Know Your Environment. Protect Your Health.

Bromoform

Rolling Creek Utility District

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.

 

32

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
2019ND10ND
2020ND30ND
20210.540 ppb52ND - 1.50 ppb
20220.360 ppb103ND - 1.40 ppb
20230.1000 ppb101ND - 1.000 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
2018-03-12AE17874ND
2018-03-12AE178701.000 ppb
2018-06-06AE28795ND
2019-05-14AE66185ND
2020-03-24AF04301ND
2020-03-24AF04305ND
2020-08-21AF24851ND
2021-06-17AF585891.50 ppb
2021-06-17AF58641ND
2021-06-17AF586451.20 ppb
2021-09-17AF70403ND
2021-11-08AF76027ND
2022-03-24AF90442ND
2022-03-24AF90443ND
2022-03-24AF90500ND
2022-05-04AF955331.40 ppb
2022-05-04AF95485ND
2022-05-04AF95481ND
2022-08-01AG07057ND
2022-08-01AG07058ND
2022-12-15AG219231.20 ppb
2022-12-15AG219241.000 ppb
2023-01-23AG25694ND
2023-01-23AG25695ND
2023-01-23AG25752ND
2023-04-06AG35811ND
2023-04-06AG358121.000 ppb
2023-08-07AG51527ND
2023-08-07AG51531ND
2023-08-07AG51598ND
2023-10-16AG59863ND
2023-10-16AG59865ND