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Bromodichloromethane

Rockville Centre

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

MORE ABOUT THIS CONTAMINANT

 

251

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND410ND
20190.0190 ppb421ND - 0.800 ppb
20200.0498 ppb422ND - 1.20 ppb
20210.0162 ppb421ND - 0.680 ppb
20220.0345 ppb442ND - 0.940 ppb
20230.0418 ppb402ND - 1.000 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-01-307041633006-POCSND
2018-01-307041633004-POCSND
2018-01-307041633001-POCSND
2018-01-307041633008-POCSND
2018-01-307041633009-POCSND
2018-01-307041633003-POCSND
2018-01-307041633002-POCSND
2018-01-307041633005-POCSND
2018-01-307041633007-POCSND
2018-04-107047853001ND
2018-04-107047852001ND
2018-04-107047852001-POCSND
2018-04-107047853002ND
2018-04-307049925003ND
2018-04-307049925004ND
2018-04-307049925007ND
2018-04-307049925002ND
2018-04-307049925005ND
2018-04-307049925006ND
2018-04-307049925001ND
2018-04-307049925008ND
2018-05-027050204001ND
2018-05-027050204002ND
2018-08-087060801007-POCSND
2018-08-087060801008-POCSND
2018-08-087060801006ND
2018-08-087060801001-POCSND
2018-08-087060801003-POCSND
2018-08-087060801002-POCSND
2018-08-087060801004-POCSND
2018-08-147061525001-POCSND
2018-10-027066276001-POCSND
2018-11-0770700310007ND
2018-11-077070310009ND
2018-11-077070310004ND
2018-11-077070310006ND
2018-11-077070310005ND
2018-11-077070310003ND
2018-11-077070310002ND
2018-11-077070310008ND
2018-11-077070310001-POCSND
2019-01-087075888003ND
2019-01-087075888007ND
2019-01-087075888008ND
2019-01-087075888006ND
2019-01-087075888005ND
2019-01-087075888002ND
2019-01-087075888004ND
2019-01-087075888001ND
2019-01-087075888009ND
2019-02-087079026001-POCSND
2019-04-177086189005ND
2019-04-177086189002ND
2019-04-177086189004ND
2019-04-177086189001ND
2019-04-177086189008ND
2019-04-177086189003ND
2019-04-177086189007ND
2019-04-177086189009ND
2019-04-177086189006ND
2019-05-097088600010.800 ppb
2019-05-097088981001ND
2019-07-197098207002ND
2019-07-197098207001ND
2019-07-307099364009ND
2019-07-307099364006ND
2019-07-307099364005ND
2019-07-307099364004ND
2019-07-307099364008ND
2019-07-307099364001-POCSND
2019-07-307099364002-POCSND
2019-07-307099364003ND
2019-07-307099364007ND
2019-10-3170110323001-POCSND
2019-10-3170110323009ND
2019-10-3170110323006ND
2019-10-3170110323002ND
2019-10-3170110323008ND
2019-10-3170110323007ND
2019-10-3170110323004ND
2019-10-3170110323003ND
2019-10-3170110323010ND
2019-10-3170110323005ND
2020-01-0770117380003ND
2020-01-0770117380001ND
2020-01-0770117380009ND
2020-01-0770117380002ND
2020-01-0770117380008ND
2020-01-0770117380005ND
2020-01-0770117380010ND
2020-01-0770117380007ND
2020-01-0770117380006ND
2020-01-0770117380004ND
2020-04-3070129600008ND
2020-04-3070129600002ND
2020-04-3070129600005ND
2020-04-3070129600003ND
2020-04-3070129600004ND
2020-04-3070129600009ND
2020-04-3070129600007ND
2020-04-3070129600001ND
2020-04-3070129600006ND
2020-05-06701301560011.20 ppb
2020-05-06701301560020.890 ppb
2020-05-1170130639001ND
2020-07-1770138691006ND
2020-07-1770138691007ND
2020-07-1770138691010ND
2020-07-1770138691009ND
2020-07-1770138691008ND
2020-07-1770138691003ND
2020-07-1770138691004ND
2020-07-1770138691001ND
2020-07-1770138691005ND
2020-07-1770138691002ND
2020-10-0670148393009-POCSND
2020-10-0670148393002-POCSND
2020-10-0670148393006-POCSND
2020-10-0670148393001-POCSND
2020-10-0670148393005-POCSND
2020-10-0670148393007-POCSND
2020-10-0670148393010-POCSND
2020-10-0670148393004-POCSND
2020-10-0670148393008-POCSND
2020-10-0670148393003-POCSND
2021-01-1170158999004-POCSND
2021-01-1170158999005-POCSND
2021-01-1170158999008-POCSND
2021-01-1170158999009-POCSND
2021-01-1170158999010-POCSND
2021-01-1170158999007-POCSND
2021-01-1170158999003-POCSND
2021-01-1170158999006-POCSND
2021-01-1170158999001-POCSND
2021-01-1170158999002-POCSND
2021-05-14701730940010.680 ppb
2021-05-1470173094002ND
2021-05-1870173498004ND
2021-05-1870173498005ND
2021-05-1870173498009ND
2021-05-1870173498001-POCSND
2021-05-1870173498003-POCSND
2021-05-1870173498002-POCSND
2021-05-1870173498010ND
2021-05-1870173498007ND
2021-05-1870173498008ND
2021-05-1870173498006ND
2021-08-0470182910002ND
2021-08-0470182910001ND
2021-08-0470182910003ND
2021-08-0470182910010ND
2021-08-0470182910008ND
2021-08-0470182910009ND
2021-08-0470182910005ND
2021-08-0470182910004ND
2021-08-0470182910006ND
2021-08-0470182910007ND
2021-10-1470191131005ND
2021-10-1470191131003ND
2021-10-1470191131002ND
2021-10-1470191131004ND
2021-10-1470191131001ND
2021-10-1470191131007ND
2021-10-1470191131010ND
2021-10-1470191131008ND
2021-10-1470191131009ND
2021-10-1470191131006ND
2022-01-1970201255006ND
2022-01-1970201255008ND
2022-01-1970201255007ND
2022-01-1970201255010ND
2022-01-1970201255009ND
2022-03-1170207190005ND
2022-03-1170207190003ND
2022-03-1170207190002ND
2022-03-1170207190001ND
2022-03-1170207190004ND
2022-03-1170207191001ND
2022-03-1170207191002ND
2022-04-1470210984005ND
2022-04-1470210984007ND
2022-04-1470210984006ND
2022-04-1470210984002ND
2022-04-1470210984004ND
2022-04-1470210984001ND
2022-04-1470210984003ND
2022-04-1470210984008ND
2022-04-1470210984010ND
2022-04-1470210984009ND
2022-05-06702136610010.940 ppb
2022-05-06702136610020.580 ppb
2022-07-1170221516005ND
2022-07-1170221516008ND
2022-07-1170221516009ND
2022-07-1170221516010ND
2022-07-1170221516006ND
2022-07-1170221516004ND
2022-07-1170221516002ND
2022-07-1170221516001ND
2022-07-1170221516007ND
2022-07-1170221516003ND
2022-10-0670232279007ND
2022-10-0670232279009ND
2022-10-0670232279006ND
2022-10-0670232279010ND
2022-10-0670232279008ND
2022-10-0670232279003ND
2022-10-0670232279004ND
2022-10-0670232279005ND
2022-10-0670232279001ND
2022-10-0670232279002ND
2023-02-2870247805004ND
2023-02-2870247805003ND
2023-02-2870247805002ND
2023-02-2870247805005ND
2023-02-2870247805008ND
2023-02-2870247805001ND
2023-02-2870247805007ND
2023-02-2870247805006ND
2023-04-0670251890001ND
2023-04-0670251890005ND
2023-04-0670251890006ND
2023-04-0670251890007ND
2023-04-0670251890008ND
2023-04-0670251890002ND
2023-04-0670251890004ND
2023-04-0670251890003ND
2023-05-08702555690020.670 ppb
2023-05-08702555690011.000 ppb
2023-06-2170260590002ND
2023-06-2170260590001ND
2023-07-2570264463005ND
2023-07-2570264463003ND
2023-07-2570264463004ND
2023-07-2570264463008ND
2023-07-2570264463007ND
2023-07-2570264463006ND
2023-07-2570264463010ND
2023-07-2570264463009ND
2023-07-2570264463002ND
2023-07-2570264463001ND
2023-11-2870278957008ND
2023-11-2870278957009ND
2023-11-2870278957003ND
2023-11-2870278957010ND
2023-11-2870278957006ND
2023-11-2870278957007ND
2023-11-2870278957001ND
2023-11-2870278957002ND
2023-11-2870278957005ND
2023-11-2870278957004ND