Know Your Environment. Protect Your Health.

Bromoform

Westchester County Water District #3

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND80ND
2020ND110ND
20210.182 ppb112ND - 1.000 ppb
2022ND110ND
2023ND110ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is 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, harm to reproduction and child development, and change 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
2018-07-18AU15167DBP2ND
2018-10-18AU22697DBP2ND
2018-10-18AU22696DBP2ND
2019-01-17AV01310DBP2ND
2019-01-17AV01311DBP2ND
2019-04-17AV07775DBP2ND
2019-04-17AV07774DBP2ND
2019-07-17AV14906-DBP2ND
2019-07-17AV14907-DBP2ND
2019-10-16AV21954DBP2ND
2019-10-16AV21955DBP2ND
2020-01-15AW01054DBP2ND
2020-01-15AW01055DBP2ND
2020-04-15AW07105DBP2ND
2020-04-15AW07106DBP2ND
2020-04-28AW07856DBP2ND
2020-07-15AW13392DBP2ND
2020-07-15AW13393DBP2ND
2020-10-21AW20384DBP2ND
2020-10-21AW20383DBP2ND
2020-12-15AW23893-DBP2ND
2020-12-15AW23891-DBP2ND
2021-01-19AX01185-DBP21.000 ppb
2021-01-19AX01186-DBP21.000 ppb
2021-04-06AX06359-DBP2ND
2021-04-16AX07178-DBP2ND
2021-04-16AX07177-DBP2ND
2021-07-15AX13993-DBP2ND
2021-07-15AX13994-DBP2ND
2021-10-15AX20953-DBP2ND
2021-10-15AZ20954-DBP2ND
2021-11-09AX22573-DBP2ND
2021-11-09AX22576-DBP2ND
2022-01-14AY00806-DBP2ND
2022-01-14A700807-DBP2ND
2022-04-11AY05984-DBP2ND
2022-04-15AY06299-DBP2ND
2022-04-15AY06300-DBP2ND
2022-07-15AY12284-DBP2ND
2022-07-15AY12285-DBP2ND
2022-10-17AY18647-DBP2ND
2022-10-17AY18659-DBP2ND
2022-11-01AY19681-DBP2ND
2022-11-01AY19679-DBP2ND
2023-01-17AZ00947-DBP2ND
2023-01-17AZ00971-DBP2ND
2023-04-17AZ06833-DBP2ND
2023-04-17AZ06831-DBP2ND
2023-04-25AZ07359-DBP2ND
2023-07-17AZ12818-DBP2ND
2023-07-17AZ12814-DBP2ND
2023-10-17AZ19180-DBP2ND
2023-10-17AZ19177-DBP2ND
2023-11-01AZ20238-DBP2ND
2023-11-01AZ20240-DBP2ND