Environmental Contamination

Temporary groundwater monitoring wells

Posted on by elisabethkuisis

Temporary wells have become increasingly common as part of site investigations and Phase II environmental site assessments. Although temporary wells can be useful tools, they have limitations in their use. It is critical that temporary wells are properly installed to ensure the integrity of the results and that they are adequately protected to avoid becoming a conduit for contaminant migration.

Installation of temporary wells requires prior approval from the department, as described in s. NR 141.29, Wis. Adm. Code. In addition, compliance with Ch. NR 141 is required for all wells installed for the purposes of Ch. 292, Wis. Stats. This means all monitoring wells installed for site investigations and Phase II reports submitted to the department must meet the NR 141 requirements, which includes prior department approval for temporary wells.

To avoid incurring additional costs and unneeded project delays, refer to the DNR guidance on the appropriateness and limitations of temporary wells, publication RR-647, “Fact Sheet of Frequently Asked Questions about Temporary Wells“.

 

Updated Guidance Document: Frequently Asked Questions about the Voluntary Party Liability Exemption (VPLE)

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The Remediation and Redevelopment Program has finalized a guidance document to help people using the Voluntary Party Liability Exemption program. The final version of the document, “Frequently Asked Questions about the Voluntary Party Liability Exemption (VPLE),” DNR publication RR-507, is now available. The VPLE program allows people to conduct an environmental investigation and cleanup of a contaminated property with DNR oversight and receive an exemption from future liability. This document provides detailed information about the VPLE program that has helped facilitate many successful brownfield remediation and redevelopment projects across Wisconsin.

The DNR response to public comments received about this guidance is also available. Questions should be directed to Michael Prager, 608-261-4927.

New Hazardous Substance Spills Publication Available

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RR Program staff have updated the popular “Reporting Hazardous Substance Spills” (RR-560) publication, available online for posting in your office or sharing with clients and colleagues.

Wis. Stat. § 292.11 (2) and Wis. Admin. § NR 706.5 require individuals and entities that possess or control a hazardous substance, or that cause the discharge of a hazardous substance to the environment to notify DNR immediately about the discharge. RR-560 summarizes reporting requirements, reporting exemptions, and DNR spill coordinator contact information. RR-560 is intended for use in businesses and other places where hazardous substance spills may occur, so that reporting requirements can be quickly determined and followed. It is also useful for local governments, environmental consultants, and individuals involved in commercial/industrial property construction and development.

RR Program RCL Calculator Updated

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The Wisconsin DNR updated the numerical soil standards, or residual contaminant levels (RCLs), in the Remediation and Redevelopment program’s spreadsheet of RCLs to reflect the US EPA June 2016 update to its Regional Screening Level (RSL) website. The RR Program RCL Spreadsheet Update (RR-052d) provides a summary of the updates incorporated in the June 2016 spreadsheet.

For more information and to access the RCL calculator (macro and non-macro versions), visit the Resources for Environmental Professionals webpage and click on the “Soil RCLs” tab.