Know Your Environment. Protect Your Health.

Chloroform

Fayette Water Supply Corporation West

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.

 

79

Samples

0

Samples exceeding legal limit (MCL)

57

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.39 ppb1411ND - 3.20 ppb
20191.36 ppb139ND - 3.60 ppb
20201.82 ppb1311ND - 4.90 ppb
20212.03 ppb1310ND - 4.40 ppb
20220.792 ppb136ND - 2.40 ppb
20231.49 ppb1310ND - 3.50 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
2018-03-06AE169451.90 ppb
2018-03-06AE169441.50 ppb
2018-03-06AE16974ND
2018-03-06AE16972ND
2018-03-06AE169601.40 ppb
2018-03-06AE169641.40 ppb
2018-04-24AE236941.90 ppb
2018-04-24AE236961.60 ppb
2018-04-24AE23735ND
2018-04-24AE237391.40 ppb
2018-09-13AE399852.10 ppb
2018-09-13AE399883.20 ppb
2018-11-19AE464221.50 ppb
2018-11-19AE464231.60 ppb
2019-03-19AE589871.80 ppb
2019-03-19AE589901.60 ppb
2019-03-19AE59043ND
2019-03-19AE59045ND
2019-03-19AE59047ND
2019-03-19AE59049ND
2019-03-19AE590531.60 ppb
2019-06-13AE705593.60 ppb
2019-06-13AE705751.60 ppb
2019-09-05AE822161.90 ppb
2019-09-05AE822192.10 ppb
2019-11-21AE901271.70 ppb
2019-11-21AE901291.80 ppb
2020-02-12AE981681.30 ppb
2020-02-12AE981701.000 ppb
2020-02-12AE981641.000 ppb
2020-02-12AE980931.80 ppb
2020-02-12AE980922.10 ppb
2020-04-13AF063932.60 ppb
2020-04-13AF063942.50 ppb
2020-04-13AF06401ND
2020-07-08AF185974.10 ppb
2020-07-08AF185984.90 ppb
2020-07-08AF18616ND
2020-10-05AF294511.20 ppb
2020-10-05AF294501.20 ppb
2021-03-08AF456441.80 ppb
2021-03-08AF456452.00 ppb
2021-03-08AF456741.10 ppb
2021-03-08AF45678ND
2021-04-28AF51534ND
2021-04-28AF515322.10 ppb
2021-04-28AF51530ND
2021-04-28AF515123.10 ppb
2021-04-28AF515114.40 ppb
2021-07-19AF623372.70 ppb
2021-07-19AF623382.50 ppb
2021-10-05AF721783.20 ppb
2021-10-05AF721873.50 ppb
2022-02-14AF84533ND
2022-02-14AF845341.30 ppb
2022-02-14AF84596ND
2022-05-31AF98826ND
2022-05-31AF98824ND
2022-05-31AF98801ND
2022-05-31AF988041.000 ppb
2022-09-20AG138161.50 ppb
2022-09-20AG138202.00 ppb
2022-10-12AG168222.40 ppb
2022-10-12AG168232.10 ppb
2022-10-12AG16849ND
2022-10-12AG16863ND
2023-03-09Q23096000051.39 ppb
2023-03-09Q23096000081.36 ppb
2023-03-09Q23096000071.48 ppb
2023-03-09Q2309600003ND
2023-03-09Q23096000011.18 ppb
2023-04-04AG353252.50 ppb
2023-04-04AG353262.50 ppb
2023-04-04AG35371ND
2023-04-04AG35379ND
2023-07-27AG503391.000 ppb
2023-07-27AG503773.50 ppb
2023-10-17AG599982.50 ppb
2023-10-17AG600011.90 ppb