Water Conditioning & Purification Magazine

North America: Maine PFAS testing requirement instituted

In March, the Maine Department of Environmental Protection (DEP) announced in a memorandum to licensed facilities that land apply, compost or process biosolids (i.e., wastewater treatment sludge) that it will require the testing of that material for per- and polyfluoroalkyl substances (PFAS), a group of chemicals that includes PFOA, PFOS, PFBS and many other compounds. Given that these compounds are ubiquitous (and that land application of biosolids or composted biosolids as a soil amendment has been a common and long-standing practice in Maine and elsewhere), the aggressive new testing requirement is likely to have far-reaching effects.

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