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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Sands Point

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

 

142

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND200ND
20150.0426 ppb191ND - 0.810 ppb
2016ND230ND
2017ND290ND
20180.215 ppb263ND - 2.90 ppb
20190.120 ppb251ND - 3.00 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-111403728-002-POCSND
2014-03-111403728-003-POCSND
2014-03-111403728-004-POCSND
2014-03-111403728-005-POCSND
2014-03-111403728-001-POCSND
2014-05-131405909-002-POCSND
2014-05-131405909-005-POCSND
2014-05-131405909-001-POCSND
2014-05-131405909-004-POCSND
2014-05-131405909-003-POCSND
2014-09-021409077-002-POCSND
2014-09-021409077-001-POCSND
2014-09-021409077-004-POCSND
2014-09-02140907-003-POCSND
2014-09-021409077-005-POCSND
2014-11-181411C18-003-POCSND
2014-11-181411C18-002-POCSND
2014-11-181411C18-005-POCSND
2014-11-181411C18-001-POCSND
2014-11-181411C18-004-POCSND
2015-03-171503B53-002-POCSND
2015-03-171503B53-004-POCSND
2015-03-171503B53-001-POCSND
2015-03-171503B53-003-POCSND
2015-03-171503B53-005-POCSND
2015-06-161506D36-005-POCSND
2015-06-161506D36-002-POCSND
2015-06-161506D36-004-POCSND
2015-06-161506D36-001-POCSND
2015-06-161506D36-003-POCSND
2015-09-221509H02-004-POCSND
2015-09-221509H02-002-POCSND
2015-09-221509H02-003-POCSND
2015-09-221509H02-001-POCSND
2015-09-221509H02-005-POCSND
2015-11-171511D82-002-POCSND
2015-11-171511D82-004-POCSND
2015-11-171511D82-003-POCSND
2015-11-171511D82-001-POCS0.810 ppb
2016-03-221603H56-004ND
2016-03-221603H56-003ND
2016-03-221603H56-002ND
2016-03-221603H56-005-POCSND
2016-03-221603H56-001-POCSND
2016-05-051605483-004ND
2016-05-231605L07-003ND
2016-05-231605L07-001ND
2016-05-231605L07-002ND
2016-05-231605L07-004ND
2016-05-231605L07-005ND
2016-09-261609M44-003ND
2016-09-261609M44-004ND
2016-09-261609M44-005ND
2016-09-261609M44-001ND
2016-09-261609M44-003AND
2016-11-16704726002ND
2016-12-01705820005-POCSND
2016-12-01705820001-POCSND
2016-12-01705820005ND
2016-12-01705820002-POCND
2016-12-01705820004-POCND
2016-12-01705820003-POCND
2017-03-217013839001ND
2017-03-287014322003ND
2017-03-287014322004ND
2017-03-287014322001-POCSND
2017-03-287014322002AND
2017-05-117018457003-POCSND
2017-05-167018796004-POCSND
2017-05-167018796002ND
2017-05-167018796003-POCSND
2017-05-167018796001ND
2017-05-167018796004ND
2017-05-167018796003ND
2017-05-167018796001-POCSND
2017-05-167018796002-POCSND
2017-05-187019036001ND
2017-09-257030950005ND
2017-09-257030950004-POCSND
2017-09-252902852-POCSND
2017-09-257030950006-POCSND
2017-09-257030950002-POCSND
2017-09-257030950003-POCSND
2017-09-25703950001-POCSND
2017-09-257030950001-POCSND
2017-11-147035726004-POCSND
2017-11-147035726005-POCSND
2017-11-147035726002-POCSND
2017-11-147035726006-POCSND
2017-11-147035726001-POCSND
2017-11-147035726003-POCSND
2018-03-147045332001-POCSND
2018-03-147045332006-POCSND
2018-03-147045332003-POCSND
2018-03-147045332002-POCSND
2018-03-147045332004-POCSND
2018-03-147045332005-POCSND
2018-05-087050974003-POCSND
2018-05-087050974002-POCSND
2018-05-087050974001-POCSND
2018-05-087050974005-POCSND
2018-05-087050974006-POCSND
2018-05-087050974004-POCSND
2018-09-1070642350022.10 ppb
2018-09-1070642350012.90 ppb
2018-09-187065159006-POCSND
2018-09-187065159001-POCSND
2018-09-187065159002-POCSND
2018-09-187065159003-POCSND
2018-09-187065159005-POCSND
2018-09-187065159004-POCSND
2018-11-287072272003-POCS0.600 ppb
2018-11-2870772272001-POCSND
2018-11-287072272004-POCSND
2018-11-287072266001-POCSND
2018-11-287072272005-POCSND
2018-11-287072272002-POCSND
2019-03-197082838003ND
2019-03-197082838001ND
2019-03-197082847001ND
2019-03-197082838002ND
2019-03-197082847002ND
2019-03-197082847003ND
2019-06-047092017005-POCSND
2019-06-047092017003-POCSND
2019-06-047092017001-POCSND
2019-06-047092017002-POCSND
2019-06-047092017004-POCSND
2019-06-047092017006-POCSND
2019-09-09701042080013.00 ppb
2019-09-1770105251001-POCSND
2019-09-1770105251004ND
2019-09-1770105251002-POCSND
2019-09-1770105251006ND
2019-09-1770105251003-POCSND
2019-09-1770105251005ND
2019-12-0370113924002ND
2019-12-0370113924005ND
2019-12-0370113924001ND
2019-12-0370113924006ND
2019-12-0370113924003ND
2019-12-1770113924004ND