Soil Remediation Services in Washington, Washington
When oil tank leaks contaminate soil, professional remediation is required to protect groundwater and comply with Washington environmental regulations. Our listed contractors in Washington specialize in petroleum contamination cleanup overseen by Washington State Department of Ecology.
About Soil Remediation in Washington
Soil remediation involves removing or treating soil contaminated by leaking oil tanks. The extent of remediation depends on contamination levels, soil type (Volcanic and glacial soil in your area), proximity to wells or water bodies, and Washington cleanup standards. Washington State Department of Ecology sets the requirements for remediation in Washington.
Moderate use especially in Seattle area older homes. Rainy climate accelerates tank deterioration.
When You Need Soil Remediation
- Contamination discovered during tank removal
- Failed soil tests showing petroleum levels above {state} limits
- Required for property sale with known contamination
- Protect drinking water wells and groundwater
- Eliminate ongoing environmental liability
- Required by {regulatoryBody} when contamination is reported
The Remediation Process in Washington
- 1Initial site assessment and soil sampling
- 2Laboratory analysis to determine contamination extent
- 3Develop remediation plan approved by Washington State Department of Ecology
- 4Excavate contaminated soil
- 5Transport contaminated soil to licensed treatment facility
- 6Collect confirmation soil samples
- 7Backfill with certified clean fill
- 8Submit closure report to Washington State Department of Ecology
- 9Obtain No Further Action letter
Washington Regulations
Regulatory Body: Washington State Department of Ecology
Permit Required: Yes
Permit Cost: $100-250
Notable Requirements: Ecology Heating Oil Tank Program. Pollution Liability Insurance Agency (PLIA) provides cleanup coverage.
Soil Remediation FAQs for Washington
How much does soil remediation cost in Washington?
Soil remediation costs in Washington typically range from $12,000-55,000. Costs depend on the volume of contaminated soil, depth of contamination, and proximity to groundwater. Minor contamination may cost $10,000-15,000, while extensive contamination can exceed $50,000.
How long does soil remediation take?
Simple remediation projects in Washington can be completed in 1-2 weeks. More extensive contamination requiring multiple rounds of excavation and testing may take 4-8 weeks or longer.
Is there financial assistance for remediation in Washington?
Washington may offer financial assistance through state petroleum cleanup funds. Contact Washington State Department of Ecology to learn about eligibility for cleanup cost reimbursement programs.
What contamination levels require remediation?
Washington has specific soil cleanup standards for petroleum contamination. Generally, total petroleum hydrocarbons (TPH) above 100-500 ppm require remediation, but standards vary based on land use and groundwater proximity.
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