Know Your Environment. Protect Your Health.

Bromoform

Prior Lake

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.450 ppb21ND - 0.900 ppb
2019ND20ND
20200.600 ppb220.500 ppb - 0.700 ppb
20210.300 ppb21ND - 0.600 ppb
20220.850 ppb220.600 ppb - 1.10 ppb
20230.650 ppb21ND - 1.30 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
2018-09-0418I0042-010.900 ppb
2018-09-0418I0042-02ND
2019-08-1419H1468-01ND
2019-08-1419H1468-02ND
2020-08-1220H0876-010.500 ppb
2020-08-1220H0876-020.700 ppb
2021-08-0221H0044-01ND
2021-08-0221H0044-020.600 ppb
2022-08-1622H1433-010.600 ppb
2022-08-1622H1433-021.10 ppb
2023-08-1423H1671-01ND
2023-08-1423H1671-021.30 ppb