How Chico Handles Environmental Rules: A Practical Guide
Chico maintains 133 local ordinances across all categories, and 4 of those deal specifically with environmental rules. Here is a breakdown of what the city actually requires, what is prohibited, and where Chico falls on the strict-to-permissive spectrum compared to other cities.
Stormwater Management
Chico prohibits any non-storm water discharge into the city's storm drain system unless specifically exempted, enforcing the ban under Chapter 15.50 of the Municipal Code to protect Butte County watercourses and comply with the city's NPDES permit.
Key details: Governing chapter: Municipal Code Chapter 15.50. Enforcing agency: Director of Public Works-Engineering. Prohibited: Non-storm water discharges to storm system. Exceptions: 17 listed categories in § 15.50.050. Enforcement: Abatement, fines, civil action (§15.50.130).
Discharge violations are a public nuisance; the Director may order abatement, impose administrative fines, bill cleanup costs to the owner, and refer persistent or major violations for civil or criminal prosecution.
Erosion Control
Before issuing any grading or building permit, Chico requires construction operators to submit an erosion and sediment control plan (ESCP) with site-specific best management practices to control storm water pollution from soil-disturbing work.
Key details: Governing section: Municipal Code § 15.50.075. Trigger: Any soil-disturbing construction project. State overlay: 1+ acre needs state general permit. Required document: Erosion and Sediment Control Plan. Timing: Filed before grading/building permit issues.
Grading or building permits are withheld until an approved ESCP is on file; violations of the underlying discharge prohibitions expose operators to abatement orders, fines, and civil enforcement.
Flood Elevation Requirements
Chico requires new and substantially improved buildings in special flood hazard areas to elevate the lowest floor at least one foot above the base flood elevation, with stricter rules in AO zones.
Key details: Freeboard required: 1 foot above base flood elevation. AO zones: 2 ft above grade, or depth-number rule. Certification required: Licensed architect, surveyor, or engineer. Violation classification: Infraction (§ 16R.37.025).
Building or grading without complying with Chapter 16R.37's elevation standards is an infraction under § 16R.37.025, and the city can take further lawful action to prevent or remedy the violation.
Flood Zones
Chico bars any development in a special flood hazard area that doesn't meet the city's adopted floodplain standards, and building permit applications there must include elevation and floodproofing data under a companion section.
Key details: Governing chapter: 16.37 Floodplain Standards. Applies to: special flood hazard areas. Extra permit data required: elevation and floodproofing info. Relief available: variance under § 16.37.040. Stop-work violation: misdemeanor, up to $1,000 fine.
Floodplain violations are infractions fined under Charter § 1505; defying a stop-work order is a misdemeanor: up to six months in jail and/or a $1,000 fine (§16.38.060), and violations are a public nuisance the city attorney may abate (§16.38.050).
Compared to other cities, Chico takes a harder line on flood zones. The enforcement and penalty structure reflects that.
The Bottom Line
Chico's environmental rules rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Chico is broadly strict or permissive.
All of the above reflects Chico's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.