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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

Albany

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.

MORE ABOUT THIS CONTAMINANT

 

192

Samples

0

Samples exceeding legal limit (MCL)

64

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.734 ppb328ND - 5.80 ppb
20150.675 ppb3213ND - 2.40 ppb
20160.591 ppb329ND - 4.90 ppb
20170.822 ppb3212ND - 4.90 ppb
20180.909 ppb328ND - 5.10 ppb
20191.17 ppb3214ND - 4.60 ppb

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 one-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

Date Lab ID Result
2014-02-11AI280551.80 ppb
2014-02-11AI28056ND
2014-02-11AI280571.30 ppb
2014-02-11AI28058ND
2014-02-11AI28059ND
2014-02-11AI28060ND
2014-02-11AI28061ND
2014-02-11AI28062ND
2014-05-07AI40226ND
2014-05-07AI40227ND
2014-05-07AI40228ND
2014-05-07AI402293.00 ppb
2014-05-07AI40230ND
2014-05-07AI40231ND
2014-05-07AI40232ND
2014-05-07AI40233ND
2014-08-11AI496564.90 ppb
2014-08-11AI496573.60 ppb
2014-08-11AI496585.80 ppb
2014-08-11AI49659ND
2014-08-11AI49660ND
2014-08-11AI49661ND
2014-08-11AI49662ND
2014-08-11AI49663ND
2014-11-13AI595971.70 ppb
2014-11-13AI59598ND
2014-11-13AI595991.40 ppb
2014-11-13AI59600ND
2014-11-13AI59601ND
2014-11-13AI59602ND
2014-11-13AI59603ND
2014-11-13AI59604ND
2015-02-10AI648651.80 ppb
2015-02-10AI648661.40 ppb
2015-02-10AI648671.40 ppb
2015-02-10AI64868ND
2015-02-10AI64869ND
2015-02-10AI64870ND
2015-02-10AI64871ND
2015-02-10AI64872ND
2015-05-11AI770371.70 ppb
2015-05-11AI77038ND
2015-05-11AI770391.70 ppb
2015-05-11AI77040ND
2015-05-11AI77041ND
2015-05-11AI77042ND
2015-05-11AI77043ND
2015-05-11AI77044ND
2015-08-11AI863812.00 ppb
2015-08-11AI863821.90 ppb
2015-08-11AI863832.40 ppb
2015-08-11AI863841.10 ppb
2015-08-11AI86385ND
2015-08-11AI86386ND
2015-08-11AI86387ND
2015-08-11AI86388ND
2015-11-10AJ009302.00 ppb
2015-11-10AJ009311.20 ppb
2015-11-10AJ009321.80 ppb
2015-11-10AJ009331.20 ppb
2015-11-10AJ00934ND
2015-11-10AJ00935ND
2015-11-10AJ00936ND
2015-11-10AJ00937ND
2016-02-10AJ06378ND
2016-02-10AJ06379ND
2016-02-10AJ06380ND
2016-02-10AJ06381ND
2016-02-10AJ06382ND
2016-02-10AJ06383ND
2016-02-10AJ06384ND
2016-02-10AJ06385ND
2016-05-10AJ120842.10 ppb
2016-05-10AJ120851.70 ppb
2016-05-10AJ120861.60 ppb
2016-05-10AJ12087ND
2016-05-10AJ12088ND
2016-05-10AJ12089ND
2016-05-10AJ12090ND
2016-05-10AJ12091ND
2016-08-08AJ220071.50 ppb
2016-08-08AJ220081.30 ppb
2016-08-08AJ220091.40 ppb
2016-08-08AJ22010ND
2016-08-08AJ22011ND
2016-08-08AJ22012ND
2016-08-08AJ22013ND
2016-08-08AJ22014ND
2016-11-08AJ333004.90 ppb
2016-11-08AJ333012.30 ppb
2016-11-08AJ333022.10 ppb
2016-11-08AJ33303ND
2016-11-08AJ33304ND
2016-11-08AJ33305ND
2016-11-08AJ33306ND
2016-11-08AJ33307ND
2017-02-08AJ462321.50 ppb
2017-02-08AJ462331.90 ppb
2017-02-08AJ462341.60 ppb
2017-02-08AJ46235ND
2017-02-08AJ46236ND
2017-02-08AJ46237ND
2017-02-08AJ46238ND
2017-02-08AJ46239ND
2017-05-09AJ552261.50 ppb
2017-05-09AJ552271.60 ppb
2017-05-09AJ552281.70 ppb
2017-05-09AJ55229ND
2017-05-09AJ55230ND
2017-05-09AJ55231ND
2017-05-09AJ55232ND
2017-05-09AJ55233ND
2017-08-09AJ639204.90 ppb
2017-08-09AJ639212.00 ppb
2017-08-09AJ639222.10 ppb
2017-08-09AJ63923ND
2017-08-09AJ63924ND
2017-08-09AJ63925ND
2017-08-09AJ63926ND
2017-08-09AJ63927ND
2017-11-07AJ736703.10 ppb
2017-11-07AJ736713.00 ppb
2017-11-07AJ736721.40 ppb
2017-11-07AJ73673ND
2017-11-07AJ73674ND
2017-11-07AJ73675ND
2017-11-07AJ73676ND
2017-11-07AJ73677ND
2018-02-06AJ835041.60 ppb
2018-02-06AJ83505ND
2018-02-06AJ83506ND
2018-02-06AJ83507ND
2018-02-06AJ83508ND
2018-02-06AJ83509ND
2018-02-06AJ83510ND
2018-02-06AJ83511ND
2018-05-09AJ893423.50 ppb
2018-05-09AJ89343ND
2018-05-09AJ89344ND
2018-05-09AJ89345ND
2018-05-09AJ89346ND
2018-05-09AJ89347ND
2018-05-09AJ89348ND
2018-05-09AJ89349ND
2018-08-07AJ973875.10 ppb
2018-08-07AJ973884.20 ppb
2018-08-07AJ973893.50 ppb
2018-08-07AJ97390ND
2018-08-07AJ97391ND
2018-08-07AJ97392ND
2018-08-07AJ97393ND
2018-08-07AJ97394ND
2018-11-12AK060873.40 ppb
2018-11-12AK060884.70 ppb
2018-11-12AK060893.10 ppb
2018-11-12AK06090ND
2018-11-12AK06091ND
2018-11-12AK06092ND
2018-11-12AK06093ND
2018-11-12AK06094ND
2019-02-12AK113363.30 ppb
2019-02-12AK113372.70 ppb
2019-02-12AK113381.50 ppb
2019-02-12AK11339ND
2019-02-12AK11340ND
2019-02-12AK11341ND
2019-02-12AK11342ND
2019-02-12AK11343ND
2019-05-06AK167842.70 ppb
2019-05-06AK167851.80 ppb
2019-05-06AK167862.30 ppb
2019-05-06AK16787ND
2019-05-06AK16788ND
2019-05-21AK181901.10 ppb
2019-05-21AK18191ND
2019-05-21AK18192ND
2019-08-13AK262844.20 ppb
2019-08-13AK262854.60 ppb
2019-08-13AK262862.30 ppb
2019-08-13AK26287ND
2019-08-13AK26288ND
2019-08-13AK26289ND
2019-08-13AK26290ND
2019-08-13AK26291ND
2019-11-11AK366153.50 ppb
2019-11-11AK366162.90 ppb
2019-11-11AK366172.90 ppb
2019-11-11AK366181.70 ppb
2019-11-11AK36619ND
2019-11-11AK36620ND
2019-11-11AK36621ND
2019-11-11AK36622ND