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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Orange Water Department

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

 

139

Samples

0

Samples exceeding legal limit (MCL)

101

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.47 ppb3218ND - 6.84 ppb
20154.15 ppb2718ND - 11.8 ppb
20164.72 ppb2016ND - 10.5 ppb
20176.14 ppb1916ND - 17.2 ppb
20183.55 ppb2016ND - 7.87 ppb
20192.93 ppb2117ND - 7.70 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
2014-01-16L4877160-4ND
2014-01-16L4877160-2ND
2014-02-21L4910546-4ND
2014-03-06L4941383-23.26 ppb
2014-03-06L4941383-13.10 ppb
2014-03-06L4941383-32.78 ppb
2014-03-06L4941383-42.96 ppb
2014-03-12L4953056-4ND
2014-04-09L4988791-2ND
2014-04-09L4988791-6ND
2014-05-12L5029187-4ND
2014-06-13L5056403-46.67 ppb
2014-06-13L5056403-35.45 ppb
2014-06-13L5056403-25.48 ppb
2014-06-13L5056403-15.18 ppb
2014-06-13L5073677-4ND
2014-07-25L5123452-24.97 ppb
2014-07-25L5123452-4ND
2014-08-22L5176482-4ND
2014-09-18L5205867-46.84 ppb
2014-09-18L5205867-34.04 ppb
2014-09-18L5205867-24.32 ppb
2014-09-18L5205867-14.19 ppb
2014-09-18L5215537-4ND
2014-10-15L5248018-23.69 ppb
2014-10-15L5259741-4ND
2014-11-19L5298215-4ND
2014-12-17L5320959-45.44 ppb
2014-12-17L5320959-33.51 ppb
2014-12-17L5320959-23.79 ppb
2014-12-17L5320959-13.38 ppb
2014-12-17L5336136-4ND
2015-01-13L5364969-22.45 ppb
2015-01-13L5389200-4ND
2015-02-03L4975034-2ND
2015-03-17L5450528-45.12 ppb
2015-03-17L5450528-310.8 ppb
2015-03-17L5450528-29.20 ppb
2015-03-17L5450528-15.01 ppb
2015-03-17L5465599-4ND
2015-04-13L5498034-1ND
2015-04-13L5512149-4ND
2015-05-21L5553640-40.0700 ppb
2015-06-15L5587050-45.56 ppb
2015-06-15L5587050-32.50 ppb
2015-06-15L5587050-22.55 ppb
2015-06-15L5587050-12.76 ppb
2015-06-18L5606954-4ND
2015-07-08L5652720-1ND
2015-07-08L5673964-4ND
2015-09-14L5760591-411.8 ppb
2015-09-14L5760591-35.18 ppb
2015-09-14L5760591-25.55 ppb
2015-09-14L5760591-15.60 ppb
2015-10-07L5818039-1ND
2015-12-14L5908696-411.0 ppb
2015-12-14L5908696-39.02 ppb
2015-12-14L5908696-28.98 ppb
2015-12-14L5908696-18.94 ppb
2016-01-06L5967051-1ND
2016-03-16L6132071-45.20 ppb
2016-03-16L6132071-33.50 ppb
2016-03-16L6132071-23.50 ppb
2016-03-16L6132071-13.80 ppb
2016-04-11L6125924-1ND
2016-06-14L6254335-410.00 ppb
2016-06-14L6254335-34.90 ppb
2016-06-14L6254335-25.20 ppb
2016-06-14L6254335-15.40 ppb
2016-07-05L6313866-1ND
2016-09-14217568700210.5 ppb
2016-09-1421756870035.50 ppb
2016-09-1421756870045.50 ppb
2016-09-1421756870015.80 ppb
2016-10-132182439001ND
2016-12-1321959480027.70 ppb
2016-12-1321959480035.80 ppb
2016-12-1321959480046.00 ppb
2016-12-1321959480016.00 ppb
2017-03-177030471-029.24 ppb
2017-03-177030471-033.81 ppb
2017-03-177030471-044.04 ppb
2017-03-177030471-013.93 ppb
2017-04-11DWSC2952-1ND
2017-06-13DWSC3310-26.59 ppb
2017-06-13DWSC3310-43.26 ppb
2017-06-13DWSC3310-13.25 ppb
2017-06-13DWSC3310-33.28 ppb
2017-07-11DWSC3483-2ND
2017-09-12DWSC3888-217.2 ppb
2017-09-12DWSC3888-411.8 ppb
2017-09-12DWSC3888-18.51 ppb
2017-09-12DWSC3888-312.9 ppb
2017-10-10DWSC4070-10ND
2017-12-11DWSC4417-29.97 ppb
2017-12-11DWSC4417-46.11 ppb
2017-12-11DWSC4417-16.37 ppb
2017-12-11DWSC4417-36.40 ppb
2018-01-11DWSC4503-1AND
2018-03-15A259337.87 ppb
2018-03-15A259344.10 ppb
2018-03-15A259324.36 ppb
2018-03-15A259354.72 ppb
2018-04-17DWSC5241-1ND
2018-06-12DWSC5494-25.68 ppb
2018-06-12DWSC5494-42.20 ppb
2018-06-12DWSC5494-12.53 ppb
2018-06-12DWSC5494-32.38 ppb
2018-07-1018071024-01ND
2018-09-1418091411-026.82 ppb
2018-09-1418091411-043.01 ppb
2018-09-1418091411-012.99 ppb
2018-09-1418091411-033.09 ppb
2018-10-1118101225-01ND
2018-12-1118121202-046.60 ppb
2018-12-1118121202-024.73 ppb
2018-12-1118121202-014.87 ppb
2018-12-1118121202-034.96 ppb
2019-01-0319010313-021.34 ppb
2019-01-0319010313-01ND
2019-03-1319031502-033.13 ppb
2019-03-1319031502-042.11 ppb
2019-03-1319031502-011.86 ppb
2019-03-1319031502-022.34 ppb
2019-04-0919040924-01ND
2019-06-127063689002-THM7.70 ppb
2019-06-127093689004-THM3.30 ppb
2019-06-127093689001-THM3.50 ppb
2019-06-127063689003-THM3.40 ppb
2019-07-0219070317-001ND
2019-09-1119091110-0045.81 ppb
2019-09-1119091110-0024.95 ppb
2019-09-1119091110-0013.44 ppb
2019-09-1119091110-0033.60 ppb
2019-10-0119100202-001ND
2019-12-2419123104-0026.36 ppb
2019-12-2419123104-0042.86 ppb
2019-12-2419123104-0013.07 ppb
2019-12-2419123104-0032.80 ppb