Grading & Drainage: Chino vs Fontana

Do I need a grading permit for a small backyard project?

If you're moving more than ~50 cubic yards of earth, disturbing more than 5,000 sq ft, or creating cuts/fills over a few feet in depth, yes. Smaller landscape regrading typically does not — but if drainage changes affect a neighbor, you can still face civil liability.

Can I drain my yard onto my neighbor's property?

No. Chino requires drainage plans to direct runoff to an approved outlet (street, storm drain, on-site detention). California Civil Code §831 and case law require 'reasonable use' of surface waters — you cannot concentrate or redirect runoff onto adjacent parcels.

Does Chino charge a drainage fee?

Yes. New development in master-planned areas pays drainage fees under the Drainage Master Plan financing program, which funds expansion of the city storm-drain system. Fees are calculated at building/grading permit issuance — contact Engineering at (909) 334-3253.

Who maintains the channel behind my house?

Master-planned channels like San Antonio Channel, Cypress Channel, and Chino Creek are typically San Bernardino County Flood Control District facilities. Smaller in-tract storm drains are city-maintained. Private drainage easements are the property owner's responsibility.

Do I need a permit to regrade my Fontana backyard?

Under 50 cubic yards of cut or fill on a non-hillside lot is typically exempt. Always check with Fontana Building and Safety if work is near property lines or natural drainage.

Can my Fontana neighbor force me to redirect drainage?

If grading sends additional runoff onto their parcel, they can pursue a nuisance claim under Civil Code 3479 and Fontana may require corrective grading.