Bromoform
Golden State Water Company (GSWC) - South Arcadia
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 | 0.191 ppb | 58 | 6 | ND - 3.30 ppb |
2015 | 0.121 ppb | 58 | 3 | ND - 2.80 ppb |
2016 | 0.226 ppb | 42 | 5 | ND - 2.80 ppb |
2017 | 0.0522 ppb | 23 | 1 | ND - 1.20 ppb |
2018 | 0.0696 ppb | 23 | 1 | ND - 1.60 ppb |
2019 | 0.189 ppb | 28 | 3 | ND - 2.10 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 |
---|---|---|
2014-01-13 | 2706-002-1204 | ND |
2014-01-13 | 2706-003-1044 | ND |
2014-01-23 | 9588-800-0835 | ND |
2014-01-23 | 9588-801-0810 | ND |
2014-01-23 | 9588-802-0800 | 1.10 ppb |
2014-01-23 | 9588-803-0820 | 1.40 ppb |
2014-02-10 | 2706-002-1115 | ND |
2014-02-10 | 2706-003-1024 | ND |
2014-02-10 | 2706-004-1436 | ND |
2014-02-26 | 9588-005-1110 | ND |
2014-03-10 | 2706-002-1109 | ND |
2014-03-13 | 2706-003-1100 | ND |
2014-03-13 | 2706-004-1120 | ND |
2014-04-07 | 2706-002-1230 | ND |
2014-04-07 | 2706-003-1243 | ND |
2014-04-07 | 2706-004-1322 | ND |
2014-04-22 | 9588-800-0815 | ND |
2014-04-22 | 9588-801-0750 | 1.60 ppb |
2014-04-22 | 9588-802-0740 | 1.70 ppb |
2014-04-22 | 9588-803-0800 | 3.30 ppb |
2014-05-12 | 2706-002-1225 | ND |
2014-05-12 | 2706-003-1325 | ND |
2014-05-12 | 2706-004-1301 | ND |
2014-05-15 | 9588-004-1125 | ND |
2014-05-15 | 9588-006-1015 | ND |
2014-06-09 | 2706-002-1127 | ND |
2014-06-09 | 2706-003-1403 | ND |
2014-06-09 | 2706-004-1100 | ND |
2014-07-07 | 2706-002-1144 | ND |
2014-07-07 | 2706-003-1152 | ND |
2014-07-07 | 2706-004-1200 | ND |
2014-07-23 | 9588-800-0750 | ND |
2014-07-23 | 9588-801-0720 | ND |
2014-07-23 | 9588-802-0705 | ND |
2014-07-23 | 9588-803-0735 | ND |
2014-08-11 | 2706-002-1101 | ND |
2014-08-11 | 2706-003-1035 | ND |
2014-08-11 | 2706-004-1208 | ND |
2014-08-28 | 9588-003-1020 | ND |
2014-08-28 | 9588-006-1100 | ND |
2014-08-28 | 9588-014-1025 | ND |
2014-09-08 | 2706-002-1024 | ND |
2014-09-08 | 2706-003-1105 | ND |
2014-09-08 | 2706-004-1005 | ND |
2014-10-13 | 2706-002-1030 | ND |
2014-10-13 | 2706-003-1004 | ND |
2014-10-13 | 2706-004-1215 | ND |
2014-10-23 | 9588-800-0835 | ND |
2014-10-23 | 9588-801-0810 | ND |
2014-10-23 | 9588-802-0800 | ND |
2014-10-23 | 9588-803-0820 | 2.00 ppb |
2014-11-05 | 9588-002-1035 | ND |
2014-11-05 | 9588-015-0955 | ND |
2014-11-10 | 2706-002-1111 | ND |
2014-11-10 | 2706-004-1058 | ND |
2014-12-08 | 2706-002-0955 | ND |
2014-12-08 | 2706-003-0940 | ND |
2014-12-08 | 2706-004-1109 | ND |
2015-01-12 | 2706-002-1006 | ND |
2015-01-12 | 2706-003-1104 | ND |
2015-01-12 | 2706-004-1011 | ND |
2015-01-23 | 9588-800-0805 | ND |
2015-01-23 | 9588-801-0740 | ND |
2015-01-23 | 9588-802-0730 | ND |
2015-01-23 | 9588-803-0750 | ND |
2015-02-09 | 2706-002-1040 | ND |
2015-02-09 | 2706-003-1007 | ND |
2015-02-09 | 2706-004-1138 | ND |
2015-02-19 | 9588-005-1005 | ND |
2015-03-09 | 2706-002-1113 | ND |
2015-03-09 | 2706-003-1016 | ND |
2015-03-09 | 2706-004-1118 | ND |
2015-04-13 | 2706-002-1018 | ND |
2015-04-13 | 2706-003-1121 | ND |
2015-04-13 | 2706-004-1009 | ND |
2015-04-22 | 9588-800-0800 | ND |
2015-04-22 | 9588-801-0740 | ND |
2015-04-22 | 9588-802-0730 | ND |
2015-04-22 | 9588-803-0750 | 1.80 ppb |
2015-05-11 | 2706-002-1115 | ND |
2015-05-11 | 2706-003-1034 | ND |
2015-05-11 | 2706-004-1130 | ND |
2015-05-19 | 9588-004-0935 | ND |
2015-06-08 | 2706-002-1052 | ND |
2015-06-08 | 2706-003-1103 | ND |
2015-06-08 | 2706-004-1011 | ND |
2015-07-14 | 2706-002-0937 | ND |
2015-07-14 | 2706-003-1010 | ND |
2015-07-14 | 2706-004-0943 | ND |
2015-07-23 | 9588-800-0805 | ND |
2015-07-23 | 9588-801-0745 | ND |
2015-07-23 | 9588-802-0735 | ND |
2015-07-23 | 9588-803-0755 | 2.80 ppb |
2015-08-10 | 2706-002-1000 | ND |
2015-08-10 | 2706-003-0946 | ND |
2015-08-10 | 2706-004-1016 | ND |
2015-08-14 | 9588-003-1005 | ND |
2015-08-14 | 9588-006-1045 | ND |
2015-08-14 | 9588-014-1115 | ND |
2015-09-08 | 2706-002-1100 | ND |
2015-09-08 | 2706-003-1055 | ND |
2015-09-08 | 2706-004-1010 | ND |
2015-10-12 | 2706-002-1000 | ND |
2015-10-12 | 2706-004-0940 | ND |
2015-10-26 | 9588-800-0805 | ND |
2015-10-26 | 9588-801-0740 | ND |
2015-10-26 | 9588-802-0730 | ND |
2015-10-26 | 9588-803-0750 | 2.40 ppb |
2015-11-09 | 2706-002-0923 | ND |
2015-11-09 | 2706-003-0917 | ND |
2015-11-09 | 2706-004-1019 | ND |
2015-11-17 | 9588-002-0950 | ND |
2015-11-17 | 9588-015-1015 | ND |
2015-12-07 | 2706-002-1055 | ND |
2015-12-07 | 2706-003-1105 | ND |
2015-12-07 | 2706-004-1011 | ND |
2016-01-11 | 2706-002-1158 | ND |
2016-01-11 | 2706-003-1201 | ND |
2016-01-26 | 9588-800-0825 | ND |
2016-01-26 | 9588-801-0800 | ND |
2016-01-26 | 9588-802-0750 | 1.40 ppb |
2016-01-26 | 9588-803-0810 | 1.30 ppb |
2016-02-08 | 2706-003-1120 | ND |
2016-03-08 | 2706-003-0920 | ND |
2016-03-08 | 2706-004-0930 | ND |
2016-03-22 | 9588-005-1110 | ND |
2016-04-11 | 2706-003-1034 | ND |
2016-04-11 | 2706-004-1442 | ND |
2016-04-22 | 9588-800-0805 | ND |
2016-04-22 | 9588-801-0740 | ND |
2016-04-22 | 9588-802-0730 | ND |
2016-04-22 | 9588-803-0750 | 2.80 ppb |
2016-04-25 | 2706-005-0923 | ND |
2016-05-10 | 2706-003-0935 | ND |
2016-05-10 | 2706-004-0943 | ND |
2016-05-11 | 9588-004-1030 | ND |
2016-06-14 | 2706-003-1012 | ND |
2016-06-20 | 2706-002-1046 | ND |
2016-06-20 | 2706-004-1035 | ND |
2016-07-11 | 2706-002-1355 | ND |
2016-07-11 | 2706-003-1345 | ND |
2016-07-11 | 2706-004-1425 | ND |
2016-07-26 | 9588-800-0810 | ND |
2016-07-26 | 9588-801-0740 | ND |
2016-07-26 | 9588-802-0730 | ND |
2016-07-26 | 9588-803-0755 | 2.60 ppb |
2016-08-08 | 0007-002-1115 | ND |
2016-08-08 | 0007-003-1051 | ND |
2016-08-08 | 0007-004-1107 | ND |
2016-08-19 | 9588-003-1055 | ND |
2016-08-19 | 9588-006-0920 | ND |
2016-08-19 | 9588-014-0850 | ND |
2016-10-26 | 9588-800-0830 | ND |
2016-10-26 | 9588-801-0810 | ND |
2016-10-26 | 9588-802-0800 | ND |
2016-10-26 | 9588-803-0820 | 1.40 ppb |
2016-11-17 | 9588-002-1005 | ND |
2016-11-17 | 9588-015-1100 | ND |
2017-01-24 | 9588-800-0815 | ND |
2017-01-24 | 9588-801-0750 | ND |
2017-01-24 | 9588-802-0740 | 1.20 ppb |
2017-01-24 | 9588-803-0800 | ND |
2017-02-16 | 9588-005-1120 | ND |
2017-04-24 | 9588-800-0940 | ND |
2017-04-24 | 9588-801-0905 | ND |
2017-04-24 | 9588-802-0855 | ND |
2017-04-24 | 9588-803-0925 | ND |
2017-05-16 | 9588-004-1020 | ND |
2017-07-27 | 9588-800-1435 | ND |
2017-07-27 | 9588-801-1515 | ND |
2017-07-27 | 9588-802-1530 | ND |
2017-07-27 | 9588-803-1450 | ND |
2017-08-10 | 9588-003-1000 | ND |
2017-08-10 | 9588-006-1035 | ND |
2017-08-10 | 9588-014-1055 | ND |
2017-10-24 | 9588-800-0810 | ND |
2017-10-24 | 9588-801-0740 | ND |
2017-10-24 | 9588-802-0730 | ND |
2017-10-24 | 9588-803-0755 | ND |
2017-11-29 | 9588-002-0945 | ND |
2017-11-29 | 9588-015-1015 | ND |
2018-01-24 | 9588-800-0830 | ND |
2018-01-24 | 9588-801-0805 | ND |
2018-01-24 | 9588-802-0755 | ND |
2018-01-24 | 9588-803-0815 | ND |
2018-02-14 | 9588-005-1010 | ND |
2018-04-24 | 9588-800-0810 | ND |
2018-04-24 | 9588-801-0740 | ND |
2018-04-24 | 9588-802-0730 | ND |
2018-04-24 | 9588-803-0750 | ND |
2018-05-17 | 9588-004-1005 | ND |
2018-07-24 | 9588-800-0750 | ND |
2018-07-24 | 9588-801-0725 | ND |
2018-07-24 | 9588-802-0715 | ND |
2018-07-24 | 9588-803-0735 | ND |
2018-08-16 | 9588-003-1015 | ND |
2018-08-16 | 9588-006-1115 | ND |
2018-08-16 | 9588-014-1100 | ND |
2018-10-23 | 9588-800-0805 | ND |
2018-10-23 | 9588-801-0740 | ND |
2018-10-23 | 9588-802-0730 | ND |
2018-10-23 | 9588-803-0750 | 1.60 ppb |
2018-11-29 | 9588-002-1050 | ND |
2018-11-29 | 9588-015-1220 | ND |
2019-01-24 | 9588-800-0850 | ND |
2019-01-24 | 9588-801-0820 | ND |
2019-01-24 | 9588-802-0810 | ND |
2019-01-24 | 9588-803-0830 | ND |
2019-02-22 | 9588-005-0910 | ND |
2019-04-22 | 9590-015-1106 | ND |
2019-04-22 | 9590-015-1111 | ND |
2019-04-22 | 9590-015-1116 | ND |
2019-04-22 | 9590-015-1121 | ND |
2019-04-22 | 9590-015-1126 | ND |
2019-04-23 | 9588-800-0800 | ND |
2019-04-23 | 9588-801-0735 | ND |
2019-04-23 | 9588-802-0725 | ND |
2019-04-23 | 9588-803-0745 | 2.00 ppb |
2019-05-22 | 9588-004-1130 | ND |
2019-07-23 | 9588-800-0740 | ND |
2019-07-23 | 9588-801-0715 | ND |
2019-07-23 | 9588-802-0705 | ND |
2019-07-23 | 9588-803-0725 | 2.10 ppb |
2019-08-14 | 9588-003-1030 | ND |
2019-08-14 | 9588-006-1135 | ND |
2019-08-14 | 9588-014-1150 | ND |
2019-10-23 | 9588-800-0755 | ND |
2019-10-23 | 9588-801-0730 | ND |
2019-10-23 | 9588-802-0720 | ND |
2019-10-23 | 9588-803-0740 | 1.20 ppb |
2019-11-12 | 9588-002-1115 | ND |
2019-11-12 | 9588-015-1240 | ND |