Know Your Environment. Protect Your Health.

Haloacetic acids (HAA5)

New Britain 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.

 

206

Samples

0

Samples exceeding legal limit (MCL)

206

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201811.3 ppb33334.60 ppb - 17.8 ppb
20199.14 ppb32323.50 ppb - 19.0 ppb
20207.15 ppb35350.800 ppb - 11.2 ppb
202110.4 ppb40403.90 ppb - 15.9 ppb
202210.2 ppb34341.52 ppb - 17.7 ppb
202310.2 ppb32323.74 ppb - 29.3 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-02-22DBP 2004885808.50 ppb
2018-02-22DBP 2004885817.20 ppb
2018-02-22DBP 2004885829.50 ppb
2018-02-22DBP 20048858310.00 ppb
2018-02-22DBP 2004885848.60 ppb
2018-02-22DBP 20048858511.2 ppb
2018-02-22DBP 20048858613.9 ppb
2018-02-22DBP 20048858712.1 ppb
2018-05-16DBP 2004948889.20 ppb
2018-05-16DBP 2004948898.10 ppb
2018-05-16DBP 20049489010.6 ppb
2018-05-16DBP 20049489111.9 ppb
2018-05-16DBP 2004948929.50 ppb
2018-05-16DBP 2004948939.60 ppb
2018-05-16DBP 20049489412.6 ppb
2018-05-16DBP 20049489512.3 ppb
2018-08-14DBP 20050230017.8 ppb
2018-08-14DBP 20050230116.1 ppb
2018-08-14DBP 20050230217.6 ppb
2018-08-14DBP 20050230317.5 ppb
2018-08-14DBP 20050230417.0 ppb
2018-08-14DBP 2005023059.50 ppb
2018-08-14DBP 20050230610.7 ppb
2018-08-14DBP 2005023074.60 ppb
2018-11-14DBP 20051264511.4 ppb
2018-11-14DBP 20051264610.4 ppb
2018-11-14DBP 20051264713.1 ppb
2018-11-14DBP 20051264811.3 ppb
2018-11-14DBP 20051264912.0 ppb
2018-11-14DBP 2005126506.80 ppb
2018-11-14DBP 2005126519.40 ppb
2018-11-14DBP 20051265212.2 ppb
2018-11-14DBP 20051265411.6 ppb
2019-02-20DBP 2005222975.60 ppb
2019-02-20DBP 2005222985.20 ppb
2019-02-20DBP 2005222997.70 ppb
2019-02-20DBP 2005223008.00 ppb
2019-02-20DBP 2005223016.10 ppb
2019-02-20DBP 2005223026.80 ppb
2019-02-20DBP 2005223038.30 ppb
2019-02-20DBP 2005223046.90 ppb
2019-05-16DBP 2005325625.50 ppb
2019-05-16DBP 2005325634.60 ppb
2019-05-16DBP 2005325646.10 ppb
2019-05-16DBP 2005325655.80 ppb
2019-05-16DBP 2005325666.50 ppb
2019-05-16DBP 2005325673.50 ppb
2019-05-16DBP 2005325686.10 ppb
2019-05-16DBP 2005325697.60 ppb
2019-08-20DBP 20054557419.0 ppb
2019-08-20DBP 20054557513.1 ppb
2019-08-20DBP 20054557617.2 ppb
2019-08-20DBP 20054557718.0 ppb
2019-08-20DBP 20054557818.2 ppb
2019-08-20DBP 20054557914.3 ppb
2019-08-20DBP 20054558015.1 ppb
2019-08-20DBP 2005455813.90 ppb
2019-11-21DBP 2005576898.20 ppb
2019-11-21DBP 2005576907.00 ppb
2019-11-21DBP 2005576919.40 ppb
2019-11-21DBP 20055769210.4 ppb
2019-11-21DBP 2005576939.80 ppb
2019-11-21DBP 2005576947.70 ppb
2019-11-21DBP 20055769510.9 ppb
2019-11-21DBP 20055769610.00 ppb
2020-02-20DBP 2005669344.50 ppb
2020-02-20DBP 2005669354.40 ppb
2020-02-20DBP 2005669366.30 ppb
2020-02-20DBP 2005669376.80 ppb
2020-02-20DBP 2005669384.80 ppb
2020-02-20DBP 2005669397.50 ppb
2020-02-20DBP 2005669408.40 ppb
2020-02-20DBP 2005669416.50 ppb
2020-02-20DBP 2005669444.40 ppb
2020-05-13DBP 2005755418.00 ppb
2020-05-13DBP 2005755428.00 ppb
2020-05-13DBP 20057554310.8 ppb
2020-05-13DBP 2005755448.80 ppb
2020-05-13DBP 20057554510.3 ppb
2020-05-13DBP 2005755464.10 ppb
2020-05-13DBP 2005755479.80 ppb
2020-05-13DBP 2005755482.10 ppb
2020-08-11DBP 2005859189.80 ppb
2020-08-11DBP 20058591910.00 ppb
2020-08-11DBP 20058592011.2 ppb
2020-08-11DBP 20058592111.1 ppb
2020-08-11DBP 20058592210.5 ppb
2020-08-11DBP 2005859234.00 ppb
2020-08-11DBP 2005859249.80 ppb
2020-08-11DBP 2005859250.800 ppb
2020-08-11DBP 2005859688.30 ppb
2020-11-18DBP 2005986545.70 ppb
2020-11-18DBP 2005986554.90 ppb
2020-11-18DBP 2005986568.00 ppb
2020-11-18DBP 2005986577.00 ppb
2020-11-18DBP 2005986586.40 ppb
2020-11-18DBP 2005986596.50 ppb
2020-11-18DBP 2005986608.60 ppb
2020-11-18DBP 2005986616.90 ppb
2020-11-18DBP 2005986625.10 ppb
2021-02-17DBP 2006070675.70 ppb
2021-02-17DBP 2006070685.30 ppb
2021-02-17DBP 2006070696.40 ppb
2021-02-17DBP 2006070707.00 ppb
2021-02-17DBP 2006070718.70 ppb
2021-02-17DBP 2006070727.80 ppb
2021-02-17DBP 2006070738.40 ppb
2021-02-17DBP 2006070747.40 ppb
2021-05-20DBP 2006180154.40 ppb
2021-05-20DBP 2006180163.90 ppb
2021-05-20DBP 2006180177.90 ppb
2021-05-20DBP 2006180185.60 ppb
2021-05-20DBP 2006180194.30 ppb
2021-05-20DBP 2006180204.80 ppb
2021-05-20DBP 2006180215.60 ppb
2021-05-20DBP 2006180225.50 ppb
2021-08-11DBP 20062813013.0 ppb
2021-08-11DBP 20062813112.2 ppb
2021-08-11DBP 20062813215.6 ppb
2021-08-11DBP 20062813315.8 ppb
2021-08-11DBP 20062813415.4 ppb
2021-08-11DBP 20062813513.5 ppb
2021-08-11DBP 20062813612.4 ppb
2021-08-11DBP 20062813714.8 ppb
2021-11-17D300103908 30010390912.5 ppb
2021-11-17D300103911 30010391211.3 ppb
2021-11-17D300103914 30010391515.9 ppb
2021-11-17D300103917 30010391812.3 ppb
2021-11-17D300103920 30010392115.1 ppb
2021-11-17D300103923 30010392411.3 ppb
2021-11-17D300103926 30010392712.5 ppb
2021-11-17D300103929 30010393011.7 ppb
2021-11-17P300103908 30010390912.5 ppb
2021-11-17P300103911 30010391211.3 ppb
2021-11-17P300103914 30010391515.9 ppb
2021-11-17P300103917 30010391812.3 ppb
2021-11-17P300103920 30010392115.1 ppb
2021-11-17P300103923 30010392411.3 ppb
2021-11-17P300103926 30010392712.5 ppb
2021-11-17P300103929 30010393011.7 ppb
2022-02-15D300145868 3001458695.24 ppb
2022-02-15D300145871 3001458724.34 ppb
2022-02-15D300145874 3001458756.47 ppb
2022-02-15D300145877 3001458787.27 ppb
2022-02-15D300145880 3001458815.68 ppb
2022-02-15D300145883 3001458848.22 ppb
2022-02-15D300145886 3001458878.59 ppb
2022-02-15D300145889 3001458907.18 ppb
2022-02-15D300145892 3001458931.52 ppb
2022-05-10D300181521 30018152211.2 ppb
2022-05-10D300181524 30018152510.7 ppb
2022-05-10D300181527 30018152813.0 ppb
2022-05-10D300181530 30018153113.6 ppb
2022-05-10D300181533 30018153411.6 ppb
2022-05-10D300181536 3001815379.26 ppb
2022-05-10D300181539 30018154012.0 ppb
2022-05-10D300181542 30018154312.3 ppb
2022-05-10D300181545 30018154610.5 ppb
2022-08-09D300227257 30022725814.3 ppb
2022-08-09D300227260 30022726112.9 ppb
2022-08-09D300227263 30022726417.7 ppb
2022-08-09D300227266 30022726717.1 ppb
2022-08-09D300227269 30022727017.1 ppb
2022-08-09D300227272 30022727313.2 ppb
2022-08-09D300227275 30022727614.6 ppb
2022-08-09D300227278 3002272798.85 ppb
2022-11-15D300273443 30027344511.0 ppb
2022-11-15D300273450 30027345211.9 ppb
2022-11-15D300273456 30027346011.0 ppb
2022-11-15D300273462 3002734638.38 ppb
2022-11-15D300273465 30027346610.6 ppb
2022-11-15D300273468 3002734696.62 ppb
2022-11-15D300273471 3002734725.59 ppb
2022-11-15D300273474 3002734757.45 ppb
2023-02-09D300307705 3003077065.47 ppb
2023-02-09D300307708 3003077095.14 ppb
2023-02-09D300307711 3003077128.17 ppb
2023-02-09D300307714 3003077156.97 ppb
2023-02-09D300307717 30030771810.6 ppb
2023-02-09D300307720 3003077217.30 ppb
2023-02-09D300307723 3003077246.43 ppb
2023-02-09D300307726 3003077275.54 ppb
2023-05-11D300349330 3003493319.38 ppb
2023-05-11D300349333 3003493348.32 ppb
2023-05-11D300349336 30034933715.9 ppb
2023-05-11D300349339 3003493407.64 ppb
2023-05-11D300349342 3003493439.69 ppb
2023-05-11D300349345 3003493466.37 ppb
2023-05-11D300349348 30034934910.8 ppb
2023-05-11D300349351 3003493527.23 ppb
2023-08-16D300399298 30039929915.1 ppb
2023-08-16D300399301 30039930214.3 ppb
2023-08-16D300399304 30039930529.3 ppb
2023-08-16D300399307 30039930815.0 ppb
2023-08-16D300399310 30039931116.5 ppb
2023-08-16D300399313 3003993148.06 ppb
2023-08-16D300399316 30039931710.4 ppb
2023-08-16D300399319 3003993203.74 ppb
2023-11-16D300447192 30044719312.4 ppb
2023-11-16D300447195 30044719612.0 ppb
2023-11-16D300447198 30044719912.4 ppb
2023-11-16D300447201 3004472028.51 ppb
2023-11-16D300447204 30044720513.1 ppb
2023-11-16D300447207 3004472087.33 ppb
2023-11-16D300447210 3004472118.48 ppb
2023-11-16D300447213 3004472147.34 ppb