Dibromochloromethane
City of La Habra
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 3.85 ppb | 34 | 20 | ND - 47.0 ppb |
2015 | 2.02 ppb | 35 | 21 | ND - 9.90 ppb |
2016 | 3.01 ppb | 35 | 24 | ND - 10.00 ppb |
2017 | 2.82 ppb | 35 | 17 | ND - 14.6 ppb |
2018 | 4.35 ppb | 35 | 25 | ND - 15.8 ppb |
2019 | 8.13 ppb | 35 | 29 | ND - 38.8 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 |
---|---|---|
2014-01-17 | 3761-028-1141 | ND |
2014-01-17 | 3761-031-1107 | 47.0 ppb |
2014-02-13 | 3761-801-1414 | 6.20 ppb |
2014-02-13 | 3761-802-1328 | 4.80 ppb |
2014-02-13 | 3761-803-1341 | 8.00 ppb |
2014-02-13 | 3761-804-1425 | 5.70 ppb |
2014-02-13 | 3761-805-1403 | 11.1 ppb |
2014-02-13 | 3761-806-1441 | 1.80 ppb |
2014-02-13 | 3761-807-1237 | 6.70 ppb |
2014-02-13 | 3761-808-1520 | 9.70 ppb |
2014-02-21 | 3761-031-1128 | ND |
2014-04-14 | 3761-028-1412 | ND |
2014-04-16 | 3761-031-1250 | ND |
2014-05-15 | 3761-801-1021 | 1.70 ppb |
2014-05-15 | 3761-802-0954 | ND |
2014-05-15 | 3761-803-1000 | ND |
2014-05-15 | 3761-804-1029 | 1.60 ppb |
2014-05-15 | 3761-805-1008 | ND |
2014-05-15 | 3761-806-0945 | ND |
2014-05-15 | 3761-807-0936 | ND |
2014-05-15 | 3761-808-0926 | 2.30 ppb |
2014-07-21 | 3761-028-1429 | ND |
2014-07-21 | 3761-031-1508 | ND |
2014-08-14 | 3761-801-1025 | 3.20 ppb |
2014-08-14 | 3761-802-1059 | 3.10 ppb |
2014-08-14 | 3761-803-1045 | 3.20 ppb |
2014-08-14 | 3761-804-1034 | 3.30 ppb |
2014-08-14 | 3761-805-1052 | 3.40 ppb |
2014-08-14 | 3761-806-1005 | 2.20 ppb |
2014-08-14 | 3761-807-1013 | 3.30 ppb |
2014-08-14 | 3761-808-0955 | 2.70 ppb |
2014-09-04 | 3761-004-1124 | ND |
2014-09-04 | 3761-028-1151 | ND |
2014-09-04 | 3761-031-1055 | ND |
2015-02-13 | 3761-801-1242 | 1.60 ppb |
2015-02-13 | 3761-802-1220 | ND |
2015-02-13 | 3761-803-1227 | ND |
2015-02-13 | 3761-804-1250 | 1.70 ppb |
2015-02-13 | 3761-805-1233 | ND |
2015-02-13 | 3761-806-1303 | ND |
2015-02-13 | 3761-807-1315 | ND |
2015-02-13 | 3761-808-1330 | 3.10 ppb |
2015-05-14 | 3761-801-1230 | 1.90 ppb |
2015-05-14 | 3761-802-1030 | 9.90 ppb |
2015-05-14 | 3761-803-1115 | 1.70 ppb |
2015-05-14 | 3761-804-1215 | 1.80 ppb |
2015-05-14 | 3761-805-1130 | 8.30 ppb |
2015-05-14 | 3761-806-1145 | 2.00 ppb |
2015-05-14 | 3761-807-1045 | 4.20 ppb |
2015-05-14 | 3761-808-1030 | 8.30 ppb |
2015-08-14 | 3761-801-1150 | 1.10 ppb |
2015-08-14 | 3761-802-1225 | 2.10 ppb |
2015-08-14 | 3761-803-1240 | ND |
2015-08-14 | 3761-804-1205 | ND |
2015-08-14 | 3761-805-1305 | 2.70 ppb |
2015-08-14 | 3761-806-1320 | 4.90 ppb |
2015-08-14 | 3761-807-1135 | ND |
2015-08-14 | 3761-808-1120 | ND |
2015-09-21 | 3761-004-1400 | ND |
2015-09-21 | 3761-028-1515 | ND |
2015-09-21 | 3761-031-1450 | ND |
2015-11-09 | 3761-801-1354 | 1.50 ppb |
2015-11-09 | 3761-802-1318 | 1.60 ppb |
2015-11-09 | 3761-803-1329 | 1.50 ppb |
2015-11-09 | 3761-804-1403 | ND |
2015-11-09 | 3761-805-1344 | 1.50 ppb |
2015-11-09 | 3761-806-1418 | ND |
2015-11-09 | 3761-807-1250 | 5.50 ppb |
2015-11-09 | 3761-808-1322 | 3.80 ppb |
2016-02-08 | 3761-801-1236 | 2.30 ppb |
2016-02-08 | 3761-802-1317 | 1.70 ppb |
2016-02-08 | 3761-803-1312 | 1.80 ppb |
2016-02-08 | 3761-804-1243 | 2.10 ppb |
2016-02-08 | 3761-805-1256 | 2.60 ppb |
2016-02-08 | 3761-806-1330 | 1.40 ppb |
2016-02-08 | 3761-807-1339 | 4.30 ppb |
2016-02-08 | 3761-808-1121 | 7.30 ppb |
2016-05-09 | 3761-801-1425 | 6.70 ppb |
2016-05-09 | 3761-802-1400 | 4.80 ppb |
2016-05-09 | 3761-803-1415 | 6.70 ppb |
2016-05-09 | 3761-804-1455 | 7.60 ppb |
2016-05-09 | 3761-805-1430 | 10.00 ppb |
2016-05-09 | 3761-806-1505 | 4.50 ppb |
2016-05-09 | 3761-807-1300 | 8.80 ppb |
2016-05-09 | 3761-808-1140 | 9.00 ppb |
2016-08-08 | 3761-801-1353 | 3.40 ppb |
2016-08-08 | 3761-802-1311 | 2.50 ppb |
2016-08-08 | 3761-803-1320 | 3.00 ppb |
2016-08-08 | 3761-804-1410 | 3.20 ppb |
2016-08-08 | 3761-805-1329 | ND |
2016-08-08 | 3761-806-1419 | 4.40 ppb |
2016-08-08 | 3761-807-1122 | 3.10 ppb |
2016-08-08 | 3761-808-1220 | 2.10 ppb |
2016-09-16 | 3761-028-1125 | ND |
2016-09-16 | 3761-031-1100 | ND |
2016-10-04 | 3761-004-1530 | ND |
2016-11-09 | 3761-801-1030 | ND |
2016-11-09 | 3761-802-1102 | ND |
2016-11-09 | 3761-803-1054 | ND |
2016-11-09 | 3761-804-1035 | ND |
2016-11-09 | 3761-805-1042 | ND |
2016-11-09 | 3761-806-1115 | ND |
2016-11-09 | 3761-807-1020 | ND |
2016-11-09 | 3761-808-1134 | 2.20 ppb |
2017-02-13 | 3761-801-1326 | ND |
2017-02-13 | 3761-802-1148 | ND |
2017-02-13 | 3761-803-1302 | ND |
2017-02-13 | 3761-804-1336 | ND |
2017-02-13 | 3761-805-1315 | ND |
2017-02-13 | 3761-806-1357 | ND |
2017-02-13 | 3761-807-1213 | ND |
2017-02-13 | 3761-808-1105 | 6.60 ppb |
2017-05-09 | 3761-801-1038 | 3.20 ppb |
2017-05-09 | 3761-802-1112 | 2.70 ppb |
2017-05-09 | 3761-803-1103 | 2.90 ppb |
2017-05-09 | 3761-804-1047 | 3.30 ppb |
2017-05-09 | 3761-805-1054 | 3.60 ppb |
2017-05-09 | 3761-806-1022 | 3.30 ppb |
2017-05-09 | 3761-807-1029 | 12.4 ppb |
2017-05-09 | 3761-808-1010 | 14.6 ppb |
2017-08-07 | 3761-801-1400 | 3.00 ppb |
2017-08-07 | 3761-802-1310 | 6.40 ppb |
2017-08-07 | 3761-803-1316 | 8.30 ppb |
2017-08-07 | 3761-804-1413 | 4.00 ppb |
2017-08-07 | 3761-805-1330 | 6.10 ppb |
2017-08-07 | 3761-806-1428 | 4.70 ppb |
2017-08-07 | 3761-807-1102 | 7.70 ppb |
2017-08-07 | 3761-808-1151 | 5.80 ppb |
2017-09-25 | 3761-028-1145 | ND |
2017-09-27 | 3761-031-1435 | ND |
2017-11-13 | 3761-801-1304 | ND |
2017-11-13 | 3761-802-1221 | ND |
2017-11-13 | 3761-803-1228 | ND |
2017-11-13 | 3761-804-1320 | ND |
2017-11-13 | 3761-805-1248 | ND |
2017-11-13 | 3761-806-1343 | ND |
2017-11-13 | 3761-807-1043 | ND |
2017-11-13 | 3761-808-1127 | ND |
2017-11-17 | 3761-004-1152 | ND |
2018-02-12 | 3761-801-1306 | 4.70 ppb |
2018-02-12 | 3761-802-1222 | ND |
2018-02-12 | 3761-803-1234 | ND |
2018-02-12 | 3761-804-1315 | 5.30 ppb |
2018-02-12 | 3761-805-1249 | 6.20 ppb |
2018-02-12 | 3761-806-1336 | 4.10 ppb |
2018-02-12 | 3761-807-1148 | ND |
2018-02-12 | 3761-808-1351 | 2.30 ppb |
2018-05-07 | 3761-801-1226 | 10.7 ppb |
2018-05-07 | 3761-802-1242 | 10.2 ppb |
2018-05-07 | 3761-803-1256 | 13.9 ppb |
2018-05-07 | 3761-804-1337 | 11.4 ppb |
2018-05-07 | 3761-805-1311 | 15.8 ppb |
2018-05-07 | 3761-806-1406 | 2.00 ppb |
2018-05-07 | 3761-807-1212 | 2.40 ppb |
2018-05-07 | 3761-808-1101 | 2.90 ppb |
2018-08-16 | 3761-801-0944 | 8.60 ppb |
2018-08-16 | 3761-802-1018 | 7.30 ppb |
2018-08-16 | 3761-803-1010 | 7.50 ppb |
2018-08-16 | 3761-804-0955 | 8.50 ppb |
2018-08-16 | 3761-805-1003 | 4.90 ppb |
2018-08-16 | 3761-806-0934 | 4.30 ppb |
2018-08-16 | 3761-807-0926 | 6.30 ppb |
2018-08-16 | 3761-808-0913 | 8.60 ppb |
2018-09-14 | 3761-004-1140 | ND |
2018-09-14 | 3761-028-1111 | ND |
2018-09-14 | 3761-031-1042 | ND |
2018-11-05 | 3761-801-1305 | ND |
2018-11-05 | 3761-802-1409 | 1.000 ppb |
2018-11-05 | 3761-803-1353 | 1.000 ppb |
2018-11-05 | 3761-804-1320 | ND |
2018-11-05 | 3761-805-1329 | 1.10 ppb |
2018-11-05 | 3761-806-1216 | ND |
2018-11-05 | 3761-807-1229 | ND |
2018-11-05 | 3761-808-1050 | 1.20 ppb |
2019-02-04 | 3761-801-1403 | 1.30 ppb |
2019-02-04 | 3761-802-1252 | ND |
2019-02-04 | 3761-803-1308 | 1.40 ppb |
2019-02-04 | 3761-804-1151 | 1.000 ppb |
2019-02-04 | 3761-805-1336 | 2.80 ppb |
2019-02-04 | 3761-806-1152 | ND |
2019-02-04 | 3761-807-1430 | ND |
2019-02-04 | 3761-808-1033 | 1.90 ppb |
2019-05-08 | 3761-801-1100 | 10.5 ppb |
2019-05-08 | 3761-802-1022 | 3.80 ppb |
2019-05-08 | 3761-803-1031 | 6.00 ppb |
2019-05-08 | 3761-804-1048 | 10.3 ppb |
2019-05-08 | 3761-805-1040 | 6.40 ppb |
2019-05-08 | 3761-806-1003 | 2.80 ppb |
2019-05-08 | 3761-807-1012 | 3.80 ppb |
2019-05-08 | 3761-808-0951 | 4.30 ppb |
2019-08-05 | 3761-801-1354 | 14.8 ppb |
2019-08-05 | 3761-802-1240 | 5.30 ppb |
2019-08-05 | 3761-803-1256 | 8.20 ppb |
2019-08-05 | 3761-804-1343 | 13.6 ppb |
2019-08-05 | 3761-805-1304 | 11.1 ppb |
2019-08-05 | 3761-806-1133 | 4.10 ppb |
2019-08-05 | 3761-807-1421 | 7.20 ppb |
2019-08-05 | 3761-808-1433 | 3.50 ppb |
2019-09-11 | 3761-004-1140 | ND |
2019-09-11 | 3761-028-1025 | ND |
2019-09-11 | 3761-031-1100 | ND |
2019-11-04 | 3761-801-1307 | 35.6 ppb |
2019-11-04 | 3761-802-1412 | 11.0 ppb |
2019-11-04 | 3761-803-1400 | 23.6 ppb |
2019-11-04 | 3761-804-1322 | 38.8 ppb |
2019-11-04 | 3761-805-1340 | 32.1 ppb |
2019-11-04 | 3761-806-1213 | 8.00 ppb |
2019-11-04 | 3761-807-1227 | 7.30 ppb |
2019-11-04 | 3761-808-1040 | 3.90 ppb |