Bromoform
Cucamonga Valley Water District
Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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 | 9.28 ppb | 60 | 23 | ND - 46.0 ppb |
2015 | 9.47 ppb | 37 | 27 | ND - 45.0 ppb |
2016 | 7.48 ppb | 35 | 19 | ND - 44.0 ppb |
2017 | 4.56 ppb | 52 | 26 | ND - 46.0 ppb |
2018 | 5.94 ppb | 61 | 28 | ND - 23.0 ppb |
2019 | 9.66 ppb | 34 | 24 | ND - 40.0 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.5 ppb
The EWG Health Guideline of 0.5 ppb for bromoform 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 |
---|---|---|
2014-01-09 | 9590-601-1200 | 24.0 ppb |
2014-01-09 | 9590-602-1050 | 20.0 ppb |
2014-01-09 | 9590-603-1145 | 21.0 ppb |
2014-01-09 | 9590-604-0920 | 34.0 ppb |
2014-01-09 | 9590-605-0940 | 35.0 ppb |
2014-01-09 | 9590-606-1125 | 46.0 ppb |
2014-01-09 | 9590-607-1110 | 21.0 ppb |
2014-01-09 | 9590-608-1010 | ND |
2014-02-27 | 3761-038-1255 | ND |
2014-04-01 | 9590-601-1207 | 38.0 ppb |
2014-04-01 | 9590-602-1049 | ND |
2014-04-01 | 9590-603-1145 | 25.0 ppb |
2014-04-01 | 9590-604-0855 | ND |
2014-04-01 | 9590-605-0912 | ND |
2014-04-01 | 9590-606-1100 | 16.0 ppb |
2014-04-01 | 9590-607-1006 | 5.90 ppb |
2014-04-01 | 9590-608-0945 | ND |
2014-05-29 | 3761-033-0940 | ND |
2014-06-05 | 3761-027-1045 | ND |
2014-06-19 | 3761-050-1035 | ND |
2014-06-19 | 3761-051-0000 | ND |
2014-06-19 | 3761-052-0930 | ND |
2014-06-19 | 3761-053-0925 | ND |
2014-06-19 | 3761-054-0940 | ND |
2014-06-26 | 3761-008-1015 | ND |
2014-06-26 | 3761-010-1103 | ND |
2014-06-26 | 3761-029-1052 | ND |
2014-06-26 | 3761-034-1042 | ND |
2014-06-26 | 3761-035-1007 | ND |
2014-06-26 | 3761-038-1022 | ND |
2014-07-07 | 9590-601-1040 | 28.0 ppb |
2014-07-07 | 9590-602-0925 | 12.0 ppb |
2014-07-07 | 9590-603-0812 | 34.0 ppb |
2014-07-07 | 9590-604-0825 | ND |
2014-07-07 | 9590-605-0840 | ND |
2014-07-07 | 9590-606-1010 | 28.0 ppb |
2014-07-07 | 9590-607-0950 | 14.0 ppb |
2014-07-07 | 9590-608-0905 | ND |
2014-07-10 | 3761-002-1103 | ND |
2014-07-10 | 3761-003-1052 | ND |
2014-07-10 | 3761-004-1022 | ND |
2014-07-10 | 3761-025-1042 | ND |
2014-07-10 | 3761-037-1007 | ND |
2014-07-10 | 3761-042-1015 | ND |
2014-08-05 | 3761-055-1150 | ND |
2014-08-14 | 3761-001-0917 | ND |
2014-08-14 | 3761-022-0842 | ND |
2014-08-18 | 3761-033-1050 | ND |
2014-09-04 | 3761-027-1010 | ND |
2014-10-06 | 9590-601-1134 | 34.0 ppb |
2014-10-06 | 9590-602-0835 | 11.0 ppb |
2014-10-06 | 9590-603-1120 | 40.0 ppb |
2014-10-06 | 9590-604-1102 | 5.80 ppb |
2014-10-06 | 9590-605-1040 | 6.90 ppb |
2014-10-06 | 9590-606-0820 | 43.0 ppb |
2014-10-06 | 9590-607-0850 | 14.0 ppb |
2014-10-06 | 9590-608-0920 | ND |
2014-10-16 | 3761-039-1050 | ND |
2014-11-20 | 3761-033-1145 | ND |
2014-12-09 | 3761-027-1040 | ND |
2015-01-05 | 9590-601-1245 | 21.0 ppb |
2015-01-05 | 9590-602-0905 | 1.40 ppb |
2015-01-05 | 9590-603-1220 | 36.0 ppb |
2015-01-05 | 9590-604-1150 | 7.60 ppb |
2015-01-05 | 9590-605-1130 | 8.20 ppb |
2015-01-05 | 9590-606-1110 | 4.20 ppb |
2015-01-05 | 9590-607-1015 | 5.80 ppb |
2015-01-05 | 9590-608-1030 | ND |
2015-03-05 | 3761-027-0855 | ND |
2015-04-01 | 9590-601-1155 | 20.0 ppb |
2015-04-01 | 9590-602-1109 | 1.10 ppb |
2015-04-01 | 9590-603-0835 | 28.0 ppb |
2015-04-01 | 9590-604-0852 | 2.10 ppb |
2015-04-01 | 9590-605-0940 | 2.80 ppb |
2015-04-01 | 9590-606-1125 | 26.0 ppb |
2015-04-01 | 9590-607-1057 | 8.80 ppb |
2015-04-01 | 9590-608-1012 | ND |
2015-05-13 | 3761-055-1050 | ND |
2015-07-02 | 9590-601-1050 | 16.0 ppb |
2015-07-02 | 9590-602-1015 | 1.10 ppb |
2015-07-02 | 9590-603-0830 | 17.0 ppb |
2015-07-02 | 9590-604-0835 | 1.80 ppb |
2015-07-02 | 9590-605-0840 | 2.10 ppb |
2015-07-02 | 9590-606-1030 | 9.70 ppb |
2015-07-02 | 9590-607-1005 | 3.50 ppb |
2015-07-02 | 9590-608-0945 | ND |
2015-07-09 | 3761-017-1100 | ND |
2015-08-20 | 3761-055-0925 | ND |
2015-10-06 | 9590-601-1300 | 27.0 ppb |
2015-10-06 | 9590-602-0930 | 22.0 ppb |
2015-10-06 | 9590-603-0800 | 45.0 ppb |
2015-10-06 | 9590-604-0815 | ND |
2015-10-06 | 9590-605-0840 | 4.90 ppb |
2015-10-06 | 9590-606-1020 | 21.0 ppb |
2015-10-06 | 9590-607-0955 | 6.20 ppb |
2015-10-06 | 9590-608-0900 | ND |
2015-11-23 | 3761-055-0900 | ND |
2016-01-06 | 9590-601-1335 | 10.00 ppb |
2016-01-06 | 9590-602-0930 | ND |
2016-01-06 | 9590-603-0810 | 5.40 ppb |
2016-01-06 | 9590-604-0815 | ND |
2016-01-06 | 9590-605-0840 | ND |
2016-01-06 | 9590-606-1020 | ND |
2016-01-06 | 9590-607-0955 | 1.40 ppb |
2016-01-06 | 9590-608-0900 | ND |
2016-02-11 | 3761-055-1040 | ND |
2016-04-05 | 9590-601-1145 | 21.0 ppb |
2016-04-05 | 9590-602-1035 | ND |
2016-04-05 | 9590-603-0824 | 28.0 ppb |
2016-04-05 | 9590-604-0842 | 2.80 ppb |
2016-04-05 | 9590-605-0910 | 9.60 ppb |
2016-04-05 | 9590-606-1107 | 5.70 ppb |
2016-04-05 | 9590-607-1050 | 6.20 ppb |
2016-04-05 | 9590-608-0945 | 5.20 ppb |
2016-07-06 | 9590-601-1310 | 23.0 ppb |
2016-07-06 | 9590-602-1035 | ND |
2016-07-06 | 9590-603-0820 | 44.0 ppb |
2016-07-06 | 9590-604-0826 | 1.000 ppb |
2016-07-06 | 9590-605-0840 | 1.20 ppb |
2016-07-06 | 9590-606-1155 | 36.0 ppb |
2016-07-06 | 9590-607-1130 | ND |
2016-07-06 | 9590-608-0925 | ND |
2016-07-21 | 3761-017-1120 | ND |
2016-10-05 | 9590-601-1120 | 13.0 ppb |
2016-10-05 | 9590-602-1055 | ND |
2016-10-05 | 9590-603-0810 | 23.0 ppb |
2016-10-05 | 9590-604-0825 | ND |
2016-10-05 | 9590-605-0855 | 1.30 ppb |
2016-10-05 | 9590-606-1030 | 24.0 ppb |
2016-10-05 | 9590-607-1010 | ND |
2016-10-05 | 9590-608-0910 | ND |
2016-11-23 | 3761-035-1440 | ND |
2017-01-09 | 9590-601-1120 | 23.0 ppb |
2017-01-09 | 9590-602-1055 | 10.00 ppb |
2017-01-09 | 9590-603-0810 | 46.0 ppb |
2017-01-09 | 9590-604-0825 | 23.0 ppb |
2017-01-09 | 9590-605-0855 | 15.0 ppb |
2017-01-09 | 9590-606-1030 | 45.0 ppb |
2017-01-09 | 9590-607-1010 | 19.0 ppb |
2017-01-09 | 9590-608-0910 | ND |
2017-04-05 | 9590-601-1100 | 1.80 ppb |
2017-04-05 | 9590-602-0955 | 1.40 ppb |
2017-04-05 | 9590-603-1045 | 1.80 ppb |
2017-04-05 | 9590-604-0827 | 2.00 ppb |
2017-04-05 | 9590-605-0845 | 1.90 ppb |
2017-04-05 | 9590-606-1020 | 1.60 ppb |
2017-04-05 | 9590-607-0935 | 2.10 ppb |
2017-04-05 | 9590-608-0915 | ND |
2017-06-02 | 3761-027-0918 | ND |
2017-06-14 | 3761-035-0930 | ND |
2017-06-14 | 3761-038-1026 | ND |
2017-06-14 | 3761-039-0959 | ND |
2017-06-15 | 3761-008-0931 | ND |
2017-06-15 | 3761-033-1047 | ND |
2017-06-15 | 3761-034-0910 | ND |
2017-06-19 | 3761-042-0859 | ND |
2017-06-19 | 3761-053-0908 | ND |
2017-06-22 | 3761-003-0806 | ND |
2017-06-22 | 3761-025-0818 | ND |
2017-06-22 | 3761-052-0913 | ND |
2017-06-22 | 3761-053-0902 | ND |
2017-06-26 | 3761-002-0929 | ND |
2017-06-26 | 3761-054-1041 | ND |
2017-07-03 | 3761-055-1041 | ND |
2017-07-06 | 9590-601-1113 | 3.30 ppb |
2017-07-06 | 9590-602-1028 | ND |
2017-07-06 | 9590-603-1059 | 3.80 ppb |
2017-07-06 | 9590-604-0913 | ND |
2017-07-06 | 9590-605-0927 | ND |
2017-07-06 | 9590-606-1040 | 4.10 ppb |
2017-07-06 | 9590-607-1014 | 1.20 ppb |
2017-07-06 | 9590-608-0955 | ND |
2017-07-12 | 3761-017-1408 | ND |
2017-07-13 | 3761-010-1305 | ND |
2017-07-13 | 3761-029-1319 | ND |
2017-07-17 | 3761-004-1231 | ND |
2017-10-05 | 9590-601-1241 | 3.50 ppb |
2017-10-05 | 9590-602-1140 | 3.30 ppb |
2017-10-05 | 9590-603-1218 | 4.10 ppb |
2017-10-05 | 9590-604-1016 | 4.20 ppb |
2017-10-05 | 9590-605-1035 | 4.40 ppb |
2017-10-05 | 9590-606-1152 | 4.10 ppb |
2017-10-05 | 9590-607-1125 | 4.10 ppb |
2017-10-05 | 9590-608-1059 | 3.60 ppb |
2018-01-11 | 9590-601-1201 | 12.0 ppb |
2018-01-11 | 9590-602-1058 | 5.80 ppb |
2018-01-11 | 9590-603-1138 | 18.0 ppb |
2018-01-11 | 9590-604-0913 | ND |
2018-01-11 | 9590-605-0933 | ND |
2018-01-11 | 9590-606-1115 | 11.0 ppb |
2018-01-11 | 9590-607-1038 | 9.40 ppb |
2018-01-11 | 9590-608-1019 | 10.00 ppb |
2018-03-14 | 3761-016-1008 | ND |
2018-03-14 | 3761-023-1149 | ND |
2018-03-28 | 3761-024-0931 | ND |
2018-04-05 | 9590-601-1121 | ND |
2018-04-05 | 9590-602-1028 | 1.30 ppb |
2018-04-05 | 9590-603-1105 | 16.0 ppb |
2018-04-05 | 9590-604-0831 | 2.70 ppb |
2018-04-05 | 9590-605-0911 | 11.0 ppb |
2018-04-05 | 9590-606-1043 | 23.0 ppb |
2018-04-05 | 9590-607-1011 | 13.0 ppb |
2018-04-05 | 9590-608-0949 | ND |
2018-06-20 | 9588-008-1044 | ND |
2018-06-20 | 9588-027-1105 | ND |
2018-06-20 | 9588-029-1228 | ND |
2018-06-20 | 9588-034-1200 | ND |
2018-06-20 | 9588-038-1138 | ND |
2018-06-21 | 9588-003-0848 | ND |
2018-06-21 | 9588-025-0832 | ND |
2018-06-21 | 9588-037-0914 | ND |
2018-06-21 | 9588-050-1244 | ND |
2018-06-21 | 9588-051-0815 | ND |
2018-06-25 | 9588-004-0941 | ND |
2018-06-25 | 9588-035-1127 | ND |
2018-06-26 | 9588-052-0925 | ND |
2018-06-26 | 9588-053-1000 | ND |
2018-06-26 | 9588-054-1035 | ND |
2018-06-27 | 9588-033-1020 | ND |
2018-06-27 | 9588-055-1140 | ND |
2018-07-03 | 9588-010-0917 | ND |
2018-07-09 | 9588-601-1245 | 13.0 ppb |
2018-07-09 | 9588-602-1107 | 11.0 ppb |
2018-07-09 | 9588-603-1140 | 14.0 ppb |
2018-07-09 | 9588-604-0945 | 18.0 ppb |
2018-07-09 | 9588-605-1006 | 17.0 ppb |
2018-07-09 | 9588-606-1120 | 17.0 ppb |
2018-07-09 | 9588-607-1050 | 12.0 ppb |
2018-07-09 | 9588-608-1030 | 2.30 ppb |
2018-07-11 | 9588-002-1000 | ND |
2018-07-11 | 9588-042-0950 | ND |
2018-07-12 | 9588-017-1214 | ND |
2018-07-18 | 9588-001-0950 | ND |
2018-07-18 | 9588-022-1010 | ND |
2018-07-26 | 9588-016-0846 | ND |
2018-07-26 | 9588-023-0912 | ND |
2018-07-26 | 9588-024-0904 | ND |
2018-10-09 | 9588-601-1414 | 16.0 ppb |
2018-10-09 | 9588-602-1112 | 11.0 ppb |
2018-10-09 | 9588-603-1349 | 17.0 ppb |
2018-10-09 | 9588-604-0718 | 17.0 ppb |
2018-10-09 | 9588-605-0756 | 16.0 ppb |
2018-10-09 | 9588-606-1246 | 19.0 ppb |
2018-10-09 | 9588-607-1057 | 14.0 ppb |
2018-10-09 | 9588-608-0952 | 15.0 ppb |
2019-01-09 | 9588-601-1147 | 23.0 ppb |
2019-01-09 | 9588-602-1055 | 25.0 ppb |
2019-01-09 | 9588-603-1131 | 40.0 ppb |
2019-01-09 | 9588-604-0800 | 35.0 ppb |
2019-01-09 | 9588-605-0911 | 31.0 ppb |
2019-01-09 | 9588-606-1110 | 27.0 ppb |
2019-01-09 | 9588-607-1005 | 24.0 ppb |
2019-01-09 | 9588-608-0937 | 26.0 ppb |
2019-04-04 | 9588-601-0920 | 2.70 ppb |
2019-04-04 | 9588-602-0820 | 5.90 ppb |
2019-04-04 | 9588-603-0900 | 5.00 ppb |
2019-04-04 | 9588-604-0700 | 5.40 ppb |
2019-04-04 | 9588-605-0720 | 6.30 ppb |
2019-04-04 | 9588-606-0840 | 8.10 ppb |
2019-04-04 | 9588-607-0800 | ND |
2019-04-04 | 9588-608-0740 | 5.50 ppb |
2019-07-01 | 9588-017-0945 | ND |
2019-07-08 | 9588-601-1210 | 3.50 ppb |
2019-07-08 | 9588-602-1055 | 1.90 ppb |
2019-07-08 | 9588-603-1145 | 7.00 ppb |
2019-07-08 | 9588-604-0930 | ND |
2019-07-08 | 9588-605-0950 | ND |
2019-07-08 | 9588-606-1120 | 14.0 ppb |
2019-07-08 | 9588-607-1035 | 14.0 ppb |
2019-07-08 | 9588-608-1015 | 5.10 ppb |
2019-07-24 | 9588-017-1115 | ND |
2019-10-07 | 9588-601-1210 | 2.30 ppb |
2019-10-07 | 9588-602-1055 | ND |
2019-10-07 | 9588-603-1145 | 5.00 ppb |
2019-10-07 | 9588-604-0915 | ND |
2019-10-07 | 9588-605-0940 | ND |
2019-10-07 | 9588-606-1120 | 5.60 ppb |
2019-10-07 | 9588-607-1035 | ND |
2019-10-07 | 9588-608-1015 | ND |