The MPCA's Petroleum Remediation Program addresses petroleum contamination from leaking storage tanks by investigating spills and removing risks to human health and the environment. The responsible parties for petroleum leak sites must bear the cost of investigation and cleanup:
Minnesota has about 20,000 sites where petroleum has spilled or leaked into the environment. You can search for information on specific sites with the MPCA's data tools:
- Petroleum Remediation Program maps — Interactive map shows petroleum sites in relation to wellhead protection areas, drinking water supply management areas, and source water assessments.
- Leaking and registered tanks sites — Find locations and information about tank construction, installation, and installed safety measures.
- What's in my neighborhood — Shows site cleanup status and site ownership.
Submit an information request to obtain information not available through MPCA's data tools.
Petroleum site investigations
At sites where petroleum products have been spilled, the MPCA will conduct a site investigation. This includes:
- Risk evaluation — An investigation identifies the extent and magnitude of the contamination and potential threats to nearby structures, such as soils, water wells, habitable structures, utility lines, lakes, streams, and wetlands. If the risks to the environment and human health are low, no further investigation may be necessary.
- Developing a conceptual site model — The model shows where petroleum contamination is on the site, how it's behaving, and what is, or might be, affected by it. The site model provides justification for the site management decision.
- Making a site management decision — The MPCA decides how it will address the petroleum contamination on the site, by either taking corrective action, investigating further, or closing the site. The decision is based on the risks posed by the site, including:
- Effects on drinking water supplies and infrastructure
- Threats to bodies of water or groundwater
- Accumulation of petroleum vapors in structures or utilities
- Soil contamination
The MPCA will close a site when further investigation, monitoring, or correction action is not necessary to protect human health or the environment, even if some petroleum contamination remains. Site closure also means that MPCA's regulatory oversight of the petroleum spill or leak ends. Sites can be reopened if new information arises.
The Petroleum Tank Release Cleanup Fund (Petrofund), administered by the Minnesota Department of Commerce, reimburses eligible applicants up to 90% of reasonable and necessary costs they incur in responding to a petroleum spill or leak. The Petrofund has published guidelines on which costs qualify as reasonable, and the MPCA determines what work is necessary to protect human health and the environment. Eligible applicants include responsible parties (RPs) as well as non-RPs that hold legal or equitable title to the property where the release occurred. Besides determining what work is necessary, the MPCA plays a role in the reimbursement process by reviewing an applicant’s compliance with statutory requirement. Learn more:
- Petrofund (MN Dept. of Commerce)
Field work notifications
Field work notifications alert the MPCA that work is occurring on a site. The Petroleum Remediation Program requires field work notifications be submitted 48 hours prior to conducting field work at a site with an assigned MPCA Leak Site ID, regardless if the site investigation is open or closed. Field work notifications are submitted through MPCA’s e-Services. If the work schedule changes or is cancelled after notification, submit a field work modification with a revised schedule or a field work notification cancellation. If the change occurs within 24 hours of field work starting, you must also call the site project manager.
MPCA staff will randomly audit field work based on the notifications. They'll compare work reports and the field work notifications to ensure consultants and contractors are submitting the required notifications.
Reporting petroleum releases
- 2-01 Reporting of petroleum releases (c-prp2-01)
- 2-02 Light non-aqueous phase liquid management strategy (c-prp2-02)
- 2-03 Light non-aqueous phase liquid recovery report (c-prp2-03)
- 2-04 Recent releases at petroleum tank sites (c-prp2-04)
- 2-05 Release information worksheet (c-prp2-05)
- 2-08 Petroleum tank release follow-up notification (c-prp2-08)
See the Cleanup guidance page for more information about petroleum remediation.
- Petroleum cleanup at the Polish Palace in Sobieski MN (g-49-01)
- Petroleum cleanup at former Cobblestone Service Station, Highway 61 in Grand Marais (g-16-02)
- Former Ray’s Truck Stop (g-82-05)
|Petroleum Remediation Program manager||Sarah Larsen||651-757-2517|
|Petroleum release reporting||Jendro, Amy
|Petroleum brownfields||VanPatten, Stacey
|Petroleum remediation guidance documents||Frye, Stephen
|Field audits||Frye, Stephen
|Public works program coordinator||Knox, Wesley||651-757-2322|
|State fund finance/Remediation contract coordinator||Miller, Amy||651-757-2569|
|Land treatment or composting of petroleum-contaminated soil||Field, Lee||218-302-6609|