EMERGING CONTAMINANTS RESOURCES
EMERGING CONTAMINANTS RESOURCES
EEI understands these are uncertain times when it comes to drinking water regulations related to emerging contaminants. Having the latest information is vital for Water Utility Managers and other decision-makers. We are pleased to offer this page as a resource for the most current information on this evolving topic.
Click the topics below for additional information.
State and federal regulations concerning emerging contaminants are continually evolving. EEI will continue to update this list of resources as new developments unfold.
RECENT DEVELOPMENTS
EEI Releases Infographic – State and National Regulatory Updates (October 2025)
This infographic summarizes the key updates and reminders from the IEPA and USEPA regarding PFAS drinking water rules announced in the Spring and Summer of 2025. JPEG Infographic – State / JPEG Infographic – National / PDF Infographic – Combined.
EEI Releases Infographic – Project Funding (August 2024)
This infographic summarizes the key considerations when pursuing and securing a loan from the Illinois EPA’s State Revolving Fund for Emerging Contaminants. JPEG Infographic / PDF Infographic.
EEI Releases Infographic and Whitepaper – Finalized Drinking Water Rule (May 2024)
This infographic and white paper highlight the USEPA’s finalized set of national primary drinking water regulations (NPDWR) for six per-and polyfluoroalkyl substances (PFAS) as an addition to the Safe Drinking Water Act (SDWA). JPEG Infographic / PDF Infographic. To read the whitepaper related to this infographic: Finalized Drinking Water Rule Whitepaper.
USEPA Announces Finalized National Primary Drinking Water Regulation (April 2024)
On April 10, 2024, the US Environmental Protection Agency (EPA) announced the finalized national primary drinking water regulation for the same six PFAS species originally proposed to be regulated under the draft rule which was released in March 2023. For more detailed information, see the links below to resources published by the EPA.
EPA PFAS Resource and Overview Page
EEI Releases Infographic – Public Communication Strategies (February 2024)
This infographic can be utilized as a guideline for water utilities/purveyors when communicating about PFAS to their communities. JPEG Infographic / PDF Infographic.
EEI Releases Infographic and Whitepaper – NPDES Permit Special Conditions (December 2023)
This infographic and whitepaper highlight the key PFAS sampling, testing, and reporting requirements under the Illinois EPA’s new NPDES permit special conditions issued to wastewater treatment facilities. JPEG Infographic / PDF Infographic. To read the whitepaper related to this infographic: NPDES Permit Special Conditions Whitepaper.
EEI Releases Infographic – Lifecycle of PFAS (November 2023)
This infographic presents a course of the lifecycle of PFAS chemicals in the environment, with a central focus on the “forever chemicals” path through the water and wastewater treatment process. To view a simplified version of this infographic: JPEG Infographic / PDF Infographic. For a detailed version of this infographic: JPEG Infographic / PDF Infographic.
USGS Releases Report (October 2023)
Recently, the United States Geological Survey (USGS) released a report titled “Statewide Sampling to Determine Spatial Distribution, Prevalence, and Occurrence of Per- and Polyfluoroalkyl Substances (PFAS) in Illinois Community Water Supplies.” EEI published a summary of key findings in the USGS report.
EEI Releases Infographic – Regulatory Timeline (June 2023)
The infographic highlights the past, present, and upcoming steps in the development of the proposed National Primary Drinking Water Regulations. JPEG Infographic / PDF Infographic.
USEPA Announces a Proposed Regulatory Notification (March 2023)
On March 14, 2023, EPA announced the proposed National Primary Drinking Water Regulation (NPDWR) for six PFAS including PFOA, PFOS, PFNA, HFPO-DA, PFHxS, and PFBS. EEI published a Regulatory Notification to summarize the proposed regulation. Learn More on the USEPA’s Website.
Return to this page to learn about the latest developments.
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