Know Your Environment. Protect Your Health.

Bromoform

St. Tam Parish-faubourg-coquille

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
20190.730 ppb440.500 ppb - 0.960 ppb
20200.720 ppb220.490 ppb - 0.950 ppb
2021ND20ND
20220.275 ppb21ND - 0.550 ppb
20230.290 ppb21ND - 0.580 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
2018-08-1035410505001ND
2018-08-1035410505002ND
2018-08-1035410505001ND
2018-08-1035410505002ND
2019-08-08354888000010.500 ppb
2019-08-08354888000020.960 ppb
2019-08-08354888000010.500 ppb
2019-08-08354888000020.960 ppb
2020-08-21355727400010.950 ppb
2020-08-21355727400020.490 ppb
2021-08-1235655645001ND
2021-08-1235655645002ND
2022-08-12357400210010.550 ppb
2022-08-1235740021002ND
2023-08-0435818382001ND
2023-08-04358183820020.580 ppb