Know Your Environment. Protect Your Health.

Bromoform

City of Joaquin

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

21

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201819.8 ppb551.77 ppb - 71.4 ppb
20190.977 ppb93ND - 3.73 ppb
20201.80 ppb93ND - 7.56 ppb
202114.4 ppb54ND - 46.9 ppb
20222.46 ppb54ND - 6.79 ppb
20232.94 ppb52ND - 13.4 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
2018-09-27Q183870001071.4 ppb
2018-09-27Q18387000025.61 ppb
2018-09-27Q183870001113.3 ppb
2018-12-11Q18506730011.77 ppb
2018-12-11Q18506730027.00 ppb
2019-03-14Q1910906001ND
2019-03-14Q1910906002ND
2019-05-15Q19256740011.44 ppb
2019-05-15Q1925674004ND
2019-05-15Q1925674005ND
2019-09-30Q19699410023.62 ppb
2019-09-30Q19699410013.73 ppb
2019-12-05Q1979152001ND
2019-12-05Q1979152002ND
2020-03-05Q2008347001ND
2020-03-05Q20083470043.38 ppb
2020-03-05Q2008347005ND
2020-05-13Q2018935001ND
2020-05-13Q2018935002ND
2020-09-01Q2035105001ND
2020-09-01Q2035105002ND
2020-11-04Q20430730017.56 ppb
2020-11-04Q20430730025.22 ppb
2021-01-26Q2101842004ND
2021-01-26Q21018420101.54 ppb
2021-04-13Q210940100120.3 ppb
2021-08-04Q212044200146.9 ppb
2021-10-18Q21290520013.12 ppb
2022-03-14Q22084630051.70 ppb
2022-03-14Q22084630011.40 ppb
2022-05-23Q2214960001ND
2022-08-11Q22233360016.79 ppb
2022-11-14Q22340280012.40 ppb
2023-02-15Q2306301001ND
2023-02-15Q2306301004ND
2023-04-25Q23155360011.30 ppb
2023-07-05Q2326036001ND
2023-10-02Q234210000113.4 ppb