PFAS in Groundwater Workshop: The Professional’s Challenge (#139)

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Date: December 5, 2019
Location: Las Vegas, Nevada


Designed to be highly participative, this NGWA workshop will address and sharpen the thought processes of practitioners regarding how to apply scientific and legal considerations to sites contaminated with per- and polyfluoroalkyl substances (PFAS), a unique class of emerging contaminants widespread in groundwater and surface water, which, due to their toxicological characteristics, are increasingly the focus of environmental protection agencies worldwide.

PFAS include several thousand individual chemical compounds, each with at least one carbon-fluorine (C-F) bond and most of which are soluble in groundwater. The C-F bond is one of the strongest chemical bonds in nature. While useful in a wide variety of applications, the unique C-F chemistry of PFAS also creates significant challenges in water treatment and remediation. The fate, transport, and chemical transformations of most PFAS in the environment are still unknown and are areas of active scientific research.

This one-day workshop will include an opening presentation followed by group work sessions and discussions designed to improve analytical and problem-solving skills.

Those who complete the workshop will receive the PFAS Site Assessment and Remediation Certificate, which:

  • Demonstrates the ability to analyze a site for the potential presence of PFAS
  • Demonstrates an awareness of current PFAS information in the scientific and regulatory arena
  • Identifies data gaps in site assessments needed to recommend mitigation options such as containment or remediation
  • Devises a remediation plan including, but not limited to, treatment technologies, communicating risk, and quantifying cost benefit in the context of regulation.


8:15 a.m. Registration

8:30 a.m. Welcome and format

8:35 a.m. PFAS: How We Got to Where We Are — Taryn McKnight, Test America Inc.

9:30 a.m. Case Study 1 introduction and overview: Tank Farm

9:35 a.m. Case Study 1 work session

10:00 a.m. Break

10:20 a.m. Group reports

10:50 a.m. Case Study 2 introduction and overview: Fire Academy

10:55 a.m. Case Study 2 work session

11:25 a.m. Group reports

11:45 a.m. Lunch (on your own)

12:45 p.m. Discussion Topic: Crafting Treatment Plans in the Absence of Uniform MCLs — How Do You Proceed?

1:25 p.m. Case Study 3 introduction and overview: Assessment — When and Where Do You Stop?

1:30 p.m. Case Study 3 work session

2:05 p.m. Group reports

2:35 p.m. Discussion Topic: Mitigating Damage to Remediation Sites by Natural Disasters — David Lipson, Ph.D.

3:05 p.m. Break

3:25 p.m. Communicating Risk — Stakeholders, Clients, and Government Regulators (presentation based on case studies)

4:00 p.m. Open discussion —

  • How do you quantify cost benefit in the context of regulation in your remediations plans?
  • Closure or postclosure remediation site status — how does PFAS being designated emerging contaminants impact?
  • Containment or remediation — which is a better option when data gaps exist?

4:15 p.m. Wrap-up

4:20 p.m. Workshop adjourns


• NGWA members — $395

Nonmembers — $545

Team discounts up to 10% available. Click for more details.

Full-time students can save 10% by using code STU-139Dec19.

In order to receive this discount, you need to register by phone, or enter the code on the print form and return it to us by fax or mail.

Venue and accommodations


Las Vegas Convention Center
3150 Paradise Road
Las Vegas, Nevada 89109
(702) 892-0711


Westgate Las Vegas Resort & Casino
3000 Paradise Road
Las Vegas, Nevada 89109
(800) 732-7117
(702) 732-5111

Accommodations: NGWA’s accommodations room block at the hotel referenced above, the Westgate Las Vegas Resort & Casino, has sold out, and we have been informed the hotel is fully booked. You may want to try these nearby hotels found via for availability — Fairfield Inn & Suites, rate listed is $177.00 per night, distance 0.9 miles from the Las Vegas Convention Center, the workshop venue; La Quinta, $79.00 daily rate, 1 mile from LVCC; The Rita Suites, $64.00 daily rate, 0.5 miles from LVCC; or Sahara Resort, $124.00 daily rate, 0.48 miles from LVCC. (Information available as of November 8, 2019.)