Tyco Forwards Phase I Biosolids Work Plan to DNR
11/18/2019- A work plan by Tyco for Phase I of assessing area agricultural fields where PFAS-contaminated biosolids have reportedly been spread for decades has been formally submitted to the Wisconsin DNR. Tyco states the plan complies with DNR’s request and outlines the first stage in developing a solution to the biosolids issue. John Perkins, speaking on behalf of Tyco, says the land study of the 16 fields in questions involves interviews, reviewing historic records, and analyzing topography in preparation to draw samples from potentially impacted soil, potable wells, and surface water.
“This approach is to look at documentation, interviews, a lot of documentation that either the DNR has, other agencies may have, as well as obtaining agreements from the landowners to actually do actual sampling. Site walks will be included in Phase I, as well. Based on the summary information from Phase I, Phase II would allow for soil sampling and potable well sampling events.”
The company maintains that the DNR has data that PFAS compounds are coming from other sources unrelated to Tyco’s firefighting foam and moreover, that the DNR has a legal responsibility to identify those sources. Perkins says part of this study and proceeding ones include attempting to uncover if there are other responsible parties and who they might be.
“We would assist the DNR to review permits for fields in the area, other land applications, as well. It does start with identifying historical records, but it really does come down to some analytical results. There are just some distinct elements of PFAS in the signature for various compounds, for instance Scotch Guard or historical industrial uses.”
Tyco has agreed to fully fund the efforts outlined in the new work plan. It’s anticipated Phase I can be completed within 3 or 4 months of the DNR’s authorization. Upon completion and DNR concurrence with the Phase I investigation, a Phase II work plan will then be developed based on the data received.