Environmental Remediation Contractors in Colorado
Find environmental remediation contractors in Colorado for soil cleanup, groundwater treatment, brownfield redevelopment, and corrective action. Serving Denver, Colorado Springs, Fort Collins, Boulder, Pueblo, and communities along the Front Range and Western Slope.
What to Know About UST Remediation in Colorado
Colorado environmental remediation contractors work under Division of Oil and Public Safety oversight, not the EPA. Front Range projects make up the largest share of active corrective action sites. The Division approves corrective action plans, reviews soil and groundwater data, and issues No Further Action determinations for leaking petroleum sites. Confirmed releases must be reported within 24 hours and followed by a 20-day report under 7 CCR 1101-14. Colorado property buyers usually trigger cleanup work after a Phase I ESA flags former filling stations, county shop yards, or rural diesel storage. Remediation firms must register with the Division before submitting closure paperwork, and eligibility for the Petroleum Storage Tank Fund hinges on compliance status at the time of release.
Demand for Colorado environmental remediation contractors clusters along the Front Range corridor running from Fort Collins through Denver to Colorado Springs and Pueblo. Aging filling stations in Denver neighborhoods like Globeville and Elyria-Swansea drive a steady flow of corrective action work, while the I-70 corridor adds rural truck stop and county yard sites. Pueblo's industrial legacy from steel manufacturing often produces commingled petroleum and metals impacts, which changes lab analysis requirements and disposal pathways. The Western Slope around Grand Junction and Montrose brings ranch-scale diesel storage, oil and gas service yards, and short construction seasons that compress cleanup schedules. Colorado's semi-arid climate matters too, because petroleum hydrocarbons can persist in unsaturated soil longer than in wetter states.
Remediation costs in Colorado typically run $10,000 to $50,000 for limited petroleum impacts and $50,000 to $250,000 or more when groundwater treatment is required. Soil excavation and offsite disposal at a Subtitle D landfill near Denver averages $80 to $150 per ton. Lab analysis for BTEX plus MTBE adds $300 to $800 per sampling round. Contamination depth, proximity to the South Platte or Arkansas River alluvium, and tight access in dense Denver and Boulder neighborhoods drive most of the variance. The Colorado Petroleum Storage Tank Remediation Fund may reimburse eligible cleanup costs for compliant operators when releases are reported under the 24-hour and 20-day rules in 7 CCR 1101-14. See cleanup investigation and treatment for a phase-by-phase cost breakdown across a corrective action file.
The typical Colorado cleanup process starts with a release confirmation report, then a site investigation that defines the contaminant plume horizontally and vertically. Contractors submit a corrective action plan to the Division of Oil and Public Safety, run the approved remedy, and file a closure report backed by confirmation samples. Field workers should carry current 40-hour HAZWOPER training under 29 CFR 1910.120, since Colorado adopts the federal OSHA standard for petroleum cleanup. Front Range gas station closures often wrap in 6 to 12 months, but deeper plumes in fractured bedrock near Colorado Springs run 2 to 4 years before NFA. Before signing, request the firm's current Division registration, three recent NFA letters from Colorado sites, lab accreditations, and pollution legal liability coverage naming the property owner as additional insured.
remediation Contractors in Colorado
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Browse Colorado Contractors →Frequently Asked Questions
Do contractors need a license to perform UST remediation in Colorado?
Colorado does not issue a single state remediation contractor license. Firms working at petroleum storage tank sites must register with the Division of Oil and Public Safety before submitting closure documentation. Field crews need 40-hour HAZWOPER certification under 29 CFR 1910.120, and project oversight typically requires a licensed Professional Engineer or Professional Geologist for corrective action plan signoff. The Colorado UST operator program also requires Class A, B, or C credentials for staff at the active facility. Look for CDPHE-certified labs on the analytical side, since closure data must come from accredited laboratories.
How much does environmental remediation cost in Colorado?
A limited petroleum cleanup at a former Front Range gas station typically runs $10,000 to $50,000 when soil-only excavation handles the impact. Once groundwater is involved or a treatment system is needed, total project cost climbs to $50,000 to $250,000 or higher. Soil disposal at a Subtitle D landfill near Denver averages $80 to $150 per ton, and analytical work for BTEX and MTBE runs $300 to $800 per sampling event. Mountain projects west of I-25 often cost more because hauling, lab logistics, and short construction windows add overhead. Eligible operators may recover a portion of these costs through the Colorado Petroleum Storage Tank Remediation Fund.
How long does a UST cleanup take in Colorado?
Site investigation alone usually takes 3 to 6 months, including drilling, sampling, and lab turnaround. A straightforward Front Range cleanup with shallow soil impacts can move to closure within 6 to 12 months after the corrective action plan is approved. Sites with groundwater impacts in fractured Front Range bedrock or alluvial aquifers near the South Platte often run 2 to 4 years before reaching NFA status. After the closure report goes in, the Division of Oil and Public Safety typically takes 3 to 9 months to issue the No Further Action letter. Quarterly groundwater monitoring, when required, can extend the schedule by another 1 to 2 years.
What is the Colorado Petroleum Storage Tank Remediation Fund?
The Colorado Petroleum Storage Tank Remediation Fund is a state-administered reimbursement program that may cover eligible corrective action costs above a deductible for owners and operators of regulated petroleum tanks. Coverage depends on compliance status at the time of release and on timely reporting under the 24-hour and 20-day rules. Reimbursement is processed by the Petroleum Storage Tank Committee, and applications usually require itemized invoices, lab reports, and Division-approved milestones. Reimbursement timelines often run 12 to 24 months, so most owners pay contractors first and recover later. Operators who let their compliance lapse, even briefly, can lose access to the fund for that release.
What does a Colorado UST remediation project actually involve?
A project starts when a confirmed release is reported to the Division of Oil and Public Safety, often after a leak detection alarm or sampling tied to a property transfer. The contractor performs a site characterization to map the plume in soil and, if present, in groundwater. The firm then prepares a corrective action plan that proposes a remedy such as excavation, in situ chemical oxidation, soil vapor extraction, or monitored natural attenuation. After the Division approves the plan, the contractor implements the remedy, collects confirmation samples, and submits a closure report. The state then reviews the data and, if criteria under 7 CCR 1101-14 are met, issues a No Further Action letter.
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Browse Colorado Contractors →For Colorado UST regulations, visit the CDLE Petroleum Storage Tanks. Federal requirements are available from the EPA UST Program.