Know Your Environment. Protect Your Health.

Bromodichloromethane

City of Italy

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.510 ppb21ND - 1.02 ppb
2019ND20ND
2020ND20ND
20211.11 ppb21ND - 2.22 ppb
2022ND20ND
20231.36 ppb221.23 ppb - 1.49 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
2018-08-31Q18351610021.02 ppb
2018-08-31Q1835161003ND
2019-05-15Q1925368002ND
2019-05-15Q1925368005ND
2020-06-18Q2024811005ND
2020-06-18Q2024811009ND
2021-07-07Q21177880012.22 ppb
2021-11-17Q2132252001ND
2022-08-03Q2222241001ND
2022-08-03Q2222241005ND
2023-09-25Q23411930021.23 ppb
2023-09-25Q23411930091.49 ppb