Know Your Environment. Protect Your Health.

Bromoform

Upton DPW Water/wastewater Division

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.750 ppb82ND - 3.00 ppb
20190.900 ppb82ND - 3.60 ppb
20201.56 ppb43ND - 3.10 ppb
20210.550 ppb41ND - 2.20 ppb
2022ND40ND
20231.04 ppb440.290 ppb - 1.90 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 Result
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-08-213.00 ppb
2018-08-213.00 ppb
2018-11-05ND
2018-11-05ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2019-08-223.60 ppb
2019-08-223.60 ppb
2020-08-033.10 ppb
2020-11-120.540 ppb
2020-11-122.58 ppb
2020-11-12ND
2021-04-05ND
2021-04-05ND
2021-04-05ND
2021-08-112.20 ppb
2022-05-17ND
2022-05-17ND
2022-05-17ND
2022-08-25ND
2023-06-151.90 ppb
2023-06-150.570 ppb
2023-06-150.290 ppb
2023-08-311.40 ppb