Bromochloroacetic acid
City of Watsonville
Bromochloroacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Bromochloroacetic acid and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.0813 ppb | 32 | 2 | ND - 1.50 ppb |
2015 | 0.506 ppb | 32 | 12 | ND - 1.80 ppb |
2016 | 1.08 ppb | 32 | 11 | ND - 7.20 ppb |
2017 | 2.08 ppb | 32 | 17 | ND - 6.60 ppb |
2018 | 2.46 ppb | 32 | 16 | ND - 6.90 ppb |
2019 | 2.15 ppb | 32 | 13 | ND - 6.80 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.02 ppb
The EWG Health Guideline of 0.02 ppb for bromochloroacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-02-19 | 9590-801-1310 | ND |
2014-02-19 | 9590-802-1030 | ND |
2014-02-19 | 9590-803-0945 | ND |
2014-02-19 | 9590-804-1145 | ND |
2014-02-19 | 9590-805-0850 | ND |
2014-02-19 | 9590-806-1345 | ND |
2014-02-19 | 9590-807-1125 | ND |
2014-02-19 | 9590-808-0915 | ND |
2014-05-21 | 9590-801-1000 | ND |
2014-05-21 | 9590-802-0915 | ND |
2014-05-21 | 9590-803-0845 | ND |
2014-05-21 | 9590-804-0945 | ND |
2014-05-21 | 9590-805-0809 | ND |
2014-05-21 | 9590-806-1020 | ND |
2014-05-21 | 9590-807-0930 | ND |
2014-05-21 | 9590-808-0828 | ND |
2014-08-13 | 9590-801-1110 | ND |
2014-08-13 | 9590-802-0950 | ND |
2014-08-13 | 9590-803-0920 | ND |
2014-08-13 | 9590-804-1040 | 1.10 ppb |
2014-08-13 | 9590-805-0815 | ND |
2014-08-13 | 9590-806-1145 | ND |
2014-08-13 | 9590-807-1020 | 1.50 ppb |
2014-08-13 | 9590-808-0845 | ND |
2014-11-12 | 9590-801-1145 | ND |
2014-11-12 | 9590-802-1000 | ND |
2014-11-12 | 9590-803-0940 | ND |
2014-11-12 | 9590-804-1045 | ND |
2014-11-12 | 9590-805-0900 | ND |
2014-11-12 | 9590-806-1215 | ND |
2014-11-12 | 9590-807-1025 | ND |
2014-11-12 | 9590-808-0920 | ND |
2015-02-09 | 9590-801-1150 | 1.30 ppb |
2015-02-09 | 9590-802-1035 | ND |
2015-02-09 | 9590-803-1010 | ND |
2015-02-09 | 9590-804-1120 | 1.50 ppb |
2015-02-09 | 9590-805-0920 | ND |
2015-02-09 | 9590-806-1210 | ND |
2015-02-09 | 9590-807-1100 | 1.60 ppb |
2015-02-09 | 9590-808-0945 | ND |
2015-05-13 | 9590-801-1110 | ND |
2015-05-13 | 9590-802-1000 | 1.10 ppb |
2015-05-13 | 9590-803-0930 | ND |
2015-05-13 | 9590-804-1020 | 1.10 ppb |
2015-05-13 | 9590-805-0830 | ND |
2015-05-13 | 9590-806-1135 | ND |
2015-05-13 | 9590-807-1050 | 1.20 ppb |
2015-05-13 | 9590-808-0900 | ND |
2015-08-12 | 9590-801-1130 | ND |
2015-08-12 | 9590-802-1015 | ND |
2015-08-12 | 9590-803-0945 | 1.10 ppb |
2015-08-12 | 9590-804-1100 | ND |
2015-08-12 | 9590-805-0855 | ND |
2015-08-12 | 9590-806-1300 | 1.10 ppb |
2015-08-12 | 9590-807-1040 | ND |
2015-08-12 | 9590-808-0930 | ND |
2015-11-09 | 9590-801-1250 | 1.80 ppb |
2015-11-09 | 9590-802-1130 | 1.70 ppb |
2015-11-09 | 9590-803-1100 | 1.40 ppb |
2015-11-09 | 9590-804-1230 | ND |
2015-11-09 | 9590-805-1005 | ND |
2015-11-09 | 9590-806-1310 | ND |
2015-11-09 | 9590-807-1200 | 1.30 ppb |
2015-11-09 | 9590-808-1035 | ND |
2016-02-10 | 9590-801-1150 | ND |
2016-02-10 | 9590-802-1045 | 1.10 ppb |
2016-02-10 | 9590-803-1010 | ND |
2016-02-10 | 9590-804-1130 | 1.10 ppb |
2016-02-10 | 9590-805-0900 | ND |
2016-02-10 | 9590-806-1215 | ND |
2016-02-10 | 9590-807-1110 | 1.10 ppb |
2016-02-10 | 9590-808-0930 | ND |
2016-05-23 | 9590-801-1130 | ND |
2016-05-23 | 9590-802-1030 | ND |
2016-05-23 | 9590-803-0930 | ND |
2016-05-23 | 9590-804-1105 | ND |
2016-05-23 | 9590-805-0845 | ND |
2016-05-23 | 9590-806-1155 | ND |
2016-05-23 | 9590-807-1050 | ND |
2016-05-23 | 9590-808-0905 | ND |
2016-08-17 | 9590-801-1300 | ND |
2016-08-17 | 9590-802-1130 | 7.20 ppb |
2016-08-17 | 9590-803-1030 | 4.30 ppb |
2016-08-17 | 9590-804-1330 | 6.50 ppb |
2016-08-17 | 9590-805-0915 | ND |
2016-08-17 | 9590-806-1350 | 3.20 ppb |
2016-08-17 | 9590-807-1230 | 6.00 ppb |
2016-08-17 | 9590-808-1000 | 1.30 ppb |
2016-11-09 | 9590-801-1230 | 1.20 ppb |
2016-11-09 | 9590-802-1015 | 1.40 ppb |
2016-11-09 | 9590-803-0950 | ND |
2016-11-09 | 9590-804-1200 | ND |
2016-11-09 | 9590-805-0905 | ND |
2016-11-09 | 9590-806-1250 | ND |
2016-11-09 | 9590-807-1050 | ND |
2016-11-09 | 9590-808-0930 | ND |
2017-02-27 | 9590-801-1215 | 1.20 ppb |
2017-02-27 | 9590-802-1015 | 1.30 ppb |
2017-02-27 | 9590-803-0945 | ND |
2017-02-27 | 9590-804-1115 | 1.30 ppb |
2017-02-27 | 9590-805-0845 | ND |
2017-02-27 | 9590-806-1235 | ND |
2017-02-27 | 9590-807-1045 | 1.20 ppb |
2017-02-27 | 9590-808-0915 | ND |
2017-05-31 | 9590-801-1130 | ND |
2017-05-31 | 9590-802-1025 | ND |
2017-05-31 | 9590-803-1000 | ND |
2017-05-31 | 9590-804-1110 | ND |
2017-05-31 | 9590-805-0900 | ND |
2017-05-31 | 9590-806-1150 | ND |
2017-05-31 | 9590-807-1050 | ND |
2017-05-31 | 9590-808-0935 | ND |
2017-08-16 | 9590-801-1255 | ND |
2017-08-16 | 9590-802-1150 | 6.60 ppb |
2017-08-16 | 9590-803-1040 | 6.40 ppb |
2017-08-16 | 9590-804-1220 | 2.60 ppb |
2017-08-16 | 9590-805-0950 | 3.10 ppb |
2017-08-16 | 9590-806-1330 | ND |
2017-08-16 | 9590-807-1240 | 5.20 ppb |
2017-08-16 | 9590-808-1020 | 3.20 ppb |
2017-11-14 | 9590-801-1200 | 5.20 ppb |
2017-11-14 | 9590-802-1035 | 6.30 ppb |
2017-11-14 | 9590-803-1010 | 6.10 ppb |
2017-11-14 | 9590-804-1110 | 5.90 ppb |
2017-11-14 | 9590-805-0920 | ND |
2017-11-14 | 9590-806-1230 | 2.10 ppb |
2017-11-14 | 9590-807-1130 | 5.40 ppb |
2017-11-14 | 9590-808-0950 | 3.50 ppb |
2018-02-14 | 9590-801-1300 | ND |
2018-02-14 | 9590-802-1200 | 1.000 ppb |
2018-02-14 | 9590-803-1140 | 1.000 ppb |
2018-02-14 | 9590-804-1240 | ND |
2018-02-14 | 9590-805-1100 | ND |
2018-02-14 | 9590-806-1315 | ND |
2018-02-14 | 9590-807-1220 | ND |
2018-02-14 | 9590-808-1120 | ND |
2018-05-09 | 9590-801-1410 | ND |
2018-05-09 | 9590-802-1310 | ND |
2018-05-09 | 9590-803-1240 | ND |
2018-05-09 | 9590-804-1350 | ND |
2018-05-09 | 9590-805-1200 | ND |
2018-05-09 | 9590-806-1440 | ND |
2018-05-09 | 9590-807-1330 | ND |
2018-05-09 | 9590-808-1220 | ND |
2018-08-22 | 9590-801-1010 | 6.50 ppb |
2018-08-22 | 9590-802-1040 | 6.90 ppb |
2018-08-22 | 9590-803-1110 | 6.80 ppb |
2018-08-22 | 9590-804-0920 | 6.90 ppb |
2018-08-22 | 9590-805-1200 | ND |
2018-08-22 | 9590-806-0830 | 4.40 ppb |
2018-08-22 | 9590-807-0945 | 6.90 ppb |
2018-08-22 | 9590-808-1130 | 1.30 ppb |
2018-11-13 | 9590-801-1210 | 5.30 ppb |
2018-11-13 | 9590-802-1045 | 6.20 ppb |
2018-11-13 | 9590-803-1015 | 5.80 ppb |
2018-11-13 | 9590-804-1100 | 6.00 ppb |
2018-11-13 | 9590-805-0930 | ND |
2018-11-13 | 9590-806-1230 | 5.20 ppb |
2018-11-13 | 9590-807-1130 | 6.00 ppb |
2018-11-13 | 9590-808-1000 | 2.40 ppb |
2019-02-20 | 9590-801-1100 | ND |
2019-02-20 | 9590-802-0955 | ND |
2019-02-20 | 9590-803-0935 | ND |
2019-02-20 | 9590-804-1040 | ND |
2019-02-20 | 9590-805-0825 | ND |
2019-02-20 | 9590-806-1125 | ND |
2019-02-20 | 9590-807-1020 | ND |
2019-02-20 | 9590-808-0915 | ND |
2019-05-08 | 9590-801-1000 | ND |
2019-05-08 | 9590-802-0900 | ND |
2019-05-08 | 9590-803-0845 | ND |
2019-05-08 | 9590-804-0940 | ND |
2019-05-08 | 9590-805-0800 | ND |
2019-05-08 | 9590-806-1030 | ND |
2019-05-08 | 9590-807-0920 | ND |
2019-05-08 | 9590-808-0820 | ND |
2019-08-14 | 9590-801-1230 | 5.10 ppb |
2019-08-14 | 9590-802-1110 | 5.50 ppb |
2019-08-14 | 9590-803-1040 | 6.50 ppb |
2019-08-14 | 9590-804-1210 | 6.20 ppb |
2019-08-14 | 9590-805-0945 | ND |
2019-08-14 | 9590-806-1250 | 5.40 ppb |
2019-08-14 | 9590-807-1150 | 6.20 ppb |
2019-08-14 | 9590-808-1010 | 1.10 ppb |
2019-11-13 | 9590-801-1030 | 5.30 ppb |
2019-11-13 | 9590-802-0915 | 6.80 ppb |
2019-11-13 | 9590-803-0850 | 5.40 ppb |
2019-11-13 | 9590-804-1015 | 5.30 ppb |
2019-11-13 | 9590-805-0815 | ND |
2019-11-13 | 9590-806-1050 | 4.20 ppb |
2019-11-13 | 9590-807-1000 | 5.70 ppb |
2019-11-13 | 9590-808-0835 | ND |