ASR - MAR Work Group

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.

Read the Workgroup Charter

ASR MAR Work Plan


Co-Chairs Include: 

  • Lorrie Council, Texas Commission on Environmental Quality
  • Karen Feret, US Environmental Protection Agency
  • Chi Ho Sham, Eastern Research Group, Inc.

More about Co-Chairs

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

Interested Organizations and/or Water Professionals

  • Tim Parker, Parker Groundwater
  • Frederick Bloetscher, Ph.D., Florida Atlantic University

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.

View the Action Plan (See page 30)

National Water Reuse Action Plan: Online Platform

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