Environmental Rules in Yuba County, CA (2026)
5 rules for unincorporated Yuba County, California.
Verified from official government sources
Stormwater Management
Yuba County's Stormwater Quality Ordinance makes it unlawful to discharge anything but clean rainwater into the county's storm drains, with fines up to $2,000 and up to six months in jail per violation.
Yuba County Bans Illicit Stormwater Discharges
Some RestrictionsYuba County Code § 7.50.080
Except as provided in Section 7.50.090 of this Chapter, it is unlawful for any person to make or cause to be made any illicit discharge into the storm drain system. Notwithstanding the exemptions provided by Section 7.50.090, if the Enforcement Agency determines any otherwise exempt discharge causes or significantly contributes to violations of any plan standard, or conveys significant quantiti...
Erosion Control
Unincorporated Yuba County requires a grading permit for any disturbance over one acre, or 2,500-plus square feet of new impervious surface in MS4 areas.
Yuba County Grading Permit Thresholds
Some RestrictionsYuba County Code § 11.23.020(a)(1),(3)
Any grading performed in the County of Yuba—Phase II Municipal Separate Sewer System (MS4) permit boundaries that creates or replaces 2,500 square feet or more of impervious surface shall require either a grading permit or a building permit. For these activities, the requirements within Code Section 7.50 shall apply.(2)For all projects excluding those covered in Subsection 11.23.020(a)(1) above...
Flood Zones
Any construction, fill, grading, or manufactured-home placement within a mapped special flood hazard area of unincorporated Yuba County needs a development permit under Yuba County Code Chapter 10.30, Floodplain Management. The Community Development and Services Agency Director, acting as Floodplain Administrator, reviews plans for lowest-floor elevation, floodproofing, and floodway impact before any building permit can issue.
Yuba County Floodplain Development Permit Rule
Some RestrictionsYuba County Code § 10.30.070(c), (d)
(c)Development permit. A development permit shall be obtained before any construction or other development, including manufactured homes, within any area of special flood hazard established in Section 10.30.060. Application for a development permit shall be made on forms furnished by the County of Yuba. The applicant shall provide the following minimum information:(1)Plans in duplicate, drawn t...
Defensible Space
New buildings in Yuba County's State Responsibility Areas must keep a 30-foot firebreak setback from property lines under the county's fuel modification standards.
Yuba County Wildfire Defensible Space
Some RestrictionsYuba County Code § 11.22.080(1)(a)
All new buildings shall be constructed with a minimum 30-foot setback from all property lines and/or the road right-of-way to serve as a fire break. Required utility structures such as but not limited to water tanks, propane tanks, and well/pump houses are not considered buildings for the purposes of this Section.b.The side and rear yard building setback requirement may be reduced to the setbac...
Flood Elevation Requirements
New and substantially improved homes in unincorporated Yuba County's mapped flood zones must have their lowest floor built at least one foot above the base flood elevation under Chapter 10.30.
Yuba County Flood Elevation Freeboard Rule
Some RestrictionsYuba County Code § 10.30.080(a)(3)a
All new construction or substantial improvements of residential structures shall have the lowest floor, including basement: 1.In AE, AH, A1-30 Zones, elevated one foot above the base flood elevation. 2.In an AO zone, elevated above the highest adjacent grade to a height one foot above the depth number specified in feet on the FIRM, or elevated at least three feet above the highest adjacent grad...
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