Our Publications

GWPC and its partnering organizations have produced several reports and publications related to groundwater, source water, UIC, and oil and gas. Publications range from broad topic area pamphlets written for laymen and the general public, to more in-depth reports on topics such as shale gas and state groundwater regulations and processes.

Underground Gas Storage Regulatory Considerations

A national Natural Gas Storage Work Group released this report on underground gas storage that evaluates potential vulnerabilities at gas storage operations and identifies prospective regulatory responses for consideration by state and federal agencies.

Most underground gas storage facilities have safe histories of operation and allow large supplies of gas to be stored during times of low demand, and withdrawn from storage when demand for natural gas is high; thereby reducing the need for larger transmission pipelines and allowing for continuous supply of gas in the event of supply interruptions. However, when an accident occurs it can have dramatic impacts to public health, safety and the environment.

The work group, which was led by states from across the country and was organized by the Interstate Oil and Gas Compact Commission and Ground Water Protection Council, developed the report “Underground Gas Storage Regulatory Considerations” to serve as a resource for regulatory agencies and includes input from experts in academia, industry, non-profit organizations, and other state and federal agencies.

SOGRE Peer Review: Idaho

The State Oil and Gas Regulatory Exchange (SOGRE), an innovative regulatory improvement program created under the States First Initiative by two state-based organizations, finds Idaho’s oil and gas regulatory structure to be mostly in line with the regulatory practices of other oil and gas producing states, and provides guidance for Idaho as its regulation of oil and gas exploration, drilling and production continues to evolve.

Team members of this SOGRE assessment presented its final assessment report of Idaho’s oil and gas statutory authorities and implementing regulations during a joint meeting of the Idaho Senate Resources and Environment Committee and Idaho House Resources and Conservation Committee today.

This is the final report.

Ohio Class II Peer Review

This review of the State of Ohio was finalized in January 2017 by a team of Class II program managers from other state programs and overseen by the GWPC.  We would like to thank the State of Ohio for their assistance to the review team and we look forward to working with other states as we move forward with additional reviews.

Oklahoma Produced Water Project Summary

The principal objective of this project was to compile information in order to better understand produced water discharge, disposal, and re-use issues, regulatory requirements, options and opportunities in the state of Oklahoma.

Well Integrity Regulatory Elements

These "Regulatory Elements for Well Integrity" are intended to provide regulators with a set of ideas to consider when improving oversight of the permitting, construction, operation and plugging of oil and gas wells. The Elements were developed by a group of state officials who met informally in conjunction with GWPC meetings in Nashville, Tennessee (September 23 – 26, 2012), Sarasota, Florida (January 22 – 24, 2012), and St. Louis (September 22 – 25, 2013).

Ground Water Report

This link downloads the full report.  Individual chapters and more information about the report can be downloaded here.

State of Nebraska Class II UIC Program Peer Review

This review of the State of Nebraska was finalized in April, 2016 by a team of Class II program managers from other state programs and overseen by the GWPC.  We would like to thank the State of Nebraska and the staff of the Nebraska Oil and Gas Conservation Commission for their assistance to the review team and we look forward to working with other states as we move forward with additional reviews.

State of Utah Class II UIC Program Peer Review

(Published Nov. 2015)

GWPC announces the publication of the first Class II UIC program peer review conducted under the revamped peer review process. This process, a joint GWPC and States First initiative, is designed to assist states by evaluating their Class II UIC programs, recognizing the positive aspects of a program, and offering suggestions for improvement. This review of the State of Utah, which was conducted in November, 2015 by a team of Class II program managers from other state programs and overseen by the GWPC, is the first of what GWPC hopes will be a series of state reviews to be conducted in the future.  

We would like to thank the State of Utah and the staff of the Division of Oil, Gas, and Mining for their assistance to the review team and we look forward to working with other states as we move forward into 2016 and beyond.

Alternative Water Supplies

Alternative Water Supplies section of the Groundwater Report to the Nation

Potential Injection Induced Seismicity Associated With Oil & Gas Development: A Primer on Technical & Regulatory Considerations Informing Risk Management & Mitigation

(Sept. 2015)This report is developed by the StatesFirst Induced Seismicity by Injection Work Group (ISWG) members (the State agencies) with input and support from the ISWG technical advisors (subject matter experts from academia, industry, federal agencies, and environmental organizations) to help better inform all stakeholders and the public on technical and regulatory considerations associated with evaluation and response, seismic monitoring systems, information sharing, and the use of ground motion metrics. It also is intended to summarize the range of approaches that have been used or are currently being used by states to manage and mitigate the risks associated with seismicity that may be induced by injection. StatesFirst is an initiative of the Interstate Oil and Gas Compact Commission and the Ground Water Protection Council.

Produced Water

The Ground Water Protection Council (GWPC) is pleased to provide an updated version of our 2009 report on U.S. Produced Water Volumes and Management Practices.  This 2015 report, which contains data for 2012, discusses the amounts of water brought to the surface during oil and gas production and details many of the current minimization, treatment, re-use and disposal protocols used to manage produced water.  It also contains state by state produced water summaries.  The report was developed for the GWPC by John Veil of Veil Environmental, LLC.  We think you will find this report both thorough and valuable. 

Overview of Groundwater Protection Regulations in Oil and Gas States

This report is part of an update to the Ground Water Protection Council’s 2009 Report, State Oil and Gas Regulations Designed to Protect Water Resources.1 The purpose is to document and outline the range of definitions and requirements for protecting groundwater, based on the regulations of oil and gas agencies and water quality protection agencies in 27 oil and gas producing states. The report is divided into two parts, the first documents the groundwater protection standards for oil and gas agencies and the second part addresses the standards for the water quality protection agencies within the same states. The scope is limited to an overview of regulations that address groundwater quality protection standards through policy statements, definitions, technical requirements such as well casing and cementing depths, groundwater classification and groundwater protection standards. 

State Oil and Gas Regulations designed to protect water resources

In step with dramatic industry growth over the past five years, states have substantially improved groundwater

protection laws and regulations governing oil and natural gas production. State regulatory strategies

differ in response to unique local circumstances and characteristics; over time, they evolve to address

public concerns about the safety and environmental impact of oil and gas development, as well as rapidly

changing technologies, new field discoveries, revised leading operational practices, internal and external

reviews, and regulatory experience.


This Toolkit is a result of state and EPA collaboration. It could not have been developed without the time, effort and dedication of those who contributed to it and particularly the expertise of the state and EPA regional participants who are implementing the practices in this report.

White Paper II Summarizing a Special Session on Induced Seismicity

The topic of induced seismicity, or earthquakes caused by human activities, and in particular seismicity associated with hydraulic fracturing and disposal wells, has been the source of heightened interest and controversy over the past several years. To help disseminate factual information on the subject, the Ground Water Protection Council (GWPC) and its research arm, the Ground Water Research and Education Foundation (GWREF), decided to include sessions on induced seismicity in two of the organization’s 2013 conferences.

An Assessment of State Needs for Regulating Geologic Sequestration of Carbon Dioxide

This report lays a foundation for states to accurately project additional personnel and associated costs and supporting capital outlay for a Class VI primacy program for “large-scale” geosequestration. The Underground Injection Control (UIC) program, expected to be the resident instrument for implementing the U.S. Environmental Protection Agency’s sequestration regulatory program, has provided the framework for the safe and effective isolation of fluids injected underground for 30 years.

White Paper Summarizing 2012 Stray Gas Incidence & Response Forum

The purpose of the Forum was to explore the technical and scientific basis for stray gas investigations including the fundamentals of the physical and chemical properties of methane, and factors that influence the occurrence, migration, and fate of methane in the shallow subsurface environment. The conference agenda was structured to address the diverse topics and issues that should be considered during the course of an emergency stray gas incident response.

White Paper Summarizing 2013 Session on Induced Seismicity

This special technology transfer session for seismologists, regulators, and other stakeholders entitled “Assessing & Managing Risk of Induced Seismicity by Injection” was a part of the GWREF Spotlight Series.

State Oil & Gas Regulations Designed to Protect Water Resources

A review of state regulations designed to protect water from oil and gas activities.

State Oil & Gas Agency Groundwater Investigations

The role of state oil and gas agencies in protecting groundwater through investigation and regulatory reform.

Shale Gas Primer

A primer on the development of shale gas reservoirs through hydraulic fracturing and other means.

Injection Wells: An Introduction to Their Use, Operation and Regulation

An introductory brochure on the use, operation, and regulation of underground injection wells.