Bromoform
Glendora Water Department
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 |
---|---|---|---|---|
2014 | 5.29 ppb | 39 | 31 | ND - 24.0 ppb |
2015 | 11.1 ppb | 40 | 32 | ND - 34.0 ppb |
2016 | 8.84 ppb | 40 | 32 | ND - 28.0 ppb |
2017 | 8.78 ppb | 40 | 32 | ND - 31.0 ppb |
2018 | 7.05 ppb | 40 | 31 | ND - 28.0 ppb |
2019 | 11.4 ppb | 40 | 30 | ND - 66.0 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 |
---|---|---|
2014-01-24 | 9588-800-0835 | 18.0 ppb |
2014-01-24 | 9588-801-1015 | 3.50 ppb |
2014-01-24 | 9588-802-1000 | 5.90 ppb |
2014-01-24 | 9588-803-0915 | 10.00 ppb |
2014-01-24 | 9588-804-0905 | 6.20 ppb |
2014-01-24 | 9588-805-0935 | 14.0 ppb |
2014-01-24 | 9588-806-0925 | 24.0 ppb |
2014-01-24 | 9588-807-0945 | 12.0 ppb |
2014-03-04 | 9588-006-0915 | ND |
2014-03-04 | 9588-008-1020 | ND |
2014-03-04 | 9588-020-1005 | ND |
2014-04-23 | 9588-800-0815 | 4.70 ppb |
2014-04-23 | 9588-801-0935 | 6.80 ppb |
2014-04-23 | 9588-802-0930 | 7.60 ppb |
2014-04-23 | 9588-803-0850 | 5.40 ppb |
2014-04-23 | 9588-804-0840 | 4.20 ppb |
2014-04-23 | 9588-805-0910 | 2.60 ppb |
2014-04-23 | 9588-806-0900 | 4.20 ppb |
2014-04-23 | 9588-807-0920 | 3.90 ppb |
2014-07-24 | 9588-800-1040 | ND |
2014-07-24 | 9588-801-0915 | 2.10 ppb |
2014-07-24 | 9588-802-0900 | 2.50 ppb |
2014-07-24 | 9588-803-1025 | 3.70 ppb |
2014-07-24 | 9588-804-1015 | 1.40 ppb |
2014-07-24 | 9588-805-0950 | 2.40 ppb |
2014-07-24 | 9588-806-1000 | 4.70 ppb |
2014-07-24 | 9588-807-0935 | 5.10 ppb |
2014-09-09 | 9588-007-1030 | ND |
2014-09-09 | 9588-009-0925 | ND |
2014-09-09 | 9588-015-1010 | ND |
2014-09-17 | 9588-010-0950 | ND |
2014-10-27 | 9588-800-0835 | 3.40 ppb |
2014-10-27 | 9588-801-1010 | 2.00 ppb |
2014-10-27 | 9588-802-0955 | 16.0 ppb |
2014-10-27 | 9588-803-0905 | 3.80 ppb |
2014-10-27 | 9588-804-0855 | 9.30 ppb |
2014-10-27 | 9588-805-0925 | 3.10 ppb |
2014-10-27 | 9588-806-0915 | 9.60 ppb |
2014-10-27 | 9588-807-0940 | 4.20 ppb |
2015-01-28 | 9588-800-0820 | 23.0 ppb |
2015-01-28 | 9588-801-0930 | 19.0 ppb |
2015-01-28 | 9588-802-0940 | 20.0 ppb |
2015-01-28 | 9588-803-0850 | 31.0 ppb |
2015-01-28 | 9588-804-0840 | 10.00 ppb |
2015-01-28 | 9588-805-0910 | 8.40 ppb |
2015-01-28 | 9588-806-0900 | 9.10 ppb |
2015-01-28 | 9588-807-0920 | 5.50 ppb |
2015-03-25 | 9588-002-0910 | ND |
2015-03-25 | 9588-006-0955 | ND |
2015-03-25 | 9588-008-0930 | ND |
2015-03-25 | 9588-020-0900 | ND |
2015-04-23 | 9588-800-0800 | 10.00 ppb |
2015-04-23 | 9588-801-0925 | 8.70 ppb |
2015-04-23 | 9588-802-0915 | 8.70 ppb |
2015-04-23 | 9588-803-0830 | 13.0 ppb |
2015-04-23 | 9588-804-0820 | 9.20 ppb |
2015-04-23 | 9588-805-0850 | 4.90 ppb |
2015-04-23 | 9588-806-0840 | 6.40 ppb |
2015-04-23 | 9588-807-0900 | 2.50 ppb |
2015-07-27 | 9588-800-1010 | 14.0 ppb |
2015-07-27 | 9588-801-1135 | 14.0 ppb |
2015-07-27 | 9588-802-1130 | 30.0 ppb |
2015-07-27 | 9588-803-1045 | 17.0 ppb |
2015-07-27 | 9588-804-1035 | 11.0 ppb |
2015-07-27 | 9588-805-1105 | 5.70 ppb |
2015-07-27 | 9588-806-1055 | 9.20 ppb |
2015-07-27 | 9588-807-1115 | 3.60 ppb |
2015-09-09 | 9588-007-0940 | ND |
2015-09-09 | 9588-009-0925 | ND |
2015-09-09 | 9588-010-1010 | ND |
2015-09-09 | 9588-015-1025 | ND |
2015-10-28 | 9588-800-0920 | 13.0 ppb |
2015-10-28 | 9588-801-1040 | 14.0 ppb |
2015-10-28 | 9588-802-1030 | 34.0 ppb |
2015-10-28 | 9588-803-0940 | 25.0 ppb |
2015-10-28 | 9588-804-0930 | 13.0 ppb |
2015-10-28 | 9588-805-1005 | 27.0 ppb |
2015-10-28 | 9588-806-0955 | 14.0 ppb |
2015-10-28 | 9588-807-1015 | 12.0 ppb |
2016-01-25 | 9588-800-0830 | 5.10 ppb |
2016-01-25 | 9588-801-1155 | 2.80 ppb |
2016-01-25 | 9588-802-1140 | 24.0 ppb |
2016-01-25 | 9588-803-1055 | 4.40 ppb |
2016-01-25 | 9588-804-1045 | 4.30 ppb |
2016-01-25 | 9588-805-1115 | 2.70 ppb |
2016-01-25 | 9588-806-1105 | 3.40 ppb |
2016-01-25 | 9588-807-1125 | 1.10 ppb |
2016-03-03 | 9588-002-0930 | ND |
2016-03-03 | 9588-006-1000 | ND |
2016-03-03 | 9588-008-0940 | ND |
2016-03-03 | 9588-020-0920 | ND |
2016-04-27 | 9588-800-0825 | 8.30 ppb |
2016-04-27 | 9588-801-0955 | 11.0 ppb |
2016-04-27 | 9588-802-0940 | 15.0 ppb |
2016-04-27 | 9588-803-0855 | 11.0 ppb |
2016-04-27 | 9588-804-0845 | 8.80 ppb |
2016-04-27 | 9588-805-0910 | 23.0 ppb |
2016-04-27 | 9588-806-0905 | 9.30 ppb |
2016-04-27 | 9588-807-0925 | 4.80 ppb |
2016-07-25 | 9588-800-0810 | 13.0 ppb |
2016-07-25 | 9588-801-1105 | 28.0 ppb |
2016-07-25 | 9588-802-1115 | 16.0 ppb |
2016-07-25 | 9588-803-0840 | 18.0 ppb |
2016-07-25 | 9588-804-0835 | 9.70 ppb |
2016-07-25 | 9588-805-0850 | 6.10 ppb |
2016-07-25 | 9588-806-0845 | 10.00 ppb |
2016-07-25 | 9588-807-0900 | 4.20 ppb |
2016-09-08 | 9588-007-0930 | ND |
2016-09-08 | 9588-009-1015 | ND |
2016-09-08 | 9588-010-0940 | ND |
2016-09-08 | 9588-015-0955 | ND |
2016-10-25 | 9588-800-0820 | 13.0 ppb |
2016-10-25 | 9588-801-1145 | 15.0 ppb |
2016-10-25 | 9588-802-1130 | 22.0 ppb |
2016-10-25 | 9588-803-0850 | 11.0 ppb |
2016-10-25 | 9588-804-0840 | 9.30 ppb |
2016-10-25 | 9588-805-1100 | 22.0 ppb |
2016-10-25 | 9588-806-0900 | 10.00 ppb |
2016-10-25 | 9588-807-1115 | 7.30 ppb |
2017-01-27 | 9588-800-0805 | 13.0 ppb |
2017-01-27 | 9588-801-0930 | 11.0 ppb |
2017-01-27 | 9588-802-0915 | 27.0 ppb |
2017-01-27 | 9588-803-0830 | 9.90 ppb |
2017-01-27 | 9588-804-0820 | 16.0 ppb |
2017-01-27 | 9588-805-0850 | 21.0 ppb |
2017-01-27 | 9588-806-0840 | 11.0 ppb |
2017-01-27 | 9588-807-0900 | 5.90 ppb |
2017-03-02 | 9588-002-0800 | ND |
2017-03-02 | 9588-006-0835 | ND |
2017-03-02 | 9588-008-0810 | ND |
2017-03-02 | 9588-020-0755 | ND |
2017-04-25 | 9588-800-0820 | 6.30 ppb |
2017-04-25 | 9588-801-1115 | 10.00 ppb |
2017-04-25 | 9588-802-1130 | 23.0 ppb |
2017-04-25 | 9588-803-0900 | 7.10 ppb |
2017-04-25 | 9588-804-0850 | 13.0 ppb |
2017-04-25 | 9588-805-0920 | 31.0 ppb |
2017-04-25 | 9588-806-0910 | 7.50 ppb |
2017-04-25 | 9588-807-0930 | 4.50 ppb |
2017-07-25 | 9588-800-1220 | 9.10 ppb |
2017-07-25 | 9588-801-1330 | 11.0 ppb |
2017-07-25 | 9588-802-1320 | 11.0 ppb |
2017-07-25 | 9588-803-1205 | 7.10 ppb |
2017-07-25 | 9588-804-1155 | 16.0 ppb |
2017-07-25 | 9588-805-1240 | 4.90 ppb |
2017-07-25 | 9588-806-1140 | 6.40 ppb |
2017-07-25 | 9588-807-1300 | 2.80 ppb |
2017-09-07 | 9588-007-0920 | ND |
2017-09-07 | 9588-009-0850 | ND |
2017-09-07 | 9588-010-0930 | ND |
2017-09-07 | 9588-015-0940 | ND |
2017-10-27 | 9588-800-0820 | 7.10 ppb |
2017-10-27 | 9588-801-0955 | 11.0 ppb |
2017-10-27 | 9588-802-0940 | 4.30 ppb |
2017-10-27 | 9588-803-0850 | 13.0 ppb |
2017-10-27 | 9588-804-0840 | 7.20 ppb |
2017-10-27 | 9588-805-0910 | 15.0 ppb |
2017-10-27 | 9588-806-0900 | 5.60 ppb |
2017-10-27 | 9588-807-0925 | 2.40 ppb |
2018-01-26 | 9588-800-0830 | 8.80 ppb |
2018-01-26 | 9588-801-1005 | 9.70 ppb |
2018-01-26 | 9588-802-0950 | 12.0 ppb |
2018-01-26 | 9588-803-0900 | 6.60 ppb |
2018-01-26 | 9588-804-0850 | 11.0 ppb |
2018-01-26 | 9588-805-0000 | 3.90 ppb |
2018-01-26 | 9588-806-0910 | 5.20 ppb |
2018-01-26 | 9588-807-0935 | 2.70 ppb |
2018-03-07 | 9588-002-0840 | ND |
2018-03-07 | 9588-006-0910 | ND |
2018-03-07 | 9588-008-0850 | ND |
2018-03-07 | 9588-020-0835 | ND |
2018-04-25 | 9588-800-0820 | ND |
2018-04-25 | 9588-801-1125 | 10.00 ppb |
2018-04-25 | 9588-802-1115 | 20.0 ppb |
2018-04-25 | 9588-803-0900 | 7.50 ppb |
2018-04-25 | 9588-804-0850 | 14.0 ppb |
2018-04-25 | 9588-805-0920 | 28.0 ppb |
2018-04-25 | 9588-806-0910 | 6.50 ppb |
2018-04-25 | 9588-807-1055 | 3.60 ppb |
2018-07-27 | 9588-800-0725 | 5.50 ppb |
2018-07-27 | 9588-801-0835 | 4.20 ppb |
2018-07-27 | 9588-802-0825 | 9.20 ppb |
2018-07-27 | 9588-803-0750 | 5.80 ppb |
2018-07-27 | 9588-804-0745 | 14.0 ppb |
2018-07-27 | 9588-805-0810 | 4.50 ppb |
2018-07-27 | 9588-806-0800 | 9.70 ppb |
2018-07-27 | 9588-807-0810 | 7.50 ppb |
2018-09-14 | 9588-007-1005 | ND |
2018-09-14 | 9588-009-0925 | ND |
2018-09-14 | 9588-010-1025 | ND |
2018-09-14 | 9588-015-1050 | ND |
2018-10-26 | 9588-800-0840 | 20.0 ppb |
2018-10-26 | 9588-801-1030 | 5.40 ppb |
2018-10-26 | 9588-802-1015 | 10.00 ppb |
2018-10-26 | 9588-803-0930 | 9.90 ppb |
2018-10-26 | 9588-804-0920 | 15.0 ppb |
2018-10-26 | 9588-805-0950 | 3.80 ppb |
2018-10-26 | 9588-806-0940 | 5.30 ppb |
2018-10-26 | 9588-807-1005 | 2.50 ppb |
2019-01-25 | 9588-800-0915 | 25.0 ppb |
2019-01-25 | 9588-801-1115 | 14.0 ppb |
2019-01-25 | 9588-802-1100 | 46.0 ppb |
2019-01-25 | 9588-803-1015 | 15.0 ppb |
2019-01-25 | 9588-804-1005 | 66.0 ppb |
2019-01-25 | 9588-805-1035 | 9.90 ppb |
2019-01-25 | 9588-806-1025 | 17.0 ppb |
2019-01-25 | 9588-807-1045 | 6.50 ppb |
2019-03-13 | 9588-002-0815 | 7.40 ppb |
2019-03-13 | 9588-006-0845 | ND |
2019-03-13 | 9588-008-0825 | ND |
2019-03-13 | 9588-020-0810 | ND |
2019-04-24 | 9588-800-0805 | 9.00 ppb |
2019-04-24 | 9588-801-0930 | ND |
2019-04-24 | 9588-802-0920 | 11.0 ppb |
2019-04-24 | 9588-803-0835 | 12.0 ppb |
2019-04-24 | 9588-804-0825 | 16.0 ppb |
2019-04-24 | 9588-805-0855 | 6.00 ppb |
2019-04-24 | 9588-806-0845 | 9.20 ppb |
2019-04-24 | 9588-807-0910 | 4.10 ppb |
2019-07-24 | 9588-800-0810 | 14.0 ppb |
2019-07-24 | 9588-801-0945 | ND |
2019-07-24 | 9588-802-0935 | 20.0 ppb |
2019-07-24 | 9588-803-0845 | 11.0 ppb |
2019-07-24 | 9588-804-0835 | 9.00 ppb |
2019-07-24 | 9588-805-0905 | 28.0 ppb |
2019-07-24 | 9588-806-0855 | 12.0 ppb |
2019-07-24 | 9588-807-0920 | 24.0 ppb |
2019-09-19 | 9588-007-0820 | ND |
2019-09-19 | 9588-009-0910 | ND |
2019-09-24 | 9588-010-1350 | ND |
2019-09-24 | 9588-015-1335 | ND |
2019-10-25 | 9588-800-0805 | 11.0 ppb |
2019-10-25 | 9588-801-1025 | ND |
2019-10-25 | 9588-802-1005 | 16.0 ppb |
2019-10-25 | 9588-803-0915 | 7.80 ppb |
2019-10-25 | 9588-804-0905 | 7.70 ppb |
2019-10-25 | 9588-805-0935 | 5.80 ppb |
2019-10-25 | 9588-806-0925 | 9.50 ppb |
2019-10-25 | 9588-807-0945 | 4.30 ppb |