Know Your Environment. Protect Your Health.

Bromoform

West Sound Utility District #1

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND20ND
2020N/A00N/A
2021ND20ND
2022ND20ND
2023ND110ND

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
2018-07-06ND
2018-07-25ND
2018-07-25ND
2018-10-09ND
2019-07-12ND
2019-07-12ND
2021-07-164159284ND
2021-07-164159283ND
2022-09-284361296ND
2022-09-284361297ND
2023-05-174468290ND
2023-05-174468290ND
2023-05-174468282ND
2023-05-174468292ND
2023-05-174468291ND
2023-05-194468272ND
2023-05-194468272ND
2023-05-194468272ND
2023-05-194468273ND
2023-08-094505819ND
2023-08-094505816ND