EPA proposal for Perchlorate MCL, new PFAS treatment and infrastructure failures

What water systems need to know about Perchlorate regulations, new PFAS treatment research, and wastewater spills.
Jan. 9, 2026
2 min read

In this episode of Talking Under Water, Mandy Crispin and Bob Crossen discuss the EPA’s proposal to establish a national primary drinking water regulation for perchlorate under the Safe Drinking Water Act. The hosts break down the proposed rule, monitoring requirements, cost implications, and what utilities should prepare for, plus give updates on PFAS treatment research and recent wastewater spills.

Show Notes

Timestamps

  • 00:00 – Cold open
  • 00:54 – Introduction to episode and overview
  • 01:32 – EPA proposal for perchlorate regulation explained
  • 03:49 – Comparing perchlorate MCLs to PFAS standards
  • 05:00 – Binning approach for monitoring frequency
  • 07:21 – Waiver process for reduced monitoring
  • 09:41Initial monitoring requirements and costs
  • 10:02 – Public comment deadline and hearing details
  • 11:04 – PFAS treatment research update
  • 12:23 – Wastewater spill reports
  • 15:29 – Housekeeping

About the Podcast  

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld (WW) and Stormwater Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, storm water and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.

About the Author

Mandy Crispin

Mandy Crispin is the editor-in-chief of WaterWorld, having joined Endeavor Business Media in 2023. She lives in Las Vegas, Nevada and is a graduate of University of Nevada, Las Vegas. She has internal and external corporate communications experience in disparate industries including online retail, gaming, plastics and is now enjoying exploring the water utility space. Crispin can be reach at [email protected].

Bob Crossen

Bob Crossen is the vice president of content strategy for the Water and Energy Groups of Endeavor Business Media, a division of EndeavorB2B. EB2B publishes WaterWorld, Wastewater Digest and Stormwater Solutions in its water portfolio and publishes Oil & Gas Journal, Offshore Magazine, T&D World, EnergyTech and Microgrid Knowledge in its energy portfolio. Crossen graduated from Illinois State University in Dec. 2011 with a Bachelor of Arts in German and a Bachelor of Arts in Journalism. He worked for Campbell Publications, a weekly newspaper company in rural Illinois outside St. Louis for four years as a reporter and regional editor. Crossen can be reached at [email protected].

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