Know Your Environment. Protect Your Health.

Bromoform

Bayview 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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
20190.500 ppb220.500 ppb
20200.635 ppb220.320 ppb - 0.950 ppb
20210.576 ppb76ND - 0.880 ppb
20220.122 ppb63ND - 0.250 ppb
20230.281 ppb75ND - 0.600 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
2018-07-16L7037550-1ND
2018-07-26L7048121-1ND
2018-07-26L7048121-2ND
2018-08-23L7052375-1ND
2019-07-23L7141737-10.500 ppb
2019-07-23L7141737-20.500 ppb
2020-07-23630-3584-10.950 ppb
2020-07-23630-3584-20.320 ppb
2021-07-30630-20174-10.640 ppb
2021-07-30630-20174-20.660 ppb
2021-08-12630-20632-20.860 ppb
2021-08-12630-20632-10.880 ppb
2021-08-12630-20635-10.570 ppb
2021-08-24630-21100-1ND
2021-11-19630-24489-10.420 ppb
2022-03-28630-29935-1ND
2022-05-10630-33114-1ND
2022-07-27630-40912-1-THM0.250 ppb
2022-07-27630-40912-2-THM0.230 ppb
2022-07-27630-40913-10.250 ppb
2022-11-08630-49307-1ND
2023-02-15630-55638-10.260 ppb
2023-05-15630-61145-10.460 ppb
2023-07-17630-66666-10.600 ppb
2023-07-31630-68125-10.350 ppb
2023-07-31630-68133-10.300 ppb
2023-08-09630-69049-1ND
2023-11-08630-75543-1ND