Know Your Environment. Protect Your Health.

Dibromochloromethane

Westchester County Water District #3

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.

 

60

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.461 ppb81ND - 3.69 ppb
2019ND80ND
20200.181 ppb112ND - 1.69 ppb
2021ND110ND
2022ND110ND
20230.277 ppb111ND - 3.05 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
2018-01-16AU01109DBP2ND
2018-01-16AU01108DBP2ND
2018-04-18AU07842DBP2ND
2018-04-18AU07841DBP2ND
2018-07-18AU15168DBP2ND
2018-07-18AU15167DBP23.69 ppb
2018-10-18AU22696DBP2ND
2018-10-18AU22697DBP2ND
2019-01-17AV01310DBP2ND
2019-01-17AV01311DBP2ND
2019-04-17AV07774DBP2ND
2019-04-17AV07775DBP2ND
2019-07-17AV14906-DBP2ND
2019-07-17AV14907-DBP2ND
2019-10-16AV21954DBP2ND
2019-10-16AV21955DBP2ND
2020-01-15AW01055DBP2ND
2020-01-15AW01054DBP2ND
2020-04-15AW07105DBP2ND
2020-04-15AW07106DBP2ND
2020-04-28AW07856DBP21.69 ppb
2020-07-15AW13392DBP2ND
2020-07-15AW13393DBP2ND
2020-10-21AW20384DBP2ND
2020-10-21AW20383DBP20.300 ppb
2020-12-15AW23893-DBP2ND
2020-12-15AW23891-DBP2ND
2021-01-19AX01185-DBP2ND
2021-01-19AX01186-DBP2ND
2021-04-06AX06359-DBP2ND
2021-04-16AX07177-DBP2ND
2021-04-16AX07178-DBP2ND
2021-07-15AX13994-DBP2ND
2021-07-15AX13993-DBP2ND
2021-10-15AZ20954-DBP2ND
2021-10-15AX20953-DBP2ND
2021-11-09AX22573-DBP2ND
2021-11-09AX22576-DBP2ND
2022-01-14A700807-DBP2ND
2022-01-14AY00806-DBP2ND
2022-04-11AY05984-DBP2ND
2022-04-15AY06300-DBP2ND
2022-04-15AY06299-DBP2ND
2022-07-15AY12284-DBP2ND
2022-07-15AY12285-DBP2ND
2022-10-17AY18647-DBP2ND
2022-10-17AY18659-DBP2ND
2022-11-01AY19679-DBP2ND
2022-11-01AY19681-DBP2ND
2023-01-17AZ00947-DBP2ND
2023-01-17AZ00971-DBP2ND
2023-04-17AZ06833-DBP2ND
2023-04-17AZ06831-DBP2ND
2023-04-25AZ07359-DBP2ND
2023-07-17AZ12814-DBP2ND
2023-07-17AZ12818-DBP2ND
2023-10-17AZ19180-DBP2ND
2023-10-17AZ19177-DBP2ND
2023-11-01AZ20240-DBP2ND
2023-11-01AZ20238-DBP23.05 ppb