Know Your Environment. Protect Your Health.

Bromoform

Gas City, City of

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
2018ND40ND
20190.250 ppb41ND - 1.000 ppb
2020ND40ND
20210.135 ppb41ND - 0.540 ppb
20220.155 ppb41ND - 0.620 ppb
20230.465 ppb43ND - 0.760 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
2018-02-12907017ND
2018-05-14970887ND
2018-08-131025538ND
2018-11-131077212ND
2019-02-111120278ND
2019-05-131157325ND
2019-08-111221593ND
2019-11-1212748141.000 ppb
2020-02-111325161ND
2020-05-111375060ND
2020-08-101485384ND
2020-11-161665024ND
2021-02-0817690380.540 ppb
2021-05-171841622ND
2021-08-161920672ND
2021-11-152027745ND
2022-02-142194829ND
2022-05-092255409ND
2022-08-082329348ND
2022-11-2824047960.620 ppb
2023-02-1324502850.760 ppb
2023-05-0824978890.580 ppb
2023-08-0725517210.520 ppb
2023-12-112624902ND