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Glossary of terms used in BRRTS on the Web

The following terms are used in the Bureau for Remediation and Redevelopment Tracking System (BRRTS) on the Web (BOTW).

Term Definition
Actions Specific events during the history of the cleanup of a contaminated site.
Activity Name The name of a site in BRRTS that generally refers to past or current causers of a response action. The location name may be different and reflect the most current property use, especially if it is a regulated facility.
Activity Status
  • Open:
    Spills, LUST, ERP, VPLE and Abandoned Container activities in need of cleanup or where cleanup is still underway. Not applicable to activity types of "General Property" and "No Action Required by RR Program."
  • Closed:
    Activities where investigation and cleanup of the contamination has been completed and the DNR has approved all cleanup actions. Not applicable to activity types of "General Property" and "No Action Required by RR Program."
  • Historic Spills:
    Spills where cleanup may have been completed prior to 1996 and no end date is shown. Spill Activities in this category show Historic status. Please contact the regional spill coordinator for more information.
Activity Type Activity type divides the data in BRRTS into separate modules, or groups of activities, including:
  • Abandoned Container (AC):
    An abandoned container with potentially hazardous contents has been inspected and recovered. No known discharge to the environment has occurred. If the container discharged a hazardous substance, a spills activity will be created at this location (See SPILLS below). Abandoned container activities in BRRTS have an activity number prefix of "08."
  • Legacy Sediment - Areas where historical discharges occurred to navigable waterways and the contamination is still causing adverse effects to the environment. These sites have no viable responsible party identified and are most often in designated Great Lakes Areas of Concern, but can be elsewhere. Legacy sediment activities in BRRTS have an activity number prefix of "11."
  • Leaking Underground Storage Tank (LUST):
    A LUST site has contaminated soil and/or groundwater with petroleum, which includes toxic and potentially cancer-causing substances. However, given time, petroleum contamination naturally breaks down in the environment (biodegradation). Some LUST sites may produce potentially explosive vapors. LUST activities in BRRTS have an activity number prefix of "03."
  • Environmental Repair Program (ERP):
    ERP sites are sites other than LUSTs that have contaminated soil and/or groundwater. Examples include industrial spills or releases that require long-term investigation, buried containers of hazardous substances or closed landfills that have caused contamination. The ERP module includes petroleum contamination from above-ground (but not from underground) storage tanks. ERP activities in BRRTS have an activity number prefix of "02."
  • Spills:
    A discharge of a hazardous substance that may adversely impact, or threaten to impact public health, welfare or the environment. Spills are usually cleaned up quickly. Spill activities in BRRTS have an activity number prefix of "04."
  • General Property Information (GP):
    This activity type consists of records of various milestones related to liability exemptions, liability clarifications, and cleanup agreements that have been approved by the DNR to clarify the legal status of the property. General Property activities in BRRTS have an activity number prefix of "07."
  • Voluntary Party Liability Exemption (VPLE):
    VPLE is an elective process in which a property owner conducts an environmental investigation and cleanup of an entire property and then receives limits on future liability for that contamination under Wis. Stat. § 292.15. An individual, business or unit of government can receive the liability exemption after a completed cleanup is approved. VPLE activities in BRRTS have an activity number prefix of "06."
  • No Action Required by RR Program (NAR):
    There was, or may have been, a discharge to the environment and, based on the known information, the DNR has determined that the responsible party does not need to undertake an investigation or cleanup in response to that discharge. NAR activities in BRRTS have an activity number prefix of "09."
  • Materials Management:
    Properties that received contaminated materials from a response action site. The materials will be managed on the property in compliance with Wis. Admin. Code ch. NR 718. Materials management activities in BRRTS have an activity number prefix of "15."
  • Facility wide:
    This activity type is the umbrella activity of a subset of activities at a facility that are part of the same negotiated agreement. Generally, these activity types are large sites with continuing operations that have smaller releases over time. There may also be some activities at the same location that should not be part of the Facility-wide Activity Type because they are not covered by the negotiated agreement. Facility-wide activities in BRRTS have an activity number prefix of "16."
Address The address of a contaminated site, not the address of the responsible party or property owner.
Affected Another Property A hazardous substance discharge originating from this property has impacted one or more other properties or rights-of-way (ROW). For more information, please review the documents below. Certain exemptions regarding the cleanup of impacted properties under Wis. Stat. § 292.13 may apply.
AST Petroleum Tank A release from an Above-ground Storage Tank (AST) containing petroleum product may have contributed to the release at this activity.
BRRTS Number The BRRTS identification number assigned to each activity in the database. The first two digits represent the activity type, the second two digits represent the county, and the last six digits are randomly assigned by the BRRTS system.
Continuing Obligations Due to remaining contamination, continuing obligations apply to one or more properties and detail certain actions for which property owners are legally responsible. Continuing obligations still apply after a property is sold. Prior to constructing or reconstructing a water supply well, the DNR must approve the well construction specifications.
County The Wisconsin county where the site or facility is located. County may appear on BOTW as a name or numeric value. The 72 counties of Wisconsin are numbered from 01 to 72, according to the alphabetical list.
DNR Project Manager The DNR's project manager (reviewer) for the site cleanup. The person who reviews the work of environmental consultants hired to do the site investigation and cleanup.
DNR Region A DNR-specific area assignment based on location in the state used to manage staff and workload in the program.
Dry Cleaner Activity has past use as a dry cleaner. It does not indicate that the activity is affected by solvents from dry cleaning operations that may have caused contamination.
End Date Date of case closure. Closure means the DNR determined that a satisfactory environmental cleanup was completed and sent a case closure approval letter to the responsible party. For No Action Required activities, the end date generally refers to the date that the DNR determined that no site investigation was required.
EPA ID Environmental Protection Agency (EPA) 12-digit, unique number used to track a site in the Superfund Enterprise Management System (SEMS). This includes Superfund National Priorities List (NPL), Superfund alternative, proposed for the NPL and deleted from the NPL.
EPA Superfund NPL Site Included in the U.S. EPA National Priorities List (NPL) of Superfund sites or may be a deleted Superfund site.
Facility ID/FID FID numbers are utilized by some DNR programs to identify a location and may be used to cross-reference with other DNR systems. Not all sites in BRRTS have been assigned Facility ID numbers.
Financial Activities where the DNR provided financial assistance through grants, loans or other reimbursements or financial aids. It does not include activities cleaned up using PECFA funds.
Jurisdiction The state, federal agency or DNR program with statutory authority over the management of a site listed in the BRRTS database.
Liens Properties listed as having liens in the database remain subject to the financial obligation until the amount is paid in full, or until the lien is otherwise satisfied, as allowed by law. The satisfaction date reflects the recording date of the satisfaction, date of notice of tax foreclosure or other applicable legal satisfaction mechanism.

The DNR has the authority to place a financial lien on a property under the following statutes:
  • s. 292.81, Wis. Stats., to recover costs incurred for cleanup related activities under ss. 292. 11 or 292. 31, Wis. Stats. These liens are superior to all other liens filed against the property, except in the case of residential properties.
  • s. 292.63, Wis. Stats., waiver of Petroleum Environmental Cleanup Fund Award (PECFA) deductible.
  • s. 292.64, Wis. Stats., to recover costs incurred for removal of abandoned underground storage tanks.
  • s. 292.65, Wis. Stats., waiver of Dry Cleaner Environmental Response Program fund (DERF) deductible.
Note: Other DNR programs may have encumbrances against liens that are not included in this database.
Location Name The location name may be a representation of the most current property use/owner (especially if it is a regulated facility). It often differs from the activity name.
Municipality The city, town or village where the site is located. Due to reporting differences, this may be based on several factors other than standard listings such as post office listing or locality specification.
Notice of Contamination A Notice of Contamination affidavit on a property, pursuant to Wis. Admin. Code § NR 728.11, provides notice to the public and any prospective purchaser of the existing contamination and the environmental liability associated with the property. If contamination is cleaned up to the requirements described in the first affidavit, a second or amended affidavit is filed with the Register of Deeds. The "satisfaction date" reflects the recording date of the second affidavit.
PECFA Claims The activity has submitted for reimbursement of eligible response action costs associated with petroleum site cleanup through the Petroleum Environmental Cleanup Fund Award (PECFA) program. The PECFA Program ended on June 30, 2020.
PECFA Funds Eligible The activity was eligible for the Petroleum Environmental Cleanup Fund Award (PECFA) - a program for reimbursement of eligible response action costs associated with petroleum site cleanup. The PECFA Program ended on June 30, 2020.
PECFA Number The Petroleum Environmental Cleanup Fund Award (PECFA) number used in the PECFA database for tracking reimbursement claims. The PECFA Program ended on June 30, 2020.
PFAS Per- and Polyfluoroalkyl Substances (PFAS) sampling indicated that PFAS compounds are present at actionable levels at the activity.
Related Activities Relationships between Activities (e.g., ERP Activities linked to one or more Facility Wide Activities). Activities existing at the same location are also related. Related activities may be linked when more than one location/facility exists.
Responsible Party The person (as defined in Wis. Admin. Code § NR 700.11(51)) responsible for cleaning up the contamination.
RP Contact/Agent The responsible party’s contact person or the agent for the responsible party.
RR Sites Maps (RRSM) This online mapping application allows users to view different layers of contamination data and associated redevelopment activities using a computer, tablet or smartphone. Additional information about RRSM is available on the RR Sites Map page.
Sediment An activity defined in BRRTS will be classified as a "Sediment site" on the date when the RR program receives sample results indicating a hazardous substance or environmental pollution has caused contamination of sediment, where "sediment" has the meaning specified in s. 292.01(17g), Wis. Stats.
Start Date This is usually the date that the DNR was notified of a discharge to the environment, or otherwise became aware of a discharge to the environment.
Substance Hazardous substance(s) present or previously present (presence confirmed via lab samples or known spilled product) at an activity. Substance(s) listed are based on those present during the site investigation/remediation phase of the site. Not all substance(s) impacting the site may be listed or still be present at the time of closure or continuing obligation(s).
UST Petroleum Tank A release from an Underground Storage Tank (UST) containing petroleum product was a source of the release at this activity.
WI DOT Site An activity where Wisconsin Department of Transportation (WisDOT) is the Responsible Party or has asked that the DNR review for WisDOT project completion.