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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

Hammonton 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

 

100

Samples

0

Samples exceeding legal limit (MCL)

32

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.0863 ppb162ND - 0.740 ppb
20150.639 ppb1614ND - 1.37 ppb
20160.131 ppb162ND - 1.10 ppb
2017ND160ND
20180.394 ppb164ND - 1.82 ppb
20191.31 ppb2010ND - 5.20 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
2014-01-08L4869099-3ND
2014-01-08L4869099-4ND
2014-01-08L4869099-1ND
2014-01-08L4869099-2ND
2014-04-09L4983385-4ND
2014-04-09L4983385-1ND
2014-04-09L4983385-3ND
2014-04-09L4983385-2ND
2014-07-09L5112176-4ND
2014-07-09L5112176-1ND
2014-07-09L5112176-3ND
2014-07-09L5112176-2ND
2014-10-08L5247334-1ND
2014-10-08L5247334-4ND
2014-10-08L5247334-30.640 ppb
2014-10-08L5247334-20.740 ppb
2015-01-07L5364265-20.910 ppb
2015-01-07L5364265-40.460 ppb
2015-01-07L5364265-30.570 ppb
2015-01-07L5364265-10.960 ppb
2015-04-08L5497322-20.750 ppb
2015-04-08L5497322-30.650 ppb
2015-04-08L5497322-4ND
2015-04-08L5497322-10.720 ppb
2015-07-08L5651858-20.320 ppb
2015-07-08L5651858-31.30 ppb
2015-07-08L5651858-4ND
2015-07-08L5651858-10.440 ppb
2015-10-07L5817408-20.390 ppb
2015-10-07L5817408-31.37 ppb
2015-10-07L5817408-40.390 ppb
2015-10-07L5817408-11.000 ppb
2016-01-06L5966336-21.000 ppb
2016-01-06L5966336-4ND
2016-01-06L5966336-1ND
2016-01-06L5966336-31.10 ppb
2016-04-063426312ND
2016-04-063426310ND
2016-04-063426311ND
2016-04-063426313ND
2016-07-063487217ND
2016-07-063487215ND
2016-07-063487216ND
2016-07-063487218ND
2016-10-053561063ND
2016-10-053561061ND
2016-10-053561062ND
2016-10-053561064ND
2017-01-113620513ND
2017-01-113620512ND
2017-01-113620514ND
2017-01-113620511ND
2017-04-053668431ND
2017-04-053668432ND
2017-04-053668430ND
2017-04-073670650ND
2017-07-053726673ND
2017-07-053726675ND
2017-07-053726676ND
2017-07-053726674ND
2017-10-113799708ND
2017-10-113799710ND
2017-10-113799711ND
2017-10-113799709ND
2018-01-103851327ND
2018-01-103851329ND
2018-01-103851328ND
2018-01-103851330ND
2018-04-123913615ND
2018-04-123913616ND
2018-05-233945838ND
2018-05-233945839ND
2018-07-093983525ND
2018-07-093983524ND
2018-07-093983527ND
2018-07-093983526ND
2018-10-10HA101918-141.82 ppb
2018-10-10HA101918-131.52 ppb
2018-10-10HA101918-151.33 ppb
2018-10-10HA101918-121.63 ppb
2019-01-09HA012219-221.27 ppb
2019-01-09HA012219-181.40 ppb
2019-01-09HA012219-201.27 ppb
2019-01-09HA012219-192.60 ppb
2019-04-10HA0418109-085.20 ppb
2019-04-10HA0418109-113.22 ppb
2019-04-10HA0418109-101.06 ppb
2019-04-10HA0418109-095.09 ppb
2019-07-10HA071919-09ND
2019-07-10HA071919-12ND
2019-07-10HA071919-11ND
2019-07-10HA071919-10ND
2019-07-25HA073019-191.99 ppb
2019-07-25HA073019-163.17 ppb
2019-07-25HA073019-17ND
2019-07-25HA073019-18ND
2019-10-09HA101419-06ND
2019-10-09HA101419-07ND
2019-10-09HA101419-08ND
2019-10-09HA101419-09ND