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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

City of Jasper

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.213 ppb163ND - 1.20 ppb
20150.0625 ppb161ND - 1.000 ppb
20160.519 ppb166ND - 2.20 ppb
20170.975 ppb167ND - 3.50 ppb
20180.181 ppb162ND - 1.70 ppb
20190.0625 ppb161ND - 1.000 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
2014-03-04AC45463ND
2014-03-04AC45467ND
2014-03-04AC45464ND
2014-03-04AC45461ND
2014-06-17AC571811.20 ppb
2014-06-17AC57158ND
2014-06-17AC57159ND
2014-06-17AC571771.20 ppb
2014-09-16AC67146ND
2014-09-16AC67154ND
2014-09-16AC67160ND
2014-09-16AC671441.000 ppb
2014-12-18AC75433ND
2014-12-18AC75438ND
2014-12-18AC75442ND
2014-12-18AC75441ND
2015-02-02AC78734ND
2015-02-02AC78681ND
2015-02-02AC78685ND
2015-02-02AC78683ND
2015-06-10AC95384ND
2015-06-10AC95388ND
2015-06-10AC95393ND
2015-06-10AC95387ND
2015-07-16AC99882ND
2015-07-16AC99877ND
2015-07-16AC99885ND
2015-07-16AC99892ND
2015-11-23AD14393ND
2015-11-23AD14394ND
2015-11-23AD14399ND
2015-11-23AD143741.000 ppb
2016-02-16AD236121.30 ppb
2016-02-16AD236131.000 ppb
2016-02-16AD23619ND
2016-02-16AD236111.000 ppb
2016-05-09AD35816ND
2016-05-09AD35803ND
2016-05-09AD357941.50 ppb
2016-05-09AD35814ND
2016-09-07AD48354ND
2016-09-07AD48346ND
2016-09-07AD483662.20 ppb
2016-09-07AD48361ND
2016-10-11AD52970ND
2016-10-11AD52973ND
2016-10-11AD52954ND
2016-10-11AD529551.30 ppb
2017-03-07AD73684ND
2017-03-07AD73683ND
2017-03-07AD73685ND
2017-03-07AD73688ND
2017-04-03AD782413.50 ppb
2017-04-03AD78239ND
2017-04-03AD782433.30 ppb
2017-04-03AD782422.10 ppb
2017-07-17AD894531.80 ppb
2017-07-17AD894551.40 ppb
2017-07-17AD89454ND
2017-07-17AD89451ND
2017-10-10AE00083ND
2017-10-10AE00088ND
2017-10-10AE000802.40 ppb
2017-10-10AE000791.10 ppb
2018-02-13AE13530ND
2018-02-13AE13532ND
2018-02-13AE13531ND
2018-02-13AE13533ND
2018-05-21AE269921.20 ppb
2018-05-21AE269941.70 ppb
2018-05-21AE26993ND
2018-05-21AE26995ND
2018-07-18AE33781ND
2018-07-18AE33765ND
2018-07-18AE33783ND
2018-07-18AE33784ND
2018-10-15AE43418ND
2018-10-15AE43417ND
2018-10-15AE43419ND
2018-10-15AE43422ND
2019-02-19AE54820ND
2019-02-19AE54824ND
2019-02-19AE54821ND
2019-02-19AE54823ND
2019-04-02AE60818ND
2019-04-02AE60814ND
2019-04-02AE60815ND
2019-04-02AE60816ND
2019-09-16AE83510ND
2019-09-16AE83517ND
2019-09-16AE835151.000 ppb
2019-09-16AE83514ND
2019-11-18AE89530ND
2019-11-18AE89525ND
2019-11-18AE89532ND
2019-11-18AE89529ND