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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

East Orange Water Commission

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)

116

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
201429.4 ppb32328.90 ppb - 50.0 ppb
201537.3 ppb32328.00 ppb - 54.0 ppb
201632.7 ppb3231ND - 57.6 ppb
20174.02 ppb324ND - 44.6 ppb
20180.412 ppb329ND - 3.92 ppb
20190.363 ppb328ND - 2.20 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
2014-02-2714030488-00830.3 ppb
2014-02-2714030488-00720.6 ppb
2014-02-2714030488-00633.3 ppb
2014-02-2714030488-00531.0 ppb
2014-02-2714030488-00434.4 ppb
2014-02-2714030488-00333.9 ppb
2014-02-2714030488-00233.1 ppb
2014-02-2714030488-00133.4 ppb
2014-05-3014060282-00849.1 ppb
2014-05-3014060282-00744.1 ppb
2014-05-3014060282-00648.3 ppb
2014-05-3014060282-00548.0 ppb
2014-05-3014060282-00449.0 ppb
2014-05-3014060282-00350.0 ppb
2014-05-3014060282-00247.2 ppb
2014-05-3014060282-00150.0 ppb
2014-08-291435354-0125.0 ppb
2014-08-291435354-028.97 ppb
2014-08-291435354-0324.4 ppb
2014-08-291435354-0412.0 ppb
2014-08-291435354-0523.8 ppb
2014-08-291435354-0624.3 ppb
2014-08-291435354-0716.4 ppb
2014-08-291435354-0821.2 ppb
2014-11-261447035-0121.5 ppb
2014-11-261447035-0217.6 ppb
2014-11-261447035-0322.8 ppb
2014-11-261447035-0419.9 ppb
2014-11-261447035-058.90 ppb
2014-11-261447035-0620.3 ppb
2014-11-261447035-0717.6 ppb
2014-11-261447035-0820.2 ppb
2015-02-261507504-0827.9 ppb
2015-02-261507504-0727.7 ppb
2015-02-261507504-0628.2 ppb
2015-02-261507504-0527.1 ppb
2015-02-261507504-0431.6 ppb
2015-02-261507504-0326.4 ppb
2015-02-261507504-028.00 ppb
2015-02-261507504-0130.9 ppb
2015-05-271505L41-00851.0 ppb
2015-05-271505L41-00744.0 ppb
2015-05-271505L41-00648.0 ppb
2015-05-271505L41-00532.3 ppb
2015-05-271505L41-00449.2 ppb
2015-05-271505L41-00347.7 ppb
2015-05-271505L41-00236.2 ppb
2015-05-271505L41-00146.0 ppb
2015-08-271508M85-00852.1 ppb
2015-08-271508M85-00744.6 ppb
2015-08-271508M85-00648.8 ppb
2015-08-271508M85-00548.8 ppb
2015-08-271508M85-00454.0 ppb
2015-08-271508M85-00350.7 ppb
2015-08-271508M85-00230.3 ppb
2015-08-271508M85-00152.2 ppb
2015-11-305110804-0835.3 ppb
2015-11-305110804-0728.9 ppb
2015-11-305110804-0633.0 ppb
2015-11-305110804-0530.0 ppb
2015-11-305110804-0436.3 ppb
2015-11-305110804-0331.6 ppb
2015-11-305110804-0220.9 ppb
2015-11-305110804-0133.1 ppb
2016-02-296020735-0831.8 ppb
2016-02-296020735-0731.1 ppb
2016-02-296020735-0631.6 ppb
2016-02-296020735-0528.3 ppb
2016-02-296020735-0431.3 ppb
2016-02-296020735-0331.1 ppb
2016-02-296020735-0227.5 ppb
2016-02-296020735-0132.0 ppb
2016-05-316050904-0831.9 ppb
2016-05-316050904-0730.6 ppb
2016-05-316050904-0631.5 ppb
2016-05-316050904-0528.2 ppb
2016-05-316050904-0434.0 ppb
2016-05-316050904-0330.5 ppb
2016-05-316050904-0226.7 ppb
2016-05-316050904-0139.6 ppb
2016-08-306080942-0847.5 ppb
2016-08-306080942-0727.9 ppb
2016-08-306080942-0657.0 ppb
2016-08-306080942-0550.2 ppb
2016-08-306080942-0447.7 ppb
2016-08-306080942-0357.6 ppb
2016-08-306080942-0219.0 ppb
2016-08-306080942-0141.6 ppb
2016-11-176110559-0832.1 ppb
2016-11-176110559-07ND
2016-11-176110559-0631.7 ppb
2016-11-176110559-0529.5 ppb
2016-11-176110559-0432.1 ppb
2016-11-176110559-0329.7 ppb
2016-11-176110559-0218.8 ppb
2016-11-176110559-0126.4 ppb
2017-02-227020603-08ND
2017-02-227020603-07ND
2017-02-227020603-0640.9 ppb
2017-02-227020603-05ND
2017-02-227020603-04ND
2017-02-227020603-03ND
2017-02-227020603-02ND
2017-02-227020603-01ND
2017-05-257050898-08ND
2017-05-257050898-07ND
2017-05-257050898-06ND
2017-05-257050898-05ND
2017-05-257050898-04ND
2017-05-257050898-03ND
2017-05-257050898-02ND
2017-05-257050898-01ND
2017-08-297081023-0830.8 ppb
2017-08-297081023-07ND
2017-08-297081023-0644.6 ppb
2017-08-297081023-05ND
2017-08-297081023-04ND
2017-08-297081023-0312.5 ppb
2017-08-297081023-02ND
2017-08-297081023-01ND
2017-11-307111015-08ND
2017-11-307111015-07ND
2017-11-307111015-06ND
2017-11-307111015-05ND
2017-11-307111015-04ND
2017-11-307111015-03ND
2017-11-307111015-02ND
2017-11-307111015-01ND
2018-02-288020863-08ND
2018-02-288020863-07ND
2018-02-288020863-06ND
2018-02-288020863-05ND
2018-02-288020863-04ND
2018-02-288020863-03ND
2018-02-288020863-02ND
2018-02-288020863-01ND
2018-05-308051193-081.03 ppb
2018-05-308051193-071.39 ppb
2018-05-308051193-063.92 ppb
2018-05-308051193-051.06 ppb
2018-05-308051193-040.780 ppb
2018-05-308051193-031.03 ppb
2018-05-308051193-021.42 ppb
2018-05-308051193-011.27 ppb
2018-08-228080907-08ND
2018-08-228080907-07ND
2018-08-228080907-06ND
2018-08-228080907-051.28 ppb
2018-08-228080907-04ND
2018-08-228080907-03ND
2018-08-228080907-02ND
2018-08-228080907-01ND
2018-11-218110847-08ND
2018-11-218110847-07ND
2018-11-218110847-06ND
2018-11-218110847-05ND
2018-11-218110847-04ND
2018-11-218110847-03ND
2018-11-218110847-02ND
2018-11-218110847-01ND
2019-03-079030255-08ND
2019-03-079030255-07ND
2019-03-079030255-06ND
2019-03-079030255-05ND
2019-03-079030255-04ND
2019-03-079030255-03ND
2019-03-079030255-02ND
2019-03-079030255-01ND
2019-05-319051348-08ND
2019-05-319051348-07ND
2019-05-319051348-06ND
2019-05-319051348-05ND
2019-05-319051348-04ND
2019-05-319051348-03ND
2019-05-319051348-02ND
2019-05-319051348-01ND
2019-08-309081507-08ND
2019-08-309081507-07ND
2019-08-309081507-06ND
2019-08-309081507-05ND
2019-08-309081507-04ND
2019-08-309081507-03ND
2019-08-309081507-02ND
2019-08-309081507-01ND
2019-11-279111208-082.20 ppb
2019-11-279111208-071.49 ppb
2019-11-279111208-061.65 ppb
2019-11-279111208-051.78 ppb
2019-11-279111208-040.580 ppb
2019-11-279111208-031.40 ppb
2019-11-279111208-021.26 ppb
2019-11-279111208-011.25 ppb