Know Your Environment. Protect Your Health.

Bromoform

Utrwd Regional Water Treatment Plant

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.20 ppb32ND - 2.29 ppb
20190.420 ppb31ND - 1.26 ppb
20200.403 ppb31ND - 1.21 ppb
20210.340 ppb31ND - 1.02 ppb
20221.15 ppb32ND - 1.84 ppb
20230.630 ppb31ND - 1.89 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
2018-09-13Q18365700011.32 ppb
2018-09-25Q18382560072.29 ppb
2018-09-25Q1838256005ND
2019-09-26Q1969362002ND
2019-09-27Q19702790041.26 ppb
2019-09-27Q1970279005ND
2020-08-18Q2032859002ND
2020-08-18Q2032859004ND
2020-08-18Q20328590101.21 ppb
2021-09-27Q21263050031.02 ppb
2021-09-27Q2126305010ND
2021-09-27Q2126305005ND
2022-06-21Q22171600031.84 ppb
2022-09-15Q22276730031.60 ppb
2022-09-15Q2227673005ND
2023-08-02Q23314450011.89 ppb
2023-08-02Q2331445003ND
2023-08-02Q2331445010ND