Under the bill, DNR may not prevent, delay, or otherwise impede any construction project or project of public works based on a presence of PFAS contamination unless DNR determines that 1) the project poses a substantial risk to public health or welfare, 2) there is a substantial risk that the project will create worsening environmental conditions, 3) the entity proposing to complete the project is responsible for the original contamination, as a result of conduct that was reckless or was done with the intent to discharge PFAS into the environment, or 4) DNR is specifically required under the federal Clean Water Act to prevent, delay, or otherwise impede the project. “Public works” is defined to mean the physical structures and facilities developed or acquired by a local unit of government or a federally recognized American Indian tribe or band in this state to provide services and functions for the benefit and use of the public, including water, sewerage, waste disposal, utilities, and transportation, and privately owned landfills that accept residential waste.

In addition, under the bill, if DNR seeks to collect samples from lands not owned by the state based on permission from the landowner, such permission must be in writing, and DNR must notify the landowner that such permission includes the authority to collect samples, to test those samples, and to publicly disclose the results of that testing. The landowner may revoke such permission at any time prior to the collection of samples. Under the bill, DNR also may not publicly disclose such PFAS testing results unless it notifies the landowner of the test results at least 72 hours before publicly disclosing them.

The bill also requires DNR, or a third-party contract by DNR, to respond in a timely manner to requests from any person to conduct PFAS testing on samples taken from the person’s property if practicable and if funds are available to do so, if there is a reasonable belief that PFAS contamination may be present on the property, and if existing information such as public water supply testing data is not available.

The bill also requires DNR, in the 2025-27 fiscal biennium, to increase its voluntary PFAS testing activities.

The bill requires DNR to survey or resurvey local fire departments about their use and possession of PFAS-containing firefighting foam, send communications and information regarding PFAS-containing firefighting foam, and contract with a third party to voluntarily collect PFAS-containing firefighting foam.

Under current law, an individual owner or renter of a contaminated private well, subject to eligibility requirements, may apply for a grant from DNR to cover a portion of the costs to treat the water, reconstruct the well, construct a new well, connect to a public water supply, or fill and seal the well. The bill provides that a grant for costs to treat the water may be used to cover the cost of a filtration device and up to two replacement filters.

In addition, under the bill, if DNR determines that a claimant who is applying for a grant under the well compensation grant program on the basis of PFAS contamination would be eligible for a grant under the innocent landowner grant program created under the bill, and funding under that program is available, DNR must refer the claimant’s application to that program instead of processing it under the well compensation grant program. If the claimant is denied under the innocent landowner grant program, DNR must refer the claim back to the well compensation grant program.

The bill requires DNR to contract with an entity to conduct a pilot project in which PFAS-contaminated surface water is partially or fully diverted to a portable treatment system and treated water is returned to the surface water. DNR and the entity must conduct tests to evaluate the success of the pilot project.

The bill allows DNR, or a contracted third party, to begin response and remedial actions, including site investigations, at any PFAS-contaminated site where a responsible party has not been identified or where the responsible party qualifies for a grant under the innocent landowner grant program. The bill directs DNR to prioritize response and remedial actions at sites that have the highest levels of PFAS contamination and sites with the greatest threats to public health or the environment because of PFAS.

The bill requires DNR and the Board of Regents of the University of Wisconsin System to enter into a memorandum of understanding to ensure that the state laboratory of hygiene provides guidance and other materials, conducts training, and provides assistance to laboratories in this state that are certified to test for contaminants other than PFAS in order for them to become certified to test for PFAS, and to assist laboratories certified to test for PFAS in this state to reduce their testing costs and shorten the timeline for receiving test results.

Under the bill, the Board of Regents, in coordination with DNR, may provide grants to laboratories in this state that are certified to test for PFAS, or that are seeking such certification, to assist with up to 40 percent of the costs of purchasing equipment necessary for testing for PFAS.

The bill requires the state laboratory of hygiene to prepare a report on these efforts and provide the report to the legislature.

The bill requires DNR and the Board of Regents of the University of Wisconsin System to enter into a memorandum of understanding to 1) study and analyze the cost, feasibility, and effectiveness of different methods of treating PFAS before they are released into a water system or water body; 2) conduct a cost-benefit analysis of different options for disposing of biosolids or sludge that contains or may contain PFAS; 3) study and analyze the cost, feasibility, and effectiveness of different destruction and disposal methods for PFAS; 4) study and analyze the cost, feasibility, and effectiveness of different methods for remediating PFAS that leave the contaminated medium in place and methods that remove the contaminated medium; 5) study and analyze the migration of PFAS into the bay of Green Bay; 6) study and analyze the migration of PFAS into the Wisconsin and Mississippi Rivers and their tributaries; 7) conduct any additional studies related to PFAS, as approved by the Joint Committee on Finance; and 8) create a comprehensive, interactive map showing all available PFAS testing data and, for each data point, whether it exceeds any applicable state or federal standard for PFAS. Such data may not contain any personally identifiable information unless the entity to which the data applies is a municipal entity that is required to test and disclose its results under state law.

The bill requires DNR to report to the legislature once every six months for a period of three years to provide a detailed description of DNR’s expenditures under the bill and a detailed description of DNR’s progress in implementing the provisions of the bill.

Under current law, the Department of Administration and DNR administer the Safe Drinking Water Loan Program (SDWLP), which provides financial assistance to municipalities, and to the private owners of community water systems that serve municipalities, for projects that will help the municipalities comply with federal drinking water standards. DNR establishes a funding priority list for SDWLP projects, and DOA allocates funding for those projects. Also under current law, DNR administers the Clean Water Fund Program (CWFP), which provides financial assistance to municipalities for projects to control water pollution, such as sewage treatment plants.

Under the bill, if DNR, when ranking SDWLP or CWFP projects or determining an applicant’s eligibility for assistance under those programs, considers whether an applicant that intends to extend service outside municipal boundaries because of water contamination is “small” or “disadvantaged,” DNR must determine the applicant to be small or disadvantaged if the area receiving the extended service would normally be determined to be small or disadvantaged, regardless of whether the existing service area would normally be determined to be small or disadvantaged.

Under current law, a public utility may not engage in certain construction, expansion, or other projects unless the Public Service Commission grants a certificate of authority (CA) for the proposed project. Under the bill, if a water public utility or a combined water and sewer public utility (water utility) fails to obtain a CA before commencing a project for which one is required, PSC may not investigate, impose a penalty against, or bring an action to enjoin the water utility if 1) the water utility undertook the project in response to a public health concern caused by PFAS, the presence of which was unknown to the water utility until shortly before it commenced the project, and the water utility provides evidence showing that the utility has exceeded or is likely to exceed the applicable state or federal standard for that type of PFAS; 2) the water utility promptly notifies PSC of the work and, within 30 days after commencing the work, submits the appropriate application and supporting documentation to PSC; and 3) the total cost of the project is not greater than $2,000,000.

In the PSC administrative code, the bill adds an emergency resulting from water supply contamination to the circumstances under which PSC authorization is not necessary prior to a utility beginning necessary repair work. The current administrative code limits this to an emergency resulting from the failure of power supply or from fire, storm, or similar events.