Know Your Environment. Protect Your Health.

Chloroform

Boro of Waynesboro

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.

 

95

Samples

0

Samples exceeding legal limit (MCL)

95

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201845.9 ppb161618.3 ppb - 90.0 ppb
201934.5 ppb161620.0 ppb - 54.1 ppb
202042.1 ppb161629.6 ppb - 53.9 ppb
202151.8 ppb151534.9 ppb - 76.3 ppb
202240.3 ppb161622.3 ppb - 58.2 ppb
202346.1 ppb161625.4 ppb - 73.4 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
2018-01-0213396 LINDA18.3 ppb
2018-01-03581 CLEVELAN20.1 ppb
2018-01-0399 CEMETERY23.4 ppb
2018-01-03261 N BROAD22.3 ppb
2018-04-0299 CEMETERY27.6 ppb
2018-04-02261 N BROAD22.4 ppb
2018-04-02581 CLEVELAN27.5 ppb
2018-04-0213396 LINDA30.6 ppb
2018-07-0399 CEMETERY60.2 ppb
2018-07-03261 N BROAD69.0 ppb
2018-07-03581 CLEVELAN56.4 ppb
2018-07-0313396 LINDA84.7 ppb
2018-10-0313396 LINDA90.0 ppb
2018-10-0399 CEMETERY59.0 ppb
2018-10-03581 CLEVELAN65.0 ppb
2018-10-03261 N BROAD58.0 ppb
2019-01-03H8L0703-0223.0 ppb
2019-01-03H8L0703-0420.0 ppb
2019-01-03H8L0703-0321.0 ppb
2019-01-03H8L0703-0126.0 ppb
2019-04-04H9D0643-0329.4 ppb
2019-04-04H9D0643-0235.1 ppb
2019-04-04H9D0643-0120.8 ppb
2019-04-04H9D0643-0433.0 ppb
2019-07-05H9G0665-0138.7 ppb
2019-07-05H9G0665-0441.4 ppb
2019-07-05H9G0665-0340.2 ppb
2019-07-05H9G0665-0254.1 ppb
2019-10-08H9J0585-0442.1 ppb
2019-10-08H9J0585-0347.4 ppb
2019-10-08H9J0585-0246.0 ppb
2019-10-08H9J0585-0134.4 ppb
2020-01-0631.0 ppb
2020-01-0635.0 ppb
2020-01-0632.0 ppb
2020-01-0635.0 ppb
2020-04-0129.6 ppb
2020-04-0153.9 ppb
2020-04-0143.3 ppb
2020-04-0149.5 ppb
2020-07-0646.2 ppb
2020-07-0651.9 ppb
2020-07-0646.5 ppb
2020-07-0749.9 ppb
2020-10-0545.3 ppb
2020-10-0543.7 ppb
2020-10-0533.3 ppb
2020-10-1448.2 ppb
2021-01-0435.7 ppb
2021-01-0434.9 ppb
2021-01-0435.0 ppb
2021-01-0435.6 ppb
2021-04-0565.6 ppb
2021-04-0568.2 ppb
2021-04-0576.3 ppb
2021-04-0549.8 ppb
2021-07-0756.6 ppb
2021-07-0751.7 ppb
2021-07-0757.3 ppb
2021-10-0664.4 ppb
2021-10-0639.9 ppb
2021-10-0651.8 ppb
2021-10-0653.8 ppb
2022-01-0622.3 ppb
2022-01-0641.8 ppb
2022-01-0635.7 ppb
2022-01-0635.3 ppb
2022-04-0530.1 ppb
2022-04-0531.6 ppb
2022-04-0532.8 ppb
2022-04-0730.9 ppb
2022-07-0632.6 ppb
2022-07-0647.2 ppb
2022-07-0646.4 ppb
2022-07-0653.6 ppb
2022-10-0553.8 ppb
2022-10-0537.1 ppb
2022-10-0555.3 ppb
2022-10-0558.2 ppb
2023-01-0440.8 ppb
2023-01-0426.2 ppb
2023-01-0440.9 ppb
2023-01-0438.0 ppb
2023-04-0534.4 ppb
2023-04-0536.6 ppb
2023-04-0539.9 ppb
2023-04-0525.4 ppb
2023-07-0548.6 ppb
2023-07-0554.4 ppb
2023-07-0560.7 ppb
2023-07-0548.5 ppb
2023-10-0448.0 ppb
2023-10-0473.4 ppb
2023-10-0459.5 ppb
2023-10-0463.0 ppb