The U.S. Environmental Protection Agency (EPA) announced a Final Rule on April 19, 2024, designating two of the most common per- and polyfluoroalkyl substances (PFAS)—PFOA and PFOS, including their salts and structural...more
The final rule on the National Primary Drinking Water Regulation (NPDWR) for per- and polyfluoroalkyl substances (PFAS) was announced by the U.S. Environmental Protection Agency (EPA) on April 10, 2024. This Update summarizes...more
The U.S. Environmental Protection Agency, on March 14, 2022, issued both a final rule incorporating revised ASTM International standard practices, ASTM International’s E1527–21 ‘‘Standard Practice for Environmental Site...more
After a lengthy committee process, ASTM International revised its standard practice for Phase I environmental site assessments (ASTM E1527) for the first time since 2013. Phase I environmental site assessments facilitate...more
The U.S. Environmental Protection Agency (EPA) recently adopted a final regulation governing the issuance of guidance documents, which the agency historically has used to provide direction to agency staff, other governmental...more