Dichloroacetic acid
Metropolitan Utilities District
Dichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids 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 | 12.7 ppb | 48 | 48 | 4.51 ppb - 21.6 ppb |
2015 | 15.1 ppb | 48 | 48 | 5.98 ppb - 29.3 ppb |
2016 | 12.6 ppb | 48 | 48 | 5.84 ppb - 21.2 ppb |
2017 | 12.5 ppb | 48 | 48 | 6.44 ppb - 29.0 ppb |
2018 | 14.5 ppb | 48 | 48 | 5.99 ppb - 28.6 ppb |
2019 | 18.8 ppb | 48 | 48 | 7.27 ppb - 36.0 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.2 ppb
The EWG Health Guideline of 0.2 ppb for dichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.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 |
---|---|---|
2014-02-04 | 283298 | 9.64 ppb |
2014-02-04 | 283302 | 11.7 ppb |
2014-02-04 | 283306 | 8.13 ppb |
2014-02-04 | 283307 | 9.30 ppb |
2014-02-04 | 283308 | 6.35 ppb |
2014-02-04 | 283309 | 8.18 ppb |
2014-02-11 | 287607 | 6.74 ppb |
2014-02-11 | 287608 | 7.68 ppb |
2014-02-11 | 287609 | 8.28 ppb |
2014-02-11 | 287610 | 8.05 ppb |
2014-02-11 | 287611 | 7.72 ppb |
2014-02-11 | 287612 | 8.63 ppb |
2014-05-05 | 295275 | 4.85 ppb |
2014-05-05 | 295276 | 10.3 ppb |
2014-05-05 | 295277 | 12.7 ppb |
2014-05-05 | 295278 | 12.4 ppb |
2014-05-05 | 295279 | 16.6 ppb |
2014-05-05 | 295268 | 10.3 ppb |
2014-05-05 | 295269 | 11.3 ppb |
2014-05-05 | 295270 | 11.3 ppb |
2014-05-05 | 295271 | 12.4 ppb |
2014-05-05 | 295272 | 11.8 ppb |
2014-05-05 | 295273 | 4.51 ppb |
2014-05-05 | 295274 | 12.9 ppb |
2014-08-05 | 311970 | 13.2 ppb |
2014-08-05 | 311971 | 14.9 ppb |
2014-08-05 | 311972 | 18.1 ppb |
2014-08-05 | 311973 | 18.8 ppb |
2014-08-05 | 311974 | 21.6 ppb |
2014-08-05 | 311975 | 19.3 ppb |
2014-08-05 | 311976 | 20.5 ppb |
2014-08-05 | 311977 | 19.9 ppb |
2014-08-05 | 311978 | 18.4 ppb |
2014-08-05 | 311979 | 20.0 ppb |
2014-08-05 | 311968 | 16.4 ppb |
2014-08-05 | 311969 | 18.6 ppb |
2014-11-03 | 332923 | 13.4 ppb |
2014-11-03 | 332924 | 13.2 ppb |
2014-11-03 | 332921 | 16.5 ppb |
2014-11-03 | 332922 | 11.8 ppb |
2014-11-03 | 332913 | 13.0 ppb |
2014-11-03 | 332914 | 11.4 ppb |
2014-11-03 | 332915 | 13.6 ppb |
2014-11-03 | 332916 | 9.76 ppb |
2014-11-03 | 332917 | 12.1 ppb |
2014-11-03 | 332918 | 14.5 ppb |
2014-11-03 | 332919 | 14.1 ppb |
2014-11-03 | 332920 | 14.5 ppb |
2015-02-02 | 346534 | 12.5 ppb |
2015-02-02 | 346535 | 10.3 ppb |
2015-02-02 | 346538 | 5.98 ppb |
2015-02-02 | 346539 | 12.0 ppb |
2015-02-02 | 346540 | 10.9 ppb |
2015-02-02 | 346541 | 11.8 ppb |
2015-02-02 | 346542 | 10.8 ppb |
2015-02-02 | 346543 | 9.38 ppb |
2015-02-02 | 346544 | 12.3 ppb |
2015-02-02 | 346545 | 15.9 ppb |
2015-02-02 | 346536 | 11.7 ppb |
2015-02-02 | 346537 | 6.50 ppb |
2015-05-05 | 361716 | 9.72 ppb |
2015-05-05 | 361717 | 7.31 ppb |
2015-05-05 | 361718 | 15.9 ppb |
2015-05-05 | 361719 | 15.6 ppb |
2015-05-05 | 361720 | 7.64 ppb |
2015-05-05 | 361721 | 15.7 ppb |
2015-05-05 | 361723 | 13.3 ppb |
2015-05-05 | 361724 | 15.5 ppb |
2015-05-05 | 361725 | 9.86 ppb |
2015-05-05 | 361726 | 8.80 ppb |
2015-05-05 | 361727 | 9.70 ppb |
2015-05-05 | 361722 | 7.60 ppb |
2015-08-03 | 374528 | 24.2 ppb |
2015-08-03 | 374531 | 27.3 ppb |
2015-08-03 | 374532 | 26.4 ppb |
2015-08-03 | 374533 | 22.0 ppb |
2015-08-03 | 374534 | 29.3 ppb |
2015-08-03 | 374535 | 17.0 ppb |
2015-08-03 | 374536 | 27.3 ppb |
2015-08-03 | 374537 | 27.9 ppb |
2015-08-03 | 374526 | 14.7 ppb |
2015-08-03 | 374527 | 24.2 ppb |
2015-08-03 | 374529 | 26.9 ppb |
2015-08-03 | 374530 | 15.6 ppb |
2015-11-04 | 393699 | 9.69 ppb |
2015-11-04 | 393700 | 17.5 ppb |
2015-11-04 | 393701 | 17.0 ppb |
2015-11-04 | 393702 | 16.3 ppb |
2015-11-04 | 393703 | 20.8 ppb |
2015-11-04 | 393704 | 13.0 ppb |
2015-11-04 | 393705 | 12.4 ppb |
2015-11-04 | 393706 | 14.5 ppb |
2015-11-04 | 393695 | 11.3 ppb |
2015-11-04 | 393696 | 12.2 ppb |
2015-11-04 | 393697 | 14.7 ppb |
2015-11-04 | 393698 | 15.5 ppb |
2016-02-01 | 8.00 ppb | |
2016-02-01 | 6.35 ppb | |
2016-02-01 | 7.19 ppb | |
2016-02-01 | 5.84 ppb | |
2016-02-01 | 8.13 ppb | |
2016-02-01 | 7.20 ppb | |
2016-02-01 | 8.55 ppb | |
2016-02-01 | 9.73 ppb | |
2016-02-01 | 9.73 ppb | |
2016-02-01 | 10.6 ppb | |
2016-02-01 | 9.83 ppb | |
2016-02-01 | 10.7 ppb | |
2016-05-02 | 17.2 ppb | |
2016-05-02 | 16.2 ppb | |
2016-05-02 | 14.2 ppb | |
2016-05-02 | 9.28 ppb | |
2016-05-02 | 9.31 ppb | |
2016-05-02 | 19.3 ppb | |
2016-05-02 | 17.6 ppb | |
2016-05-02 | 16.0 ppb | |
2016-05-02 | 14.2 ppb | |
2016-05-02 | 15.5 ppb | |
2016-05-02 | 19.9 ppb | |
2016-05-02 | 21.2 ppb | |
2016-08-02 | 18.7 ppb | |
2016-08-02 | 19.0 ppb | |
2016-08-02 | 12.3 ppb | |
2016-08-02 | 11.8 ppb | |
2016-08-02 | 19.9 ppb | |
2016-08-02 | 15.7 ppb | |
2016-08-02 | 20.5 ppb | |
2016-08-02 | 18.8 ppb | |
2016-08-02 | 16.9 ppb | |
2016-08-02 | 20.1 ppb | |
2016-08-02 | 18.9 ppb | |
2016-08-02 | 20.3 ppb | |
2016-11-07 | 6.35 ppb | |
2016-11-07 | 9.99 ppb | |
2016-11-07 | 6.45 ppb | |
2016-11-07 | 6.55 ppb | |
2016-11-07 | 6.43 ppb | |
2016-11-07 | 9.27 ppb | |
2016-11-07 | 10.4 ppb | |
2016-11-07 | 10.4 ppb | |
2016-11-07 | 10.2 ppb | |
2016-11-07 | 9.78 ppb | |
2016-11-07 | 9.56 ppb | |
2016-11-07 | 6.08 ppb | |
2017-02-07 | 8.07 ppb | |
2017-02-07 | 24.8 ppb | |
2017-02-07 | 16.6 ppb | |
2017-02-07 | 16.0 ppb | |
2017-02-07 | 17.1 ppb | |
2017-02-07 | 9.12 ppb | |
2017-02-07 | 7.37 ppb | |
2017-02-07 | 8.64 ppb | |
2017-02-07 | 8.29 ppb | |
2017-02-07 | 7.70 ppb | |
2017-02-07 | 9.70 ppb | |
2017-02-07 | 16.5 ppb | |
2017-05-02 | 6.48 ppb | |
2017-05-02 | 6.44 ppb | |
2017-05-02 | 9.96 ppb | |
2017-05-02 | 9.04 ppb | |
2017-05-02 | 15.1 ppb | |
2017-05-02 | 10.8 ppb | |
2017-05-02 | 11.7 ppb | |
2017-05-02 | 9.72 ppb | |
2017-05-02 | 11.8 ppb | |
2017-05-02 | 9.18 ppb | |
2017-05-15 | 29.0 ppb | |
2017-05-15 | 20.9 ppb | |
2017-08-07 | 16.5 ppb | |
2017-08-07 | 13.3 ppb | |
2017-08-07 | 13.1 ppb | |
2017-08-07 | 15.6 ppb | |
2017-08-07 | 12.8 ppb | |
2017-08-07 | 14.7 ppb | |
2017-08-07 | 14.1 ppb | |
2017-08-07 | 12.6 ppb | |
2017-08-07 | 11.7 ppb | |
2017-08-07 | 12.3 ppb | |
2017-08-07 | 13.6 ppb | |
2017-08-07 | 12.7 ppb | |
2017-11-07 | 10.4 ppb | |
2017-11-07 | 9.50 ppb | |
2017-11-07 | 10.1 ppb | |
2017-11-07 | 17.5 ppb | |
2017-11-07 | 10.9 ppb | |
2017-11-07 | 8.51 ppb | |
2017-11-07 | 11.2 ppb | |
2017-11-07 | 10.8 ppb | |
2017-11-07 | 9.16 ppb | |
2017-11-07 | 9.67 ppb | |
2017-11-07 | 10.1 ppb | |
2017-11-07 | 19.2 ppb | |
2018-02-06 | 534077 | 6.38 ppb |
2018-02-06 | 534078 | 6.19 ppb |
2018-02-06 | 534079 | 8.91 ppb |
2018-02-06 | 534080 | 8.51 ppb |
2018-02-06 | 534081 | 8.59 ppb |
2018-02-06 | 534082 | 8.66 ppb |
2018-02-06 | 534083 | 5.99 ppb |
2018-02-06 | 534084 | 6.39 ppb |
2018-02-06 | 534085 | 6.19 ppb |
2018-02-06 | 534086 | 8.61 ppb |
2018-02-06 | 534087 | 9.15 ppb |
2018-02-06 | 534088 | 7.04 ppb |
2018-05-07 | 549802 | 27.1 ppb |
2018-05-07 | 549803 | 7.66 ppb |
2018-05-07 | 549804 | 7.49 ppb |
2018-05-07 | 549805 | 22.1 ppb |
2018-05-07 | 549806 | 17.9 ppb |
2018-05-07 | 549807 | 26.8 ppb |
2018-05-07 | 549808 | 26.5 ppb |
2018-05-07 | 549809 | 19.1 ppb |
2018-05-07 | 549810 | 26.3 ppb |
2018-05-07 | 549811 | 26.5 ppb |
2018-05-07 | 549812 | 27.0 ppb |
2018-05-07 | 549813 | 28.6 ppb |
2018-08-08 | 567007 | 18.3 ppb |
2018-08-08 | 567008 | 15.0 ppb |
2018-08-08 | 567009 | 14.6 ppb |
2018-08-08 | 567010 | 13.5 ppb |
2018-08-08 | 567011 | 13.3 ppb |
2018-08-08 | 567012 | 14.1 ppb |
2018-08-08 | 567013 | 15.0 ppb |
2018-08-08 | 567014 | 17.0 ppb |
2018-08-08 | 567015 | 16.2 ppb |
2018-08-08 | 567016 | 13.3 ppb |
2018-08-08 | 567017 | 15.8 ppb |
2018-08-08 | 567018 | 16.2 ppb |
2018-11-06 | 583362 | 13.4 ppb |
2018-11-06 | 583363 | 14.5 ppb |
2018-11-06 | 583364 | 13.4 ppb |
2018-11-06 | 583365 | 12.0 ppb |
2018-11-06 | 583366 | 14.6 ppb |
2018-11-06 | 583367 | 12.8 ppb |
2018-11-06 | 583368 | 11.7 ppb |
2018-11-06 | 583369 | 10.8 ppb |
2018-11-06 | 583370 | 15.5 ppb |
2018-11-06 | 583371 | 13.2 ppb |
2018-11-06 | 583372 | 14.3 ppb |
2018-11-06 | 583373 | 13.7 ppb |
2019-02-05 | 595224 | 7.27 ppb |
2019-02-05 | 595225 | 8.62 ppb |
2019-02-05 | 595226 | 9.39 ppb |
2019-02-05 | 595227 | 8.79 ppb |
2019-02-05 | 595228 | 8.80 ppb |
2019-02-05 | 595229 | 10.6 ppb |
2019-02-05 | 595230 | 10.8 ppb |
2019-02-05 | 595231 | 9.43 ppb |
2019-02-05 | 595232 | 9.01 ppb |
2019-02-05 | 595233 | 9.97 ppb |
2019-02-05 | 595234 | 8.81 ppb |
2019-02-05 | 595235 | 9.22 ppb |
2019-05-07 | 600552 | 11.5 ppb |
2019-05-07 | 600553 | 10.8 ppb |
2019-05-07 | 600554 | 31.8 ppb |
2019-05-07 | 600555 | 22.5 ppb |
2019-05-07 | 600556 | 33.4 ppb |
2019-05-07 | 600557 | 34.5 ppb |
2019-05-07 | 600558 | 35.9 ppb |
2019-05-07 | 600559 | 22.0 ppb |
2019-05-07 | 600560 | 36.0 ppb |
2019-05-07 | 600561 | 33.4 ppb |
2019-05-07 | 600562 | 34.7 ppb |
2019-05-07 | 600563 | 33.5 ppb |
2019-08-06 | 622436 | 21.7 ppb |
2019-08-06 | 622437 | 23.0 ppb |
2019-08-06 | 622438 | 23.4 ppb |
2019-08-06 | 622439 | 16.1 ppb |
2019-08-06 | 622440 | 20.5 ppb |
2019-08-06 | 622441 | 19.7 ppb |
2019-08-06 | 622442 | 22.1 ppb |
2019-08-06 | 622443 | 20.5 ppb |
2019-08-06 | 622444 | 22.5 ppb |
2019-08-06 | 622445 | 23.7 ppb |
2019-08-06 | 622446 | 19.3 ppb |
2019-08-06 | 622447 | 19.2 ppb |
2019-11-05 | 644366 | 21.2 ppb |
2019-11-05 | 644367 | 13.9 ppb |
2019-11-05 | 644368 | 20.8 ppb |
2019-11-05 | 644369 | 13.1 ppb |
2019-11-05 | 644370 | 16.5 ppb |
2019-11-05 | 644371 | 18.6 ppb |
2019-11-05 | 644372 | 12.6 ppb |
2019-11-05 | 644373 | 13.3 ppb |
2019-11-05 | 644374 | 15.6 ppb |
2019-11-05 | 644375 | 17.3 ppb |
2019-11-05 | 644376 | 18.5 ppb |
2019-11-05 | 644377 | 18.8 ppb |