Know Your Environment. Protect Your Health.

Bromoform

Borough of Conway

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

24

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.50 ppb41ND - 9.99 ppb
20190.169 ppb41ND - 0.676 ppb
20200.353 ppb41ND - 1.41 ppb
20210.504 ppb42ND - 1.23 ppb
2022ND40ND
20230.170 ppb41ND - 0.680 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is 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, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-1502182039ND
2018-05-1018E0855-01ND
2018-08-1518H1864-019.99 ppb
2018-11-1518K1478-01ND
2019-02-1419B0620-01ND
2019-05-1619E0020-01ND
2019-08-1519H0023-010.676 ppb
2019-11-1419K0026-01ND
2020-02-13ND
2020-05-14ND
2020-08-131.41 ppb
2020-11-12ND
2021-02-110.787 ppb
2021-05-13ND
2021-08-121.23 ppb
2021-11-10ND
2022-02-10ND
2022-05-12ND
2022-08-11ND
2022-11-10ND
2023-02-09ND
2023-05-11ND
2023-08-100.680 ppb
2023-11-15ND