Environmental Rules in Orange, CA (2026)
5 verified environmental rules for Orange, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Orange bans illicit connections to its storm drain system and any discharge of a pollutant into it, under Municipal Code Section 7.01.040 of the Water Quality and Stormwater Discharges chapter. The City acts as a co-permittee under the regional NPDES permit, and a knowing or negligent violation is a misdemeanor punishable by a fine of up to $1,000 or six months in jail, or both.
Orange Stormwater Discharge Prohibition Rules
Significant RestrictionsOrange, CA, Municipal Code § 7.01.040 (Prohibition on Illicit Connections and Prohibited Discharges)
§ 7.01.040. Prohibition on Illicit Connections and Prohibited Discharges. A. No person shall: 1. Construct, maintain, operate and/or utilize any illicit connection; 2. Cause, allow or facilitate any prohibited discharge; 3. Act, cause, permit or suffer any agent, employee, or independent contractor, to construct, maintain, operate or utilize any illicit connection, or cause, allow or facilitate...
Erosion Control
Orange requires grading and building permit applicants to control erosion and sediment before the City signs off. The Public Works Director reviews plans and imposes stormwater conditions, and every property owner must follow best management practices to keep pollutants and sediment out of the storm drain system during construction.
Orange Erosion and Sediment Control Rules
Some RestrictionsOrange, CA, Municipal Code §§ 7.01.050 (Controls for Water Quality Management), 7.01.070 (BMP Requirements)
A. New Development and Significant Redevelopment. 1. All new development and significant redevelopment shall be undertaken to ensure that pollutant discharges from development are reduced to the maximum extent practicable... 2. Prior to the issuance by the City of a grading permit, building permit or nonresidential plumbing permit for any new development or significant redevelopment, the Public...
Coastal Development
The City of Orange is an inland community located approximately 10 miles from the Pacific coast and is not within the California Coastal Zone. Coastal Commission permits are not required for development in Orange.
Orange Coastal Development Regulations
Some RestrictionsCal. Pub. Res. Code § 30103 (Coastal Act of 1976)
Information on Digital Coastal Zone Boundaries: The original 1977 Coastal Zone Boundary maps were mylar (drafting film) copies of 161 USGS 7.5 minute topographic quadrangles with an inked boundary added. This digital version of the boundary was developed to provide a georeferenced, attributed (to explain the basis of the mapped Coastal Zone), cadastral (parcel-based) depiction of the adopted Co...
Flood Zones
Portions of the City of Orange are within FEMA-designated Special Flood Hazard Areas, particularly along Santiago Creek. Development in flood zones requires compliance with FEMA floodplain management regulations and flood insurance.
Orange FEMA Flood Zone Regulations
Some RestrictionsFEMA Flood Map Service Center, National Flood Insurance Program (NFIP)
FEMA Flood Map Service Center: Welcome! Looking for a Flood Map? Enter an address, a place, or longitude/latitude coordinates: Looking for more than just a current flood map? Visit Search All Products to access the full range of flood risk products for your community. About Flood Map Service Center The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard informatio...
Flood Elevation Requirements
Orange's Flood Damage Prevention chapter requires new, substantially improved or substantially damaged structures, including manufactured homes, to elevate the lowest floor to the base flood elevation shown on the effective Flood Insurance Rate Map plus one foot of freeboard, with stricter elevation in AO and A Zones.
Orange Base Flood Elevation Freeboard Rule
Some RestrictionsOrange, CA, Municipal Code § 15.60.160(C) (Standards of Construction, Elevation and Floodproofing)
§ 15.60.160. Standards of Construction. C. Elevation and Floodproofing. All new, substantially improved, and substantially damaged structures, including manufactured homes, need to be elevated at a minimum to the base flood elevation, as shown on the effective Flood Insurance Rate Map, plus one-foot freeboard. 1. Residential construction, new construction or substantial improvement, shall have ...
Looking for Orange County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Orange city rules.
Environmental Rules in Orange County →