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EWG's Tap Water Database — 2019 UPDATE

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Dibromochloromethane

City of Columbia

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.

 

216

Samples

0

Samples exceeding legal limit (MCL)

188

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201210.3 ppb32322.31 ppb - 28.2 ppb
20133.30 ppb32321.07 ppb - 12.2 ppb
20141.95 ppb3227ND - 4.33 ppb
20152.00 ppb3230ND - 5.62 ppb
20161.45 ppb4030ND - 3.44 ppb
20171.51 ppb4837ND - 2.67 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
2012-02-022120203-3118.4 ppb
2012-02-022120203-3218.9 ppb
2012-02-022120203-3315.8 ppb
2012-02-022120203-3416.0 ppb
2012-02-022120203-353.34 ppb
2012-02-022120203-362.39 ppb
2012-02-022120203-372.31 ppb
2012-02-022120203-382.37 ppb
2012-04-232120424-233.41 ppb
2012-04-232120424-243.68 ppb
2012-04-242120425-173.10 ppb
2012-04-242120425-1822.7 ppb
2012-04-242120425-1918.4 ppb
2012-04-242120425-2021.7 ppb
2012-04-242120425-216.06 ppb
2012-04-242120425-226.65 ppb
2012-07-232120725-254.29 ppb
2012-07-242120725-214.26 ppb
2012-07-242120725-2223.1 ppb
2012-07-242120725-2322.0 ppb
2012-07-242120725-2419.0 ppb
2012-07-242120725-264.09 ppb
2012-07-242120725-274.28 ppb
2012-07-242120725-284.23 ppb
2012-10-222121023-103.28 ppb
2012-10-222121023-93.97 ppb
2012-10-232121024-1028.2 ppb
2012-10-232121024-117.47 ppb
2012-10-232121024-1227.6 ppb
2012-10-232121024-133.31 ppb
2012-10-232121024-142.89 ppb
2012-10-232121024-93.40 ppb
2013-01-282130129-112.50 ppb
2013-01-282130129-122.18 ppb
2013-01-302130131-1012.2 ppb
2013-01-302130131-119.87 ppb
2013-01-302130131-125.87 ppb
2013-01-302130131-132.17 ppb
2013-01-302130131-142.52 ppb
2013-01-302130131-92.29 ppb
2013-04-222130423-113.20 ppb
2013-04-222130423-122.78 ppb
2013-04-252130426-103.53 ppb
2013-04-252130426-113.35 ppb
2013-04-252130426-123.61 ppb
2013-04-252130426-132.79 ppb
2013-04-252130426-142.70 ppb
2013-04-252130426-92.57 ppb
2013-07-222130723-373.11 ppb
2013-07-222130723-382.97 ppb
2013-07-232120724-173.23 ppb
2013-07-232130724-133.19 ppb
2013-07-232130724-141.51 ppb
2013-07-232130724-152.74 ppb
2013-07-232130724-161.07 ppb
2013-07-232130724-183.04 ppb
2013-10-072131008-104.11 ppb
2013-10-072131008-113.36 ppb
2013-10-072131008-124.33 ppb
2013-10-072131008-131.67 ppb
2013-10-072131008-141.77 ppb
2013-10-072131008-91.79 ppb
2013-10-082131009-31.92 ppb
2013-10-082131009-41.77 ppb
2014-01-142140115-31.38 ppb
2014-01-142140115-41.63 ppb
2014-01-152140116-10ND
2014-01-152140116-11ND
2014-01-152140116-12ND
2014-01-152140116-131.49 ppb
2014-01-152140116-141.23 ppb
2014-01-152140116-91.39 ppb
2014-04-072140408-103.16 ppb
2014-04-072140408-112.73 ppb
2014-04-072140408-124.12 ppb
2014-04-072140408-13ND
2014-04-072140408-141.41 ppb
2014-04-072140408-91.27 ppb
2014-04-092140410-31.12 ppb
2014-04-092140410-4ND
2014-07-072140708-111.59 ppb
2014-07-072140708-124.13 ppb
2014-07-072140708-133.34 ppb
2014-07-072140708-144.26 ppb
2014-07-072140708-152.19 ppb
2014-07-072140708-161.95 ppb
2014-07-072140708-171.81 ppb
2014-07-072140708-181.73 ppb
2014-10-132141014-231.95 ppb
2014-10-132141014-243.54 ppb
2014-10-132141014-253.52 ppb
2014-10-132141014-264.33 ppb
2014-10-132141014-271.79 ppb
2014-10-132141014-281.72 ppb
2014-10-132141014-291.82 ppb
2014-10-132141014-301.89 ppb
2015-01-122150113-111.38 ppb
2015-01-122150113-121.29 ppb
2015-01-122150113-13ND
2015-01-122150113-141.28 ppb
2015-01-122150113-151.53 ppb
2015-01-122150113-161.32 ppb
2015-01-122150113-171.39 ppb
2015-01-122150113-181.44 ppb
2015-04-062150408-191.11 ppb
2015-04-062150408-204.16 ppb
2015-04-062150408-213.16 ppb
2015-04-062150408-223.64 ppb
2015-04-062150408-231.52 ppb
2015-04-062150408-241.21 ppb
2015-04-062150408-251.07 ppb
2015-04-062150408-261.18 ppb
2015-07-132150717-533.51 ppb
2015-07-132150717-545.62 ppb
2015-07-132150717-553.30 ppb
2015-07-132150717-564.88 ppb
2015-07-132150717-572.86 ppb
2015-07-132150717-582.86 ppb
2015-07-132150717-593.40 ppb
2015-07-132150717-602.96 ppb
2015-11-092151116-111.27 ppb
2015-11-092151116-120.530 ppb
2015-11-092151116-13ND
2015-11-092151116-140.370 ppb
2015-11-092151116-151.31 ppb
2015-11-092151116-161.49 ppb
2015-11-092151116-171.46 ppb
2015-11-092151116-181.38 ppb
2016-01-112160114-12ND
2016-01-112160114-14ND
2016-01-112160114-151.96 ppb
2016-01-112160114-13ND
2016-01-112160114-111.54 ppb
2016-01-122160114-161.75 ppb
2016-01-122160114-171.55 ppb
2016-01-132160114-181.82 ppb
2016-04-122160413-121.67 ppb
2016-04-122160413-141.06 ppb
2016-04-122160413-15ND
2016-04-122160413-133.44 ppb
2016-04-122160413-18ND
2016-04-122160413-111.44 ppb
2016-04-122160413-16ND
2016-04-122160413-17ND
2016-08-242160826-262.03 ppb
2016-08-242160826-161.90 ppb
2016-08-242160826-182.31 ppb
2016-08-242160826-192.25 ppb
2016-08-242160826-232.27 ppb
2016-08-242160826-242.90 ppb
2016-08-242160826-252.42 ppb
2016-08-242160826-172.36 ppb
2016-08-242160826-221.44 ppb
2016-08-242160826-151.49 ppb
2016-08-242160826-201.47 ppb
2016-08-242160826-211.61 ppb
2016-10-112161014-261.40 ppb
2016-10-112161014-162.19 ppb
2016-10-112161014-182.77 ppb
2016-10-112161014-191.92 ppb
2016-10-112161014-23ND
2016-10-112161014-241.83 ppb
2016-10-112161014-25ND
2016-10-112161014-17ND
2016-10-112161014-221.60 ppb
2016-10-112161014-151.92 ppb
2016-10-112161014-201.90 ppb
2016-10-112161014-211.84 ppb
2017-01-112170113-26ND
2017-01-112170113-16ND
2017-01-112170113-18ND
2017-01-112170113-191.10 ppb
2017-01-112170113-23ND
2017-01-112170113-241.29 ppb
2017-01-112170113-25ND
2017-01-112170113-17ND
2017-01-112170113-221.03 ppb
2017-01-112170113-151.03 ppb
2017-01-112170113-201.10 ppb
2017-01-112170113-211.16 ppb
2017-04-102170414-33ND
2017-04-102170414-34ND
2017-04-102170414-35ND
2017-04-102170414-361.86 ppb
2017-04-102170414-37ND
2017-04-102170414-40ND
2017-04-102170414-411.86 ppb
2017-04-102170414-421.81 ppb
2017-04-102170414-431.47 ppb
2017-04-102170414-441.66 ppb
2017-05-252170526-172.46 ppb
2017-05-252170526-182.24 ppb
2017-07-102170714-322.22 ppb
2017-07-112170714-291.84 ppb
2017-07-112170714-301.76 ppb
2017-07-112170714-311.68 ppb
2017-07-112170714-331.94 ppb
2017-07-112170714-342.45 ppb
2017-07-112170714-351.82 ppb
2017-07-122170714-361.94 ppb
2017-07-122170714-372.35 ppb
2017-07-122170714-382.04 ppb
2017-07-122170714-392.26 ppb
2017-07-122170714-402.25 ppb
2017-10-092171012-182.21 ppb
2017-10-092171012-262.22 ppb
2017-10-102171012-152.10 ppb
2017-10-102171012-162.33 ppb
2017-10-102171012-172.13 ppb
2017-10-102171012-192.28 ppb
2017-10-102171012-202.32 ppb
2017-10-102171012-212.28 ppb
2017-10-112171012-222.37 ppb
2017-10-112171012-232.36 ppb
2017-10-112171012-242.44 ppb
2017-10-112171012-252.67 ppb