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Sampling and Analytical Considerations for National Primary Drinking Water Regulations for PFAS


Course Description:

On or around April 24, 2024 EPA will publish a rule that was finalized on April 10,2024 to regulate 6 perfluoro alkyl substances (PFAS) in water. This rule will affect close to 50,000 water systems in the US. This course will review the proposed sampling and analytical requirements in detail, including:

  1. The analytes to be regulated and their Maximum Contaminant Levels (MCL)
  2. The relationship of the laboratory PQL and the MCL, and related terms like MRL. DL, and LCMRL:
  3. Special sampling considerations,
  4. The analytical methods to be used,
  5. The frequency of monitoring for various Public Water Systems (PWS).
  6. The proficiency testing requirements,
  7. The reporting requirements, including options for averaging results.
  8. The implementation schedule.
  9. Projected costs to Public Water Systems

Expected Learning Outcomes:

  • Learn how to read an EPA final rule, including the difference between the Preamble, the Regulatory Text, and the Docket.
  • Gain an understanding of the makeup and health risks of these "forever chemicals."
  • Know the monitoring frequency based on the size of your PWS.
  • Know the proposed MCL and how to calculate a Hazard Index.
  • Know how to average results.
  • Know how to report results below the "Practical Quantitation Limit.
  • Know which methods to be used.
  • Understand "trigger levels" that can be used to reduce monitoring.
  • Know how to use any existing data.

Intended Audience:

  • Accreditation Bodies, Assessors, Internal Auditors, Wastewater Facilities, Quality Managers, Laboratory Managers


$125 for TNI members
$140 for non-members

Group rates are available: Each purchased webcast is to be viewed by only one student. If you would like multiple viewers, separate purchases must be made. A group rate of $600 for TNI members or $675 for non-members is available for groups of 5-10 students at a single location. Click here to purchase this webcast at the group rate.

TNI Members: you must be logged-in to the website to receive the member rate.

No certificates are automatically provided with this training. A Certificate of Completion (CoC) ($30 per person) or Certificate of Attendance (CoA) ($20 per person) may be purchased during or after registration or webcast purchase. A passing score of at least 70% must be received on the exam in order to receive CEUs and a CoC. Scores of less than 70% will receive a Certificate of Attendance at no reduced fee. For a CoA you will not need to take the quiz and you will not receive CEUs. To receive your certificate, contact Paul Junio at [email protected] with date of purchase and date of training completion. See FAQs for additional information.


About Webcasts: Upon receipt of your payment, you will receive a special link by e-mail to watch the webcast on your computer. The link is time-limited: you will have full access to the webcast and any associated handouts for 6 months after receipt of payment, at which time the link will expire. Webcasts cannot be downloaded; they are intended for viewing on your computer only during the 6-month window. If you have any questions, please contact Ilona Taunton at [email protected].

4 hours

CEUs: 0.4

Presented By:

Mary Johnson

About the Presenter:
Mary Johnson, a graduate of Loyola University of Chicago, was the long time Laboratory Manager at Four Rivers Sanitation Authority. She is a past chair of WEF’s Laboratory Practices Committee and currently represents WEF on the Environmental Monitoring Coalition. She is also a member of the Illinois WEA’s Laboratory Committee and holds an Illinois Class I Wastewater Operator Certificate.