Know Your Environment. Protect Your Health.

Dibromochloromethane

Watertown Water & Sewer Authority

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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

83

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.750 ppb16160.500 ppb - 1.30 ppb
20190.656 ppb1614ND - 1.10 ppb
20200.644 ppb1615ND - 0.900 ppb
20210.638 ppb1615ND - 0.800 ppb
20220.588 ppb1612ND - 0.900 ppb
20230.419 ppb1611ND - 0.800 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
2018-03-07DBP 2004895340.600 ppb
2018-03-07DBP 2004895350.600 ppb
2018-03-07DBP 2004895360.600 ppb
2018-03-07DBP 2004895330.600 ppb
2018-06-06DBP 2004963280.800 ppb
2018-06-06DBP 2004963290.700 ppb
2018-06-06DBP 2004963300.700 ppb
2018-06-06DBP 2004963310.700 ppb
2018-09-05DBP 2005040611.30 ppb
2018-09-05DBP 2005040621.10 ppb
2018-09-05DBP 2005040630.900 ppb
2018-09-05DBP 2005040641.000 ppb
2018-12-05DBP 2005149800.700 ppb
2018-12-05DBP 2005149820.600 ppb
2018-12-05DBP 2005149810.600 ppb
2018-12-05DBP 2005149780.500 ppb
2019-03-06DBP 2005237080.700 ppb
2019-03-06DBP 2005237090.600 ppb
2019-03-06DBP 2005237100.600 ppb
2019-03-06DBP 2005237110.500 ppb
2019-06-05DBP 2005350680.600 ppb
2019-06-05DBP 200535069ND
2019-06-05DBP 200535070ND
2019-06-05DBP 2005350710.500 ppb
2019-09-05DBP 2005476371.000 ppb
2019-09-05DBP 2005476401.000 ppb
2019-09-05DBP 2005476391.000 ppb
2019-09-05DBP 2005476361.10 ppb
2019-12-05DBP 2005591470.600 ppb
2019-12-05DBP 2005591480.700 ppb
2019-12-05DBP 2005591490.700 ppb
2019-12-05DBP 2005591460.900 ppb
2020-03-04DBP 2005681970.500 ppb
2020-03-04DBP 200568198ND
2020-03-04DBP 2005681990.600 ppb
2020-03-04DBP 2005682000.600 ppb
2020-06-03DBP 2005778550.600 ppb
2020-06-03DBP 2005778560.600 ppb
2020-06-03DBP 2005778540.600 ppb
2020-06-03DBP 2005778530.700 ppb
2020-09-02DBP 2005886790.900 ppb
2020-09-02DBP 2005886800.700 ppb
2020-09-02DBP 2005886810.800 ppb
2020-09-02DBP 2005886820.800 ppb
2020-12-02DBP 2005997910.700 ppb
2020-12-02DBP 2005997920.800 ppb
2020-12-02DBP 2005997930.700 ppb
2020-12-02DBP 2005997940.700 ppb
2021-03-10DBP 2006093490.500 ppb
2021-03-10DBP 2006093460.600 ppb
2021-03-10DBP 200609347ND
2021-03-10DBP 2006093480.600 ppb
2021-06-02DBP 2006191370.700 ppb
2021-06-02DBP 2006191390.700 ppb
2021-06-02DBP 2006191400.700 ppb
2021-06-02DBP 2006191360.800 ppb
2021-09-08300053894 3000538960.600 ppb
2021-09-08300053900 3000539020.700 ppb
2021-09-08300053903 3000539050.600 ppb
2021-09-22300065698 3000657000.700 ppb
2021-12-01D300110687 3001106890.700 ppb
2021-12-01D300110684 3001106860.800 ppb
2021-12-01D300110681 3001106830.700 ppb
2021-12-01D300110678 3001106800.800 ppb
2022-03-02D300151783 3001517850.800 ppb
2022-03-02D300151786 3001517880.700 ppb
2022-03-02D300151789 3001517910.700 ppb
2022-03-02D300151792 3001517940.700 ppb
2022-06-01D300192098 3001921000.900 ppb
2022-06-01D300192101 3001921030.800 ppb
2022-06-01D300192104 3001921060.800 ppb
2022-06-01D300192107 3001921090.800 ppb
2022-09-14D300244033 3002440350.900 ppb
2022-09-14D300244027 3002440290.500 ppb
2022-09-14D300244024 3002440260.900 ppb
2022-09-14D300244030 3002440320.900 ppb
2022-12-07D300282718 300282720ND
2022-12-07D300282721 300282723ND
2022-12-07D300282724 300282726ND
2022-12-07D300282727 300282729ND
2023-03-16D300321892 3003218940.500 ppb
2023-03-16D300321895 300321897ND
2023-03-16D300321898 3003219000.500 ppb
2023-03-16D300321901 300321903ND
2023-06-14D300365450 300365452ND
2023-06-14D300365456 300365458ND
2023-06-14D300365453 3003654550.600 ppb
2023-06-14D300365447 3003654490.500 ppb
2023-09-06D300410877 3004108790.800 ppb
2023-09-06D300410880 3004108820.700 ppb
2023-09-06D300410883 3004108850.700 ppb
2023-09-06D300410886 3004108880.800 ppb
2023-12-07D300456855 3004568570.500 ppb
2023-12-07D300456858 300456860ND
2023-12-07D300456861 3004568630.600 ppb
2023-12-07D300456864 3004568660.500 ppb