Know Your Environment. Protect Your Health.

Bromodichloromethane

5th Street Water System

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
20211.000 ppb111.000 ppb
2022ND10ND
20230.450 ppb41ND - 1.80 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 Lab ID Result
2018-06-01AE28486ND
2019-06-21AE71685ND
2020-05-27AF12849ND
2021-05-10AF529171.000 ppb
2022-07-05AG03221ND
2023-01-09AG23375ND
2023-04-03AG350881.80 ppb
2023-08-30AG54645ND
2023-10-11AG59367ND