As we welcome the end of an unprecedented year and prepare to welcome 2021, we would like to reflect on some of the key industry topics of 2020 that will likely provide clues to the issues and challenges our industry is sure to experience in the New Year.
To Grab or to Composite...That is the PFAS Question!
The debate regarding the most appropriate method to collect non-potable liquids—specifically POTW influents and effluents—continues. Last month California State Water Quality Control Board (SWQCB) staff appeared to walk back parts of the original Phase III PFAS monitoring orders, directing the responsibility for making decisions regarding sampling techniques back to the agency and their laboratory. October is upon us and water treatment professionals are wondering…
From TOP to Bottom: TOP Assay Not Likely to Close Mass Balance on Total PFAS
Testing for polyfluoroalkyl substances (PFAS) is increasing nationwide as multiple states launch investigations into PFAS contaminated areas. But while a handful of these “forever chemicals” are tested and starting to be regulated, the vast majority are not. Much of the difficulty lies in the testing itself;
PFAS: It’s Not Just In The Water
In response to widespread contamination, the EPA and FDA have released testing methods that identify 29 PFAS compounds in water and 16 PFAS compounds in food. The EPA also released a 2020 update of its PFAS Action Plan that details the guidelines for testing PFAS in drinking water, recommendations for cleaning up contaminated groundwater, and the allocation of around 14.9 million dollars towards researching PFAS in agriculture, waste, and the environment.
Phase III PFAS Investigation Accreditation Status: PFAS Determinations in Non-Potable Liquids & Biosolids for Phase III
DDW Sets New Response Levels for PFOA and PFOS
Yesterday, the State Water Resources Control Board (SWRCB) Division of Drinking Water (DDW) issued a press release regarding new Response Levels (RL) for PFOA and PFOS.
The RL for Perfluorooctanoic acid (PFOA) is now set at 10 parts per trillion (ppt)
The RL for Perfluorooctanoic sulfonate (PFOS) is now set at 40 ppt.
Previously California RL’s were set at the federal level of 70 ppt for PFOA and PFOS combined.