Bromoform
Padre Dam Municipal 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 | 4.05 ppb | 32 | 32 | 1.90 ppb - 9.70 ppb |
2015 | 3.11 ppb | 32 | 31 | ND - 6.10 ppb |
2016 | 2.28 ppb | 32 | 27 | ND - 4.70 ppb |
2017 | 3.33 ppb | 32 | 31 | ND - 5.00 ppb |
2018 | 3.16 ppb | 32 | 31 | ND - 9.00 ppb |
2019 | 3.15 ppb | 32 | 31 | ND - 5.10 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 |
---|---|---|
2014-02-12 | 9590-900-0700 | 1.90 ppb |
2014-02-12 | 9590-901-0740 | 2.10 ppb |
2014-02-12 | 9590-902-0800 | 2.00 ppb |
2014-02-12 | 9590-903-0840 | 2.20 ppb |
2014-02-12 | 9590-904-0820 | 2.10 ppb |
2014-02-12 | 9590-905-0720 | 2.10 ppb |
2014-02-12 | 9590-906-0950 | 2.70 ppb |
2014-02-12 | 9590-907-0930 | 2.60 ppb |
2014-05-14 | 9590-900-0700 | 2.00 ppb |
2014-05-14 | 9590-901-0740 | 2.00 ppb |
2014-05-14 | 9590-902-0800 | 2.10 ppb |
2014-05-14 | 9590-903-0850 | 2.10 ppb |
2014-05-14 | 9590-904-0830 | 2.10 ppb |
2014-05-14 | 9590-905-0720 | 2.00 ppb |
2014-05-14 | 9590-906-1000 | 2.30 ppb |
2014-05-14 | 9590-907-0940 | 2.60 ppb |
2014-08-07 | 9590-900-0715 | 8.20 ppb |
2014-08-07 | 9590-901-0815 | 8.20 ppb |
2014-08-07 | 9590-902-0835 | 8.20 ppb |
2014-08-07 | 9590-903-0930 | 9.20 ppb |
2014-08-07 | 9590-904-0905 | 8.20 ppb |
2014-08-07 | 9590-905-0745 | 8.00 ppb |
2014-08-07 | 9590-906-1005 | 9.70 ppb |
2014-08-07 | 9590-907-1030 | 8.80 ppb |
2014-11-13 | 9590-900-0730 | 3.60 ppb |
2014-11-13 | 9590-901-0820 | 3.20 ppb |
2014-11-13 | 9590-902-0840 | 2.90 ppb |
2014-11-13 | 9590-903-0920 | 2.90 ppb |
2014-11-13 | 9590-904-0900 | 2.90 ppb |
2014-11-13 | 9590-905-0800 | 3.40 ppb |
2014-11-13 | 9590-906-1000 | 3.70 ppb |
2014-11-13 | 9590-907-1020 | 3.60 ppb |
2015-02-11 | 9590-900-0740 | 2.00 ppb |
2015-02-11 | 9590-901-0830 | 3.10 ppb |
2015-02-11 | 9590-902-0900 | 3.90 ppb |
2015-02-11 | 9590-903-0940 | 3.90 ppb |
2015-02-11 | 9590-904-0920 | 3.10 ppb |
2015-02-11 | 9590-905-0815 | 2.00 ppb |
2015-02-11 | 9590-906-1010 | 3.80 ppb |
2015-02-11 | 9590-907-1030 | 3.00 ppb |
2015-05-14 | 9590-900-0645 | 3.90 ppb |
2015-05-14 | 9590-901-0730 | 5.10 ppb |
2015-05-14 | 9590-902-0745 | 5.50 ppb |
2015-05-14 | 9590-903-0830 | 6.00 ppb |
2015-05-14 | 9590-904-0815 | 4.90 ppb |
2015-05-14 | 9590-905-0710 | 4.30 ppb |
2015-05-14 | 9590-906-0915 | 6.10 ppb |
2015-05-14 | 9590-907-0940 | 5.40 ppb |
2015-08-17 | 9590-900-0730 | 1.70 ppb |
2015-08-17 | 9590-901-0810 | 2.20 ppb |
2015-08-17 | 9590-902-0825 | 1.90 ppb |
2015-08-17 | 9590-903-0900 | 2.90 ppb |
2015-08-17 | 9590-904-0845 | 2.10 ppb |
2015-08-17 | 9590-905-0745 | 2.20 ppb |
2015-08-17 | 9590-906-0945 | 2.90 ppb |
2015-08-17 | 9590-907-1015 | 3.10 ppb |
2015-11-18 | 9590-900-1045 | ND |
2015-11-18 | 9590-901-0800 | 1.70 ppb |
2015-11-18 | 9590-902-0815 | 1.80 ppb |
2015-11-18 | 9590-903-0900 | 1.50 ppb |
2015-11-18 | 9590-904-0840 | 1.60 ppb |
2015-11-18 | 9590-905-0740 | 2.00 ppb |
2015-11-18 | 9590-906-0930 | 2.80 ppb |
2015-11-18 | 9590-907-1000 | 3.00 ppb |
2016-02-10 | 9590-900-0645 | ND |
2016-02-10 | 9590-901-0740 | 1.40 ppb |
2016-02-10 | 9590-902-0800 | ND |
2016-02-10 | 9590-903-0900 | 1.30 ppb |
2016-02-10 | 9590-904-0830 | 1.50 ppb |
2016-02-10 | 9590-905-0715 | ND |
2016-02-10 | 9590-906-0945 | 4.60 ppb |
2016-02-10 | 9590-907-1020 | 4.70 ppb |
2016-05-11 | 9590-900-0700 | ND |
2016-05-11 | 9590-901-0800 | 1.60 ppb |
2016-05-11 | 9590-902-0820 | ND |
2016-05-11 | 9590-903-0900 | 3.30 ppb |
2016-05-11 | 9590-904-0840 | 2.00 ppb |
2016-05-11 | 9590-905-0730 | 1.20 ppb |
2016-05-11 | 9590-906-0945 | 3.30 ppb |
2016-05-11 | 9590-907-1015 | 3.60 ppb |
2016-08-10 | 9590-900-0710 | 2.50 ppb |
2016-08-10 | 9590-901-0750 | 2.90 ppb |
2016-08-10 | 9590-902-0810 | 3.00 ppb |
2016-08-10 | 9590-903-0850 | 2.90 ppb |
2016-08-10 | 9590-904-0830 | 3.00 ppb |
2016-08-10 | 9590-905-0730 | 2.40 ppb |
2016-08-10 | 9590-906-0930 | 4.30 ppb |
2016-08-10 | 9590-907-1000 | 4.00 ppb |
2016-11-09 | 9590-900-0630 | 2.10 ppb |
2016-11-09 | 9590-901-0720 | 2.20 ppb |
2016-11-09 | 9590-902-0740 | 2.20 ppb |
2016-11-09 | 9590-903-0820 | 2.20 ppb |
2016-11-09 | 9590-904-0800 | 2.30 ppb |
2016-11-09 | 9590-905-0700 | 2.20 ppb |
2016-11-09 | 9590-906-1000 | 3.30 ppb |
2016-11-09 | 9590-907-0900 | 3.00 ppb |
2017-02-08 | 9590-900-0630 | ND |
2017-02-08 | 9590-901-0715 | 2.30 ppb |
2017-02-08 | 9590-902-0730 | 4.60 ppb |
2017-02-08 | 9590-903-0820 | 5.00 ppb |
2017-02-08 | 9590-904-0800 | 2.80 ppb |
2017-02-08 | 9590-905-0700 | 3.00 ppb |
2017-02-08 | 9590-906-0850 | 4.70 ppb |
2017-02-08 | 9590-907-0915 | 3.30 ppb |
2017-05-17 | 9590-900-0640 | 2.10 ppb |
2017-05-17 | 9590-901-0715 | 1.80 ppb |
2017-05-17 | 9590-902-0730 | 1.50 ppb |
2017-05-17 | 9590-903-0815 | 1.20 ppb |
2017-05-17 | 9590-904-0800 | 1.90 ppb |
2017-05-17 | 9590-905-0700 | 1.60 ppb |
2017-05-17 | 9590-906-0845 | 1.60 ppb |
2017-05-17 | 9590-907-0910 | 1.50 ppb |
2017-08-09 | 9590-900-0630 | 3.00 ppb |
2017-08-09 | 9590-901-0710 | 3.90 ppb |
2017-08-09 | 9590-902-0725 | 4.10 ppb |
2017-08-09 | 9590-903-0745 | 4.10 ppb |
2017-08-09 | 9590-904-0800 | 4.00 ppb |
2017-08-09 | 9590-905-0650 | 3.90 ppb |
2017-08-09 | 9590-906-0830 | 4.30 ppb |
2017-08-09 | 9590-907-0900 | 3.70 ppb |
2017-11-08 | 9590-900-0620 | 3.10 ppb |
2017-11-08 | 9590-901-0700 | 5.00 ppb |
2017-11-08 | 9590-902-0720 | 4.60 ppb |
2017-11-08 | 9590-903-0805 | 4.60 ppb |
2017-11-08 | 9590-904-0740 | 4.90 ppb |
2017-11-08 | 9590-905-0645 | 4.80 ppb |
2017-11-08 | 9590-906-0840 | 4.80 ppb |
2017-11-08 | 9590-907-0900 | 5.00 ppb |
2018-03-07 | 9590-900-0710 | ND |
2018-03-07 | 9590-901-0750 | 2.70 ppb |
2018-03-07 | 9590-902-0810 | 2.20 ppb |
2018-03-07 | 9590-903-1020 | 6.30 ppb |
2018-03-07 | 9590-904-0830 | 3.10 ppb |
2018-03-07 | 9590-905-0730 | 3.80 ppb |
2018-03-07 | 9590-906-0950 | 6.80 ppb |
2018-03-07 | 9590-907-0925 | 5.50 ppb |
2018-05-09 | 9590-900-0615 | 2.40 ppb |
2018-05-09 | 9590-901-0650 | 2.20 ppb |
2018-05-09 | 9590-902-0710 | 2.30 ppb |
2018-05-09 | 9590-903-0750 | 2.20 ppb |
2018-05-09 | 9590-904-0730 | 2.30 ppb |
2018-05-09 | 9590-905-0640 | 2.60 ppb |
2018-05-09 | 9590-906-0900 | 2.80 ppb |
2018-05-09 | 9590-907-0830 | 3.20 ppb |
2018-08-08 | 9590-900-0725 | 2.20 ppb |
2018-08-08 | 9590-901-0815 | 2.50 ppb |
2018-08-08 | 9590-902-0830 | 2.40 ppb |
2018-08-08 | 9590-903-0920 | 2.40 ppb |
2018-08-08 | 9590-904-0900 | 2.60 ppb |
2018-08-08 | 9590-905-0750 | 2.50 ppb |
2018-08-08 | 9590-906-1000 | 2.40 ppb |
2018-08-08 | 9590-907-1020 | 2.70 ppb |
2018-11-01 | 4790-900-0845 | 1.90 ppb |
2018-11-01 | 4790-901-0900 | 2.30 ppb |
2018-11-01 | 4790-902-0840 | 2.70 ppb |
2018-11-01 | 4790-903-0800 | 3.00 ppb |
2018-11-01 | 4790-904-0820 | 3.00 ppb |
2018-11-01 | 4790-905-0915 | 2.80 ppb |
2018-11-01 | 4790-906-0710 | 6.30 ppb |
2018-11-01 | 4790-907-0730 | 9.00 ppb |
2019-02-12 | 4790-906-0945 | 2.70 ppb |
2019-02-12 | 4790-907-0840 | 3.00 ppb |
2019-02-13 | 4790-900-0830 | ND |
2019-02-13 | 4790-901-0715 | 1.60 ppb |
2019-02-13 | 4790-902-0730 | 2.20 ppb |
2019-02-13 | 4790-903-0750 | 2.40 ppb |
2019-02-13 | 4790-904-0810 | 1.80 ppb |
2019-02-13 | 4790-905-0700 | 1.000 ppb |
2019-05-08 | 4790-900-0720 | 1.50 ppb |
2019-05-08 | 4790-901-0810 | 2.60 ppb |
2019-05-08 | 4790-902-0840 | 3.70 ppb |
2019-05-08 | 4790-903-0915 | 4.80 ppb |
2019-05-08 | 4790-904-0900 | 2.60 ppb |
2019-05-08 | 4790-905-0745 | 2.30 ppb |
2019-05-08 | 4790-906-0945 | 4.80 ppb |
2019-05-08 | 4790-907-1010 | 4.80 ppb |
2019-08-14 | 4790-900-0740 | 3.00 ppb |
2019-08-14 | 4790-901-0820 | 3.10 ppb |
2019-08-14 | 4790-902-0840 | 3.90 ppb |
2019-08-14 | 4790-903-0940 | 3.80 ppb |
2019-08-14 | 4790-904-0915 | 3.60 ppb |
2019-08-14 | 4790-905-0800 | 2.90 ppb |
2019-08-14 | 4790-906-1015 | 4.40 ppb |
2019-08-14 | 4790-907-1040 | 5.10 ppb |
2019-11-06 | 4790-900-1110 | 3.00 ppb |
2019-11-06 | 4790-901-1035 | 3.50 ppb |
2019-11-06 | 4790-902-1010 | 3.60 ppb |
2019-11-06 | 4790-903-0915 | 4.00 ppb |
2019-11-06 | 4790-904-0945 | 3.10 ppb |
2019-11-06 | 4790-905-1050 | 3.20 ppb |
2019-11-06 | 4790-906-0800 | 4.60 ppb |
2019-11-06 | 4790-907-0825 | 4.30 ppb |