Know Your Environment. Protect Your Health.

Bromoform

Town of Ferriday Water System

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)

32

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.135 ppb164ND - 0.550 ppb
20190.795 ppb168ND - 2.30 ppb
20200.456 ppb106ND - 0.830 ppb
20210.358 ppb85ND - 0.640 ppb
20220.443 ppb86ND - 0.690 ppb
20230.699 ppb880.460 ppb - 0.980 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
2018-02-2035375729001ND
2018-02-2035375729002ND
2018-02-2035375729002ND
2018-02-2035375729001ND
2018-05-0935391497002ND
2018-05-0935391497001ND
2018-05-0935391497002ND
2018-05-0935391497001ND
2018-08-0135408243001ND
2018-08-0135408243002ND
2018-08-0135408243001ND
2018-08-0135408243002ND
2018-11-27354336120010.530 ppb
2018-11-27354336120010.530 ppb
2018-11-27354336120020.550 ppb
2018-11-27354336120020.550 ppb
2019-02-1335448501001ND
2019-02-1335448501002ND
2019-02-1335448501001ND
2019-02-1335448501002ND
2019-05-07354677150010.890 ppb
2019-05-07354677150020.970 ppb
2019-05-07354677150010.890 ppb
2019-05-07354677150020.970 ppb
2019-08-21354926800022.20 ppb
2019-08-21354926800012.30 ppb
2019-08-21354926800012.30 ppb
2019-08-21354926800022.20 ppb
2019-11-1335512677001ND
2019-11-1335512677002ND
2019-11-1335512677002ND
2019-11-1335512677001ND
2020-02-0335528432002ND
2020-02-0335528432001ND
2020-05-06355486960010.820 ppb
2020-05-06355486960020.830 ppb
2020-05-2735553125001ND
2020-05-2735553125002ND
2020-08-04355679490010.660 ppb
2020-08-04355679490020.630 ppb
2020-11-18355937980020.810 ppb
2020-11-18355937980010.810 ppb
2021-02-03356098560010.620 ppb
2021-02-03356098560020.640 ppb
2021-05-12356335910010.470 ppb
2021-05-12356335910020.490 ppb
2021-08-1035655900001ND
2021-08-1035655900002ND
2021-11-0335676396001ND
2021-11-03356763960020.640 ppb
2022-02-2235699263002ND
2022-02-2235699263001ND
2022-05-12357174650020.630 ppb
2022-05-12357174650010.510 ppb
2022-08-10357390880020.500 ppb
2022-08-10357390880010.550 ppb
2022-11-02357577110020.690 ppb
2022-11-02357577110010.660 ppb
2023-02-01357767670010.810 ppb
2023-02-01357767670020.850 ppb
2023-05-10357992680010.690 ppb
2023-05-10357992680020.710 ppb
2023-08-28358247060010.460 ppb
2023-08-28358247060020.490 ppb
2023-11-02358389640010.600 ppb
2023-11-02358389640020.980 ppb