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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

Millville Water Department

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

 

95

Samples

0

Samples exceeding legal limit (MCL)

29

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.347 ppb165ND - 1.53 ppb
20151.14 ppb1615ND - 2.14 ppb
20160.0688 ppb161ND - 1.10 ppb
2017ND150ND
20180.469 ppb164ND - 2.46 ppb
20191.04 ppb164ND - 5.16 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
2014-03-19L4868638-3ND
2014-03-19L4868638-1ND
2014-03-19L4868638-2ND
2014-03-19L4868638-4ND
2014-06-18L4982860-2ND
2014-06-18L4982860-3ND
2014-06-18L4982860-1ND
2014-06-18L4982860-4ND
2014-09-17L5111385-1ND
2014-09-17L5111385-31.01 ppb
2014-09-17L5111385-4ND
2014-09-17L5111385-2ND
2014-11-18L5236424-11.53 ppb
2014-11-18L5236424-41.17 ppb
2014-11-18L5236424-30.690 ppb
2014-11-18L5236424-21.15 ppb
2015-03-18L5458071-20.360 ppb
2015-03-18L5458071-1ND
2015-03-18L5458071-40.650 ppb
2015-03-18L5458071-30.700 ppb
2015-06-17L5328049-41.42 ppb
2015-06-17L5328049-11.14 ppb
2015-06-17L5328049-32.12 ppb
2015-06-17L5328049-21.54 ppb
2015-09-16L5779131-21.10 ppb
2015-09-16L5779131-10.410 ppb
2015-09-16L5779131-41.88 ppb
2015-09-16L5779131-31.64 ppb
2015-12-16L5595174-31.21 ppb
2015-12-16L5595174-21.17 ppb
2015-12-16L5595174-10.750 ppb
2015-12-16L5595174-42.14 ppb
2016-03-153416585ND
2016-03-153416586ND
2016-03-153416583ND
2016-03-153416584ND
2016-06-153473243ND
2016-06-153473241ND
2016-06-153473242ND
2016-06-153473244ND
2016-09-133544989ND
2016-09-1335449911.10 ppb
2016-09-133544990ND
2016-09-133544992ND
2016-12-143605576ND
2016-12-143605578ND
2016-12-143605579ND
2016-12-143605577ND
2017-03-133654319ND
2017-03-133654317ND
2017-03-133654318ND
2017-03-133654316ND
2017-06-143714739ND
2017-06-143714737ND
2017-06-143714738ND
2017-06-143714736ND
2017-09-123777228ND
2017-09-123777229ND
2017-09-123777231ND
2017-09-123777230ND
2017-12-133839535ND
2017-12-133839538ND
2017-12-133839537ND
2018-03-08380309020ND
2018-03-08380309022ND
2018-03-083803090161.44 ppb
2018-03-08380309018ND
2018-06-053806071141.87 ppb
2018-06-05380607116ND
2018-06-05380607118ND
2018-06-053806071121.73 ppb
2018-09-06380906703ND
2018-09-06380906705ND
2018-09-06380906707ND
2018-09-063809067012.46 ppb
2018-12-07381207703.2ND
2018-12-07381207702.2ND
2018-12-07381207700.2ND
2018-12-07381207701.2ND
2019-03-07390307717.2ND
2019-03-07390307720.25.16 ppb
2019-03-07390307719.2ND
2019-03-07390307718.2ND
2019-06-06390606701.2ND
2019-06-06390606700.24.65 ppb
2019-06-06390606703.2ND
2019-06-06390606702.2ND
2019-09-05390906703ND
2019-09-053909067011.82 ppb
2019-09-05390906702ND
2019-09-053909067004.99 ppb
2019-12-05391205700.1AND
2019-12-05391205701.1AND
2019-12-05391205703.1AND
2019-12-05391205702.1AND