Updates From DHS Clarify Hazard Index Reporting

On June 7, the Wisconsin Department of Health Services (DHS) provided the Wisconsin Department of Natural Resources (DNR) with an updated letter on the utilization of the hazard index (HI) approach to assess the cumulative risk of PFAS (per- and polyfluoroalkyl substances).

This updated letter clarifies recommendations provided to the DNR in November 2020, making clear that the hazard index should be reported to one decimal place (examples are provided in the memo). No other changes to the DHS recommended approach were made.

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Public Input Opportunity – Publication RR-0115, Guidance: Contaminated Sediment Fact Sheet

The Remediation and Redevelopment (RR) Program is now seeking input on the publication RR-0115, Guidance: Contaminated Sediment Fact Sheet

The fact sheet is a brief outline of the typical approaches that are used to navigate through Wisconsin Statutes (Wis. Stat.) ch. 292 and Wisconsin Administrative Code (Wis. Admin. Code) chs. NR 700 to 799 with respect to the investigation and remediation of contaminated sediment.

The document can be found at the RR Program’s Public Notices & Guidance web page under the “Program Guidance” tab.

Comments may be submitted through July 1, 2021 to Carrie Webb at CarrieA.Webb@wisconsin.gov or to DNRRRGuidance@wisconsin.gov.

Reminder: Issues & Trends Webinar on June 15, 2021: 1,4-Dioxane – A Contaminant of Emerging Concern

The Remediation and Redevelopment (RR) Program reminds you that the next webinar in the Issues & Trends series will take place on Tuesday, June 15, 2021, from 12:00 p.m. to 1:00 p.m.

The scheduled presentation is: 1,4-Dioxane – A Contaminant of Emerging Concern.

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Now Available: Publication RR-649, Guidance for Documenting the Investigation of Human-made Preferential Pathways Including Utility Corridors

Following a public comment period and consideration of the comments received, the publication RR-649, Guidance for Documenting the Investigation of Human-made Preferential Pathways Including Utility Corridors, is now posted and available online.

RR-649, formerly titled Guidance for Investigating Utilities, focused on investigating the migration of contamination in media along the exterior of utility corridors within the surrounding utility bedding. Current research indicates that contamination and vapors may migrate within utilities as well as other preferential pathways and the updated version of RR-649 reflects this new understanding. For additional information, please see the July 2020 Issues & Trends webinar, Vapor Intrusion: New Preferential Pathways, in the Remediation and Redevelopment Program’s training library.

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Reminder: Issues & Trends Webinar on June 15, 2021: 1,4-Dioxane – A Contaminant of Emerging Concern

The Remediation and Redevelopment (RR) Program reminds you that the next webinar in the Issues & Trends series will take place on Tuesday, June 15, 2021, from 12:00 p.m. to 1:00 p.m.

The scheduled presentation is: 1,4-Dioxane – A Contaminant of Emerging Concern.

This presentation will provide an overview of 1,4-dioxane. RR Program engineer Angela Carey will review considerations for site investigation scoping, sampling and analysis and selection of remedial options. In addition, information regarding proposed updates to 1,4-dioxane groundwater quality standards in NR 140 will be provided.

A Zoom web conferencing registration link, along with a schedule of future Issues & Trends presentations, may be found on the RR Program’s Conferences and Training webpage.

Recordings of previous Issues & Trends webinars can be found in the RR Program’s Training Library.

 

Start Preparing Now for FY22 EPA Brownfield Grant Applications

The US Environmental Protection Agency (EPA) is expected to release application guidelines for the FY22 Brownfield Multipurpose, Assessment, Revolving Loan Fund and Cleanup Grants competition in early September 2021. The EPA grants provide direct funding to local governments, redevelopment agencies, tribes, nonprofit organizations and other eligible entities. The grants may be utilized for brownfields assessment, cleanup, technical assistance and related activities.

Entities interested in applying for FY22 EPA Brownfield Grants should start getting ready now to apply. This national grant competition is highly competitive and the quality of your project plan and application materials is important.

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ITRC Offers Online Training June 1 And 15 Regarding Comprehensive Vapor Intrusion Mitigation

The Interstate Technology Regulatory Council (ITRC) will soon offer a new, online training series based on recent, comprehensive vapor intrusion technical guidance from the national group.

The series, to be held on June 1 and June 15, will cover the purpose and use of the December 2020 comprehensive web-based series of technical resources for Vapor Intrusion Mitigation.

Staff from the Remediation and Redevelopment Program participated in the development of both the technical resources and training.

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Public Input Opportunity Ends Soon for Publication RR-982, Guidance on Post-Closure Modifications

The public comment period ends next week, May 11, 2021, for publication RR-982, Guidance on Post-Closure Modifications.

The document can be found at the RR Program’s Public Notices & Guidance web page under the “Program Guidance” tab. Comments may be submitted through May 11, 2021 to Jodie Peotter at Jodie.Peotter@wisconsin.gov or DNRRRGuidance@wisconsin.gov.

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Public Input Opportunity Ends Soon for Publication RR-649, Guidance for Documenting the Investigation of Human-made Preferential Pathways Including Utility Corridors

The public comment period ends next week for publication RR-649, Guidance for Documenting the Investigation of Human-made Preferential Pathways Including Utility Corridors.

The document can be found on the RR Program’s Public Notices & Guidance web page under the “Program Guidance” tab. Comments may be submitted through May 3, 2021, to Jim Walden at jamese.walden@wisconsin.gov or DNRRRGuidance@wisconsin.gov.

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DNR Awards Brownfields Grant To Village Of Clinton

The Wisconsin Department of Natural Resources (DNR) announced the site where a former gas station that later served as a small engine repair shop in the Village of Clinton is on its way to being cleaned up with help from a grant from the department.

The financial award comes from the DNR’s Wisconsin Assessment Monies (WAM) program, which provides contractor services worth up to $35,000 for eligible sites. The DNR awarded the grant to the Village of Clinton for the now-vacant property that is known to have some degree of contamination, though just how much contamination is unknown.

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