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12/02/2021 - 12/02/2021

Webinar (Recorded)

Current Work & Goals

Water reuse represents a major opportunity to supplement existing water supplies.  Many potential water sources such as industrial process water, agricultural return flows, municipal wastewater, oil and gas produced water, and stormwater can be captured and used for enhanced aquifer recharge.

Established in September 2019, the Aquifer Storage and Recovery – Managed Aquifer Recharge (ASR-MAR) Workgroup was formed to examine, discuss, and make recommendations to the GWPC Board of Directors regarding Aquifer Storage and Recovery (ASR) and Managed Aquifer Recharge (MAR) issues or topics.

The Workgroup serves as a forum for Federal, State, Tribal, and local government, organizations and public interest, and professional organizations to exchange information, views, and ideas, and to communicate and collaborate on efforts concerning ASR and MAR issues or topics. Its efforts are not limited in scope to just UIC issues. The issues that may be examined are broad and may include enhanced or managed aquifer recharge practices that are not regulated by the SDWA UIC program.

Co-Chairs Include:

  • Lorrie Council, Texas Commission on Environmental Quality
  • Vacant – US EPA Representative
  • Chi Ho Sham, Eastern Research Group, Inc.

Federal Government Agencies

  • Doug Beak, Ph.D., U.S. EPA, Robert S. Kerr Environmental Research Center
  • Andrew O’Reilly, Ph.D., USDA — Agricultural Research Service

Tribal, State, Territory and/or Local Government Agencies

  • Andrea Croskrey, Texas Water Development Board
  • Robert T. Verrastro, PG, South Florida Water Management District

Interested Organizations and/or Water Professionals

  • Tim Parker, Parker Groundwater
  • Frederick Bloetscher, Ph.D., Florida Atlantic University
  • Jeffrey Davis, PE, CGWP, Integral
  • Neil Burk, PG,

The GWPC ASR-MAR Workgroup has been identified in the U.S. EPA National Water Reuse Action Plan (Action 7.4) as a leader to increase understanding of current aquifer storage and recovery practices. The action item recognizes that there are differences in how aquifer recharge is described, implemented and managed. The action seeks to better understand the range of aquifer storage and recovery practices and corresponding efforts to ensure the protection and sustainability of groundwater resources. The GWPC Workgroup will facilitate meetings to study and find solutions to the challenges currently limiting the use of Enhanced Aquifer Recharge (EAR) and ASR-MAR.

ASR-MAR in Agriculture
Featuring: Andrew M. O’Reilly (Andy), USDA, Agricultural Research Service & Scott A. Bradford, Ph.D., USDA, ARS SAWS Unit

October 3, 2022

Presentations (PDF)

2022 State Summit Webinar Series on Water Reuse – Session 1: Aquifer Storage and Recovery-Managed Aquifer Recharge
Featuring: Chi Ho Sham, ERG; Lorrie Council, TWDB, Karen Feret, US EPA, and Dan Yates, GWPC

May 25, 2022

ASR in Oklahoma: From No to Go
Featuring: Hillary Young, OK DEQ; Chris Neel, OK Water Resources Board; Doug Beak, Robert S. Kerr Environmental Research Center

Tuesday, April 19 | 1 p.m. – 2:30 p.m. (Central)

Virtual Field Trip: Provo, Utah ASR Projects
Featuring: Jeff Davis, Barr Engineering

September 2021

Guidance for Understanding & Minimizing Arsenic Mobilization in Aquifer Storage & Recovery
Featuring: Sarah Fakhreddine, Ph.D., and Charles Werth, Ph.D., The University of Texas at Austin

Thursday, Dec. 2, 2021

Presentations (PDF)


ASR-MAR Webinar: Tools for Planning, Development, & Improvement of Aquifer Storage and Recovery Projects: Siting & Recovery Efficiency Assessment
Featuring: TWDB and TCEQ

Tuesday, July 27, 2021

Presentations (PDF)


ASR-MAR Webinar: What’s New with EPA? Reuse, UIC, Stormwater
Featuring: Justin Mattingly, Julie Blue, and Kara Goodwin

Tuesday, February 9, 2021

Presentations (PDF)


Managed Aquifer Recharge in California – Long-Term Projects and New Emphasis Under the New Groundwater Law
Featuring: Timothy Parker, Parker Groundwater
Thursday, November 12, 2020

Aquifer Storage & Recovery and Aquifer Recharge Wells in Florida

Featuring: Joe Haberfeld, P.G., Florida DEP
Thursday, August 6, 2020


December 2, 2021
10:30 am - 12:00 pm
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