Drinking Water:

DOD Has Acted on Some Emerging Contaminants but Should Improve Internal Reporting on Regulatory Compliance

GAO-18-78: Published: Oct 18, 2017. Publicly Released: Oct 18, 2017.

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Brian J. Lepore
(202) 512-4523
leporeb@gao.gov.

 

Jose A. Gomez
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gomezj@gao.gov

 

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DOD and EPA have found chemicals in drinking water at or near military installations that may cause cancer and other health issues. Some of these chemicals can be found in firefighting foam and rocket propellants.

DOD has taken steps to limit individuals' exposure to some chemicals, including providing alternative drinking water supplies and installing water treatment systems. Still, DOD's incomplete internal reporting limits its ability to monitor installation compliance with safe drinking water regulations.

This report makes 5 recommendations to improve DOD's data, reporting, and oversight of drinking water regulations.

Military installations where DOD has started to address elevated levels of two chemicals found in installation drinking water: Perflourooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA), as of March 2017

 

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Map of the United States showing 11 locations.

Additional Materials:

Contact:

Brian J. Lepore
(202) 512-4523
leporeb@gao.gov.

 

Jose A. Gomez
(202) 512-3841
gomezj@gao.gov

 

Office of Public Affairs
(202) 512-4800
youngc1@gao.gov

What GAO Found

The Department of Defense (DOD) has not internally reported all data on compliance with health-based drinking water regulations or used available data to assess compliance. DOD data for fiscal years 2013-2015 indicate that DOD public water systems complied with Environmental Protection Agency (EPA) and state health-based drinking water regulations at levels comparable with other systems in the United States. However, the military departments did not report all violations to DOD, i.e., while 77 installations reported violations to DOD, GAO found that at least 16 additional installations did not. Until DOD takes steps to increase the clarity and understanding of its internal reporting requirements, it may not have the data it needs to fully oversee compliance. DOD also has not used its data to determine why its two types of systems—one that provides DOD-treated water and another that provides non-DOD-treated water—have different compliance rates. Specifically, DOD's data indicate that about 99 percent of the people who received non-DOD-treated drinking water were served by systems with no violations, while about 89 percent of the people who received DOD-treated drinking water were served by systems with no violations. Absent further analysis of its data, DOD may not be able to improve overall compliance.

DOD has initiated actions to address concerns with both its firefighting foam and also with elevated levels in drinking water of perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and perchlorate, which are DOD-identified emerging contaminants. PFOS and PFOA can be found in DOD's firefighting foam. DOD has restricted its use of this foam and is funding efforts to develop a new foam that meets DOD performance requirements. Additionally, at 11 military installations (see fig.), DOD has shut down wells, provided alternate water sources, or installed water treatment systems to respond to elevated levels of PFOS and PFOA, at times in response to EPA and state orders.

Military Installations Where DOD Has Initiated Actions to Address Elevated Levels of PFOS and PFOA in Installation Drinking Water, as of March 2017

Military Installations Where DOD Has Initiated Actions to Address Elevated Levels of PFOS and PFOA in Installation Drinking Water, as of March 2017

Why GAO Did This Study

According to DOD, about 3 million people in the United States receive drinking water from DOD public water systems, which are to comply with EPA and state health-based regulations. EPA and DOD have detected elevated levels of two unregulated, DOD-identified emerging contaminants found in firefighting foam—PFOS and PFOA—in drinking water at or near installations. Perchlorate, an unregulated chemical used by DOD in rocket fuel, can also be found in drinking water.

The Senate Report accompanying a bill for national defense authorization for fiscal year 2017 included a provision for GAO to review DOD management of drinking water contaminants. This report examines the extent to which DOD has (1) internally reported data on compliance with health-based drinking water regulations at military installations and used those data to assess compliance at its two types of public water systems, and (2) taken actions to address concerns with its firefighting foam and elevated levels of PFOS, PFOA, and perchlorate in drinking water at or near military installations. GAO reviewed DOD guidance and EPA drinking water regulations, advisories, and orders; analyzed DOD and EPA drinking water data; and visited seven installations from among those addressing emerging contaminants in drinking water.

What GAO Recommends

GAO is making five recommendations to improve DOD's reporting and use of data on compliance with health-based drinking water regulations. DOD concurred with the recommendations.

For more information, contact J. Alfredo Gómez at (202) 512-3841 or gomezj@gao.gov or Brian Lepore at (202) 512-4523 or leporeb@gao.gov.

Recommendations for Executive Action

  1. Status: Open

    Comments: DOD concurred with this recommendation. When we confirm what actions DOD has taken in response to this recommendation, we will provide updated information.

    Recommendation: The Assistant Secretary of Defense for Energy, Installations, and Environment, in consultation with the Secretaries of the military departments, should identify and implement any necessary changes to DOD's environmental compliance policy to clarify DOD's reporting requirements for violations of health-based drinking water regulations. (Recommendation 1)

    Agency Affected: Department of Defense

  2. Status: Open

    Comments: DOD concurred with this recommendation. When we confirm what actions DOD has taken in response to this recommendation, we will provide updated information.

    Recommendation: The Secretary of the Army should identify and implement actions to increase understanding at Army installations and commands about DOD's reporting requirements for violations of health-based drinking water regulations. These actions may include improved communication to or additional training for personnel. (Recommendation 2)

    Agency Affected: Department of Defense

  3. Status: Open

    Comments: DOD concurred with this recommendation. When we confirm what actions DOD has taken in response to this recommendation, we will provide updated information.

    Recommendation: The Secretary of the Navy should identify and implement actions to increase understanding at Navy installations and commands about DOD's reporting requirements for violations of health-based drinking water regulations. These actions may include improved communication to or additional training for personnel. (Recommendation 3)

    Agency Affected: Department of Defense

  4. Status: Open

    Comments: DOD concurred with this recommendation. When we confirm what actions DOD has taken in response to this recommendation, we will provide updated information.

    Recommendation: The Secretary of the Air Force should identify and implement actions to increase understanding at Air Force installations and commands about DOD's reporting requirements for violations of health-based drinking water regulations. These actions may include improved communication to or additional training for personnel. (Recommendation 4)

    Agency Affected: Department of Defense

  5. Status: Open

    Comments: DOD concurred with this recommendation. When we confirm what actions DOD has taken in response to this recommendation, we will provide updated information.

    Recommendation: The Assistant Secretary of Defense for Energy, Installations, and Environment, in consultation with the Secretaries of the military departments, should (a) review reported compliance data to identify the reasons for any differences in the number of violations of health-based drinking water regulations between DOD's two types of public water systems and (b) identify and implement any actions needed to address the causes of any differences in the number of violations between DOD's two types of public water systems. (Recommendation 5)

    Agency Affected: Department of Defense

 

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