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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Richland

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.

MORE ABOUT THIS CONTAMINANT

 

183

Samples

0

Samples exceeding legal limit (MCL)

126

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.70 ppb1612ND - 7.95 ppb
20153.11 ppb2416ND - 8.34 ppb
20162.29 ppb3421ND - 7.16 ppb
20171.57 ppb3220ND - 4.55 ppb
20181.74 ppb3324ND - 4.90 ppb
20193.50 ppb4433ND - 14.1 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
2014-03-11955403.09 ppb
2014-03-1195542ND
2014-03-11955382.55 ppb
2014-03-11955361.83 ppb
2014-06-1098773ND
2014-06-10987714.17 ppb
2014-06-10987671.15 ppb
2014-06-10987691.54 ppb
2014-09-09520153.72 ppb
2014-09-09520172.00 ppb
2014-09-09520132.03 ppb
2014-09-0952019ND
2014-12-09555805.23 ppb
2014-12-09555837.95 ppb
2014-12-0955585ND
2014-12-09555787.95 ppb
2015-03-03577877.84 ppb
2015-03-03577857.86 ppb
2015-03-03577898.34 ppb
2015-03-0357791ND
2015-06-1061149ND
2015-06-10611471.08 ppb
2015-06-10611451.54 ppb
2015-06-10611431.22 ppb
2015-09-0965408ND
2015-09-0965407ND
2015-09-0965406ND
2015-09-09654053.52 ppb
2015-09-09654043.90 ppb
2015-09-09654032.44 ppb
2015-09-09654022.67 ppb
2015-09-09654013.00 ppb
2015-12-0968791ND
2015-12-0968790ND
2015-12-0968789ND
2015-12-09687886.49 ppb
2015-12-09687877.24 ppb
2015-12-09687864.59 ppb
2015-12-09687856.25 ppb
2015-12-09687846.73 ppb
2016-03-085.48 ppb
2016-03-08ND
2016-03-085.59 ppb
2016-03-08ND
2016-03-085.22 ppb
2016-03-08ND
2016-03-085.13 ppb
2016-03-084.97 ppb
2016-05-257.16 ppb
2016-05-25ND
2016-06-14ND
2016-06-14ND
2016-06-142.58 ppb
2016-06-141.38 ppb
2016-06-141.29 ppb
2016-06-141.30 ppb
2016-06-141.27 ppb
2016-06-14ND
2016-09-06ND
2016-09-06ND
2016-09-061.31 ppb
2016-09-061.23 ppb
2016-09-061.33 ppb
2016-09-06ND
2016-09-061.73 ppb
2016-09-061.53 ppb
2016-12-06ND
2016-12-066.02 ppb
2016-12-065.58 ppb
2016-12-06ND
2016-12-065.65 ppb
2016-12-066.01 ppb
2016-12-066.11 ppb
2016-12-06ND
2017-03-233.80 ppb
2017-03-232.86 ppb
2017-03-232.66 ppb
2017-03-233.12 ppb
2017-03-23ND
2017-03-23ND
2017-03-23ND
2017-03-233.28 ppb
2017-06-131.17 ppb
2017-06-13ND
2017-06-131.55 ppb
2017-06-13ND
2017-06-131.02 ppb
2017-06-13ND
2017-06-131.28 ppb
2017-06-131.14 ppb
2017-09-12ND
2017-09-121.50 ppb
2017-09-121.50 ppb
2017-09-121.39 ppb
2017-09-12ND
2017-09-121.57 ppb
2017-09-121.34 ppb
2017-09-12ND
2017-12-124.14 ppb
2017-12-124.55 ppb
2017-12-123.75 ppb
2017-12-12ND
2017-12-12ND
2017-12-124.17 ppb
2017-12-124.41 ppb
2017-12-12ND
2018-03-132.77 ppb
2018-03-134.19 ppb
2018-03-133.83 ppb
2018-03-134.54 ppb
2018-03-134.90 ppb
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-06-122.11 ppb
2018-06-121.59 ppb
2018-06-121.62 ppb
2018-06-121.64 ppb
2018-06-121.80 ppb
2018-06-12ND
2018-06-12ND
2018-06-12ND
2018-07-05ND
2018-09-111.48 ppb
2018-09-111.64 ppb
2018-09-111.53 ppb
2018-09-110.240 ppb
2018-09-110.310 ppb
2018-09-111.91 ppb
2018-09-111.37 ppb
2018-09-110.330 ppb
2018-12-114.18 ppb
2018-12-114.77 ppb
2018-12-113.90 ppb
2018-12-110.410 ppb
2018-12-11ND
2018-12-114.39 ppb
2018-12-112.10 ppb
2018-12-11ND
2019-03-087.88 ppb
2019-03-122.20 ppb
2019-03-125.06 ppb
2019-03-12ND
2019-03-12ND
2019-03-123.85 ppb
2019-03-123.76 ppb
2019-03-124.74 ppb
2019-03-123.47 ppb
2019-04-1114.1 ppb
2019-05-097.34 ppb
2019-06-067.56 ppb
2019-06-111.75 ppb
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-111.72 ppb
2019-06-111.66 ppb
2019-06-112.40 ppb
2019-06-111.89 ppb
2019-07-117.37 ppb
2019-08-088.70 ppb
2019-09-10ND
2019-09-101.90 ppb
2019-09-10ND
2019-09-10ND
2019-09-101.64 ppb
2019-09-101.90 ppb
2019-09-102.17 ppb
2019-09-101.75 ppb
2019-09-128.36 ppb
2019-09-18ND
2019-10-108.20 ppb
2019-11-077.78 ppb
2019-12-103.54 ppb
2019-12-104.61 ppb
2019-12-10ND
2019-12-10ND
2019-12-104.49 ppb
2019-12-104.91 ppb
2019-12-104.92 ppb
2019-12-104.61 ppb
2019-12-127.30 ppb
2019-12-130.500 ppb