Bromodichloromethane
City of Manteca
Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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 | 1.66 ppb | 38 | 30 | ND - 5.20 ppb |
2015 | 2.39 ppb | 37 | 31 | ND - 7.30 ppb |
2016 | 2.73 ppb | 36 | 32 | ND - 7.80 ppb |
2017 | 2.79 ppb | 36 | 32 | ND - 5.80 ppb |
2018 | 2.12 ppb | 35 | 31 | ND - 4.90 ppb |
2019 | 2.05 ppb | 37 | 35 | ND - 4.20 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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 | 5810-900-1010 | 1.50 ppb |
2014-01-06 | 5810-901-1020 | 1.90 ppb |
2014-01-06 | 5810-902-0950 | ND |
2014-01-06 | 5810-903-0920 | 2.90 ppb |
2014-01-06 | 5810-904-1045 | 1.30 ppb |
2014-01-06 | 5810-905-1000 | ND |
2014-01-07 | 5810-906-0935 | 1.30 ppb |
2014-01-07 | 5810-907-1035 | 1.40 ppb |
2014-01-14 | 5810-036-0906 | ND |
2014-01-14 | 5810-042-1055 | ND |
2014-02-11 | 5810-030-0835 | ND |
2014-04-01 | 5810-900-0910 | 2.40 ppb |
2014-04-01 | 5810-901-0851 | 2.20 ppb |
2014-04-01 | 5810-902-0935 | 2.60 ppb |
2014-04-01 | 5810-903-0949 | 3.40 ppb |
2014-04-01 | 5810-904-1036 | 2.20 ppb |
2014-04-01 | 5810-905-1022 | 5.20 ppb |
2014-04-01 | 5810-906-1005 | 2.00 ppb |
2014-04-01 | 5810-907-1057 | 2.00 ppb |
2014-06-10 | 5810-015-0720 | ND |
2014-07-01 | 5810-900-0946 | 1.40 ppb |
2014-07-01 | 5810-901-1003 | 1.70 ppb |
2014-07-01 | 5810-902-1030 | 1.20 ppb |
2014-07-01 | 5810-903-1111 | 3.30 ppb |
2014-07-01 | 5810-904-0759 | 1.20 ppb |
2014-07-01 | 5810-905-1045 | 2.30 ppb |
2014-07-01 | 5810-906-0846 | 1.40 ppb |
2014-07-01 | 5810-907-0905 | 1.40 ppb |
2014-07-08 | 5810-016-0715 | ND |
2014-07-08 | 5810-028-0803 | ND |
2014-10-07 | 5810-900-0950 | 1.40 ppb |
2014-10-07 | 5810-901-0935 | 2.60 ppb |
2014-10-07 | 5810-902-1016 | 2.20 ppb |
2014-10-07 | 5810-903-1045 | 1.70 ppb |
2014-10-07 | 5810-904-1101 | 2.40 ppb |
2014-10-07 | 5810-905-1004 | 2.50 ppb |
2014-10-07 | 5810-906-1026 | 2.10 ppb |
2014-10-07 | 5810-907-0919 | 2.00 ppb |
2015-01-06 | 5810-900-1033 | 1.90 ppb |
2015-01-06 | 5810-901-1045 | 2.20 ppb |
2015-01-06 | 5810-902-1010 | 1.20 ppb |
2015-01-06 | 5810-903-0958 | ND |
2015-01-06 | 5810-904-1104 | 1.30 ppb |
2015-01-06 | 5810-905-1020 | 1.80 ppb |
2015-01-06 | 5810-906-0945 | 1.50 ppb |
2015-01-06 | 5810-907-1053 | 1.40 ppb |
2015-02-10 | 5810-040-0820 | ND |
2015-04-07 | 5810-900-1150 | 2.70 ppb |
2015-04-07 | 5810-901-1200 | 2.80 ppb |
2015-04-07 | 5810-902-1127 | 2.40 ppb |
2015-04-07 | 5810-903-1102 | 1.40 ppb |
2015-04-07 | 5810-904-1223 | 2.20 ppb |
2015-04-07 | 5810-905-1138 | 1.40 ppb |
2015-04-07 | 5810-906-1114 | 2.10 ppb |
2015-04-07 | 5810-907-1215 | 2.00 ppb |
2015-06-09 | 5810-049-0650 | ND |
2015-07-07 | 5810-900-0840 | 2.80 ppb |
2015-07-07 | 5810-901-0907 | 6.00 ppb |
2015-07-07 | 5810-902-0933 | 2.20 ppb |
2015-07-07 | 5810-903-0957 | 1.90 ppb |
2015-07-07 | 5810-904-1014 | 5.00 ppb |
2015-07-07 | 5810-905-0922 | 7.30 ppb |
2015-07-07 | 5810-906-0944 | 3.30 ppb |
2015-07-07 | 5810-907-0819 | 3.20 ppb |
2015-07-21 | 5810-034-0812 | ND |
2015-10-07 | 5810-900-0910 | 3.80 ppb |
2015-10-07 | 5810-901-0855 | 4.40 ppb |
2015-10-07 | 5810-902-0825 | 3.10 ppb |
2015-10-07 | 5810-903-0800 | 1.80 ppb |
2015-10-07 | 5810-904-0925 | 4.00 ppb |
2015-10-07 | 5810-905-0840 | 4.50 ppb |
2015-10-07 | 5810-906-0725 | 3.60 ppb |
2015-10-07 | 5810-907-0940 | 3.40 ppb |
2015-11-30 | 5810-044-1005 | ND |
2015-12-09 | 5810-013-0625 | ND |
2016-01-05 | 5810-900-0805 | 1.60 ppb |
2016-01-05 | 5810-901-0829 | 3.80 ppb |
2016-01-05 | 5810-902-0857 | 1.40 ppb |
2016-01-05 | 5810-903-0938 | 1.90 ppb |
2016-01-05 | 5810-904-1044 | 3.00 ppb |
2016-01-05 | 5810-905-1001 | 2.20 ppb |
2016-01-05 | 5810-906-1131 | 2.60 ppb |
2016-01-05 | 5810-907-1059 | 2.80 ppb |
2016-03-08 | 5810-032-0540 | ND |
2016-04-05 | 5810-900-0951 | 3.40 ppb |
2016-04-05 | 5810-901-1104 | 7.80 ppb |
2016-04-05 | 5810-902-1005 | 2.60 ppb |
2016-04-05 | 5810-903-1033 | 3.80 ppb |
2016-04-05 | 5810-904-0741 | 4.80 ppb |
2016-04-05 | 5810-905-1018 | 2.20 ppb |
2016-04-05 | 5810-906-0843 | 3.50 ppb |
2016-04-05 | 5810-907-0809 | 3.80 ppb |
2016-04-19 | 5810-012-0920 | ND |
2016-06-14 | 5810-038-0645 | ND |
2016-07-06 | 5810-900-0747 | 1.50 ppb |
2016-07-06 | 5810-901-0806 | 4.80 ppb |
2016-07-06 | 5810-902-0727 | 3.00 ppb |
2016-07-06 | 5810-903-0901 | 2.90 ppb |
2016-07-06 | 5810-904-0947 | 2.90 ppb |
2016-07-06 | 5810-905-0836 | 3.20 ppb |
2016-07-06 | 5810-906-0704 | 2.60 ppb |
2016-07-06 | 5810-907-0926 | 2.70 ppb |
2016-08-23 | 5810-014-0715 | ND |
2016-10-04 | 5810-900-0918 | 2.60 ppb |
2016-10-04 | 5810-901-0933 | 3.30 ppb |
2016-10-04 | 5810-902-0951 | 3.40 ppb |
2016-10-04 | 5810-903-1022 | 3.20 ppb |
2016-10-04 | 5810-904-1144 | 2.90 ppb |
2016-10-04 | 5810-905-1159 | 3.00 ppb |
2016-10-04 | 5810-906-0645 | 2.60 ppb |
2016-10-04 | 5810-907-1040 | 2.30 ppb |
2017-01-03 | 5810-900-0820 | 2.50 ppb |
2017-01-03 | 5810-901-0747 | 2.50 ppb |
2017-01-03 | 5810-902-0808 | 2.60 ppb |
2017-01-03 | 5810-903-0838 | 2.60 ppb |
2017-01-03 | 5810-904-0734 | 2.30 ppb |
2017-01-03 | 5810-905-0757 | 3.70 ppb |
2017-01-03 | 5810-906-0550 | 2.30 ppb |
2017-01-03 | 5810-907-0620 | 2.10 ppb |
2017-04-04 | 5810-042-0535 | ND |
2017-04-04 | 5810-900-0921 | 3.20 ppb |
2017-04-04 | 5810-901-0934 | 5.00 ppb |
2017-04-04 | 5810-902-0953 | 3.00 ppb |
2017-04-04 | 5810-903-1033 | 4.10 ppb |
2017-04-04 | 5810-904-0829 | 2.40 ppb |
2017-04-04 | 5810-905-0944 | 4.90 ppb |
2017-04-04 | 5810-906-0625 | 3.40 ppb |
2017-04-04 | 5810-907-0555 | 3.10 ppb |
2017-07-03 | 5810-900-0919 | 4.20 ppb |
2017-07-03 | 5810-901-0900 | 2.40 ppb |
2017-07-03 | 5810-902-0949 | 2.80 ppb |
2017-07-03 | 5810-903-1030 | 2.20 ppb |
2017-07-03 | 5810-904-0839 | 2.00 ppb |
2017-07-03 | 5810-905-0941 | 4.80 ppb |
2017-07-03 | 5810-906-1054 | 2.10 ppb |
2017-07-03 | 5810-907-1110 | 2.20 ppb |
2017-07-10 | 5810-016-0800 | ND |
2017-07-10 | 5810-028-0847 | ND |
2017-08-08 | 5810-015-0625 | ND |
2017-10-02 | 5810-900-1000 | 3.20 ppb |
2017-10-02 | 5810-901-1011 | 5.00 ppb |
2017-10-02 | 5810-902-1020 | 3.30 ppb |
2017-10-02 | 5810-903-1030 | 4.60 ppb |
2017-10-02 | 5810-904-1112 | 2.00 ppb |
2017-10-02 | 5810-905-1053 | 5.80 ppb |
2017-10-03 | 5810-906-0905 | 2.10 ppb |
2017-10-03 | 5810-907-0930 | 2.20 ppb |
2018-01-02 | 5810-900-0830 | 3.40 ppb |
2018-01-02 | 5810-901-0852 | 3.80 ppb |
2018-01-02 | 5810-902-0907 | 3.10 ppb |
2018-01-02 | 5810-903-0919 | 4.60 ppb |
2018-01-02 | 5810-904-0933 | 2.60 ppb |
2018-01-02 | 5810-905-0947 | 3.90 ppb |
2018-01-02 | 5810-906-0804 | 2.00 ppb |
2018-01-02 | 5810-907-0747 | 2.10 ppb |
2018-02-13 | 5810-040-0910 | ND |
2018-04-02 | 5810-900-0755 | 2.10 ppb |
2018-04-02 | 5810-901-0810 | 2.90 ppb |
2018-04-02 | 5810-902-0835 | 2.30 ppb |
2018-04-02 | 5810-903-1000 | 3.40 ppb |
2018-04-02 | 5810-904-1035 | 2.30 ppb |
2018-04-02 | 5810-905-1020 | 3.50 ppb |
2018-04-02 | 5810-906-1147 | 1.80 ppb |
2018-04-02 | 5810-907-1416 | 1.90 ppb |
2018-06-12 | 5810-049-0845 | ND |
2018-07-03 | 5810-900-0712 | ND |
2018-07-03 | 5810-901-0727 | 4.90 ppb |
2018-07-03 | 5810-902-0740 | 1.20 ppb |
2018-07-03 | 5810-903-0803 | 1.000 ppb |
2018-07-03 | 5810-904-0813 | 1.30 ppb |
2018-07-03 | 5810-905-0847 | 2.50 ppb |
2018-07-03 | 5810-906-0732 | 1.10 ppb |
2018-07-03 | 5810-907-0752 | 1.10 ppb |
2018-10-02 | 5810-900-0755 | 1.10 ppb |
2018-10-02 | 5810-901-0744 | 3.50 ppb |
2018-10-02 | 5810-902-0805 | 1.30 ppb |
2018-10-02 | 5810-903-0824 | 1.30 ppb |
2018-10-02 | 5810-904-0722 | 1.10 ppb |
2018-10-02 | 5810-905-0813 | 3.80 ppb |
2018-10-02 | 5810-906-0820 | 1.50 ppb |
2018-10-02 | 5810-907-0801 | 1.70 ppb |
2018-12-11 | 5810-013-0540 | ND |
2019-01-02 | 5810-900-0726 | 1.80 ppb |
2019-01-02 | 5810-901-0741 | 2.00 ppb |
2019-01-02 | 5810-902-0753 | 1.90 ppb |
2019-01-02 | 5810-903-0806 | 2.70 ppb |
2019-01-02 | 5810-904-0820 | 1.80 ppb |
2019-01-02 | 5810-905-0837 | 2.50 ppb |
2019-01-02 | 5810-906-0824 | 1.60 ppb |
2019-01-02 | 5810-907-0652 | 1.60 ppb |
2019-03-12 | 5810-032-0655 | ND |
2019-04-01 | 5810-900-0902 | 2.10 ppb |
2019-04-01 | 5810-901-0914 | 2.50 ppb |
2019-04-01 | 5810-902-1141 | 2.80 ppb |
2019-04-01 | 5810-903-1114 | 2.60 ppb |
2019-04-01 | 5810-904-0753 | ND |
2019-04-01 | 5810-905-0940 | 3.10 ppb |
2019-04-01 | 5810-906-1021 | 2.10 ppb |
2019-04-01 | 5810-907-1121 | 2.30 ppb |
2019-07-01 | 5810-900-1330 | 2.50 ppb |
2019-07-01 | 5810-901-1339 | 2.00 ppb |
2019-07-01 | 5810-902-1400 | 2.70 ppb |
2019-07-01 | 5810-903-1409 | 1.70 ppb |
2019-07-01 | 5810-904-1425 | 2.10 ppb |
2019-07-01 | 5810-905-1350 | 4.20 ppb |
2019-07-01 | 5810-906-1138 | 1.70 ppb |
2019-07-01 | 5810-907-0650 | 1.70 ppb |
2019-09-30 | 5810-901-0925 | 1.80 ppb |
2019-09-30 | 5810-903-1030 | 2.40 ppb |
2019-09-30 | 5810-904-0810 | 1.90 ppb |
2019-09-30 | 5810-905-0940 | 2.30 ppb |
2019-10-01 | 5810-900-0911 | 1.80 ppb |
2019-10-01 | 5810-901-0925 | 1.80 ppb |
2019-10-01 | 5810-902-0952 | 1.90 ppb |
2019-10-01 | 5810-903-1030 | 2.40 ppb |
2019-10-01 | 5810-904-0810 | 1.90 ppb |
2019-10-01 | 5810-905-0940 | 2.30 ppb |
2019-10-01 | 5810-906-0630 | 1.60 ppb |
2019-10-01 | 5810-907-0605 | 1.70 ppb |