David Y.Ige | DOH Press Release: DOH Says Areas B1, G1, and H1 of Navy Drinking Water System Safe
DOH Press Release: DOH Says Areas B1, G1, and H1 of Navy Drinking Water System Safe
Published on March 3, 2022 in Latest news from the department, Press room
WHAT: The State of Hawaii (DOH) Department of Health declares Drinking Water System Restoration Plan areas B1, G1, and H1 safe; Amended Health Notice; Residents allowed to drink tap water
OR: Area B1, McGrew, Halawa
Click here to view the completed checklist that supports the DOH Health Advisory Amendment for Area B1.
Area G1, Camp Smith
Click here to view the completed checklist that supports the DOH Health Advisory Amendment for Area G1.
Zone H1, Aliamanu Military Reserve (AMR)
Click here to view the completed checklist that supports the DOH Health Advisory Amendment for Area H1.
The DOH health advisory remains in place for areas H2 and H3, which are also labeled as Aliamanu’s military reserve.
Click here for an updated map on the state of the area.
WHEN: March 3, 2022
BACKGROUND: All users of the Navy water system in areas B1, G1 and H1 can now use water for all purposes including drinking, cooking and oral hygiene. This includes consumption by pets.
The source water for the Navy Water System comes from the Navy’s Waiawa Well. Water from the Waiawa well has been tested to verify that it is safe to drink. The Navy’s Red Hill well, which is contaminated, has been disconnected from the water supply.
DOH and U.S. Environmental Protection Agency (EPA) subject matter experts have completed a final review of all sample data and how the Navy water system maintains operations to ensure safe drinking water.
The DOH and EPA have overseen months of work to provide individuals and families in Areas B1, G1, and H1 with assurance of safe drinking water. This included supervising flushing operations to confirm that the Navy followed flushing and testing protocol to verify that contamination was removed from the potable water system.
A sample taken from a house in Area B1 was originally tested above the specific DOH incident parameter for bis(2-ethylhexyl) phthalate, also known as di(2-ethylhexyl) phthalate or DEHP. The house was rinsed and resampled. Subsequently, all sampled homes and buildings meet DOH’s DEHP screening level of 6 parts per billion.
An independent third-party laboratory incorrectly reported the presence of bis(2-chloroethyl)ether (BCEE) in samples from areas B1 and H1. The Interagency Drinking Water System Team (IDWST) investigation determined, in agreement with the laboratory, that the initial BCEE results were a false positive. As members of the IDWST, the EPA and the DOH agree with this conclusion. The IDWST resampled all locations where BCEE was initially detected. The laboratory examined the original samples and the new samples and did not detect BCEE in any of them.
The IDWST joint plan to sample more than 900, or at least 10% of households, and 100% of schools and child development centers across the entire water system in the Marine, provides accurate data to determine that the water in all homes and buildings is safe. . Other houses and buildings will be sampled as part of a long-term monitoring plan.
The decision to modify the health advisory and declare water in areas B1, G1 and H1 safe was made after multiple lines of evidence from the DOH confirmed that no contamination is B1, G1 and H1. The DOH investigation showed:
Reported sources of contamination are contained
- The Navy’s Red Hill Well is physically disconnected from the Navy’s water system.
The spring water from the Waiawa well is drinkable
- Sample results show that the water meets state and federal regulations and project screening levels of incident-specific parameters.
No further contamination occurs in the water system
- A Cross Connection Control survey shows that the distribution system is protected, resulting in no additional source of contamination.
The water in the distribution system is drinkable
- Completion of area flushing plan implementation demonstrates that the entire area is flushed.
- Sample results show that the water in the distribution system meets state and federal regulations and project screening levels of incident-specific parameters.
- Drinking water does not show shine, olfactory evidence or other qualitative methods of petroleum.
The water in the plumbing of houses/buildings is potable
- The flushing plan includes procedures to ensure that no service connections will re-contaminate the distribution system.
- Samples were taken from homes and buildings three days after flushing. This stagnation period was incorporated to detect possible leaching of contaminants from pipes or other plumbing items.
- Sample results show that the water in the home/building premise plumbing meets state and federal regulations and project screening levels of incident-specific parameters.
If users of the Navy water system have a question or concern regarding the quality of their water, please contact the DOH at [email protected] or 808-586-4258.
RESOURCES: Click here for a complete list of DOH selection criteria.
Click here to see the validated test results.
Click here for a pager on how to read lab results.
Click here to view the complete data package for Area B1 that led the DOH to issue this amendment.
Click here to view the complete data package for the G1 area that led the DOH to issue this amendment.
Click here to view the complete data package for the H1 area that led the DOH to issue this amendment.
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Katie Arita Chang
Acting Communications Director
E-mail: [email protected]
Phone: (808) 286-4806