Ontario requires active erosion control on all graded sites year-round under OMC Chapter 5 Article VI, with enhanced Best Management Practices from October 1 through April 30 during the rainy season.
Ontario enforces year-round erosion and sediment control under Ontario Municipal Code Chapter 5 Article VI and the California Construction General Permit. Any project disturbing soil must deploy Best Management Practices (BMPs) including silt fences, fiber rolls, gravel bags, stabilized construction entrances, and inlet protection on all downstream storm drains. From October 1 through April 30 (defined wet season per the Santa Ana Regional Water Board) enhanced BMPs are mandatory and exposed slopes must be hydroseeded, covered with straw mulch, or tarped. Tracked-out sediment on public streets must be cleaned by shovel or street sweeper by the end of each workday; washing dirt into a storm drain is a direct violation. Projects over 1 acre must have a Qualified SWPPP Practitioner (QSP) inspect BMPs weekly and before predicted storm events. Noncompliance can trigger stop-work orders and administrative citations up to 10,000 dollars per day. Grading permits issued by Ontario Building and Safety include specific BMP conditions.
Contact your local code enforcement office for specific penalty information.
Ontario, CA
Outdoor music is regulated under OMC Title 5 Chapter 29 and the special-event permit process. Venues and events with amplified sound need a city permit; resi...
Ontario, CA
Aircraft noise from Ontario International Airport (ONT) is regulated by the FAA, not the city. ONT runs an FAA Part 150 noise compatibility program; federal ...
Ontario, CA
Ontario requires a building permit for masonry walls and any fence over 7 feet under the California Building Code. Retaining walls over 4 feet also require p...
Ontario, CA
Ontario fence requirements include zoning-based heights, setbacks, sight triangles, buffer walls on industrial edges, and CBC structural standards. Pool, ret...
Ontario, CA
Ontario limits residential fence heights under the Development Code. Typical maximums are 6 feet rear/side, 3 feet front, and 42 inches in sight-distance tri...
Ontario, CA
Ontario requires dogs to be leashed off-property under OMC Title 6. Maximum leash length is 6 feet, with owner control required in all public spaces except d...
Side-by-side rule comparisons with other cities in San Bernardino County.
See how other cities in San Bernardino County handle erosion control.
See how Ontario's erosion control rules stack up against other locations.
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