Know Your Environment. Protect Your Health.

Bromoform

Silverdale Water District 16

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.267 ppb31ND - 0.800 ppb
2019ND20ND
2020N/A00N/A
20210.0667 ppb121ND - 0.800 ppb
20220.400 ppb31ND - 1.20 ppb
2023ND20ND

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
2018-08-150.800 ppb
2018-08-15ND
2018-09-04ND
2019-06-24ND
2019-06-24ND
2021-06-224149408ND
2021-06-224142809ND
2021-06-234142810ND
2021-06-234142807ND
2021-06-234142806ND
2021-06-234142808ND
2021-08-114166466ND
2021-08-1141664650.800 ppb
2021-09-154178921ND
2021-09-154178922ND
2021-09-204178920ND
2021-12-064213471ND
2022-07-254419133ND
2022-07-2643221011.20 ppb
2022-07-264322099ND
2023-07-114485449ND
2023-08-284513317ND