Know Your Environment. Protect Your Health.

Bromodichloromethane

Ayer Road Properties LLC

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.220 ppb51ND - 1.10 ppb
20192.51 ppb112.51 ppb
2020ND20ND
20210.224 ppb51ND - 1.12 ppb
2022N/A00N/A
20232.20 ppb221.60 ppb - 2.80 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 Result
2018-06-051.10 ppb
2018-06-05ND
2018-06-05ND
2018-06-05ND
2018-06-05ND
2019-05-302.51 ppb
2020-05-05ND
2020-08-20ND
2021-04-251.12 ppb
2021-04-25ND
2021-04-25ND
2021-04-25ND
2021-04-25ND
2023-04-101.60 ppb
2023-08-232.80 ppb