Dichloroacetic acid
Fond Du Lac Waterworks
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 14 | 0 | ND |
| 2015 | 0.813 ppb | 16 | 1 | ND - 13.0 ppb |
| 2016 | 0.121 ppb | 12 | 6 | ND - 0.340 ppb |
| 2017 | 0.288 ppb | 16 | 15 | ND - 0.630 ppb |
| 2018 | 0.186 ppb | 16 | 12 | ND - 0.460 ppb |
| 2019 | 0.387 ppb | 16 | 12 | ND - 0.910 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 |
|---|---|---|
| 2014-02-17 | 770785 | ND |
| 2014-02-17 | 770783 | ND |
| 2014-05-14 | 785685 | ND |
| 2014-05-14 | 785684 | ND |
| 2014-05-14 | 785687 | ND |
| 2014-05-14 | 785686 | ND |
| 2014-08-12 | 809928 | ND |
| 2014-08-12 | 809931 | ND |
| 2014-08-12 | 809930 | ND |
| 2014-08-12 | 809929 | ND |
| 2014-11-11 | 830917 | ND |
| 2014-11-11 | 830916 | ND |
| 2014-11-11 | 830914 | ND |
| 2014-11-11 | 830915 | ND |
| 2015-02-16 | 843829 | ND |
| 2015-02-16 | 843830 | ND |
| 2015-02-16 | 843831 | ND |
| 2015-02-16 | 843832 | ND |
| 2015-05-18 | 860211 | ND |
| 2015-05-18 | 860209 | ND |
| 2015-05-18 | 860208 | ND |
| 2015-05-18 | 860210 | ND |
| 2015-08-17 | 877448 | ND |
| 2015-08-17 | 877445 | ND |
| 2015-08-17 | 877447 | ND |
| 2015-08-17 | 877446 | ND |
| 2015-11-11 | 893798 | ND |
| 2015-11-11 | 893801 | 13.0 ppb |
| 2015-11-11 | 893800 | ND |
| 2015-11-11 | 893799 | ND |
| 2016-02-15 | 905419 | ND |
| 2016-02-15 | 905421 | ND |
| 2016-02-15 | 905420 | ND |
| 2016-02-15 | 905422 | ND |
| 2016-08-15 | 939250 | ND |
| 2016-08-15 | 939248 | 0.110 ppb |
| 2016-08-15 | 939249 | 0.190 ppb |
| 2016-08-15 | 939247 | 0.210 ppb |
| 2016-11-14 | 958942 | ND |
| 2016-11-14 | 958940 | 0.290 ppb |
| 2016-11-14 | 958939 | 0.310 ppb |
| 2016-11-14 | 958941 | 0.340 ppb |
| 2017-02-13 | 973443 | 0.300 ppb |
| 2017-02-13 | 973444 | 0.280 ppb |
| 2017-02-13 | 973446 | ND |
| 2017-02-13 | 973445 | 0.260 ppb |
| 2017-05-15 | 990472 | 0.190 ppb |
| 2017-05-15 | 990469 | 0.420 ppb |
| 2017-05-15 | 990471 | 0.510 ppb |
| 2017-05-15 | 990470 | 0.630 ppb |
| 2017-08-16 | 1011999 | 0.340 ppb |
| 2017-08-16 | 1012000 | 0.410 ppb |
| 2017-08-16 | 1011998 | 0.320 ppb |
| 2017-08-16 | 1011997 | 0.200 ppb |
| 2017-11-13 | 1029591 | 0.220 ppb |
| 2017-11-13 | 1029590 | 0.200 ppb |
| 2017-11-13 | 1029592 | 0.190 ppb |
| 2017-11-13 | 1029593 | 0.130 ppb |
| 2018-02-13 | 1040803 | ND |
| 2018-02-13 | 1040802 | 0.340 ppb |
| 2018-02-13 | 1040800 | 0.350 ppb |
| 2018-02-13 | 1040801 | 0.460 ppb |
| 2018-05-14 | 1055386 | ND |
| 2018-05-14 | 1055389 | ND |
| 2018-05-14 | 1055387 | 0.130 ppb |
| 2018-05-14 | 1055388 | 0.140 ppb |
| 2018-08-13 | 1073422 | 0.0870 ppb |
| 2018-08-13 | 1073423 | 0.290 ppb |
| 2018-08-13 | 1073424 | 0.250 ppb |
| 2018-08-13 | 1073425 | ND |
| 2018-11-12 | 1092410 | 0.120 ppb |
| 2018-11-12 | 1092411 | 0.280 ppb |
| 2018-11-12 | 1092412 | 0.300 ppb |
| 2018-11-12 | 1092413 | 0.230 ppb |
| 2019-02-18 | 1105569 | ND |
| 2019-02-18 | 1105566 | 0.280 ppb |
| 2019-02-18 | 1105568 | 0.400 ppb |
| 2019-02-18 | 1105567 | 0.720 ppb |
| 2019-05-14 | 1121046 | ND |
| 2019-05-14 | 1121048 | 0.740 ppb |
| 2019-05-14 | 1121047 | 0.590 ppb |
| 2019-05-14 | 1121045 | ND |
| 2019-08-12 | 1140153 | ND |
| 2019-08-12 | 1140151 | 0.600 ppb |
| 2019-08-12 | 1140150 | 0.600 ppb |
| 2019-08-12 | 1140152 | 0.910 ppb |
| 2019-11-11 | 1160247 | 0.200 ppb |
| 2019-11-11 | 1160248 | 0.250 ppb |
| 2019-11-11 | 1160249 | 0.400 ppb |
| 2019-11-11 | 1160250 | 0.500 ppb |