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EWG's Tap Water Database — 2019 UPDATE

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Haloacetic acids (HAA5)

Marine Corps Base Hawaii

NOTE: Marine Corps Base Hawaii purchases water from Honolulu-Windward-Pearl Harbor which is required to test for haloacetic acids (haa5). Sample information shown below was taken by Honolulu-Windward-Pearl Harbor.

Haloacetic acids are formed when disinfectants such as chlorine are added to tap water. The group of five haloacetic acids regulated by federal standards includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid. Read More.

Haloacetic acids are harmful during pregnancy and may increase the risk of cancer. Haloacetic acids are genotoxic, which means that they induce mutations and DNA damage. Multiple studies by the National Toxicology Program have demonstrated the cancer-causing properties of individual haloacetic acids in laboratory animals. The Department of Health and Human Services is currently considering listing di- or tri-haloacetic acids for possible inclusion in its comprehensive Report on Carcinogens.

Click here to read more about disinfection byproducts.

 

128

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND220ND
2014ND80ND
2015ND160ND
2016ND20ND
2017ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for the group of five haloacetic acids, or HAA5, was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 60 ppb

The legal limit for the group of five haloacetic acids (HAA5), established in 1998, was based on the need for residual disinfectant levels in water served to customers and the cost of treatment. This limit does not fully protect against the risk of cancer and harm to the developing fetus due to exposure to haloacetic acids.

ppb = parts per billion

All test results

NOTE: Marine Corps Base Hawaii purchases water from Honolulu-Windward-Pearl Harbor which is required to test for haloacetic acids (haa5). Sample information shown below was taken by Honolulu-Windward-Pearl Harbor.

Date Lab ID Result
2012-06-13201206160220ND
2012-06-13201206160226ND
2012-06-13201206160224ND
2012-06-13201206160227ND
2012-06-13201206160221ND
2012-06-13201206160223ND
2012-09-04201209060626ND
2012-09-04201209060625ND
2012-09-11201209140113ND
2012-09-11201209140114ND
2012-09-11201209140115ND
2012-09-11201209140116ND
2012-09-11201209140109ND
2012-09-11201209140111ND
2012-09-11201209140110ND
2012-09-12201209150223ND
2012-09-17201209200146ND
2012-09-17201209200149ND
2012-09-17201209200151ND
2012-09-17201209200147ND
2012-12-10201212130133ND
2012-12-10201212130200ND
2012-12-10201212130134ND
2012-12-11201212140108ND
2012-12-11201212140107ND
2012-12-12201212150031ND
2013-03-11201303140337ND
2013-03-11201303140333ND
2013-03-11201303140335ND
2013-03-11201303140338ND
2013-03-12201303150448ND
2013-03-12201303150449ND
2013-06-03201306050261ND
2013-06-03201306050262ND
2013-06-04201306060360ND
2013-06-04201306060356ND
2013-06-04201306060361ND
2013-06-05201306070169ND
2013-09-03201309060209ND
2013-09-03201309060208ND
2013-09-04201309060455ND
2013-09-04201309060451ND
2013-09-06201309100496ND
2013-12-02201312041341ND
2013-12-02201312041342ND
2013-12-03201312050648ND
2013-12-03201312050650ND
2013-12-04201312060240ND
2014-03-10201403120665ND
2014-03-10201403120662ND
2014-03-11201403130592ND
2014-03-11201403130593ND
2014-03-11201403130590ND
2014-06-02201406040807ND
2014-06-02201406040811ND
2014-06-03201406070101ND
2014-06-03201406070096ND
2014-06-03201406070100ND
2014-09-09201409120804ND
2014-09-10201409120798ND
2014-09-10201409120807ND
2014-09-10201409120809ND
2014-09-10201409120799ND
2014-12-01201412040364ND
2014-12-02201412040386ND
2014-12-02201412040387ND
2014-12-03201412050323ND
2014-12-03201412050322ND
2015-01-06201501080393ND
2015-01-06201501080394ND
2015-01-06201501080400ND
2015-01-06201501080403ND
2015-01-13201501150585ND
2015-04-01201504030244ND
2015-04-06201504080295ND
2015-04-06201504080296ND
2015-04-08201504100159ND
2015-04-08201504100160ND
2015-07-07201507080163ND
2015-07-09201507100111ND
2015-07-09201507100112ND
2015-07-13201507150580ND
2015-07-13201507150581ND
2015-10-05201510070194ND
2015-10-05201510070196ND
2015-10-06201509160111ND
2015-10-06201509160112ND
2015-10-07201509160110ND
2016-01-05ND
2016-01-06ND
2016-01-12ND
2016-01-12ND
2016-01-12ND
2016-04-11ND
2016-04-11ND
2016-04-11ND
2016-04-13ND
2016-04-19ND
2016-07-05ND
2016-07-05ND
2016-07-05ND
2016-07-06ND
2016-07-11ND
2016-10-03ND
2016-10-04ND
2016-10-05ND
2016-10-14ND
2016-10-14ND
2017-01-03ND
2017-01-03ND
2017-01-03ND
2017-01-17ND
2017-01-23ND
2017-04-03ND
2017-04-03ND
2017-04-05ND
2017-04-05ND
2017-04-10ND
2017-07-03ND
2017-07-10ND
2017-07-10ND
2017-07-10ND
2017-07-10ND
2017-10-03ND
2017-10-03ND
2017-10-03ND
2017-10-03ND
2017-10-05ND