Know Your Environment. Protect Your Health.

Bromoform

B C Y Water Supply Corporation

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
20181.12 ppb63ND - 3.59 ppb
20191.19 ppb64ND - 2.13 ppb
20201.58 ppb64ND - 3.22 ppb
20211.01 ppb63ND - 3.48 ppb
20221.24 ppb63ND - 2.96 ppb
20231.67 ppb84ND - 5.80 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
2018-06-21Q18248460051.32 ppb
2018-06-21Q18248460101.80 ppb
2018-06-21Q1824846011ND
2018-06-21Q1824846013ND
2018-06-21Q18248460163.59 ppb
2018-06-21Q1824846004ND
2019-03-13Q1910550001ND
2019-03-13Q19105500051.34 ppb
2019-03-13Q19105500102.13 ppb
2019-03-13Q1910550014ND
2019-09-23Q19680400011.86 ppb
2019-09-23Q19680400021.78 ppb
2020-02-10Q20053140111.95 ppb
2020-02-10Q2005314013ND
2020-02-10Q2005314015ND
2020-03-02Q20077560113.22 ppb
2020-05-14Q20195630022.12 ppb
2020-05-14Q20195630032.19 ppb
2021-09-21Q21258180171.54 ppb
2021-09-21Q2125818005ND
2021-09-21Q2125818016ND
2021-09-21Q2125818007ND
2021-09-21Q21258180033.48 ppb
2021-09-21Q21258180111.02 ppb
2022-09-06Q2226263001ND
2022-09-06Q22262630022.61 ppb
2022-10-27Q22325510161.86 ppb
2022-10-27Q2232551014ND
2022-10-27Q22325510122.96 ppb
2022-10-27Q2232551010ND
2023-01-10Q23012140035.80 ppb
2023-01-10Q2301214005ND
2023-05-01Q2316259005ND
2023-05-01Q23162590074.43 ppb
2023-05-01Q2316259009ND
2023-05-01Q2316259013ND
2023-05-01Q23162590141.91 ppb
2023-11-13Q23484100031.25 ppb