Public input

Open House “Q & A” on New Vapor Intrusion Guidance

The Remediation and Redevelopment Program will host a two-hour “Q & A” regarding the agency’s new guidance on vapor intrusion. The open house event will take place on Tuesday, August 29, in Madison, and via teleconference at the same time.

The guidance – RR-800 – is currently available for written public comment through the DNR’s “proposed program guidance” web page; comment on the document will be accepted through September 8, 2017.

Subjects discussed during the “Q & A” session will not take the place of written comments on the document. Rather, the opportunity is meant to help further clarify the material for those who may have questions about the content, with hope of alleviating potential erroneous comments.

Details of the vapor intrusion “Q & A” open house are:

  • Date: Tuesday, August 29
  • Time: 9:00 – 11:00 CST
  • Location: DNR Central Office, Room G-09, 101 S. Webster St., Madison, WI 53707
  • Conference Call Number: 1-855-947-8255, Passcode: 6612745#

Vapor intrusion team leader Alyssa Sellwood and Policy and Technical Resources Section Chief Judy Fassbender will be available to answer questions and clarify issues for participants.

If you plan to attend in person, please notify Alyssa Sellwood by the close of the business day on Monday, August 28, so that building security can be prepared for your arrival.

Updated Vapor Intrusion Guidance – RR-800 Public Input Opportunities

The RR Program seeks your input on a significantly revised document titled, RR-800, Addressing Vapor Intrusion at Remediation & Redevelopment Sites in Wisconsin. The revisions to RR-800 include: updates from ITRC’s and USPEA’s vapor guidance; additional details on required deliverables; expectations for outreach; clarification on preemptive mitigation; and a significantly expanded discussion on vapor mitigation (design options, performance verifications, long-term operation and maintenance, and continuing obligations).

The document can be reviewed at http://dnr.wi.gov/news/input/guidance.html and comments can be submitted through September 8, 2017 to the Vapor Intrusion Team Leader, Alyssa Sellwood at Alyssa.Sellwood@wisconsin.gov. In addition, the RR Program will host a question and answer session on Tuesday, August 29th.  Mark your calendars; more details to come.

Public Input Opportunity on Soil RCLs for PAHs

The Remediation and Redevelopment (RR) Program seeks your input on a new guidance document titled Calculating Soil RCLs for PAHs Wis. Admin Code § NR 722.11 (1) (RR-079).

This guidance document introduces the modified residual contaminant level (RCL) spreadsheet that allows for an alternative method of calculating non-industrial direct contact RCLs for seven carcinogenic polycyclic aromatic hydrocarbons (cPAHs). The modifications are based on a reassessment of the risk posed by cPAHs by the Wisconsin Department of Health Services.

The modified spreadsheet assesses these cPAHs exclusively on cumulative risk and does not assess their individual compound-specific risk. Use of this spreadsheet complies with the requirements of Wis. Admin. § NR 722.11 for developing alternate standards when meeting the RCLs in Wis. Admin. § NR 720 is not practicable.

The comment period will be open through May 31, 2017. This document can be reviewed on the Department’s public input web page, and comments can be submitted to Paul Grittner.