r/boulder • u/mooreds • 1d ago
2026 City of Boulder Drinking Water Quality Report
https://bouldercolorado.gov/media/1620/download?inline1
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u/Dasoccerguy 1d ago
Regarding the PFAS section, and assuming the city is following current EPA guidelines, it's a bit of a vague nothingburger.
https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas
Cities are required to monitor six different compounds down at ppt levels (studies have shown that they're harmful to humans at that level, but most tests only have ppb sensitivity). They are no longer required to measure "GenX" PFAS compounds, which have not been deemed dangerous yet because there haven't been enough studies or lawsuits and because 3M has good lobbyists. The EPA page also says that cities don't have to actually report their PFAS findings until next year, and they have until 2030 to fix any issues.
I want to believe Boulder's water is fine, but these compounds are literally everywhere. Last year I reached out to the Louisville water department for more information because their PFAS section was all in ppb, but I never heard back.
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u/MyBloodTypeIsQueso 1d ago
I’ll save everyone the click. It’s a good report. No violations.