Know Your Environment. Protect Your Health.

Bromoform

Seven Estates

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
20201.66 ppb441.05 ppb - 3.27 ppb
20210.593 ppb31ND - 1.78 ppb
20221.42 ppb43ND - 2.49 ppb
20236.35 ppb43ND - 17.0 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
2020-03-05Q20083360011.07 ppb
2020-03-05Q20083360031.05 ppb
2020-06-17Q20246320063.27 ppb
2020-08-27Q20344280051.24 ppb
2021-05-13Q2112487005ND
2021-09-13Q21248170011.78 ppb
2021-09-13Q2124817003ND
2022-04-27Q22126990051.59 ppb
2022-04-27Q22126990072.49 ppb
2022-09-06Q22263230011.60 ppb
2022-10-19Q2231793003ND
2023-05-04Q23170110011.92 ppb
2023-05-04Q231701100317.0 ppb
2023-05-04Q2317011005ND
2023-05-04Q23170110146.48 ppb