Yuba County, CA Environmental Rules: Erosion Control (2026)

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, and except for the specific exemptions listed in Subsection 11.23.020(b), Grading Permit; Exemptions, no person shall do or permit to be done any grading on any site in the unincorporated areas of Yuba County without a valid grading permit obtained from the Community Development and Services Agency. A permit shall also be required for the following:a.Retaining walls which are over four feet in height, as measured from bottom of footing to top of the wall;b.Any retaining walls that are subject to surcharge;c.Private vehicular bridges;d.Fill operations exceeding four feet when filling an abandoned swimming pool unless a demolition permit for same is obtained from the Building Department.(3)A grading permit is required for any grading and/or other construction activity with ground disturbance of more than one acre, or any grading and/or construction activity smaller than one acre but part of a greater plan involving over one acre.