Know Your Environment. Protect Your Health.

Bromoform

Ruth Water District

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.203 ppb32ND - 0.370 ppb
20190.455 ppb21ND - 0.910 ppb
20200.730 ppb220.640 ppb - 0.820 ppb
20210.550 ppb21ND - 1.10 ppb
20221.40 ppb221.20 ppb - 1.60 ppb
20231.40 ppb221.10 ppb - 1.70 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
2018-09-18B18091818-0010.370 ppb
2018-09-18B18091818-0020.240 ppb
2018-11-1518110454-001ND
2019-09-0419090167-0010.910 ppb
2019-09-0419090167-002ND
2020-09-032020090906570.640 ppb
2020-09-032020090906590.820 ppb
2021-09-092021091405961.10 ppb
2021-09-09202109140597ND
2022-09-1522090508-0011.20 ppb
2022-09-1522090508-0021.60 ppb
2023-09-1323090282-0011.10 ppb
2023-09-1323090282-0021.70 ppb