Know Your Environment. Protect Your Health.

Bromoform

Deforest Waterworks

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20190.870 ppb110.870 ppb
20200.870 ppb110.870 ppb
2021ND10ND
20220.210 ppb32ND - 0.350 ppb
20230.0533 ppb121ND - 0.640 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
2018-08-29404007001ND
2019-09-1011468000.870 ppb
2020-08-3112109740.870 ppb
2021-08-251273964ND
2022-07-261326226ND
2022-08-2313315560.280 ppb
2022-08-2313315550.350 ppb
2023-03-21669283001ND
2023-03-21669282001ND
2023-06-08682745001ND
2023-06-08682743001ND
2023-07-25691015001ND
2023-07-25691015002ND
2023-09-07698953003ND
2023-09-07698953001ND
2023-09-19701205001ND
2023-09-197012080010.640 ppb
2023-12-12714406001ND
2023-12-12714406002ND