City of Anaheim

Drainage Manual for Public and Private Drainage Facilities — Division IV Private Storm Drainage Facilities Requirements

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Anaheim Division IV only (10 pages). Full city criteria also in Div I–III adopting OC manuals with revisions — already have orange-county-ca LDM. Pipeline excerpt repair removed 2 unlocated citation(s).

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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 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, Riverside County, San Bernardino County, Tahoe Regional Planning Agency (Lake Tahoe Region)

Document Metadata

Jurisdiction level

City

“City of Anaheim”
Title

State

California

“Santa Ana River”
Section 1

Version / edition

Not found in document

No evidence cited

Adoption / effective date

Not found in document

No evidence cited

Last revised date

Not found in document

No evidence cited

Relationship to state manual

independent

“PRIVATE STORM DRAINAGE FACILITIES REQUIREMENTS”
Division IV

Design Criteria

Design storm return periods (years)

10-year, 25-year, 100-year

“minimum of the 10-year storm / capture Q25 / 100-year protection of habitable areas”
Section 1 Design Criteria

Water quality volume method

City adopts Orange County Hydrology Manual and Local Drainage Manual with Anaheim revisions (other divisions). This Division IV covers private facility design criteria; sump inlets designed for Q25 with 100-year habitable-area protection if grate fully clogs.

“special drainage design requirements for private storm drains”
Section 1

Peak flow calculation method(s)

Private drains tributary to Santa Ana River (not connected to public facilities): minimum 10-year recurrence interval, Onsite sump grate inlets designed to capture Q25, 100-year protection of habitable areas with emergency overflow / freeboard if grate clogs 100%

“Onsite inlets in sump condition shall be designed to capture Q25”
Section 1.D

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Private storm drains, Grate inlets / sump systems, Emergency overflow conveyance

“Grate inlets are allowed on private property”
Section 1.D