Know Your Environment. Protect Your Health.

Bromoform

City of Bothell Water

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.

 

80

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND160ND
2019ND160ND
2020N/A00N/A
2021ND160ND
2022ND160ND
2023ND160ND

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
2018-01-12ND
2018-01-12ND
2018-01-12ND
2018-01-12ND
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-10-09ND
2018-10-09ND
2018-10-09ND
2018-10-09ND
2019-01-15ND
2019-01-15ND
2019-01-15ND
2019-01-15ND
2019-04-16ND
2019-04-16ND
2019-04-16ND
2019-04-16ND
2019-07-19ND
2019-07-19ND
2019-07-19ND
2019-07-19ND
2019-10-15ND
2019-10-15ND
2019-10-15ND
2019-10-15ND
2021-01-144064322ND
2021-01-144064321ND
2021-01-144064319ND
2021-01-144064320ND
2021-04-124101635ND
2021-04-124101637ND
2021-04-124101638ND
2021-04-124101636ND
2021-07-164172411ND
2021-07-164172414ND
2021-07-164172413ND
2021-07-164172412ND
2021-10-144195729ND
2021-10-144195728ND
2021-10-144195730ND
2021-10-144195727ND
2022-01-134230081ND
2022-01-134230082ND
2022-01-134230083ND
2022-01-134230084ND
2022-04-134270547ND
2022-04-134270549ND
2022-04-134270548ND
2022-04-134270546ND
2022-07-114310276ND
2022-07-114310278ND
2022-07-114310275ND
2022-07-114310277ND
2022-10-174361988ND
2022-10-174361987ND
2022-10-174361985ND
2022-10-174361986ND
2023-01-174397737ND
2023-01-174397739ND
2023-01-174397738ND
2023-01-174397736ND
2023-04-104442070ND
2023-04-104442071ND
2023-04-104442069ND
2023-04-104442068ND
2023-07-104482807ND
2023-07-104482808ND
2023-07-104482805ND
2023-07-104482806ND
2023-10-024529355ND
2023-10-024529357ND
2023-10-024529356ND
2023-10-024529358ND