Know Your Environment. Protect Your Health.

Dibromochloromethane

Perry PWS

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

 

48

Samples

0

Samples exceeding legal limit (MCL)

44

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.37 ppb86ND - 3.26 ppb
20190.679 ppb86ND - 1.32 ppb
20201.38 ppb880.930 ppb - 1.88 ppb
20210.971 ppb880.680 ppb - 1.43 ppb
20221.23 ppb880.880 ppb - 1.69 ppb
20231.85 ppb881.12 ppb - 2.96 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2018-02-21AD14217ND
2018-02-21AD142181.09 ppb
2018-05-16AD204512.04 ppb
2018-05-16AD204501.66 ppb
2018-08-13AD311243.26 ppb
2018-08-13AD311232.36 ppb
2018-11-13AD356600.510 ppb
2018-11-13AD35661ND
2019-02-13AD393280.710 ppb
2019-02-13AD39329ND
2019-05-14AD474090.680 ppb
2019-05-14AD474100.650 ppb
2019-08-15AD538481.14 ppb
2019-08-15AD538491.32 ppb
2019-11-21AD580350.930 ppb
2019-11-21AD58036ND
2020-02-1120019791.02 ppb
2020-02-1120019800.930 ppb
2020-05-2720088281.29 ppb
2020-05-2720088271.21 ppb
2020-08-1820142401.73 ppb
2020-08-1820142411.88 ppb
2020-11-0920179481.50 ppb
2020-11-0920179471.50 ppb
2021-02-0521005991.04 ppb
2021-02-0521005981.43 ppb
2021-05-1021108690.810 ppb
2021-05-1021108700.680 ppb
2021-08-1221152130.920 ppb
2021-08-1221152120.780 ppb
2021-11-1521194341.000 ppb
2021-11-1521194331.11 ppb
2022-02-1422018930.950 ppb
2022-02-1422018920.970 ppb
2022-05-2322114900.880 ppb
2022-05-2322114890.940 ppb
2022-08-1522161741.34 ppb
2022-08-1522161731.49 ppb
2022-11-1822210951.69 ppb
2022-11-1822210941.60 ppb
2023-02-1623005171.12 ppb
2023-02-1623005161.13 ppb
2023-05-1523080631.50 ppb
2023-05-1523080641.59 ppb
2023-08-1423132372.96 ppb
2023-08-1423132362.72 ppb
2023-11-1623181991.74 ppb
2023-11-1623181982.02 ppb