Riverside County
Water Quality Management Plan — Santa Ana Region of Riverside County
CountyCaliforniahighNoCitations verified
Fields not found in document: design_criteria.design_storm_return_periods_years, design_criteria.required_hydrologic_hydraulic_software
Other manuals in California: Alameda Countywide Clean Water Program (ACCWP) / City of Fremont, California, California Department of Transportation (Caltrans), California Department of Transportation (Caltrans), City of Anaheim, City of Bakersfield, City of Chula Vista, City of Long Beach, City of Oakland, City of Sacramento, City of San Diego, City of San Francisco, City of San Jose / Santa Clara Valley (SCVURPPP), City of Santa Barbara, City of Santa Rosa, City of Stockton / San Joaquin County, County of Los Angeles, County of Orange, Fresno Metropolitan Flood Control District, San Bernardino County, Tahoe Regional Planning Agency (Lake Tahoe Region)
Document Metadata
Jurisdiction level
County
“County of Riverside”
Co-Permittees
State
California
“Santa Ana Regional Water Quality Control Board”
Cover
Version / edition
Approved October 22, 2012
“Date approved by the Santa Ana Regional Water Quality Control Board: October 22, 2012”
Cover
Adoption / effective date
2012-10-22
“October 22, 2012”
Cover
Last revised date
2012-10-22
“October 22, 2012”
Cover
Relationship to state manual
independent
“Order No. R8-2010-0033 MS4 WQMP”
Introduction
Design Criteria
Design storm return periods (years)
Not found in document
No evidence cited
Water quality volume method
Priority Development Projects must implement LID BMPs to infiltrate, evapotranspire, harvest/use, or biotreat runoff. Design Capture Volume (DCV) is based approximately on the 85th percentile 24-hour storm event (isohyetal map Exhibit A). Remaining DCV may be addressed with treatment-control BMPs; hydromodification criteria apply in the Santa Ana Region.
“Design Capture Volume (DCV) / 85th percentile 24-hour storm event”
LID / Exhibit A
Peak flow calculation method(s)
Design Capture Volume (85th percentile 24-hour), LID BMP sizing (area- and volume-based), Hydromodification criteria for Santa Ana Region
“HYDROMODIFICATION CRITERIA FOR THE SANTA ANA REGION”
Section 3.6 / Figure 3-7
Hydrologic/hydraulic software
Not found in document
No evidence cited
Approved BMP categories
LID BMPs (infiltration, biotreatment, harvest/use), Self-retaining areas / site design BMPs, Treatment control BMPs for remaining DCV, Hydromodification control BMPs
“Implement LID BMPs / LID BMP Design Handbook”
Section 3.4 / Exhibit C