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EWG's Tap Water Database — 2019 UPDATE

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Dibromochloromethane

Espanola Water System

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.

 

59

Samples

0

Samples exceeding legal limit (MCL)

23

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
20132.53 ppb31ND - 7.58 ppb
2014ND120ND
20150.728 ppb124ND - 4.50 ppb
20161.02 ppb126ND - 3.69 ppb
20171.29 ppb1612ND - 3.04 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2012-07-201207A36-001AND
2012-07-201207A43-001AND
2012-07-201207A37-001AND
2012-07-201207A71-001AND
2013-10-291310D84-001AND
2013-10-291310D82-001AND
2013-10-291310D85-001A7.58 ppb
2014-01-311402014-001AND
2014-01-311402016-001AND
2014-01-311402015-001AND
2014-01-311402013-001AND
2014-04-291404B79-001AND
2014-04-291404B81-001AND
2014-04-291404B80-001AND
2014-04-291404B77-001AND
2014-10-311410E45-001AND
2014-10-311410E44-001AND
2014-10-311410E43-001AND
2014-10-311410E46-001AND
2015-01-271501936-001AND
2015-01-271501935-001AND
2015-01-271501934-001AND
2015-01-271501937-001AND
2015-03-261503C41-001AND
2015-03-261503C42-001AND
2015-03-261503C45-001AND
2015-03-261503C44-001AND
2015-07-2120150211150.600 ppb
2015-07-2120150211160.730 ppb
2015-07-2120150211142.90 ppb
2015-07-2120150211174.50 ppb
2016-04-191604845-001A1.62 ppb
2016-04-191604844-001A0.535 ppb
2016-04-191604843-001AND
2016-04-191604842-001AND
2016-07-141607762-001AND
2016-07-141607760-001AND
2016-07-141607759-001A1.33 ppb
2016-07-141607761-001A3.01 ppb
2016-10-131610663-0013.69 ppb
2016-10-131610660-0012.08 ppb
2016-10-131610662-001ND
2016-10-131610661-001ND
2017-01-121701558-001ND
2017-01-121701560-001ND
2017-01-121701562-0011.20 ppb
2017-01-121701563-0011.78 ppb
2017-04-131704602-0012.63 ppb
2017-04-131704604-0012.60 ppb
2017-04-131704603-0010.558 ppb
2017-04-131704605-001ND
2017-07-131707711-0010.699 ppb
2017-07-131707712-0011.24 ppb
2017-07-131707715-0011.63 ppb
2017-07-131707714-0011.76 ppb
2017-10-131710845-0013.04 ppb
2017-10-131710848-0012.69 ppb
2017-10-131710847-0010.889 ppb
2017-10-131710849-001ND