Indio, CA Environmental Rules: Erosion Control (2026)
Key Facts
- Rainy season window
- Oct 15 - Apr 15
- Erosion plan deadline
- September 15 annually
- Slope planting trigger
- Slopes over 5 feet
- Enforcing office
- Director of Public Works
- Max penalty
- $500 fine, 6 months jail
Summary
Indio bars rainy-season grading without an approved erosion control system whenever the Director of Public Works finds erosion or silt could hit downstream property, drains, or streets.
No grading work shall be allowed between October 15 and the following April 15 on any site when the Director of Public Works determines that erosion, mudflow or sediment of silt discharge may adversely affect downstream properties, drainage courses, storm drains, streets, easements, or public or private facilities or improvements unless an approved erosion control system has been implemented on the site.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4796010; v13 updated 2026-02-04; through 02-04-2026).
Full Breakdown
Under Indio Municipal Code Chapter 162 (Grading), no grading work is allowed between October 15 and the following April 15 on any site where the Director of Public Works determines erosion, mudflow, or sediment discharge may adversely affect downstream properties, drainage courses, storm drains, streets, easements, or public or private facilities, unless an approved erosion control system is already in place. Where required, the erosion control plan must be submitted by September 15 and must name a 24-hour responsible contact, show desilting basins, sandbags, check dams, and slope planting, and address SWPPP/PM10/NPDES compliance. Slopes over five feet must be effectively planted, and removable devices must be staged whenever the five-day rain forecast tops 40%.
Violations & Fines
Violating any Chapter 162 grading provision, including the erosion control requirements, is a misdemeanor punishable by up to a $500 fine and/or six months in jail, with each day of continuing violation a separate offense.
Frequently Asked Questions
When does Indio require an erosion control plan?
What must an Indio erosion control plan include?
Sources & Official References
Other rules in Indio
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Erosion Control in Nearby Cities
How other cities in Riverside County handle erosion control.