Know Your Environment. Protect Your Health.

Bromoform

Country Terrace Subdivision

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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.980 ppb51ND - 4.90 ppb
20191.38 ppb51ND - 6.90 ppb
20202.00 ppb51ND - 10.00 ppb
20214.32 ppb54ND - 9.30 ppb
20221.93 ppb94ND - 6.50 ppb
20233.80 ppb64ND - 7.70 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
2018-02-05AE12206ND
2018-04-26AE24107ND
2018-04-26AE24158ND
2018-07-25AE34478ND
2018-10-11AE432324.90 ppb
2019-01-14AE49542ND
2019-01-14AE496416.90 ppb
2019-04-09AE61571ND
2019-08-01AE76786ND
2019-11-13AE89107ND
2020-01-15AE93682ND
2020-01-15AE9374310.00 ppb
2020-05-06AF09615ND
2020-08-27AF25641ND
2020-11-17AF34868ND
2021-01-12AF387955.00 ppb
2021-01-12AF388543.70 ppb
2021-05-04AF52260ND
2021-07-22AF630499.30 ppb
2021-10-11AF728723.60 ppb
2022-01-21AF812802.80 ppb
2022-01-21AF813812.80 ppb
2022-03-08AF88054ND
2022-04-18AF935085.30 ppb
2022-04-18AF93543ND
2022-07-07AG03670ND
2022-07-07AG03604ND
2022-10-19AG175936.50 ppb
2022-10-19AG17630ND
2023-02-09AG28207ND
2023-02-09AG282337.70 ppb
2023-02-09AG282353.80 ppb
2023-04-06AG35787ND
2023-08-04AG515305.70 ppb
2023-11-06AG623715.60 ppb