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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

York Water Company

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

 

136

Samples

0

Samples exceeding legal limit (MCL)

105

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.49 ppb16161.10 ppb - 2.10 ppb
20150.569 ppb167ND - 1.60 ppb
20161.16 ppb20200.590 ppb - 2.10 ppb
20171.01 ppb2019ND - 1.60 ppb
20180.954 ppb3224ND - 1.60 ppb
20190.781 ppb3219ND - 1.70 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
2014-02-1114021711-0021.20 ppb
2014-02-1114021711-0041.30 ppb
2014-02-1214021711-0011.10 ppb
2014-02-1214021711-0031.40 ppb
2014-05-0714052045-0011.40 ppb
2014-05-0814052045-0021.50 ppb
2014-05-0814052045-0031.50 ppb
2014-05-0814052045-0041.60 ppb
2014-08-1114081341-0011.80 ppb
2014-08-1114081341-0022.10 ppb
2014-08-1114081341-0032.00 ppb
2014-08-1114081341-0041.90 ppb
2014-11-0714110761-0011.20 ppb
2014-11-0714110761-0021.30 ppb
2014-11-0714110761-0041.30 ppb
2014-11-0714110761-0031.30 ppb
2015-02-1012497581ND
2015-02-1012497593ND
2015-02-1112497575ND
2015-02-1112497587ND
2015-05-0812863924ND
2015-05-1112863930ND
2015-05-1112863936ND
2015-05-1112863942ND
2015-08-11132464401.20 ppb
2015-08-11132464461.60 ppb
2015-08-11132464521.60 ppb
2015-08-11132464581.60 ppb
2015-11-1013615627ND
2015-11-10136156330.960 ppb
2015-11-10136156390.940 ppb
2015-11-10136156451.20 ppb
2016-02-10139676890.730 ppb
2016-02-10139676950.590 ppb
2016-02-10139677010.720 ppb
2016-02-10139677070.650 ppb
2016-05-06143840311.20 ppb
2016-05-11143840420.820 ppb
2016-05-11143840481.000 ppb
2016-05-11143840361.000 ppb
2016-08-10148846451.30 ppb
2016-08-10148846551.20 ppb
2016-08-10148846601.30 ppb
2016-08-10148846501.20 ppb
2016-08-30150559502.10 ppb
2016-08-30150559582.00 ppb
2016-08-31150559642.10 ppb
2016-08-31150559701.40 ppb
2016-11-07153485770.970 ppb
2016-11-07153485950.980 ppb
2016-11-09153485830.990 ppb
2016-11-10153485890.900 ppb
2017-02-07157737471.000 ppb
2017-02-07157736961.000 ppb
2017-02-07157737351.10 ppb
2017-02-08157737410.970 ppb
2017-05-09162345841.20 ppb
2017-05-09162345731.000 ppb
2017-05-09162345780.940 ppb
2017-05-09162345891.20 ppb
2017-08-08167057311.000 ppb
2017-08-10167057430.860 ppb
2017-08-10167057371.60 ppb
2017-08-10167057491.50 ppb
2017-11-08171427431.10 ppb
2017-11-08171427851.10 ppb
2017-11-08171427671.10 ppb
2017-11-08171427610.930 ppb
2017-11-08171427730.880 ppb
2017-11-08171427790.670 ppb
2017-11-0917142749ND
2017-11-09171427551.10 ppb
2018-02-0622936090011.20 ppb
2018-02-0622936090021.10 ppb
2018-02-0622936090031.20 ppb
2018-02-0622936090041.10 ppb
2018-02-0622936090050.840 ppb
2018-02-0622936090060.780 ppb
2018-02-0622936090070.900 ppb
2018-02-0622936090080.900 ppb
2018-05-0923147880011.50 ppb
2018-05-0923147880031.50 ppb
2018-05-0923147880061.60 ppb
2018-05-0923147880071.60 ppb
2018-05-1023147880021.20 ppb
2018-05-1023147880041.50 ppb
2018-05-1023147880051.60 ppb
2018-05-1023147880081.60 ppb
2018-08-092331794001ND
2018-08-092331794002ND
2018-08-092331794003ND
2018-08-092331794004ND
2018-08-092331794005ND
2018-08-092331794006ND
2018-08-092331794007ND
2018-08-092331794008ND
2018-11-0723492830011.50 ppb
2018-11-0723492830031.20 ppb
2018-11-0723492830051.30 ppb
2018-11-0723492830061.20 ppb
2018-11-0723492830071.30 ppb
2018-11-0823492830021.30 ppb
2018-11-0823492830041.30 ppb
2018-11-0823492830081.30 ppb
2019-02-063015235005ND
2019-02-063015235006ND
2019-02-073015235002ND
2019-02-073015235004ND
2019-02-073015235008ND
2019-02-083015235001ND
2019-02-083015235003ND
2019-02-083015235007ND
2019-05-0830328610021.70 ppb
2019-05-0830328610061.20 ppb
2019-05-0830328610081.40 ppb
2019-05-0930328610041.40 ppb
2019-05-0930328610051.30 ppb
2019-05-1030328610011.60 ppb
2019-05-1030328610031.50 ppb
2019-05-1030328610071.20 ppb
2019-08-0730506490011.30 ppb
2019-08-0730506490031.30 ppb
2019-08-0730506490061.30 ppb
2019-08-0730506490071.30 ppb
2019-08-0830506490041.30 ppb
2019-08-0830506490051.30 ppb
2019-08-0930506490021.40 ppb
2019-08-0930506490081.40 ppb
2019-11-063068745001ND
2019-11-063068745002ND
2019-11-0630687450031.10 ppb
2019-11-0630687450041.000 ppb
2019-11-0630687450051.000 ppb
2019-11-063068745006ND
2019-11-063068745007ND
2019-11-063068745008ND