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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Kern County Water Agency

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

 

223

Samples

0

Samples exceeding legal limit (MCL)

135

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20144.39 ppb40400.700 ppb - 9.60 ppb
20156.61 ppb24243.80 ppb - 11.4 ppb
20164.16 ppb3920ND - 11.8 ppb
20170.158 ppb4010ND - 0.700 ppb
20184.14 ppb4020ND - 18.8 ppb
20195.23 ppb4021ND - 25.1 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
2014-01-205810-900-11405.40 ppb
2014-01-205810-901-08503.20 ppb
2014-01-205810-902-09053.30 ppb
2014-01-205810-903-09203.10 ppb
2014-01-205810-904-09455.40 ppb
2014-01-205810-906-10055.40 ppb
2014-01-205810-907-11305.50 ppb
2014-01-205810-908-10205.70 ppb
2014-02-175133-900-12006.20 ppb
2014-02-175133-901-08353.50 ppb
2014-02-175133-902-08503.80 ppb
2014-02-175133-903-09053.70 ppb
2014-02-175133-904-11458.20 ppb
2014-02-175133-906-10054.80 ppb
2014-02-175133-907-09305.60 ppb
2014-02-175133-908-10208.10 ppb
2014-05-205133-900-11201.20 ppb
2014-05-205133-901-09000.700 ppb
2014-05-205133-902-09150.900 ppb
2014-05-205133-903-09351.90 ppb
2014-05-205133-904-11301.30 ppb
2014-05-205133-906-10201.50 ppb
2014-05-205133-907-10001.10 ppb
2014-05-205133-908-10351.70 ppb
2014-08-185133-900-11454.70 ppb
2014-08-185133-901-08353.30 ppb
2014-08-185133-902-08553.30 ppb
2014-08-185133-903-09103.40 ppb
2014-08-185133-904-11304.40 ppb
2014-08-185133-906-09504.40 ppb
2014-08-185133-907-09354.80 ppb
2014-08-185133-908-10109.60 ppb
2014-11-175133-900-13058.50 ppb
2014-11-175133-901-08503.70 ppb
2014-11-175133-902-09103.50 ppb
2014-11-175133-903-09253.70 ppb
2014-11-175133-904-12508.10 ppb
2014-11-175133-906-10106.80 ppb
2014-11-175133-907-09455.60 ppb
2014-11-175133-908-10306.50 ppb
2015-02-165133-900-13059.90 ppb
2015-02-165133-901-09058.40 ppb
2015-02-165133-902-092010.2 ppb
2015-02-165133-903-09359.20 ppb
2015-02-165133-904-130011.4 ppb
2015-02-165133-906-10205.50 ppb
2015-02-165133-907-09559.40 ppb
2015-02-165133-908-10359.70 ppb
2015-10-125810-900-12306.00 ppb
2015-10-125810-901-09005.40 ppb
2015-10-125810-902-09155.50 ppb
2015-10-125810-903-09255.60 ppb
2015-10-125810-904-12156.00 ppb
2015-10-125810-906-10055.00 ppb
2015-10-125810-907-09506.80 ppb
2015-10-125810-908-10307.30 ppb
2015-11-165133-900-11454.90 ppb
2015-11-165133-901-08204.20 ppb
2015-11-165133-902-10153.80 ppb
2015-11-165133-903-10254.20 ppb
2015-11-165133-904-11355.30 ppb
2015-11-165133-906-09354.10 ppb
2015-11-165133-907-09555.90 ppb
2015-11-165133-908-09105.00 ppb
2016-02-155133-900-12158.50 ppb
2016-02-155133-901-08454.90 ppb
2016-02-155133-902-09055.30 ppb
2016-02-155133-903-09207.30 ppb
2016-02-155133-905-12307.60 ppb
2016-02-155133-906-10052.60 ppb
2016-02-155133-907-09508.40 ppb
2016-02-155133-908-10307.50 ppb
2016-02-155133-909-10407.70 ppb
2016-05-165133-900-1210ND
2016-05-165133-901-0840ND
2016-05-165133-902-0855ND
2016-05-165133-903-0915ND
2016-05-165133-904-1155ND
2016-05-165133-905-1225ND
2016-05-165133-906-0955ND
2016-05-165133-907-0940ND
2016-05-165133-908-1015ND
2016-05-165133-909-1030ND
2016-08-155133-900-12350.500 ppb
2016-08-155133-901-0855ND
2016-08-155133-902-0915ND
2016-08-155133-903-0925ND
2016-08-155133-904-1220ND
2016-08-155133-905-1250ND
2016-08-155133-906-1010ND
2016-08-155133-907-0950ND
2016-08-155133-908-1025ND
2016-08-155133-909-1040ND
2016-11-145133-900-110511.5 ppb
2016-11-145133-901-075510.5 ppb
2016-11-145133-902-081010.2 ppb
2016-11-145133-903-083010.3 ppb
2016-11-145133-904-105511.3 ppb
2016-11-145133-905-111510.9 ppb
2016-11-145133-906-09555.60 ppb
2016-11-145133-907-085511.8 ppb
2016-11-145133-908-091510.3 ppb
2016-11-145133-909-09309.60 ppb
2017-02-135133-900-1225ND
2017-02-135133-901-0855ND
2017-02-135133-902-0915ND
2017-02-135133-903-0930ND
2017-02-135133-904-1210ND
2017-02-135133-905-1245ND
2017-02-135133-906-1015ND
2017-02-135133-907-0955ND
2017-02-135133-908-1035ND
2017-02-135133-909-1045ND
2017-05-155133-900-1300ND
2017-05-155133-901-0740ND
2017-05-155133-902-0825ND
2017-05-155133-903-0840ND
2017-05-155133-904-1245ND
2017-05-155133-905-1315ND
2017-05-155133-906-0920ND
2017-05-155133-907-0900ND
2017-05-155133-908-1110ND
2017-05-155133-909-1135ND
2017-08-165133-900-1215ND
2017-08-165133-901-0845ND
2017-08-165133-902-0900ND
2017-08-165133-903-0915ND
2017-08-165133-904-1200ND
2017-08-165133-905-1235ND
2017-08-165133-906-0955ND
2017-08-165133-907-0940ND
2017-08-165133-908-1015ND
2017-08-165133-909-1025ND
2017-11-135133-900-12050.600 ppb
2017-11-135133-901-07450.700 ppb
2017-11-135133-902-08300.600 ppb
2017-11-135133-903-08500.700 ppb
2017-11-135133-904-11300.600 ppb
2017-11-135133-905-12150.600 ppb
2017-11-135133-906-09400.600 ppb
2017-11-135133-907-09150.600 ppb
2017-11-135133-908-10150.600 ppb
2017-11-135133-909-10300.700 ppb
2018-02-125133-900-125016.2 ppb
2018-02-125133-901-090016.6 ppb
2018-02-125133-902-091517.3 ppb
2018-02-125133-903-094511.9 ppb
2018-02-125133-904-123514.8 ppb
2018-02-125133-905-130518.8 ppb
2018-02-125133-906-103017.0 ppb
2018-02-125133-907-101014.7 ppb
2018-02-125133-908-104512.7 ppb
2018-02-125133-909-105513.3 ppb
2018-05-145133-900-1140ND
2018-05-145133-901-0730ND
2018-05-145133-902-0815ND
2018-05-145133-903-0835ND
2018-05-145133-904-1125ND
2018-05-145133-905-1150ND
2018-05-145133-906-0910ND
2018-05-145133-907-0850ND
2018-05-145133-908-0935ND
2018-05-145133-909-0950ND
2018-08-135133-900-0830ND
2018-08-135133-901-0715ND
2018-08-135133-902-0735ND
2018-08-135133-903-0750ND
2018-08-135133-904-0820ND
2018-08-135133-905-0840ND
2018-08-135133-906-0935ND
2018-08-135133-907-0920ND
2018-08-135133-908-0955ND
2018-08-135133-909-1005ND
2018-11-125133-900-09401.20 ppb
2018-11-125133-901-07051.30 ppb
2018-11-125133-902-07451.50 ppb
2018-11-125133-903-08551.70 ppb
2018-11-125133-904-09201.30 ppb
2018-11-125133-905-09351.000 ppb
2018-11-125133-906-11000.900 ppb
2018-11-125133-907-10450.800 ppb
2018-11-125133-908-11231.70 ppb
2018-11-125133-909-11401.000 ppb
2019-02-185133-900-111015.2 ppb
2019-02-185133-901-073018.5 ppb
2019-02-185133-902-075020.2 ppb
2019-02-185133-903-081024.0 ppb
2019-02-185133-904-105011.9 ppb
2019-02-185133-905-112525.1 ppb
2019-02-185133-906-091521.1 ppb
2019-02-185133-907-085024.6 ppb
2019-02-185133-908-095020.7 ppb
2019-02-185133-909-100021.5 ppb
2019-05-135133-900-0830ND
2019-05-135133-901-0705ND
2019-05-135133-902-0725ND
2019-05-135133-903-0745ND
2019-05-135133-904-0815ND
2019-05-135133-905-0845ND
2019-05-135133-906-1005ND
2019-05-135133-907-0940ND
2019-05-135133-908-1030ND
2019-05-135133-909-1040ND
2019-08-145133-900-0730ND
2019-08-145133-901-0650ND
2019-08-145133-902-0700ND
2019-08-145133-903-07050.500 ppb
2019-08-145133-904-0725ND
2019-08-145133-905-0740ND
2019-08-145133-906-0810ND
2019-08-145133-907-0800ND
2019-08-145133-908-0825ND
2019-08-145133-909-0820ND
2019-11-195133-900-10200.500 ppb
2019-11-195133-901-08430.600 ppb
2019-11-195133-902-09030.500 ppb
2019-11-195133-903-09220.700 ppb
2019-11-195133-904-10000.500 ppb
2019-11-195133-905-10430.600 ppb
2019-11-195133-906-12020.600 ppb
2019-11-195133-907-11400.600 ppb
2019-11-195133-908-12250.600 ppb
2019-11-195133-909-12400.600 ppb