Bromoform
City of Escondido
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 | 3.89 ppb | 37 | 37 | 1.90 ppb - 8.50 ppb |
2015 | 4.57 ppb | 38 | 38 | 1.80 ppb - 8.70 ppb |
2016 | 3.40 ppb | 37 | 37 | 1.80 ppb - 5.10 ppb |
2017 | 3.42 ppb | 37 | 37 | 2.20 ppb - 6.40 ppb |
2018 | 3.77 ppb | 31 | 31 | 2.40 ppb - 4.90 ppb |
2019 | 2.93 ppb | 37 | 37 | 1.80 ppb - 4.90 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 |
---|---|---|
2014-02-10 | 2706-018-1028 | 1.90 ppb |
2014-02-10 | 2706-900-1124 | 2.40 ppb |
2014-02-10 | 2706-901-0915 | 2.30 ppb |
2014-02-10 | 2706-902-0820 | 2.00 ppb |
2014-02-10 | 2706-903-0955 | 1.90 ppb |
2014-02-10 | 2706-904-0845 | 2.30 ppb |
2014-02-10 | 2706-905-0738 | 2.50 ppb |
2014-02-10 | 2706-906-0800 | 2.40 ppb |
2014-02-10 | 2706-907-0938 | 2.30 ppb |
2014-05-12 | 2706-018-1022 | 2.60 ppb |
2014-05-12 | 2706-019-1001 | 2.20 ppb |
2014-05-12 | 2706-900-1126 | 2.60 ppb |
2014-05-12 | 2706-901-0907 | 2.60 ppb |
2014-05-12 | 2706-902-0825 | 2.60 ppb |
2014-05-12 | 2706-903-1059 | 2.60 ppb |
2014-05-12 | 2706-904-0842 | 2.40 ppb |
2014-05-12 | 2706-905-0740 | 2.30 ppb |
2014-05-12 | 2706-906-0805 | 2.60 ppb |
2014-05-12 | 2706-907-0935 | 2.40 ppb |
2014-08-18 | 2706-018-1148 | 7.50 ppb |
2014-08-18 | 2706-900-0808 | 8.00 ppb |
2014-08-18 | 2706-901-0949 | 8.30 ppb |
2014-08-18 | 2706-902-0858 | 7.90 ppb |
2014-08-18 | 2706-903-1030 | 7.80 ppb |
2014-08-18 | 2706-904-0915 | 8.50 ppb |
2014-08-18 | 2706-905-0757 | 7.80 ppb |
2014-08-18 | 2706-906-0832 | 8.20 ppb |
2014-08-18 | 2706-907-1010 | 8.00 ppb |
2014-11-17 | 2706-018-1110 | 2.80 ppb |
2014-11-17 | 2706-900-0818 | 3.00 ppb |
2014-11-17 | 2706-901-0942 | 3.10 ppb |
2014-11-17 | 2706-902-0902 | 2.90 ppb |
2014-11-17 | 2706-903-1014 | 3.00 ppb |
2014-11-17 | 2706-904-0922 | 3.00 ppb |
2014-11-17 | 2706-905-0808 | 3.10 ppb |
2014-11-17 | 2706-906-0836 | 3.20 ppb |
2014-11-17 | 2706-907-0959 | 3.10 ppb |
2015-02-09 | 2706-018-1120 | 6.00 ppb |
2015-02-09 | 2706-900-0829 | 8.30 ppb |
2015-02-09 | 2706-901-1219 | 7.90 ppb |
2015-02-09 | 2706-902-0900 | 8.60 ppb |
2015-02-09 | 2706-903-1147 | 7.30 ppb |
2015-02-09 | 2706-904-0917 | 8.30 ppb |
2015-02-09 | 2706-905-0848 | 8.10 ppb |
2015-02-09 | 2706-906-0844 | 8.70 ppb |
2015-02-09 | 2706-907-1202 | 8.30 ppb |
2015-05-18 | 2706-018-1110 | 3.90 ppb |
2015-05-18 | 2706-019-1010 | 5.10 ppb |
2015-05-18 | 2706-900-0759 | 4.30 ppb |
2015-05-18 | 2706-901-0916 | 4.30 ppb |
2015-05-18 | 2706-902-0834 | 4.00 ppb |
2015-05-18 | 2706-903-1140 | 3.90 ppb |
2015-05-18 | 2706-904-0855 | 4.50 ppb |
2015-05-18 | 2706-905-0747 | 4.10 ppb |
2015-05-18 | 2706-906-0818 | 4.10 ppb |
2015-05-18 | 2706-907-0934 | 4.40 ppb |
2015-08-17 | 2706-018-1120 | 3.50 ppb |
2015-08-17 | 2706-019-1029 | 2.60 ppb |
2015-08-17 | 2706-900-0806 | 4.20 ppb |
2015-08-17 | 2706-901-0913 | 4.20 ppb |
2015-08-17 | 2706-902-0838 | 4.90 ppb |
2015-08-17 | 2706-903-1205 | 3.60 ppb |
2015-08-17 | 2706-904-0855 | 5.20 ppb |
2015-08-17 | 2706-905-0757 | 4.80 ppb |
2015-08-17 | 2706-906-0822 | 3.50 ppb |
2015-08-17 | 2706-907-0928 | 4.70 ppb |
2015-11-16 | 2706-018-1104 | 1.80 ppb |
2015-11-16 | 2706-900-0839 | 2.00 ppb |
2015-11-16 | 2706-901-0957 | 2.10 ppb |
2015-11-16 | 2706-902-0916 | 1.90 ppb |
2015-11-16 | 2706-903-1130 | 1.90 ppb |
2015-11-16 | 2706-904-0936 | 2.10 ppb |
2015-11-16 | 2706-905-0828 | 2.30 ppb |
2015-11-16 | 2706-906-0857 | 2.20 ppb |
2015-11-16 | 2706-907-1010 | 2.20 ppb |
2016-02-23 | 2706-018-1020 | 2.50 ppb |
2016-02-23 | 2706-900-0738 | 2.50 ppb |
2016-02-23 | 2706-901-0759 | 2.60 ppb |
2016-02-23 | 2706-902-0845 | 2.60 ppb |
2016-02-23 | 2706-903-1048 | 2.60 ppb |
2016-02-23 | 2706-904-0906 | 2.90 ppb |
2016-02-23 | 2706-905-0728 | 2.90 ppb |
2016-02-23 | 2706-906-0818 | 2.40 ppb |
2016-02-23 | 2706-907-0926 | 2.90 ppb |
2016-05-16 | 2706-018-1010 | 2.30 ppb |
2016-05-16 | 2706-019-0919 | 1.80 ppb |
2016-05-16 | 2706-900-0807 | 3.30 ppb |
2016-05-16 | 2706-901-1056 | 3.10 ppb |
2016-05-16 | 2706-902-1140 | 2.90 ppb |
2016-05-16 | 2706-903-0853 | 2.80 ppb |
2016-05-16 | 2706-904-1115 | 3.10 ppb |
2016-05-16 | 2706-905-0758 | 3.20 ppb |
2016-05-16 | 2706-906-1204 | 3.10 ppb |
2016-05-16 | 2706-907-1036 | 3.10 ppb |
2016-08-15 | 2706-018-1013 | 4.60 ppb |
2016-08-15 | 2706-900-0801 | 5.10 ppb |
2016-08-15 | 2706-901-0835 | 4.90 ppb |
2016-08-15 | 2706-902-0852 | 4.80 ppb |
2016-08-15 | 2706-903-1047 | 4.80 ppb |
2016-08-15 | 2706-904-0910 | 4.90 ppb |
2016-08-15 | 2706-905-0752 | 5.00 ppb |
2016-08-15 | 2706-906-0820 | 5.00 ppb |
2016-08-15 | 2706-907-0932 | 4.80 ppb |
2016-11-14 | 2706-018-1028 | 3.10 ppb |
2016-11-14 | 2706-900-0802 | 3.30 ppb |
2016-11-14 | 2706-901-0915 | 3.40 ppb |
2016-11-14 | 2706-902-0837 | 2.90 ppb |
2016-11-14 | 2706-903-1100 | 3.10 ppb |
2016-11-14 | 2706-904-0855 | 3.40 ppb |
2016-11-14 | 2706-905-0742 | 3.60 ppb |
2016-11-14 | 2706-906-0821 | 3.30 ppb |
2016-11-14 | 2706-907-0930 | 3.30 ppb |
2017-02-13 | 2706-018-1144 | 4.40 ppb |
2017-02-13 | 2706-900-0837 | 4.60 ppb |
2017-02-13 | 2706-901-0951 | 5.70 ppb |
2017-02-13 | 2706-902-0912 | 5.90 ppb |
2017-02-13 | 2706-903-1209 | 4.70 ppb |
2017-02-13 | 2706-904-0941 | 6.00 ppb |
2017-02-13 | 2706-905-0825 | 6.40 ppb |
2017-02-13 | 2706-906-0856 | 4.90 ppb |
2017-02-13 | 2706-907-0959 | 5.10 ppb |
2017-05-09 | 2706-018-1055 | 2.50 ppb |
2017-05-09 | 2706-900-0745 | 2.40 ppb |
2017-05-09 | 2706-901-0914 | 2.60 ppb |
2017-05-09 | 2706-902-0836 | 2.70 ppb |
2017-05-09 | 2706-903-1142 | 2.50 ppb |
2017-05-09 | 2706-904-0857 | 2.70 ppb |
2017-05-09 | 2706-905-0725 | 2.90 ppb |
2017-05-09 | 2706-906-0816 | 2.80 ppb |
2017-05-09 | 2706-907-0935 | 2.50 ppb |
2017-06-08 | 2706-018-0846 | 2.80 ppb |
2017-08-14 | 2706-018-1135 | 2.40 ppb |
2017-08-14 | 2706-900-0802 | 2.40 ppb |
2017-08-14 | 2706-901-0936 | 2.50 ppb |
2017-08-14 | 2706-902-1431 | 2.20 ppb |
2017-08-14 | 2706-903-1212 | 2.30 ppb |
2017-08-14 | 2706-904-0913 | 2.80 ppb |
2017-08-14 | 2706-905-0752 | 2.70 ppb |
2017-08-14 | 2706-906-0824 | 2.30 ppb |
2017-08-14 | 2706-907-1000 | 2.50 ppb |
2017-11-13 | 2706-018-0753 | 2.90 ppb |
2017-11-13 | 2706-900-1135 | 3.40 ppb |
2017-11-13 | 2706-901-1027 | 3.40 ppb |
2017-11-13 | 2706-902-1006 | 2.60 ppb |
2017-11-13 | 2706-903-1045 | 3.40 ppb |
2017-11-13 | 2706-904-0940 | 3.60 ppb |
2017-11-13 | 2706-905-1147 | 3.90 ppb |
2017-11-13 | 2706-906-1112 | 3.60 ppb |
2017-11-13 | 2706-907-0912 | 3.50 ppb |
2018-02-12 | 2706-018-0742 | 4.00 ppb |
2018-02-12 | 2706-900-1046 | 4.50 ppb |
2018-02-12 | 2706-901-0933 | 4.50 ppb |
2018-02-12 | 2706-902-0911 | 4.40 ppb |
2018-02-12 | 2706-903-0955 | 4.50 ppb |
2018-02-12 | 2706-904-0843 | 4.90 ppb |
2018-02-12 | 2706-905-1103 | 4.80 ppb |
2018-02-12 | 2706-906-1024 | 4.60 ppb |
2018-02-12 | 2706-907-0814 | 4.80 ppb |
2018-05-14 | 2706-018-0734 | 3.60 ppb |
2018-05-14 | 2706-900-1102 | 3.20 ppb |
2018-05-14 | 2706-901-0945 | 3.60 ppb |
2018-05-14 | 2706-902-0916 | 3.60 ppb |
2018-05-14 | 2706-903-1007 | 3.90 ppb |
2018-05-14 | 2706-904-0846 | 3.70 ppb |
2018-05-14 | 2706-905-1119 | 3.50 ppb |
2018-05-14 | 2706-906-1036 | 4.00 ppb |
2018-05-14 | 2706-907-0811 | 3.60 ppb |
2018-05-15 | 2706-018-0838 | 3.30 ppb |
2018-05-15 | 2706-019-0916 | 2.40 ppb |
2018-08-13 | 2706-018-0655 | 3.40 ppb |
2018-08-13 | 2706-900-1021 | 3.30 ppb |
2018-08-13 | 2706-901-0843 | 3.50 ppb |
2018-08-13 | 2706-902-0823 | 3.10 ppb |
2018-08-13 | 2706-903-0904 | 3.20 ppb |
2018-08-13 | 2706-904-0758 | 3.50 ppb |
2018-08-13 | 2706-905-1038 | 3.80 ppb |
2018-08-13 | 2706-906-0935 | 3.40 ppb |
2018-08-13 | 2706-907-0729 | 3.60 ppb |
2018-08-14 | 2706-018-0900 | 3.60 ppb |
2018-08-14 | 2706-019-0935 | 3.20 ppb |
2019-02-11 | 2706-018-0826 | 2.00 ppb |
2019-02-11 | 2706-900-1130 | 2.40 ppb |
2019-02-11 | 2706-901-1050 | 2.60 ppb |
2019-02-11 | 2706-902-1030 | 2.30 ppb |
2019-02-11 | 2706-903-1106 | 2.40 ppb |
2019-02-11 | 2706-904-1004 | 2.50 ppb |
2019-02-11 | 2706-905-1158 | 2.70 ppb |
2019-02-11 | 2706-906-1118 | 2.40 ppb |
2019-02-11 | 2706-907-0940 | 2.40 ppb |
2019-05-13 | 2706-018-0830 | 1.90 ppb |
2019-05-13 | 2706-900-1046 | 2.10 ppb |
2019-05-13 | 2706-901-1013 | 1.80 ppb |
2019-05-13 | 2706-902-1000 | 1.90 ppb |
2019-05-13 | 2706-903-0920 | 2.00 ppb |
2019-05-13 | 2706-904-0942 | 2.10 ppb |
2019-05-13 | 2706-905-1054 | 2.10 ppb |
2019-05-13 | 2706-906-1025 | 2.00 ppb |
2019-05-13 | 2706-907-0902 | 2.10 ppb |
2019-08-12 | 2706-018-0845 | 2.90 ppb |
2019-08-12 | 2706-900-1043 | 2.70 ppb |
2019-08-12 | 2706-901-1018 | 2.80 ppb |
2019-08-12 | 2706-902-1003 | 2.30 ppb |
2019-08-12 | 2706-903-0925 | 2.60 ppb |
2019-08-12 | 2706-904-0944 | 2.90 ppb |
2019-08-12 | 2706-905-1051 | 3.00 ppb |
2019-08-12 | 2706-906-1030 | 2.60 ppb |
2019-08-12 | 2706-907-0912 | 2.80 ppb |
2019-11-12 | 2706-018-0845 | 4.00 ppb |
2019-11-12 | 2706-019-0800 | 3.40 ppb |
2019-11-12 | 2706-900-1137 | 4.70 ppb |
2019-11-12 | 2706-901-1105 | 4.90 ppb |
2019-11-12 | 2706-902-1031 | 4.40 ppb |
2019-11-12 | 2706-903-0929 | 4.20 ppb |
2019-11-12 | 2706-904-1009 | 4.80 ppb |
2019-11-12 | 2706-905-1147 | 4.50 ppb |
2019-11-12 | 2706-906-1050 | 4.60 ppb |
2019-11-12 | 2706-907-0945 | 4.50 ppb |