Know Your Environment. Protect Your Health.

Chloroform

New Britain Water Department

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Read More.

In addition to tap water disinfection, chloroform pollution in the environment also comes from industrial discharges from pulp and paper mills, and from urban wastewater effluent. Human studies show that chloroform damages the kidneys, liver and central nervous system. In animals, chloroform causes infertility, birth defects and cancer.

Click here to read more about disinfection byproducts.

 

204

Samples

0

Samples exceeding legal limit (MCL)

204

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201834.4 ppb343416.1 ppb - 64.1 ppb
201930.6 ppb33338.50 ppb - 69.2 ppb
202026.3 ppb36365.80 ppb - 76.3 ppb
202130.4 ppb333310.00 ppb - 61.9 ppb
202233.9 ppb35351.20 ppb - 74.4 ppb
202331.2 ppb33332.70 ppb - 73.9 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.4 ppb

The EWG Health Guideline of 0.4 ppb for chloroform was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-22DBP 20048858018.6 ppb
2018-02-22DBP 20048858116.1 ppb
2018-02-22DBP 20048858223.5 ppb
2018-02-22DBP 20048858324.1 ppb
2018-02-22DBP 20048858420.2 ppb
2018-02-22DBP 20048858536.7 ppb
2018-02-22DBP 20048858637.6 ppb
2018-02-22DBP 20048858728.6 ppb
2018-05-16DBP 20049488822.2 ppb
2018-05-16DBP 20049488918.3 ppb
2018-05-16DBP 20049489025.0 ppb
2018-05-16DBP 20049489128.2 ppb
2018-05-16DBP 20049489223.4 ppb
2018-05-16DBP 20049489339.7 ppb
2018-05-16DBP 20049489438.5 ppb
2018-05-16DBP 20049489533.3 ppb
2018-06-20VOC1 20049753429.3 ppb
2018-08-14DBP 20050230038.6 ppb
2018-08-14DBP 20050230134.5 ppb
2018-08-14DBP 20050230246.5 ppb
2018-08-14DBP 20050230349.2 ppb
2018-08-14DBP 20050230441.7 ppb
2018-08-14DBP 20050230561.8 ppb
2018-08-14DBP 20050230658.0 ppb
2018-08-14DBP 20050230764.1 ppb
2018-11-14DBP 20051264527.0 ppb
2018-11-14DBP 20051264620.4 ppb
2018-11-14DBP 20051264730.7 ppb
2018-11-14DBP 20051264836.0 ppb
2018-11-14DBP 20051264929.0 ppb
2018-11-14DBP 20051265053.3 ppb
2018-11-14DBP 20051265149.4 ppb
2018-11-14DBP 20051265238.8 ppb
2018-11-14DBP 20051265427.2 ppb
2019-02-20DBP 2005222979.30 ppb
2019-02-20DBP 2005222988.50 ppb
2019-02-20DBP 20052229913.2 ppb
2019-02-20DBP 20052230017.2 ppb
2019-02-20DBP 20052230111.8 ppb
2019-02-20DBP 20052230225.5 ppb
2019-02-20DBP 20052230324.8 ppb
2019-02-20DBP 20052230415.6 ppb
2019-05-16DBP 20053256219.5 ppb
2019-05-16DBP 20053256315.8 ppb
2019-05-16DBP 20053256422.8 ppb
2019-05-16DBP 20053256526.2 ppb
2019-05-16DBP 20053256622.1 ppb
2019-05-16DBP 20053256742.6 ppb
2019-05-16DBP 20053256832.6 ppb
2019-05-16DBP 20053256929.5 ppb
2019-06-12VOC1 20053599519.3 ppb
2019-08-20DBP 20054557433.4 ppb
2019-08-20DBP 20054557534.0 ppb
2019-08-20DBP 20054557654.5 ppb
2019-08-20DBP 20054557763.7 ppb
2019-08-20DBP 20054557842.8 ppb
2019-08-20DBP 20054557968.2 ppb
2019-08-20DBP 20054558066.7 ppb
2019-08-20DBP 20054558169.2 ppb
2019-11-21DBP 20055768919.0 ppb
2019-11-21DBP 20055769016.0 ppb
2019-11-21DBP 20055769125.7 ppb
2019-11-21DBP 20055769226.8 ppb
2019-11-21DBP 20055769321.9 ppb
2019-11-21DBP 20055769444.8 ppb
2019-11-21DBP 20055769540.9 ppb
2019-11-21DBP 20055769626.9 ppb
2020-02-20DBP 2005669346.80 ppb
2020-02-20DBP 2005669355.80 ppb
2020-02-20DBP 20056693611.5 ppb
2020-02-20DBP 20056693712.4 ppb
2020-02-20DBP 2005669387.70 ppb
2020-02-20DBP 20056693927.6 ppb
2020-02-20DBP 20056694018.1 ppb
2020-02-20DBP 20056694113.8 ppb
2020-02-20DBP 2005669447.50 ppb
2020-05-13DBP 20057554120.3 ppb
2020-05-13DBP 20057554216.7 ppb
2020-05-13DBP 20057554323.8 ppb
2020-05-13DBP 20057554427.1 ppb
2020-05-13DBP 20057554521.4 ppb
2020-05-13DBP 20057554637.0 ppb
2020-05-13DBP 20057554734.6 ppb
2020-05-13DBP 20057554833.2 ppb
2020-06-11VOC1 20057889214.2 ppb
2020-08-11DBP 20058591837.3 ppb
2020-08-11DBP 20058591932.8 ppb
2020-08-11DBP 20058592042.5 ppb
2020-08-11DBP 20058592150.4 ppb
2020-08-11DBP 20058592239.1 ppb
2020-08-11DBP 20058592364.3 ppb
2020-08-11DBP 20058592466.2 ppb
2020-08-11DBP 20058592576.3 ppb
2020-08-11DBP 20058596837.3 ppb
2020-11-18DBP 20059865412.5 ppb
2020-11-18DBP 20059865511.3 ppb
2020-11-18DBP 20059865616.3 ppb
2020-11-18DBP 20059865717.0 ppb
2020-11-18DBP 20059865826.3 ppb
2020-11-18DBP 20059865925.8 ppb
2020-11-18DBP 20059866024.8 ppb
2020-11-18DBP 20059866117.2 ppb
2020-11-18DBP 20059866211.2 ppb
2021-02-17DBP 20060706711.2 ppb
2021-02-17DBP 20060706810.00 ppb
2021-02-17DBP 20060706913.2 ppb
2021-02-17DBP 20060707015.2 ppb
2021-02-17DBP 20060707127.3 ppb
2021-02-17DBP 20060707224.9 ppb
2021-02-17DBP 20060707320.5 ppb
2021-02-17DBP 20060707417.7 ppb
2021-05-20DBP 20061801515.0 ppb
2021-05-20DBP 20061801612.6 ppb
2021-05-20DBP 20061801723.5 ppb
2021-05-20DBP 20061801820.4 ppb
2021-05-20DBP 20061801918.0 ppb
2021-05-20DBP 20061802028.9 ppb
2021-05-20DBP 20061802124.9 ppb
2021-05-20DBP 20061802221.5 ppb
2021-06-16VOC1 20062120538.2 ppb
2021-08-11DBP 20062813038.7 ppb
2021-08-11DBP 20062813134.0 ppb
2021-08-11DBP 20062813250.7 ppb
2021-08-11DBP 20062813350.7 ppb
2021-08-11DBP 20062813441.6 ppb
2021-08-11DBP 20062813561.3 ppb
2021-08-11DBP 20062813661.9 ppb
2021-08-11DBP 20062813754.9 ppb
2021-11-17D300103908 30010391024.7 ppb
2021-11-17D300103911 30010391322.9 ppb
2021-11-17D300103914 30010391632.0 ppb
2021-11-17D300103917 30010391934.4 ppb
2021-11-17D300103920 30010392227.4 ppb
2021-11-17D300103923 30010392541.4 ppb
2021-11-17D300103926 30010392846.1 ppb
2021-11-17D300103929 30010393136.6 ppb
2022-02-15D300145868 30014587011.1 ppb
2022-02-15D300145871 3001458739.60 ppb
2022-02-15D300145874 30014587615.4 ppb
2022-02-15D300145877 30014587917.3 ppb
2022-02-15D300145880 30014588211.9 ppb
2022-02-15D300145883 30014588525.0 ppb
2022-02-15D300145886 30014588825.6 ppb
2022-02-15D300145889 30014589118.0 ppb
2022-02-15D300145892 3001458941.20 ppb
2022-05-10D300181521 30018152323.2 ppb
2022-05-10D300181524 30018152622.3 ppb
2022-05-10D300181527 30018152932.7 ppb
2022-05-10D300181530 30018153234.6 ppb
2022-05-10D300181533 30018153525.6 ppb
2022-05-10D300181536 30018153838.9 ppb
2022-05-10D300181539 30018154144.2 ppb
2022-05-10D300181542 30018154435.7 ppb
2022-05-10D300181545 30018154723.7 ppb
2022-06-28V300204043 30020405032.3 ppb
2022-08-09D300227257 30022725946.4 ppb
2022-08-09D300227260 30022726240.1 ppb
2022-08-09D300227263 30022726561.0 ppb
2022-08-09D300227266 30022726864.5 ppb
2022-08-09D300227269 30022727152.4 ppb
2022-08-09D300227272 30022727474.4 ppb
2022-08-09D300227275 30022727768.9 ppb
2022-08-09D300227278 30022728070.5 ppb
2022-11-15D300273443 30027344622.9 ppb
2022-11-15D300273450 30027345421.4 ppb
2022-11-15D300273456 30027346130.0 ppb
2022-11-15D300273462 30027346432.2 ppb
2022-11-15D300273465 30027346725.6 ppb
2022-11-15D300273468 30027347045.4 ppb
2022-11-15D300273471 30027347345.8 ppb
2022-11-15D300273474 30027347637.3 ppb
2023-02-09D300307705 3003077077.40 ppb
2023-02-09D300307708 3003077106.80 ppb
2023-02-09D300307711 30030771314.4 ppb
2023-02-09D300307714 30030771612.7 ppb
2023-02-09D300307717 30030771925.3 ppb
2023-02-09D300307720 30030772217.7 ppb
2023-02-09D300307723 3003077258.90 ppb
2023-02-09D300307726 30030772817.9 ppb
2023-05-11D300349330 30034933220.6 ppb
2023-05-11D300349333 30034933518.1 ppb
2023-05-11D300349336 30034933843.7 ppb
2023-05-11D300349339 30034934128.5 ppb
2023-05-11D300349342 30034934423.3 ppb
2023-05-11D300349345 30034934734.0 ppb
2023-05-11D300349348 30034935038.8 ppb
2023-05-11D300349351 30034935330.1 ppb
2023-06-15V300366771 3003667732.70 ppb
2023-08-16D300399298 30039930049.3 ppb
2023-08-16D300399301 30039930344.4 ppb
2023-08-16D300399304 30039930671.1 ppb
2023-08-16D300399307 30039930961.0 ppb
2023-08-16D300399310 30039931250.7 ppb
2023-08-16D300399313 30039931573.9 ppb
2023-08-16D300399316 30039931869.8 ppb
2023-08-16D300399319 30039932170.1 ppb
2023-11-16D300447192 30044719417.0 ppb
2023-11-16D300447195 30044719715.5 ppb
2023-11-16D300447198 30044720022.7 ppb
2023-11-16D300447201 30044720323.4 ppb
2023-11-16D300447204 30044720619.1 ppb
2023-11-16D300447207 30044720931.6 ppb
2023-11-16D300447210 30044721232.5 ppb
2023-11-16D300447213 30044721525.9 ppb