Know Your Environment. Protect Your Health.

Bromoform

Grand Lakes Municipal Utility District 4

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.333 ppb31ND - 1.000 ppb
20190.800 ppb32ND - 1.40 ppb
20201.43 ppb331.20 ppb - 1.90 ppb
2021ND30ND
20221.33 ppb31ND - 4.00 ppb
2023ND30ND

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
2018-07-17AE33595ND
2018-07-17AE33601ND
2018-07-17AE335391.000 ppb
2019-04-12AE622931.000 ppb
2019-04-12AE62303ND
2019-05-07AE651441.40 ppb
2020-06-24AF167621.90 ppb
2020-06-24AF167851.20 ppb
2020-06-24AF167911.20 ppb
2021-06-21AF58839ND
2021-06-21AF58889ND
2021-06-21AF58887ND
2022-01-21AF81329ND
2022-01-21AF81331ND
2022-08-25AG110714.00 ppb
2023-07-20AG49542ND
2023-07-20AG49589ND
2023-07-20AG49591ND