Know Your Environment. Protect Your Health.

Bromoform

City of Valentine

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20191.40 ppb21ND - 2.80 ppb
2020ND10ND
2021ND10ND
20220.610 ppb21ND - 1.22 ppb
2023ND10ND

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
2018-07-17Q1828670003ND
2019-03-18Q1911446002ND
2019-06-18Q19378790012.80 ppb
2020-05-06Q2017834001ND
2021-06-21Q2116139003ND
2022-09-22Q2228831002ND
2022-09-22Q22288310091.22 ppb
2023-07-25Q2329855003ND