Environmental Remediation Contractors in Mississippi
Find Mississippi contractors for UST site remediation, soil cleanup, groundwater treatment, contamination assessment, and tank closure work. Serving Jackson, Gulfport, Hattiesburg, Tupelo, and communities across the state.
What to Know About UST Remediation in Mississippi
Mississippi UST remediation contractors work cleanup files through MDEQ's corrective action program. The Mississippi Department of Environmental Quality administers the state's Underground Storage Tank Regulations, the rule that implements 40 CFR Part 280 for tank closures and release response. MDEQ accepts reports from any qualified environmental consultant, since Mississippi does not license remediation contractors as a standalone trade. Operators discovering a release have 24 hours to notify the MDEQ UST Section and 20 days to submit confirmation sampling, and most projects begin with a property assessment before invasive work starts. Convenience stores along I-55 and I-20, casino-adjacent fleet yards on the Gulf Coast, and shuttered service stations across the Pine Belt drive most of the active statewide caseload.
Demand for Mississippi soil cleanup work clusters along the state's commercial fuel corridors and the Gulf Coast. Jackson's metro area carries the heaviest volume, with legacy gas stations along Highway 80 and aging fleet facilities in Pearl driving steady caseload. Gulfport and Biloxi generate coastal contamination assessment work tied to casino development, port logistics, and post-Katrina rebuilds where pre-storm tanks remained in the ground. Hattiesburg and Tupelo produce mid-sized projects from former service stations and county fueling depots through the Pine Belt and northeast hill country. Secondary corridors include Meridian along I-20, where redevelopment surfaces forgotten heating-oil tanks, and Pascagoula sites near the shipyard, where shallow groundwater can spread petroleum plumes into nearby drainage.
Mississippi remediation costs span a wide range based on plume size and contamination type. Confirmation soil sampling runs $400 to $1,200 per location, while a Phase II contamination assessment on a Mississippi UST site typically costs $3,000 to $10,000. Excavation and disposal of petroleum-impacted soil falls between $10,000 and $60,000 for moderate releases. Groundwater treatment systems for larger Jackson-area or Gulf Coast plumes can run $40,000 to $150,000 over the multi-year cleanup window. See remediation methods explained for how investigation, treatment, and monitoring phases drive line-item totals across a typical UST cleanup. The Mississippi Groundwater Protection Trust Fund, administered by MDEQ, may reimburse eligible cleanup costs for registered, compliant facilities up to statutory caps.
The typical Mississippi corrective action file moves through release notification, site characterization, remedy selection, and MDEQ closure approval. Initial notification and 20-day confirmation sampling come first, followed by a corrective action plan negotiated with MDEQ staff in Jackson. Most petroleum-only sites reach closure in 12 to 24 months, though plumes that reach Yazoo Delta alluvial aquifers or shallow Gulf Coast water tables can extend beyond five years. Before signing a contract, ask Mississippi contractors for current MDEQ project history and written proof that field crews carry HAZWOPER training at the 40-hour level. Verify pollution liability coverage on Mississippi job sites and require a written scope that separates excavation, disposal, and reporting line items so you can compare bids accurately.
remediation Contractors in Mississippi
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Browse Mississippi Contractors →Frequently Asked Questions
Does Mississippi require a special license to perform UST remediation?
Mississippi does not license environmental remediation contractors as a separate trade. MDEQ requires corrective action plans and reports to be prepared by qualified environmental consultants who can defend their methods to the agency. In practice, that means consultants with professional geologist or professional engineer credentials, or equivalent field experience documented on prior Mississippi files. Property owners should ask any prospective contractor for MDEQ-approved closure reports the firm has authored on similar sites. Mississippi's open-consultant model puts more burden on the property owner to vet experience than the licensed-contractor structure used in many Northeast states.
How much does environmental remediation cost on a Mississippi UST site?
Costs in Mississippi vary widely based on contamination depth and plume size. A clean closure with minor soil sampling can run $5,000 to $15,000 total. Soil excavation projects typically fall in the $15,000 to $60,000 range, and groundwater treatment for sites in Jackson, Gulfport, or Hattiesburg metro corridors can exceed $100,000. Sites flagged as free product or off-site migration cases push final cost figures significantly higher. The Mississippi Groundwater Protection Trust Fund reimburses eligible costs above the statutory deductible for compliant tank owners, which lowers out-of-pocket exposure on registered facilities.
How long does a Mississippi UST cleanup project take from start to closure?
Most petroleum cleanup files in Mississippi close within 12 to 24 months. Initial release notification and confirmation sampling happen within the first 20 days after a leak is discovered. Site characterization and corrective action plan negotiation with MDEQ typically takes another 3 to 6 months. Active remedy implementation runs anywhere from a single excavation day to multi-year groundwater monitoring quarters at sites with deeper plumes. MDEQ's final No Further Action determination is usually issued within 90 days of closure report submittal once monitoring data confirms cleanup goals were met.
What does the Mississippi Groundwater Protection Trust Fund cover for remediation?
The Mississippi Groundwater Protection Trust Fund reimburses eligible site investigation, soil treatment, and groundwater monitoring costs at registered tanks. Coverage requires the tank owner to be in compliance with MDEQ registration, equipment, and release notification rules at the time the leak is discovered. Reimbursement applications go through MDEQ's UST Section, and the fund pays after work is completed and invoiced rather than upfront. Tank owners typically pay contractors directly and wait several months for reimbursement to land in their account. Non-compliant facilities are excluded entirely from the fund.
What happens during a typical Mississippi UST corrective action?
Work begins with release confirmation through soil and groundwater sampling at the tank pit. The contractor submits a site characterization report to MDEQ that documents the extent of contamination and proximity to receptors such as drinking water wells and surface water. MDEQ responds with corrective action requirements specifying cleanup goals tied to risk-based concentration targets. Most sites involve excavation of impacted soil, off-site disposal at a Mississippi-permitted landfill, and quarterly groundwater monitoring at the property until cleanup standards are met. The file ends with an MDEQ-issued closure letter accepting the site as remediated.
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Browse Mississippi Contractors →For Mississippi UST regulations, visit the MDEQ UST Program. Federal requirements are available from the EPA UST Program.