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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

Pemberton Twp Department Main

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)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.11 ppb164ND - 15.4 ppb
20151.23 ppb1612ND - 15.4 ppb
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-03-04L4899060-3ND
2014-03-04L4899060-1ND
2014-03-04L4899060-2ND
2014-03-04L4899060-4ND
2014-06-03L5017832-2ND
2014-06-03L5017832-3ND
2014-06-03L5017832-1ND
2014-06-03L5017832-4ND
2014-09-02L5205113-2ND
2014-09-02L5205113-3ND
2014-09-02L5205113-1ND
2014-09-02L5205113-4ND
2014-12-02L5286681-30.520 ppb
2014-12-02L5286681-20.540 ppb
2014-12-02L5286681-11.30 ppb
2014-12-02L5286681-415.4 ppb
2015-03-03L5408301-4ND
2015-03-03L5408301-2ND
2015-03-03L5408301-1ND
2015-03-03L5408301-3ND
2015-06-02L5540190-415.4 ppb
2015-06-02L5540190-10.500 ppb
2015-06-02L5540190-20.400 ppb
2015-06-02L5540190-30.330 ppb
2015-09-01L5762237-40.300 ppb
2015-09-01L5762237-10.320 ppb
2015-09-01L5762237-20.430 ppb
2015-09-01L5762237-30.460 ppb
2015-12-01L5863625-10.410 ppb
2015-12-01L5863625-40.380 ppb
2015-12-01L5863625-20.350 ppb
2015-12-01L5863625-30.380 ppb
2016-03-013413331ND
2016-03-013413329ND
2016-03-013413330ND
2016-03-083413332ND
2016-06-073468959ND
2016-06-073468961ND
2016-06-073468962ND
2016-06-073468960ND
2016-09-063541692ND
2016-09-063541694ND
2016-09-063541695ND
2016-09-063541693ND
2016-12-063601431ND
2016-12-063601430ND
2016-12-063601433ND
2016-12-063601432ND
2017-03-073651298ND
2017-03-073651296ND
2017-03-073651299ND
2017-03-073651297ND
2017-06-063708424ND
2017-06-063708423ND
2017-06-063708422ND
2017-06-123712359ND
2017-09-063774024ND
2017-09-063774022ND
2017-09-063774023ND
2017-09-063774025ND
2017-12-053833812ND
2017-12-053833814ND
2017-12-053833813ND
2017-12-053833811ND
2018-03-063887188ND
2018-03-063887185ND
2018-03-063887186ND
2018-03-063887187ND
2018-06-053955644ND
2018-06-053955641ND
2018-06-053955643ND
2018-06-053955642ND
2018-09-044045773ND
2018-09-044045772ND
2018-09-044045774ND
2018-09-044045771ND
2018-12-044143171ND
2018-12-044143170ND
2018-12-044143172ND
2018-12-044143169ND
2019-03-054220232ND
2019-03-054220235ND
2019-03-054220233ND
2019-03-054220234ND
2019-06-044318403ND
2019-06-044318402ND
2019-06-044318400ND
2019-06-044318401ND
2019-09-034411343ND
2019-09-034411340ND
2019-09-034411341ND
2019-09-034411342ND
2019-12-034505953ND
2019-12-034505954ND
2019-12-034505955ND
2019-12-034505956ND