Know Your Environment. Protect Your Health.

Bromoform

Olden 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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

32

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.16 ppb84ND - 2.77 ppb
20192.33 ppb84ND - 6.49 ppb
20204.90 ppb881.72 ppb - 8.92 ppb
20211.13 ppb84ND - 2.87 ppb
20222.20 ppb84ND - 6.42 ppb
20237.10 ppb884.43 ppb - 10.2 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
2018-02-21Q18075720022.77 ppb
2018-02-21Q18075720012.74 ppb
2018-05-23Q18209840021.80 ppb
2018-05-23Q18209840011.96 ppb
2018-08-28Q1834714001ND
2018-08-28Q1834714002ND
2018-11-27Q1848305002ND
2018-11-27Q1848305003ND
2019-01-16Q1902809001ND
2019-01-16Q1902809002ND
2019-05-22Q1928156002ND
2019-05-22Q1928156003ND
2019-09-17Q19666080022.91 ppb
2019-09-17Q19666080012.89 ppb
2019-12-17Q19803560016.49 ppb
2019-12-17Q19803560026.38 ppb
2020-03-05Q20084420018.92 ppb
2020-03-05Q20084420028.69 ppb
2020-06-01Q20214010014.74 ppb
2020-06-01Q20214010024.17 ppb
2020-09-08Q20354080014.30 ppb
2020-09-08Q20354080024.90 ppb
2020-11-23Q20468470011.72 ppb
2020-11-23Q20468470021.79 ppb
2021-03-01Q21050940021.93 ppb
2021-03-01Q21050940032.02 ppb
2021-05-19Q21130860012.87 ppb
2021-05-19Q21130860022.19 ppb
2021-09-20Q2125649001ND
2021-09-20Q2125649002ND
2021-11-23Q2132723001ND
2021-11-23Q2132723002ND
2022-03-01Q2206873001ND
2022-03-01Q2206873002ND
2022-05-10Q22139060013.07 ppb
2022-05-10Q22139060022.04 ppb
2022-08-03Q2222261002ND
2022-08-03Q2222261003ND
2022-10-18Q22317430016.05 ppb
2022-10-18Q22317430026.42 ppb
2023-01-12Q23019680015.89 ppb
2023-01-12Q23019680027.16 ppb
2023-04-04Q23123070029.61 ppb
2023-04-04Q231230700310.2 ppb
2023-07-25Q23295140014.43 ppb
2023-07-25Q23295140024.67 ppb
2023-10-09Q23428870017.13 ppb
2023-10-09Q23428870027.70 ppb