Dibromochloromethane
Cal-water Service Company - Marysville
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 | 0.239 ppb | 70 | 9 | ND - 3.17 ppb |
2015 | 0.416 ppb | 58 | 14 | ND - 4.28 ppb |
2016 | 0.363 ppb | 48 | 12 | ND - 2.53 ppb |
2017 | 0.269 ppb | 48 | 13 | ND - 2.69 ppb |
2018 | 0.189 ppb | 52 | 10 | ND - 1.46 ppb |
2019 | 0.305 ppb | 48 | 11 | ND - 2.08 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 |
---|---|---|
2014-01-06 | 5701-011-0952 | ND |
2014-01-06 | 5701-011-0956 | ND |
2014-01-06 | 5701-023-1004 | ND |
2014-01-13 | 5701-011-1327 | ND |
2014-01-22 | 5701-013-1140 | ND |
2014-02-11 | 5701-011-0914 | ND |
2014-02-18 | 5701-010-1045 | ND |
2014-02-26 | 5701-015-1006 | ND |
2014-03-03 | 5701-011-1530 | ND |
2014-03-04 | 5701-027-1448 | 1.11 ppb |
2014-03-04 | 5701-028-1516 | 1.03 ppb |
2014-03-04 | 5701-029-1438 | ND |
2014-04-07 | 5701-011-1521 | ND |
2014-04-15 | 5701-013-1501 | ND |
2014-05-01 | 5810-011-1115 | ND |
2014-05-01 | 5810-023-1123 | ND |
2014-05-06 | 5701-011-0938 | ND |
2014-05-12 | 5701-011-0950 | ND |
2014-05-19 | 5701-011-0852 | ND |
2014-05-19 | 5701-015-1117 | ND |
2014-05-27 | 5701-011-1156 | ND |
2014-06-02 | 5701-011-0847 | ND |
2014-06-02 | 5701-027-1426 | 3.12 ppb |
2014-06-02 | 5701-028-1414 | 0.960 ppb |
2014-06-02 | 5701-029-1442 | 3.17 ppb |
2014-06-10 | 5701-011-0905 | ND |
2014-06-16 | 5701-011-0904 | ND |
2014-06-23 | 5701-011-1421 | ND |
2014-06-23 | 5810-011-1436 | ND |
2014-06-23 | 5810-023-1427 | 2.60 ppb |
2014-07-01 | 5701-011-1312 | ND |
2014-07-07 | 5701-011-1344 | ND |
2014-07-14 | 5701-011-0832 | ND |
2014-07-21 | 5701-011-0913 | ND |
2014-07-22 | 5701-013-1033 | ND |
2014-07-22 | 5701-016-1145 | ND |
2014-07-28 | 5701-011-0912 | ND |
2014-08-04 | 5701-011-1003 | ND |
2014-08-11 | 5810-011-0941 | ND |
2014-08-11 | 5810-023-0946 | ND |
2014-08-18 | 5701-011-0913 | ND |
2014-08-26 | 5701-011-0935 | ND |
2014-09-02 | 5701-011-0900 | ND |
2014-09-03 | 5701-027-1510 | 1.65 ppb |
2014-09-03 | 5701-028-1457 | ND |
2014-09-03 | 5701-029-1546 | ND |
2014-09-08 | 5701-011-0959 | ND |
2014-09-15 | 5701-011-0951 | ND |
2014-09-22 | 5701-011-0943 | ND |
2014-09-29 | 5701-011-0904 | ND |
2014-10-06 | 5701-011-0907 | ND |
2014-10-13 | 5701-011-0901 | ND |
2014-10-20 | 9590-011-0916 | ND |
2014-10-20 | 9590-013-1403 | ND |
2014-10-27 | 5701-011-0930 | ND |
2014-11-03 | 5701-011-1458 | ND |
2014-11-12 | 5701-011-0848 | ND |
2014-11-16 | 5701-015-1042 | ND |
2014-11-17 | 5701-011-1029 | ND |
2014-11-24 | 5701-011-1009 | ND |
2014-12-01 | 5701-011-0934 | ND |
2014-12-03 | 5701-027-1257 | 1.69 ppb |
2014-12-03 | 5701-028-1316 | 1.38 ppb |
2014-12-03 | 5701-029-1239 | ND |
2014-12-03 | 5701-030-1226 | ND |
2014-12-08 | 5701-011-1032 | ND |
2014-12-15 | 5701-011-1011 | ND |
2014-12-22 | 9590-011-0954 | ND |
2014-12-30 | 9590-011-1043 | ND |
2014-12-30 | 9590-023-1046 | ND |
2015-01-05 | 5701-011-0947 | ND |
2015-01-05 | 5701-023-0950 | ND |
2015-01-13 | 5701-011-1003 | ND |
2015-01-13 | 5701-023-1007 | ND |
2015-01-20 | 5701-011-1311 | ND |
2015-01-20 | 5701-023-1315 | ND |
2015-01-22 | 5701-009-1339 | ND |
2015-01-22 | 5701-013-1356 | ND |
2015-01-26 | 5701-011-1402 | ND |
2015-01-26 | 5701-023-1408 | ND |
2015-02-02 | 5701-011-0945 | ND |
2015-02-02 | 5701-023-0948 | ND |
2015-02-18 | 5701-015-1032 | ND |
2015-03-02 | 5701-011-1316 | ND |
2015-03-02 | 5701-023-1319 | ND |
2015-03-02 | 5701-027-0820 | 1.98 ppb |
2015-03-02 | 5701-028-0820 | 1.22 ppb |
2015-03-02 | 5701-029-0820 | 2.01 ppb |
2015-03-02 | 5701-030-0820 | 0.630 ppb |
2015-04-06 | 5701-011-1025 | ND |
2015-04-06 | 5701-023-1014 | ND |
2015-04-20 | 5701-013-1509 | ND |
2015-05-04 | 9590-011-0841 | ND |
2015-05-04 | 9590-023-0846 | ND |
2015-05-18 | 5701-015-1615 | ND |
2015-06-01 | 5701-011-0843 | ND |
2015-06-01 | 5701-023-0847 | ND |
2015-06-02 | 5701-027-0847 | 3.50 ppb |
2015-06-02 | 5701-028-0847 | 2.16 ppb |
2015-06-02 | 5701-029-0847 | 0.510 ppb |
2015-06-02 | 5701-030-0847 | ND |
2015-07-01 | 5701-011-0905 | ND |
2015-07-01 | 5701-023-0857 | ND |
2015-07-22 | 5701-012-1020 | ND |
2015-07-22 | 5701-013-0947 | ND |
2015-07-22 | 5701-016-1631 | ND |
2015-08-04 | 5701-011-1110 | ND |
2015-08-04 | 5701-023-1113 | ND |
2015-08-19 | 5701-015-1102 | ND |
2015-09-08 | 5701-011-0822 | ND |
2015-09-08 | 5701-023-0815 | ND |
2015-09-09 | 5701-027-0753 | 4.28 ppb |
2015-09-09 | 5701-028-0752 | 1.88 ppb |
2015-09-09 | 5701-029-0754 | 1.83 ppb |
2015-09-09 | 5701-030-0754 | 0.600 ppb |
2015-10-05 | 5701-011-0823 | ND |
2015-10-05 | 5701-023-0813 | ND |
2015-10-19 | 5701-008-1318 | ND |
2015-10-19 | 5701-013-1308 | ND |
2015-11-02 | 5701-011-1110 | ND |
2015-11-02 | 5701-023-1113 | ND |
2015-11-16 | 5701-015-1017 | ND |
2015-12-01 | 5701-011-1317 | ND |
2015-12-01 | 5701-023-1321 | ND |
2015-12-09 | 5810-027-1427 | 1.20 ppb |
2015-12-09 | 5810-028-1408 | 1.20 ppb |
2015-12-09 | 5810-029-1319 | 1.10 ppb |
2015-12-09 | 5810-030-1349 | ND |
2016-01-04 | 5701-011-0840 | ND |
2016-01-04 | 5701-023-0844 | ND |
2016-01-21 | 5701-013-1306 | ND |
2016-02-01 | 5701-011-0904 | ND |
2016-02-01 | 5701-023-0910 | ND |
2016-03-02 | 5701-011-1016 | ND |
2016-03-02 | 5701-023-1018 | ND |
2016-03-07 | 5701-027-1452 | 1.95 ppb |
2016-03-07 | 5701-028-1438 | 1.19 ppb |
2016-03-07 | 5701-029-1509 | 2.53 ppb |
2016-03-07 | 5701-030-1525 | 0.560 ppb |
2016-04-04 | 5701-011-0833 | ND |
2016-04-04 | 5701-023-0843 | ND |
2016-04-18 | 5701-013-1258 | ND |
2016-05-02 | 5701-011-0858 | ND |
2016-05-02 | 5701-023-0901 | ND |
2016-06-06 | 5701-011-0829 | ND |
2016-06-06 | 5701-023-0814 | ND |
2016-06-08 | 5701-027-0906 | 2.45 ppb |
2016-06-08 | 5701-028-0906 | 1.76 ppb |
2016-06-08 | 5701-029-0906 | ND |
2016-06-08 | 5701-030-0906 | ND |
2016-06-22 | 5701-015-1333 | ND |
2016-07-05 | 5701-011-1326 | ND |
2016-07-05 | 5701-023-1329 | ND |
2016-07-19 | 5701-013-1606 | ND |
2016-07-20 | 5701-015-1043 | ND |
2016-07-20 | 5701-016-1007 | ND |
2016-08-01 | 5701-011-0931 | ND |
2016-08-01 | 5701-023-0936 | ND |
2016-09-07 | 5701-027-0834 | 0.730 ppb |
2016-09-07 | 5701-028-0834 | 1.74 ppb |
2016-09-07 | 5701-029-0834 | ND |
2016-09-07 | 5701-030-0834 | 0.590 ppb |
2016-09-12 | 5701-011-0904 | ND |
2016-09-12 | 5701-023-0907 | ND |
2016-10-03 | 5701-011-1109 | ND |
2016-10-03 | 5701-023-1100 | ND |
2016-10-19 | 5701-013-1209 | ND |
2016-11-07 | 5701-011-0940 | ND |
2016-11-07 | 5701-023-0943 | ND |
2016-11-15 | 5701-015-1310 | ND |
2016-12-05 | 5701-011-0826 | ND |
2016-12-05 | 5701-023-0829 | ND |
2016-12-05 | 5701-027-1254 | 1.37 ppb |
2016-12-05 | 5701-028-1254 | 1.16 ppb |
2016-12-05 | 5701-029-1254 | 1.41 ppb |
2016-12-05 | 5701-030-1254 | ND |
2017-01-05 | 5701-011-1017 | ND |
2017-01-05 | 5701-023-1023 | ND |
2017-01-19 | 5701-010-0931 | ND |
2017-01-25 | 5701-013-1003 | ND |
2017-02-06 | 5701-011-1002 | ND |
2017-02-06 | 5701-023-1006 | ND |
2017-03-06 | 5701-011-1112 | ND |
2017-03-06 | 5701-023-1115 | ND |
2017-03-08 | 5701-027-0917 | 1.35 ppb |
2017-03-08 | 5701-028-0917 | 1.17 ppb |
2017-03-08 | 5701-029-0917 | 0.600 ppb |
2017-03-08 | 5701-030-0917 | ND |
2017-04-03 | 5701-011-1022 | ND |
2017-04-03 | 5701-023-1026 | ND |
2017-04-13 | 5701-013-1120 | ND |
2017-05-01 | 5701-011-1020 | ND |
2017-05-01 | 5701-023-1022 | ND |
2017-05-25 | 5701-015-1409 | ND |
2017-06-05 | 5701-011-0937 | ND |
2017-06-05 | 5701-023-0940 | ND |
2017-06-05 | 5701-027-0916 | 0.780 ppb |
2017-06-05 | 5701-028-0916 | 0.620 ppb |
2017-06-05 | 5701-029-0916 | 0.660 ppb |
2017-06-05 | 5701-030-0916 | 0.550 ppb |
2017-07-06 | 5701-011-1030 | ND |
2017-07-06 | 5701-023-1034 | ND |
2017-07-18 | 9590-013-1410 | ND |
2017-07-18 | 9590-016-1350 | ND |
2017-08-07 | 5701-011-1051 | ND |
2017-08-07 | 5701-023-1043 | ND |
2017-08-14 | 5701-015-1420 | ND |
2017-09-05 | 5701-027-0835 | 2.69 ppb |
2017-09-05 | 5701-028-0835 | 0.820 ppb |
2017-09-05 | 5701-029-0835 | 0.740 ppb |
2017-09-05 | 5701-030-0835 | 0.510 ppb |
2017-09-11 | 5701-011-0928 | ND |
2017-09-11 | 5701-023-0930 | ND |
2017-10-02 | 5701-011-1018 | ND |
2017-10-02 | 5701-023-1021 | ND |
2017-10-17 | 5701-013-1130 | ND |
2017-11-06 | 5701-011-0907 | ND |
2017-11-06 | 5701-023-0911 | ND |
2017-12-04 | 5701-011-1108 | ND |
2017-12-04 | 5701-023-1112 | ND |
2017-12-06 | 5810-027-1411 | 1.10 ppb |
2017-12-06 | 5810-028-1358 | 1.30 ppb |
2017-12-06 | 5810-029-1504 | ND |
2017-12-06 | 5810-030-1447 | ND |
2018-01-02 | 5701-011-0934 | ND |
2018-01-02 | 5701-023-0934 | ND |
2018-01-21 | 5810-013-0830 | ND |
2018-02-06 | 5701-011-1325 | ND |
2018-02-06 | 5701-023-1328 | ND |
2018-02-14 | 5701-009-1448 | ND |
2018-03-05 | 5701-011-1053 | ND |
2018-03-05 | 5701-023-1103 | ND |
2018-03-07 | 5810-027-1456 | 1.10 ppb |
2018-03-07 | 5810-028-1511 | ND |
2018-03-07 | 5810-029-1439 | ND |
2018-03-07 | 5810-030-1422 | ND |
2018-03-14 | 5701-015-1442 | ND |
2018-04-09 | 5810-011-1019 | ND |
2018-04-09 | 5810-023-1026 | ND |
2018-04-16 | 9590-013-1006 | ND |
2018-05-07 | 5701-011-1116 | ND |
2018-05-07 | 5701-023-1119 | ND |
2018-05-14 | 5701-015-1451 | ND |
2018-06-04 | 5701-027-1425 | 1.46 ppb |
2018-06-04 | 5701-028-1406 | 0.670 ppb |
2018-06-04 | 5701-029-1453 | 0.750 ppb |
2018-06-04 | 5701-030-1442 | ND |
2018-06-05 | 5810-011-1347 | ND |
2018-06-05 | 5810-023-1356 | ND |
2018-07-02 | 5810-011-0927 | ND |
2018-07-02 | 5810-023-0934 | ND |
2018-08-06 | 5701-011-1107 | ND |
2018-08-06 | 5701-013-1321 | ND |
2018-08-06 | 5701-015-0948 | ND |
2018-08-06 | 5701-016-1554 | ND |
2018-08-06 | 5701-023-1114 | ND |
2018-08-08 | 5701-012-1344 | ND |
2018-09-04 | 5701-027-0656 | 1.44 ppb |
2018-09-04 | 5701-028-0656 | 0.980 ppb |
2018-09-04 | 5701-029-0656 | 0.500 ppb |
2018-09-04 | 5701-030-0656 | ND |
2018-09-10 | 5701-011-1010 | ND |
2018-09-10 | 5701-023-1014 | ND |
2018-10-01 | 5701-011-1350 | ND |
2018-10-01 | 5701-023-1357 | ND |
2018-11-05 | 5701-011-0840 | ND |
2018-11-05 | 5701-023-0844 | ND |
2018-11-19 | 5701-008-1515 | ND |
2018-11-19 | 5701-013-1528 | ND |
2018-11-26 | 5810-015-1134 | ND |
2018-12-03 | 5810-011-1010 | ND |
2018-12-03 | 5810-023-1015 | ND |
2018-12-06 | 5701-027-0813 | 1.23 ppb |
2018-12-06 | 5701-028-0813 | 1.05 ppb |
2018-12-06 | 5701-029-0813 | ND |
2018-12-06 | 5701-030-0813 | 0.650 ppb |
2019-01-08 | 5810-011-1358 | ND |
2019-01-08 | 5810-023-1410 | ND |
2019-01-21 | 9590-013-1050 | ND |
2019-02-04 | 5701-011-1358 | ND |
2019-02-04 | 5701-023-1408 | ND |
2019-03-04 | 5810-011-1323 | ND |
2019-03-04 | 5810-023-1315 | ND |
2019-03-04 | 5701-027-1500 | 2.08 ppb |
2019-03-04 | 5701-028-1446 | 1.88 ppb |
2019-03-04 | 5701-029-1545 | 1.64 ppb |
2019-03-04 | 5701-030-1536 | 1.85 ppb |
2019-04-02 | 5701-011-1325 | ND |
2019-04-02 | 5701-023-1335 | ND |
2019-04-11 | 5810-013-1602 | ND |
2019-05-06 | 5810-011-0944 | ND |
2019-05-06 | 5810-023-0948 | ND |
2019-05-16 | 5701-015-0900 | ND |
2019-06-03 | 5701-011-1435 | ND |
2019-06-03 | 5701-023-1439 | ND |
2019-06-04 | 5701-027-0925 | 0.880 ppb |
2019-06-04 | 5701-028-0925 | 0.680 ppb |
2019-06-04 | 5701-029-0925 | ND |
2019-06-04 | 5701-030-0925 | ND |
2019-07-01 | 5701-011-1106 | ND |
2019-07-01 | 5701-023-1110 | ND |
2019-07-16 | 5701-013-1343 | ND |
2019-07-23 | 5701-016-1435 | ND |
2019-08-05 | 5701-011-0922 | ND |
2019-08-05 | 5701-023-0925 | ND |
2019-08-19 | 5701-015-1353 | ND |
2019-09-04 | 5701-011-1357 | ND |
2019-09-04 | 5701-023-1400 | ND |
2019-09-04 | 5701-027-1154 | 1.42 ppb |
2019-09-04 | 5701-028-1142 | 0.950 ppb |
2019-09-04 | 5701-029-1448 | 1.01 ppb |
2019-09-04 | 5701-030-1522 | 1.07 ppb |
2019-10-02 | 5701-011-1609 | ND |
2019-10-02 | 5701-023-1602 | ND |
2019-10-16 | 5701-013-1024 | ND |
2019-11-03 | 5701-011-1055 | ND |
2019-11-03 | 5701-023-1101 | ND |
2019-11-18 | 5701-015-0924 | ND |
2019-12-02 | 5701-011-1100 | ND |
2019-12-02 | 5701-023-1108 | ND |
2019-12-04 | 5701-027-1419 | ND |
2019-12-04 | 5701-028-1355 | ND |
2019-12-04 | 5701-029-1513 | 1.16 ppb |
2019-12-04 | 5701-030-1456 | ND |