Environmental Rules in Pomona, CA (2026)
5 verified environmental rules for Pomona, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Pomona enforces stormwater management under the LA County MS4 permit and NPDES requirements. Construction projects must implement BMPs. The city participates in the San Gabriel River watershed programs.
Pomona Stormwater Management Rules
Some RestrictionsErosion Control
Pomona requires erosion control plans for grading and construction projects. BMPs must be implemented during rainy season. Projects must comply with the LA County NPDES permit requirements.
Pomona Erosion Control Requirements
Some RestrictionsCoastal Development
Pomona is an inland city approximately 30 miles from the coast. Coastal development regulations and the California Coastal Commission do not apply.
Pomona Coastal Development Rules
Few RestrictionsCalifornia Coastal Commission — Coastal Zone Boundary Maps (Public Resources Code § 30103; Coastal Act of 1976)
ate the need for a formal boundary determination. Public Resources Code (PRC) Section 30103(a) specifically defines California's Coastal Zone as that land and water area of the State of California from the Oregon border to the border of the Republic of Mexico depicted on maps identified and set forth in Section 17 of that chapter of the Statutes of the 1975-76 Regular Session enacting PRC Divis...
Flood Zones
Portions of Pomona fall within FEMA-designated flood zones, primarily along drainage channels. The city participates in the National Flood Insurance Program (NFIP) and requires compliance with floodplain development standards.
Pomona Flood Zone & Floodplain Regulations
Some RestrictionsGrading & Drainage
Pomona requires grading permits for earthwork exceeding thresholds. Block wall and fencing plans must be consistent with the grading plan. Drainage must be directed away from neighboring properties.
Pomona Grading & Drainage Rules
Some RestrictionsLooking for Los Angeles County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Pomona city rules.
Environmental Rules in Los Angeles County →