Dibromochloromethane
City of Grand Prairie
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.
223
Samples
0
Samples exceeding legal limit (MCL)
217
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2012 | 4.92 ppb | 33 | 33 | 1.30 ppb - 10.3 ppb |
| 2013 | 6.35 ppb | 32 | 31 | ND - 13.6 ppb |
| 2014 | 6.59 ppb | 40 | 38 | ND - 27.8 ppb |
| 2015 | 4.11 ppb | 40 | 38 | ND - 17.2 ppb |
| 2016 | 2.82 ppb | 40 | 39 | ND - 8.28 ppb |
| 2017 | 4.60 ppb | 38 | 38 | 1.66 ppb - 8.76 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 |
|---|---|---|
| 2012-03-07 | 1203255006 | 9.30 ppb |
| 2012-03-07 | 1203255007 | 10.3 ppb |
| 2012-03-07 | 1203255008 | 10.3 ppb |
| 2012-03-07 | 1203255009 | 1.70 ppb |
| 2012-03-07 | 1203255010 | 8.70 ppb |
| 2012-03-07 | 1203255011 | 7.20 ppb |
| 2012-03-07 | 1203255012 | 6.80 ppb |
| 2012-03-07 | 1203255013 | 4.10 ppb |
| 2012-05-23 | 1205797001 | 4.60 ppb |
| 2012-05-23 | 1205797002 | 4.50 ppb |
| 2012-05-23 | 1205797003 | 4.60 ppb |
| 2012-05-23 | 1205797004 | 5.40 ppb |
| 2012-05-23 | 1205797005 | 3.60 ppb |
| 2012-05-23 | 1205797006 | 3.60 ppb |
| 2012-05-23 | 1205797007 | 2.40 ppb |
| 2012-05-23 | 1205797008 | 5.00 ppb |
| 2012-08-13 | 1208543010 | 2.70 ppb |
| 2012-08-13 | 1208543012 | 3.30 ppb |
| 2012-08-13 | 1208543013 | 2.10 ppb |
| 2012-08-13 | 1208543014 | 2.80 ppb |
| 2012-08-13 | 1208543015 | 2.70 ppb |
| 2012-08-13 | 1208543016 | 2.90 ppb |
| 2012-08-13 | 1208543017 | 3.10 ppb |
| 2012-08-13 | 1208543018 | 1.30 ppb |
| 2012-08-13 | 1208543019 | 2.00 ppb |
| 2012-11-06 | 1211172002 | 5.80 ppb |
| 2012-11-06 | 1211172003 | 6.20 ppb |
| 2012-11-06 | 1211172004 | 6.30 ppb |
| 2012-11-06 | 1211172005 | 9.10 ppb |
| 2012-11-06 | 1211172006 | 5.80 ppb |
| 2012-11-06 | 1211172007 | 6.10 ppb |
| 2012-11-06 | 1211172008 | 2.40 ppb |
| 2012-11-06 | 1211172009 | 5.60 ppb |
| 2013-02-19 | 1302571005 | 8.80 ppb |
| 2013-02-19 | 1302571006 | 8.30 ppb |
| 2013-02-19 | 1302571007 | 7.90 ppb |
| 2013-02-19 | 1302571008 | 6.80 ppb |
| 2013-02-19 | 1302571009 | 8.20 ppb |
| 2013-02-19 | 1302571010 | 7.90 ppb |
| 2013-02-19 | 1302571011 | 3.30 ppb |
| 2013-02-19 | 1302571012 | 4.70 ppb |
| 2013-04-15 | 1304563001 | 5.70 ppb |
| 2013-04-15 | 1304563002 | 2.90 ppb |
| 2013-04-15 | 1304563003 | 1.40 ppb |
| 2013-04-15 | 1304563004 | 4.10 ppb |
| 2013-04-15 | 1304563005 | 4.80 ppb |
| 2013-04-15 | 1304563006 | 4.50 ppb |
| 2013-04-15 | 1304563007 | ND |
| 2013-04-15 | 1304563008 | 3.00 ppb |
| 2013-07-08 | Q1303398009 | 5.56 ppb |
| 2013-07-08 | Q1303398010 | 5.45 ppb |
| 2013-07-08 | Q1303398011 | 5.22 ppb |
| 2013-07-08 | Q1303398012 | 5.96 ppb |
| 2013-07-08 | Q1303398013 | 5.16 ppb |
| 2013-07-08 | Q1303398014 | 5.91 ppb |
| 2013-07-08 | Q1303398015 | 4.09 ppb |
| 2013-07-08 | Q1303398016 | 3.81 ppb |
| 2013-10-22 | Q1309442011 | 12.9 ppb |
| 2013-10-22 | Q1309442012 | 13.6 ppb |
| 2013-10-22 | Q1309442013 | 13.2 ppb |
| 2013-10-22 | Q1309442014 | 6.33 ppb |
| 2013-10-22 | Q1309442015 | 12.1 ppb |
| 2013-10-22 | Q1309442016 | 11.6 ppb |
| 2013-10-22 | Q1309442017 | 2.56 ppb |
| 2013-10-22 | Q1309442018 | 7.41 ppb |
| 2014-02-17 | Q1404845001 | ND |
| 2014-02-17 | Q1404845002 | 5.44 ppb |
| 2014-02-17 | Q1404845003 | 5.22 ppb |
| 2014-02-17 | Q1404845004 | 5.49 ppb |
| 2014-02-17 | Q1404845005 | 5.53 ppb |
| 2014-02-17 | Q1404845006 | ND |
| 2014-02-17 | Q1404845007 | 3.38 ppb |
| 2014-02-17 | Q1404845008 | 5.26 ppb |
| 2014-04-23 | Q1412991001 | 3.76 ppb |
| 2014-04-23 | Q1412991011 | 7.70 ppb |
| 2014-04-23 | Q1412991012 | 9.10 ppb |
| 2014-04-23 | Q1412991013 | 7.80 ppb |
| 2014-04-23 | Q1412991014 | 7.50 ppb |
| 2014-04-23 | Q1412991015 | 7.80 ppb |
| 2014-04-23 | Q1412991016 | 7.10 ppb |
| 2014-04-23 | Q1412991017 | 5.20 ppb |
| 2014-04-23 | Q1412991018 | 6.40 ppb |
| 2014-06-04 | Q1419331002 | 4.11 ppb |
| 2014-06-26 | Q1424023002 | 3.23 ppb |
| 2014-06-26 | Q1424023003 | 5.14 ppb |
| 2014-06-26 | Q1424023005 | 5.01 ppb |
| 2014-06-26 | Q1424023040 | 27.8 ppb |
| 2014-07-01 | Q1425066001 | 7.00 ppb |
| 2014-07-01 | Q1425066002 | 5.30 ppb |
| 2014-07-01 | Q1425066003 | 5.80 ppb |
| 2014-07-01 | Q1425066004 | 7.20 ppb |
| 2014-07-01 | Q1425066005 | 6.90 ppb |
| 2014-07-01 | Q1425066006 | 7.10 ppb |
| 2014-07-01 | Q1425066007 | 5.80 ppb |
| 2014-07-01 | Q1425066008 | 7.10 ppb |
| 2014-09-10 | Q1442991002 | 1.65 ppb |
| 2014-09-10 | Q1442991005 | 6.08 ppb |
| 2014-10-27 | Q1453997008 | 9.00 ppb |
| 2014-10-27 | Q1453997001 | 8.40 ppb |
| 2014-10-27 | Q1453997002 | 8.60 ppb |
| 2014-10-27 | Q1453997003 | 9.00 ppb |
| 2014-10-27 | Q1453997004 | 8.40 ppb |
| 2014-10-27 | Q1453997005 | 9.00 ppb |
| 2014-10-27 | Q1453997006 | 5.30 ppb |
| 2014-10-27 | Q1453997007 | 7.90 ppb |
| 2015-01-26 | Q1502670006 | 6.10 ppb |
| 2015-01-26 | Q1502670007 | 6.70 ppb |
| 2015-01-26 | Q1502670008 | 6.20 ppb |
| 2015-01-26 | Q1502670001 | 8.00 ppb |
| 2015-01-26 | Q1502670002 | 6.20 ppb |
| 2015-01-26 | Q1502670003 | 6.00 ppb |
| 2015-01-26 | Q1502670004 | 2.80 ppb |
| 2015-01-26 | Q1502670005 | 8.20 ppb |
| 2015-03-11 | Q1509064001 | ND |
| 2015-05-06 | Q1516759001 | 1.000 ppb |
| 2015-05-06 | Q1516759002 | 1.29 ppb |
| 2015-05-06 | Q1516759003 | 1.45 ppb |
| 2015-05-06 | Q1516759004 | 1.03 ppb |
| 2015-05-06 | Q1516759005 | ND |
| 2015-05-06 | Q1516759006 | 1.01 ppb |
| 2015-05-06 | Q1516759007 | 2.35 ppb |
| 2015-05-06 | Q1516759008 | 17.2 ppb |
| 2015-06-09 | Q1521042004 | 1.09 ppb |
| 2015-07-14 | Q1526936001 | 3.69 ppb |
| 2015-07-14 | Q1526936003 | 3.02 ppb |
| 2015-07-14 | Q1526936006 | 2.50 ppb |
| 2015-07-14 | Q1526936007 | 1.87 ppb |
| 2015-07-14 | Q1526936014 | 3.18 ppb |
| 2015-07-14 | Q1526936015 | 3.06 ppb |
| 2015-07-14 | Q1526936016 | 3.78 ppb |
| 2015-07-14 | Q1526936017 | 3.90 ppb |
| 2015-07-14 | Q1526936018 | 3.55 ppb |
| 2015-07-14 | Q1526936019 | 3.28 ppb |
| 2015-07-14 | Q1526936020 | 2.77 ppb |
| 2015-07-14 | Q1526936021 | 16.3 ppb |
| 2015-10-07 | Q1539391014 | 2.19 ppb |
| 2015-10-07 | Q1539391012 | 4.73 ppb |
| 2015-10-07 | Q1539391003 | 2.48 ppb |
| 2015-10-07 | Q1539391004 | 2.41 ppb |
| 2015-10-07 | Q1539391005 | 2.62 ppb |
| 2015-10-07 | Q1539391006 | 2.43 ppb |
| 2015-10-07 | Q1539391007 | 2.24 ppb |
| 2015-10-07 | Q1539391008 | 1.74 ppb |
| 2015-10-07 | Q1539391009 | 3.62 ppb |
| 2015-10-07 | Q1539391010 | 12.5 ppb |
| 2016-01-14 | Q1601729011 | 1.16 ppb |
| 2016-01-14 | Q1601729014 | 1.14 ppb |
| 2016-01-14 | Q1601729016 | ND |
| 2016-01-14 | Q1601729018 | 1.14 ppb |
| 2016-01-14 | Q1601729003 | 1.77 ppb |
| 2016-01-14 | Q1601729004 | 1.64 ppb |
| 2016-01-14 | Q1601729005 | 1.89 ppb |
| 2016-01-14 | Q1601729006 | 1.82 ppb |
| 2016-01-14 | Q1601729007 | 1.97 ppb |
| 2016-01-14 | Q1601729008 | 1.62 ppb |
| 2016-01-14 | Q1601729009 | 1.80 ppb |
| 2016-01-14 | Q1601729010 | 7.08 ppb |
| 2016-03-01 | Q1608611002 | 1.49 ppb |
| 2016-04-06 | Q1613635002 | 1.92 ppb |
| 2016-04-06 | Q1613635003 | 1.70 ppb |
| 2016-04-06 | Q1613635004 | 1.72 ppb |
| 2016-04-06 | Q1613635005 | 1.95 ppb |
| 2016-04-06 | Q1613635006 | 1.83 ppb |
| 2016-04-06 | Q1613635007 | 1.73 ppb |
| 2016-04-06 | Q1613635008 | 1.98 ppb |
| 2016-04-06 | Q1613635001 | 2.28 ppb |
| 2016-07-14 | Q1628712002 | 2.63 ppb |
| 2016-07-14 | Q1628712006 | 2.14 ppb |
| 2016-07-14 | Q1628712007 | 2.24 ppb |
| 2016-07-14 | Q1628712008 | 2.16 ppb |
| 2016-07-14 | Q1628712009 | 2.10 ppb |
| 2016-07-14 | Q1628712010 | 2.01 ppb |
| 2016-07-14 | Q1628712011 | 2.00 ppb |
| 2016-07-14 | Q1628712012 | 1.86 ppb |
| 2016-07-14 | Q1628712013 | 6.93 ppb |
| 2016-10-05 | Q1642114002 | 4.96 ppb |
| 2016-10-05 | Q1642114005 | 4.03 ppb |
| 2016-10-05 | Q1642114006 | 3.86 ppb |
| 2016-10-05 | Q1642114007 | 3.82 ppb |
| 2016-10-05 | Q1642114008 | 4.13 ppb |
| 2016-10-05 | Q1642114009 | 4.05 ppb |
| 2016-10-05 | Q1642114010 | 3.94 ppb |
| 2016-10-05 | Q1642114011 | 8.28 ppb |
| 2016-10-05 | Q1642114012 | 6.66 ppb |
| 2016-12-05 | Q1652555001 | 5.29 ppb |
| 2017-01-05 | Q1700632016 | 3.75 ppb |
| 2017-01-05 | Q1700632002 | 2.50 ppb |
| 2017-01-05 | Q1700632009 | 1.85 ppb |
| 2017-01-05 | Q1700632025 | 1.67 ppb |
| 2017-01-05 | Q1700632010 | 1.70 ppb |
| 2017-01-05 | Q1700632026 | 1.75 ppb |
| 2017-01-05 | Q1700632011 | 2.15 ppb |
| 2017-01-05 | Q1700632027 | 1.66 ppb |
| 2017-01-05 | Q1700632012 | 3.80 ppb |
| 2017-01-05 | Q1700632028 | 3.52 ppb |
| 2017-04-05 | Q1714294001 | 3.47 ppb |
| 2017-04-05 | Q1714294002 | 3.22 ppb |
| 2017-04-05 | Q1714294003 | 3.41 ppb |
| 2017-04-05 | Q1714294004 | 3.34 ppb |
| 2017-04-05 | Q1714294005 | 3.33 ppb |
| 2017-04-05 | Q1714294006 | 3.23 ppb |
| 2017-04-05 | Q1714294007 | 6.53 ppb |
| 2017-04-05 | Q1714294008 | 5.52 ppb |
| 2017-06-27 | Q1726535020 | 4.16 ppb |
| 2017-06-27 | Q1726535021 | 7.11 ppb |
| 2017-06-27 | Q1726535014 | 5.98 ppb |
| 2017-06-27 | Q1726535024 | 5.23 ppb |
| 2017-08-14 | Q1735248007 | 5.44 ppb |
| 2017-08-14 | Q1735248002 | 4.75 ppb |
| 2017-08-14 | Q1735248008 | 5.33 ppb |
| 2017-08-14 | Q1735248003 | 4.74 ppb |
| 2017-08-14 | Q1735248009 | 5.34 ppb |
| 2017-08-14 | Q1735248004 | 5.41 ppb |
| 2017-08-14 | Q1735248010 | 5.43 ppb |
| 2017-08-14 | Q1735248005 | 8.76 ppb |
| 2017-11-08 | Q1757341004 | 6.83 ppb |
| 2017-11-08 | Q1757341005 | 6.57 ppb |
| 2017-11-08 | Q1757341001 | 6.50 ppb |
| 2017-11-08 | Q1757341006 | 6.66 ppb |
| 2017-11-08 | Q1757341002 | 6.54 ppb |
| 2017-11-08 | Q1757341007 | 6.09 ppb |
| 2017-11-08 | Q1757341003 | 4.03 ppb |
| 2017-11-08 | Q1757341008 | 7.46 ppb |