Know Your Environment. Protect Your Health.

Bromoform

San Diego Municipal Utility District 1

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.10 ppb32ND - 1.70 ppb
20190.333 ppb31ND - 1.000 ppb
20200.500 ppb31ND - 1.50 ppb
20210.740 ppb53ND - 1.60 ppb
20221.13 ppb42ND - 2.90 ppb
20230.633 ppb62ND - 2.50 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
2018-02-12AE13322ND
2018-06-04AE284651.60 ppb
2018-06-04AE285551.70 ppb
2019-02-11AE53819ND
2019-05-06AE648451.000 ppb
2019-05-06AE64908ND
2020-06-04AF141361.50 ppb
2020-06-04AF14192ND
2020-06-04AF14196ND
2021-06-07AF574511.60 ppb
2021-06-07AF575191.10 ppb
2021-07-22AF630701.000 ppb
2021-11-29AF77508ND
2021-11-29AF77520ND
2022-01-20AF80982ND
2022-01-20AF81002ND
2022-06-27AG027661.60 ppb
2022-09-28AG154412.90 ppb
2023-02-22AG29940ND
2023-04-24AG37704ND
2023-05-08AG395422.50 ppb
2023-05-08AG395441.30 ppb
2023-07-24AG49832ND
2023-11-15AG63792ND