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Commissioners press for MSDS and tests as PFAS/PAS concerns surface
Summary
Commissioners raised concerns about PFAS/PAS and trace-level testing after the applicant's product letter noted no intentional PFAS but declined to certify trace-level absence; consultants said limited local tests showed low parts-per-trillion detections but acknowledged broader uncertainties.
Several commissioners pressed the applicant for product safety documentation after reviewing a manufacturer letter that said products do not list PFAS/PAS intentionally but did not certify trace-level absence without laboratory testing. One commissioner described documented cases of PFAS/PAS at car-wash sites in other states and requested applicants provide MSDS/SDS and, if appropriate, laboratory testing of the specific product blends in use.
Consultants and the applicant replied that trace detections of PFAS/PAS are widespread in many building products and waters, and that limited testing the team has performed (a cited Simsbury car-wash test) showed less than three parts per trillion in separator discharge. Consultants said they could perform additional targeted testing, but they noted that trace detections are often present at background levels and that further study would be necessary to quantify local risk. The commission listed PFAS/PAS trace testing and the product ingredient list among items to include in its referral to zoning.
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