Public Input Opportunity – Publication: Local Government Environmental Liability Exemptions and Responsibilities in Wisconsin (RR-055)

The Remediation and Redevelopment (RR) Program is now seeking input on the publication Local Government Environmental Liability Exemptions and Responsibilities in Wisconsin (RR-055).

The purpose of this guidance is to provide basic information about Wisconsin’s local government unit environmental liability exemption (LGU exemption). The method of property acquisition used by an LGU determines if the exemption is acquired or applicable. DNR brownfields staff can help LGUs understand the exemption before taking title to a contaminated property and provide liability clarification letters.

The document can be found at the RR Program’s Public Notices & Guidance webpage under the “Program Guidance” tab. Comments may be submitted through June 7, 2023, to Michael Prager at or

Updates To The RR Sites Map And Polygon Layers

RR Sites Map (RRSM) is undergoing updates that will include the removal of some of the polygon area layers. Polygon layers show site or property boundaries on RRSM and may include outdated or inconsistent spatial information.

Polygon layers will remain for Voluntary Party Liability Exemption (VPLE), Facility-wide and Green Space grant site boundaries. Users can generally find more detailed information related to the layout of the specific activities in reports available on the Bureau of Remediation and Redevelopment Tracking System (BRRTS) on the Web (BOTW).

Please contact with technical issues during this transition process.

NEW EPA Resources For All Appropriate Inquiries (AAI)

In Feb. 2023, the U.S. Environmental Protection Agency (U.S. EPA) published a final rule to amend the EPA’s Standards and Practices for All Appropriate Inquiries (AAI). The new rule allows the use of ASTM International Designation E1527–21, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process, to satisfy AAI requirements.

The EPA recently published several new resources that address the new ASTM standard for Phase I Environmental Site Assessments (E1527-21):

AAI is a process of evaluating the environmental conditions and assessing potential liability for contamination at a property and is completed prior to a property transaction. Satisfying AAI is one of the requirements for the innocent landowner, contiguous property owner, or bona fide prospective purchaser limitations on Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) liability.

The amended AAI rule allows parties acquiring properties to use the most up-to-date industry standard practice for Phase I Environmental Site Assessments to comply with the AAI Rule requirements. It also allows the previous standard practice, ASTM Designation E1527-13, to be used for one year after publication of the rule.

ITRC Vapor Intrusion Mitigation Training Series On June 1 And June 6

The Interstate Technology Regulatory Council (ITRC) will offer online vapor intrusion training over two sessions on June 1 and June 6, 2023.

Environmental professionals are encouraged to register at the CLU-IN Vapor Intrusion Mitigation webpage.

The Vapor Intrusion Mitigation training series provides an overview of vapor intrusion mitigation and presents information on how to utilize the ITRC’s Vapor Intrusion Mitigation Interactive Directory. The interactive directory includes up-to-date fact sheets, technology information sheets and checklists. DNR staff participated in the development of both the technical resources and training.

The training consists of a series of eight modules on the topics listed below and will be presented over two, two-hour sessions:

Session 1 – June 1, 2023 | Noon-2 p.m.
Topics Include:

  • Introduction and overview of vapor intrusion mitigation training team
  • Conceptual site models for vapor intrusion mitigation
  • Public outreach during vapor intrusion mitigation
  • Rapid response and ventilation for vapor intrusion mitigation
  • Remediation and institutional controls

Session 2 – June 6, 2023 | Noon-2 p.m.
Topics Include:

  • Active mitigation approaches
  • Passive mitigation approaches
  • System verification, OM&M and exit strategies


Brownfields 2023 Conference Travel Scholarships Available

Are you part of a community group, non-profit organization, environmental justice group or other organization that is interested in attending the 2023 National Brownfields Training Conference, Aug. 8-11, 2023 in Detroit, Michigan?

Travel scholarships might be available to you! Travel scholarships include registration fees and housing for four nights. Limited scholarships are available – the deadline to apply is May 17 at 11:59 p.m. Access the application and additional information on the Brownfields 2023 Travel Scholarship webpage.

What is the benefit of attending the 2023 National Brownfields Training Conference?

The brownfields conference is a platform to connect and learn best practices of cleanup and reuse of contaminated properties from a variety of industry stakeholders. The theme of this year’s conference is “Sustainable Communities Start Here,” which will cover topics such as financing, liability, community engagement, and the latest brownfields technologies and strategies. The 180 sessions, workshops, and networking events are curated to help you gain inspiration and strategies for revitalizing communities, catalyzing economic growth, restoring the environment and protecting the public health.

When: Aug. 8-11, 2023
Where: Hunting Place, Detroit, Michigan
More information available on the Brownfields 2023 website.

DNR To Hold Remediation And Redevelopment External Advisory Group Subgroup Meetings

The Wisconsin Department of Natural Resources (DNR) will host Remediation and Redevelopment External Advisory Group (RR EAG) subgroup meetings on Wednesday, June 7, 2023.

The RR EAG was formed to address a broad range of issues, encompassing both technical and policy topics related to encouraging the investigation, cleanup and redevelopment of contaminated sites in Wisconsin.

The RR EAG identifies issues and topics of interest that may be addressed by ad hoc subgroups. Subgroup members are expected to research and develop recommendations on the selected topics for presentation to the full group. RR EAG subgroup meetings are open to the public.

birds eye view map of the Milwaukee DNR service center. Parking area indicated in red on eastside of map. Entrance to DNR circled in yellow in northeast corner of DNR office. Road entrance to the DNR office is on West Saint Paul Avenue which is north of DNR office.

Map for parking and entrance to the DNR Milwaukee Office

Milwaukee DNR Service Center
Harbor Room
1027 W. St. Paul Ave.
Milwaukee, WI 53233

Main entrance on the northeast corner of the building; check in with the security desk inside the front door.

In-person attendees should RSVP to by noon on Tuesday, June 6, 2023.


Visit the DNR’s RR EAG webpage for meeting agendas, materials and additional information. Subscribe for updates on future RR EAG meetings.

Public Input Opportunity – Publication Brownfields Redevelopment in Wisconsin (RR-933)

The Remediation and Redevelopment (RR) Program is now seeking input on the publication Brownfields Redevelopment in Wisconsin (RR-933).

The purpose of the guidance is to provide a definition of brownfield and provide essential steps and resources for successful redevelopment of brownfield properties.

The document can be found at the RR Program’s Public Notices & Guidance webpage under the “Program Guidance” tab. Comments may be submitted through May 11, 2023, to Michael Prager at or

RR Program Seeks Seven Dual LTE Positions

The Remediation and Redevelopment (RR) Program is recruiting for seven Dual Limited Term Employee (Dual LTE) positions:

  • Leaking Underground Storage Tank (LUST) and Petroleum Inspection Fund (PIF) Environmental Program Associate located at Fitchburg Service Center in Fitchburg, Wisconsin (1 position, Job ID number 10020)
  • Superfund Environmental Program Associate and Hydrogeologist based in any Wisconsin DNR office depending upon candidate preference and space availability (3 positions, Job ID number 10022)
  • Department of Transportation (DOT) and LUST Hydrogeologist based in any Wisconsin DNR office depending upon candidate preference and space availability (3 positions, Job ID number 10031)

Each dual LTE appointment is comprised of two 20-hour positions for an expected work schedule of 40 hours per week. The intention is to hire one candidate for each dual position. The deadline to apply for the Dual LTE positions is May 8, 2023.

Dual LTE– LUST and PIF Environmental Program Associate:

  • This position will assist in technical case management by maintaining regular communication with regional hydrogeologists, supervisors and central office coordinators to ensure that applicable case files are identified, evaluated, scanned and uploaded in proper format. The position will also assist regional staff fulfilling public records requests, conducting QA/QC of database information, and providing technical assistance to the public and regulated community.

Dual LTE – Superfund Environment Program Associate and Hydrogeologist:

  • This position will be responsible for reviewing Superfund site files to identify key Superfund documents including Institutional Control (IC) documents, updating IC documentation, and conducting IC audits for Superfund sites. The position will maintain regular communication with the Superfund site project managers, and the IC Grant team that will be coordinating and directing the work. This position will also complete file review and digitization of permanent site file records and assist in updating database information for Superfund sites.

Dual LTE – DOT and LUST Hydrogeologist:

  • The DOT hydrogeologist position is the DNR lead on contaminated sites identified during Wisconsin Department of Transportation (WisDOT) road construction projects. The responsibilities of this position include maintenance of WisDOT case files and case review to determine status and prepare recommendations. This position will maintain communication with WisDOT staff on a regular basis to ensure that mutually agreed upon priorities are met.
  • The LUST hydrogeologist position will provide programmatic support in the RR program. The responsibilities of this position include evaluating LUST cases for potential risks to receptors and additional actions required to address risk and/or bring cases to closure. This position will maintain regular communication with regional staff and the LUST program coordinator.

Full position descriptions are available online at the website (search the Job ID numbers noted above).

EPA Offers Brownfields 101 Training

The US Environmental Protection Agency (EPA) Region 5 will offer online training about Brownfields 101.

Brownfields 101 – April 11, 2023, 9:30-11 a.m. CST

This training will cover brownfields basics, assessing environmental conditions, and ownership and management. Register online.

Access additional information, resources, and materials about EPA Region 5 (Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin) on the Brownfields and Land Revitalization in EPA Region 5 website.

Reminder To Use Updated Case Closure Request Form (4400-202)

The Remediation and Redevelopment (RR) Program reminds anyone submitting a case closure request that the most up to date Case Closure Request Form (4400-202) must be used per Wis. Admin. Code § NR 726.09(1). This form was last updated in October 2022 to clarify database fees and provide information on electronic submittals.

The current form can be found online, or by visiting, search “4400-202.” Please avoid using any desktop versions that you may have saved. A case closure request may be considered incomplete if submitted on an obsolete form.

The Wisconsin Department of Natural Resources suspended the requirement to submit a paper copy of the closure request form and supporting documentation. Customers are strongly encouraged to submit documents via the online Submittal Portal. Please refer to Guidance for Submitting Documents (RR-690) for additional information on the format and procedures for submitting documents to the RR Program.