Know Your Environment. Protect Your Health.

Bromodichloromethane

Windfern Forest Utility District

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

25

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.47 ppb31ND - 7.40 ppb
20192.40 ppb331.000 ppb - 5.00 ppb
20201.70 ppb32ND - 3.60 ppb
20214.33 ppb441.000 ppb - 8.60 ppb
20226.20 ppb43ND - 11.3 ppb
20233.14 ppb83ND - 9.70 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was 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 and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-29AE10982ND
2018-01-29AE109787.40 ppb
2018-05-18AE26987ND
2019-08-22AE801841.20 ppb
2019-08-22AE802805.00 ppb
2019-12-18AE927011.000 ppb
2020-06-17AF157861.50 ppb
2020-06-17AF158383.60 ppb
2020-06-17AF15840ND
2021-07-13AF617241.000 ppb
2021-07-13AF617206.60 ppb
2021-07-13AF616428.60 ppb
2021-07-13AF616371.10 ppb
2022-02-16AF852846.40 ppb
2022-02-16AF852867.10 ppb
2022-05-26AF98643ND
2022-05-26AF9864511.3 ppb
2023-06-23AG45814ND
2023-06-23AG458159.70 ppb
2023-06-23AG45862ND
2023-06-23AG458647.10 ppb
2023-09-18AG565638.30 ppb
2023-09-18AG56565ND
2023-11-10AG63324ND
2023-11-10AG63325ND