20200611_BoardOfWaterSupplyGraphic4CCR.jpg
This graph shows the sources of drinking water. (Courtesy of the Board of Water Supply)

Mackenzie Phillips
Clean Air/Safe Drinking Water Program
Environmental Division, Directorate of Public Works
U.S. Army Garrison Hawaii

The Safe Drinking Water Act requires all community water systems to provide an annual Consumer Confidence Report (CCR) to their customers. CCRs provide drinking water quality information, including information on the origin of the drinking water and any detected contaminants.

Annual Drinking Water Quality Reports for U.S. Army Garrison, Hawaii (USAG-HI) water systems are now available for review. The reports are on the USAG-HI Safe Drinking Water Act Program website. (See links below to reports.)

The USAG-HI Directorate of Public Works (DPW) operates four water systems -- Aliamanu, Fort Shafter, Schofield, and Tripler. The Aliamanu report includes both the Aliamanu and Red Hill Housing areas. The Schofield report includes Schofield Barracks, Wheeler Army Airfield, and Helemano Military Reservation.

Since 1999, the U.S. Environmental Protection Agency (EPA) has required public water suppliers to provide Annual Water Quality Reports to their water users. These reports are designed to educate the public on the origin of drinking water and provide water quality information for the previous year.

In Hawaii, the primary drinking water supply comes from underground aquifers fed by rainfall. Naturally occurring minerals, radioactive material, and other substances resulting from animal or human activity may be dissolved by the rainfall and percolate into the aquifers. The EPA sets limits on the amount of such contaminants present in drinking water, and DPW monitors the drinking water to help ensure that no contaminant level is exceeded.

DPW works hard to provide Army Soldiers, families, and employees with the highest water quality possible. DPW encourages residents and workers to look at the report for the installation where they live and/or work. If you have any questions about the reports or would like to request a hard copy, please contact the DPW Environmental Division at (808) 656-3107 or (808) 656-3104.

How does the CCR work?
An essential part of the CCR is the water quality table. Review your installation's information on page 3, which shows the level of each substance detected during 2019.

There are three columns on the table, which should be given special attention: the maximum contaminant level (MCL), the level detected, and whether a violation occurred. The Environmental Protection Agency (EPA) set MCLs for a number of substances, which may be found in drinking water. All of the substances listed in the table are below the MCLs set by the EPA.

U.S. Army Garrison Hawaii continues to provide some of the cleanest and safest drinking water available in Hawaii.