered to assist the public with permit compliance, but its use is not intended to guarantee or warrant compliance, which is the independent responsibility of the user. In no event will the San Diego area municipal Copermittees be liable for any incidental, special or consequential damages of any kind (including, but not limited to, loss of information or other monetary loss) arising in any way in connection with the use or inability to use the BMP Sizing Calculator accessed from this website.
For technical questions about the Model BMP Design Manual, please use the Online Help Desk. For jurisdiction-specific information, please visit the Development Standards page.