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Permits & Regulations

Abandoning a Well in California

Legal Requirements, Process & Costs

SC

By SCWS Team

Published February 17, 2026 · 9 min read

When a well is no longer needed, California law requires proper destruction—not just covering it up. Improperly abandoned wells become contamination pathways that can affect entire aquifers.

When to Abandon a Well

  • Connecting to public water and no longer need well
  • Well is dry or produces inadequate water
  • Well is contaminated and treatment isn't practical
  • Replacing with a new well
  • Property development requires removal
  • County requires destruction of unpermitted well

Legal Requirements

  • Permit required: Obtain destruction permit from county environmental health
  • Licensed contractor: Only C-57 licensed well drillers can legally destroy wells
  • State standards: Must follow California Well Standards (Bulletin 74-90)
  • Completion report: Driller files report with state DWR

The Destruction Process

  1. Obtain permit: Application with well location and construction details
  2. Remove equipment: Pull pump, pipe, wiring from well
  3. Fill from bottom up: Pump neat cement grout from bottom, displacing water
  4. Seal annular space: Grout between casing and surrounding soil
  5. Cut casing: Remove casing to at least 5 feet below grade
  6. Fill to surface: Complete filling and cap
  7. County inspection: Verify proper destruction
  8. File completion report: Document destruction with state

Typical Costs

ItemCost Range
Destruction permit$200-400
Pump removal (if needed)$300-800
Well destruction (shallow)$800-1,500
Well destruction (deep)$1,500-3,000+
Total typical range$1,000-3,500

Why Proper Abandonment Matters

Risks of Improper Abandonment

  • Groundwater contamination: Surface contaminants can reach aquifers
  • Physical hazards: Open or poorly covered wells are dangerous
  • Legal liability: Property owner responsible for contamination
  • Property sale issues: Title search may reveal problems
  • Neighbor impact: Your abandoned well can contaminate their water

Frequently Asked Questions

Do I need a permit to abandon a well?

Yes, California requires a destruction permit from your county. Only licensed C-57 contractors can legally destroy wells.

How much does well abandonment cost?

Typically $1,000-3,000+ depending on well depth, diameter, and complexity.

What if I have an old abandoned well?

Contact your county environmental health department. You may need to properly destroy it, especially before property sales or construction.

Need to Abandon a Well?

We handle permits and proper destruction throughout San Diego and Riverside Counties.

Call (760) 463-0493

Well Destruction Service