Know Your Environment. Protect Your Health.

Bromoform

City of Gonzales

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.

 

63

Samples

0

Samples exceeding legal limit (MCL)

48

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.64 ppb108ND - 7.00 ppb
20192.15 ppb109ND - 3.50 ppb
20200.800 ppb137ND - 2.30 ppb
20210.940 ppb106ND - 2.20 ppb
20222.08 ppb109ND - 3.50 ppb
20232.34 ppb109ND - 4.60 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
2018-02-08AE130014.60 ppb
2018-02-08AE129827.00 ppb
2018-05-03AE250052.00 ppb
2018-05-03AE25102ND
2018-05-03AE249941.90 ppb
2018-08-16AE373115.10 ppb
2018-08-16AE373121.40 ppb
2018-08-16AE373813.40 ppb
2018-12-12AE486311.000 ppb
2018-12-12AE48638ND
2019-03-05AE571183.30 ppb
2019-03-05AE571202.80 ppb
2019-03-05AE57172ND
2019-04-02AE608522.10 ppb
2019-04-02AE608542.00 ppb
2019-07-12AE744272.00 ppb
2019-07-12AE743501.60 ppb
2019-07-12AE743331.20 ppb
2019-10-14AE864353.50 ppb
2019-10-14AE864363.00 ppb
2020-01-21AE943032.30 ppb
2020-01-21AE943051.90 ppb
2020-01-21AE943271.30 ppb
2020-01-21AE94345ND
2020-04-13AF06458ND
2020-04-13AF064591.10 ppb
2020-04-13AF06481ND
2020-07-07AF183061.000 ppb
2020-07-07AF18307ND
2020-07-07AF18363ND
2020-11-13AF34895ND
2020-11-13AF348771.20 ppb
2020-11-13AF348751.60 ppb
2021-01-13AF391021.20 ppb
2021-01-13AF39105ND
2021-01-13AF39138ND
2021-01-13AF39140ND
2021-04-01AF488141.50 ppb
2021-04-01AF488151.50 ppb
2021-09-02AF687261.80 ppb
2021-09-02AF687282.20 ppb
2021-11-08AF75976ND
2021-11-08AF759931.20 ppb
2022-03-11AF888813.50 ppb
2022-03-11AF888823.50 ppb
2022-03-11AF889031.80 ppb
2022-06-22AG019062.10 ppb
2022-06-22AG019042.50 ppb
2022-09-30AG156622.10 ppb
2022-09-30AG156772.30 ppb
2022-09-30AG15716ND
2022-12-09AG214841.50 ppb
2022-12-09AG214851.50 ppb
2023-02-27AG305362.40 ppb
2023-02-27AG305372.20 ppb
2023-02-27AG30619ND
2023-02-27AG306251.50 ppb
2023-06-28AG464312.20 ppb
2023-06-28AG464321.80 ppb
2023-09-11AG555383.30 ppb
2023-09-11AG555404.60 ppb
2023-11-28AG645873.30 ppb
2023-11-28AG645892.10 ppb