Know Your Environment. Protect Your Health.

Dibromochloromethane

Monroe County Public Water Supply District 2

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)

45

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.44 ppb86ND - 3.60 ppb
20190.891 ppb87ND - 1.51 ppb
20201.38 ppb880.810 ppb - 1.76 ppb
20210.984 ppb880.780 ppb - 1.48 ppb
20221.23 ppb880.940 ppb - 1.64 ppb
20231.92 ppb881.10 ppb - 3.12 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
2018-03-21AD176840.810 ppb
2018-03-21AD176830.710 ppb
2018-05-16AD204731.58 ppb
2018-05-16AD204741.91 ppb
2018-08-13AD311482.91 ppb
2018-08-13AD311493.60 ppb
2018-11-13AD35683ND
2018-11-13AD35684ND
2019-02-21AD39351ND
2019-02-21AD393520.520 ppb
2019-05-15AD474320.810 ppb
2019-05-20AD486170.860 ppb
2019-08-19AD538731.51 ppb
2019-08-19AD538741.42 ppb
2019-11-14AD580581.10 ppb
2019-11-14AD580590.910 ppb
2020-02-1220020040.810 ppb
2020-02-1220020050.990 ppb
2020-05-2020088681.40 ppb
2020-05-2020088691.23 ppb
2020-08-1820142571.74 ppb
2020-08-1820142581.76 ppb
2020-11-2320179991.50 ppb
2020-11-2320179981.60 ppb
2021-02-1021006421.48 ppb
2021-02-1021006430.800 ppb
2021-05-1721109130.790 ppb
2021-05-1721109140.780 ppb
2021-08-1221152590.930 ppb
2021-08-1221152580.840 ppb
2021-11-1521194861.31 ppb
2021-11-1621194870.940 ppb
2022-02-1522019371.04 ppb
2022-02-1622019361.06 ppb
2022-05-1722115300.950 ppb
2022-05-2422115310.940 ppb
2022-08-1122162191.46 ppb
2022-08-1222162181.31 ppb
2022-11-1622211391.47 ppb
2022-11-1622211381.64 ppb
2023-02-2123005571.18 ppb
2023-02-2123005581.10 ppb
2023-05-1723081051.88 ppb
2023-05-1723081041.53 ppb
2023-08-1423132873.12 ppb
2023-08-1423132883.07 ppb
2023-11-2023182461.67 ppb
2023-11-2023182451.81 ppb