Know Your Environment. Protect Your Health.

Bromoform

Concordia Waterworks 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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.890 ppb440.780 ppb - 1.000 ppb
2019ND40ND
20200.500 ppb21ND - 1.000 ppb
20210.747 ppb330.460 ppb - 0.970 ppb
20220.975 ppb220.850 ppb - 1.10 ppb
20230.805 ppb220.770 ppb - 0.840 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
2018-07-18354054160010.780 ppb
2018-07-18354054160021.000 ppb
2018-07-18354054160010.780 ppb
2018-07-18354054160021.000 ppb
2019-07-1035481676002ND
2019-07-1035481676001ND
2019-07-1035481676002ND
2019-07-1035481676001ND
2020-07-1535564098001ND
2020-07-15355640980021.000 ppb
2021-07-27356516640020.970 ppb
2021-08-10356559080010.460 ppb
2021-08-10356559080020.810 ppb
2022-07-20357339830010.850 ppb
2022-07-20357339830021.10 ppb
2023-07-05358112440010.770 ppb
2023-07-05358112440020.840 ppb