Know Your Environment. Protect Your Health.

Bromoform

Holum Water System

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.

 

64

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND160ND
20190.0875 ppb162ND - 0.700 ppb
20200.319 ppb84ND - 0.830 ppb
20210.208 ppb83ND - 0.710 ppb
20220.385 ppb84ND - 0.880 ppb
20230.283 ppb83ND - 1.30 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
2018-02-2135376144001ND
2018-02-2135376144002ND
2018-02-2135376144002ND
2018-02-2135376144001ND
2018-05-1135391971002ND
2018-05-1135391971001ND
2018-05-1135391971002ND
2018-05-1135391971001ND
2018-08-0635409889001ND
2018-08-0635409889002ND
2018-08-0635409889001ND
2018-08-0635409889002ND
2018-11-1435431647001ND
2018-11-1435431647001ND
2018-11-1435431647002ND
2018-11-1435431647002ND
2019-02-1335448472001ND
2019-02-1335448472002ND
2019-02-1335448472001ND
2019-02-1335448472002ND
2019-05-0635468216001ND
2019-05-0635468216002ND
2019-05-0635468216001ND
2019-05-0635468216002ND
2019-08-0535488688002ND
2019-08-05354886880010.700 ppb
2019-08-05354886880010.700 ppb
2019-08-0535488688002ND
2019-11-0435510921001ND
2019-11-0435510921002ND
2019-11-0435510921002ND
2019-11-0435510921001ND
2020-02-0335529025002ND
2020-02-03355290250010.480 ppb
2020-05-19355519760010.530 ppb
2020-05-1935551976002ND
2020-08-03355679800010.830 ppb
2020-08-0335567980002ND
2020-11-15355937250010.710 ppb
2020-11-1535593725002ND
2021-02-01356093970010.560 ppb
2021-02-01356093970020.390 ppb
2021-05-0335631378001ND
2021-05-0335631378002ND
2021-08-0235653683001ND
2021-08-0235653683002ND
2021-11-16356801340010.710 ppb
2021-11-1635680134002ND
2022-02-14356984490020.880 ppb
2022-02-14356984490010.790 ppb
2022-05-1735720010002ND
2022-05-1735720010001ND
2022-08-15357399420020.690 ppb
2022-08-1535739942001ND
2022-11-1635761576002ND
2022-11-16357615760010.720 ppb
2023-02-07357792750010.520 ppb
2023-02-0735779275002ND
2023-05-16358009070011.30 ppb
2023-05-1635800907002ND
2023-08-07358209610010.440 ppb
2023-08-0735820961002ND
2023-11-2735844562001ND
2023-11-2735844562002ND