Know Your Environment. Protect Your Health.

Bromoform

Highway 513 Water Supply

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.

 

66

Samples

0

Samples exceeding legal limit (MCL)

43

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.32 ppb1612ND - 2.40 ppb
20192.09 ppb168ND - 7.30 ppb
20201.49 ppb86ND - 2.80 ppb
20214.33 ppb87ND - 13.2 ppb
20221.03 ppb86ND - 2.90 ppb
20233.83 ppb104ND - 17.0 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
2018-01-10353683650010.930 ppb
2018-01-10353683650021.50 ppb
2018-01-10353683650021.50 ppb
2018-01-10353683650010.930 ppb
2018-04-1935387664002ND
2018-04-1935387664001ND
2018-04-1935387664002ND
2018-04-1935387664001ND
2018-07-25354070480011.90 ppb
2018-07-25354070480022.40 ppb
2018-07-25354070480011.90 ppb
2018-07-25354070480022.40 ppb
2018-10-18354254830011.50 ppb
2018-10-18354254830011.50 ppb
2018-10-18354254830022.30 ppb
2018-10-18354254830022.30 ppb
2019-01-2235443909001ND
2019-01-2235443909002ND
2019-01-2235443909001ND
2019-01-2235443909002ND
2019-04-11354630850011.40 ppb
2019-04-11354630850021.20 ppb
2019-04-11354630850011.40 ppb
2019-04-11354630850021.20 ppb
2019-07-0235479720002ND
2019-07-0235479720001ND
2019-07-0235479720001ND
2019-07-0235479720002ND
2019-10-18355062440016.80 ppb
2019-10-18355062440027.30 ppb
2019-10-18355062440027.30 ppb
2019-10-18355062440016.80 ppb
2020-01-02355219290022.80 ppb
2020-01-02355219290012.80 ppb
2020-04-0835542692001ND
2020-04-0835542692002ND
2020-07-10355624220011.30 ppb
2020-07-10355624220021.50 ppb
2020-10-27355883070021.70 ppb
2020-10-27355883070011.80 ppb
2021-01-28356080610011.60 ppb
2021-01-28356080610021.30 ppb
2021-04-28356297880012.60 ppb
2021-04-2835629788002ND
2021-07-09356465420011.40 ppb
2021-07-09356465420021.40 ppb
2021-11-023567668300113.2 ppb
2021-11-023567668300213.1 ppb
2022-01-1335690862002ND
2022-01-1335690862001ND
2022-04-22357127190010.690 ppb
2022-04-22357127190020.600 ppb
2022-07-06357321040022.90 ppb
2022-07-06357321040012.80 ppb
2022-10-14357537080020.610 ppb
2022-10-14357537080010.670 ppb
2023-01-0635770985001ND
2023-01-0635770985002ND
2023-01-3035776757001ND
2023-01-3035776757002ND
2023-04-1835793724001ND
2023-04-1835793724002ND
2023-07-26358161340012.90 ppb
2023-07-26358161340023.10 ppb
2023-10-253583746300115.3 ppb
2023-10-253583746300217.0 ppb