Well Abandonment Statistics 2026: 35 Facts & Data
Well Abandonment Overview
Source: NGWA, EPA, State estimates
Abandonment Statistics
| Metric | Value |
|---|---|
| Improperly abandoned wells (US) | 2-3 million |
| Wells properly sealed annually | ~85,000 |
| States with destruction requirements | 48 |
| Average cost (shallow well) | $800-2,000 |
| Average cost (deep well) | $2,000-8,000 |
| Average age of abandoned wells | 50+ years |
Abandonment Costs
| Well Type | Cost Range |
|---|---|
| Shallow (<100 ft) | $800-1,500 |
| Medium (100-300 ft) | $1,200-3,000 |
| Deep (300+ ft) | $2,500-8,000 |
| Large diameter (dug wells) | $3,000-10,000 |
| Flowing artesian | $5,000-15,000+ |
Cost Factors
- Well depth and diameter
- Access conditions
- Grout/seal material requirements
- Casing removal (if required)
- Permit and inspection fees
Environmental Risks
Risks from Improperly Abandoned Wells
- Groundwater contamination: Direct pathway for pollutants
- Cross-contamination: Mixing of aquifer zones
- Physical hazards: Drowning, falls, injury
- Legal liability: Property owner responsibility
- Property value: Disclosure and remediation requirements
Well Abandonment & Destruction in Statistics
Unused or abandoned wells in Statistics are more than an eyesore — they're a direct pathway for surface contamination to reach groundwater. California law requires proper destruction of wells that are no longer in use, and San Diego County enforces this through the permitting process.
Why Proper Well Abandonment Matters
- Groundwater protection — an open or poorly sealed well allows pesticides, fertilizers, sewage, and surface runoff to contaminate the aquifer
- Safety hazard — open wells are fall risks for children, pets, and wildlife
- Legal liability — property owners are responsible for wells on their property, even if they didn't drill them
- Property sale requirements — real estate transactions in Statistics often require disclosure and proper sealing of abandoned wells
The Abandonment Process
- Permit application — we obtain the required San Diego County well destruction permit
- Well assessment — inspect the well's depth, construction, and current condition
- Equipment removal — pull any pump, pipe, and wiring still in the well
- Sealing — fill the well with cement grout or bentonite from bottom to surface per California standards
- Surface completion — cut the casing below grade and cap with concrete
- County filing — submit the well destruction report to San Diego County and the state DWR
Cost of Well Abandonment in Statistics
Typical well destruction costs range from $1,500-$5,000 depending on well depth, diameter, and accessibility. Deeper wells in Statistics's decomposed granite and fractured crystalline rock formations require more grout material and time. We include the permit fee and county filing in our quotes.
Frequently Asked Questions
How many abandoned wells exist?
An estimated 2-3 million improperly abandoned water wells exist in the US.
How much does abandonment cost?
Costs range from $800-3,000 for domestic wells to $10,000+ for large/deep wells.
Is abandonment required?
Yes, 48 states require proper well destruction when wells are no longer used.
Need Well Destruction Services?
Southern California Well Service provides proper well abandonment and destruction services.
Call: (760) 440-8520
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