Dichloroacetic acid
Saint Paul Regional Water Services
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 |
|---|---|---|---|---|
| 2018 | 18.5 ppb | 48 | 48 | 12.0 ppb - 31.0 ppb |
| 2019 | 17.1 ppb | 48 | 48 | 12.0 ppb - 25.0 ppb |
| 2020 | 15.4 ppb | 48 | 48 | 10.00 ppb - 20.0 ppb |
| 2021 | 13.1 ppb | 48 | 48 | 10.00 ppb - 24.0 ppb |
| 2022 | 15.1 ppb | 48 | 48 | 11.0 ppb - 23.0 ppb |
| 2023 | 13.0 ppb | 48 | 48 | 8.50 ppb - 17.0 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.2 ppb
The EWG Health Guideline of 0.2 ppb for dichloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to reproduction and child development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-14 | 18C0562-01 | 15.0 ppb |
| 2018-03-14 | 18C0562-02 | 15.0 ppb |
| 2018-03-14 | 18C0562-03 | 21.0 ppb |
| 2018-03-14 | 18C0562-04 | 17.0 ppb |
| 2018-03-14 | 18C0563-01 | 19.0 ppb |
| 2018-03-14 | 18C0563-02 | 17.0 ppb |
| 2018-03-14 | 18C0563-03 | 17.0 ppb |
| 2018-03-14 | 18C0563-04 | 15.0 ppb |
| 2018-03-14 | 18C0564-01 | 17.0 ppb |
| 2018-03-14 | 18C0564-02 | 14.0 ppb |
| 2018-03-14 | 18C0564-03 | 14.0 ppb |
| 2018-03-14 | 18C0564-04 | 17.0 ppb |
| 2018-06-19 | 18F1330-01 | 20.0 ppb |
| 2018-06-19 | 18F1330-02 | 15.0 ppb |
| 2018-06-19 | 18F1330-03 | 16.0 ppb |
| 2018-06-19 | 18F1330-04 | 15.0 ppb |
| 2018-06-19 | 18F1331-01 | 15.0 ppb |
| 2018-06-19 | 18F1331-02 | 15.0 ppb |
| 2018-06-19 | 18F1331-03 | 12.0 ppb |
| 2018-06-19 | 18F1331-04 | 18.0 ppb |
| 2018-06-19 | 18F1332-01 | 16.0 ppb |
| 2018-06-19 | 18F1332-02 | 14.0 ppb |
| 2018-06-19 | 18F1332-03 | 18.0 ppb |
| 2018-06-19 | 18F1332-04 | 16.0 ppb |
| 2018-09-11 | 18I0443-01 | 21.0 ppb |
| 2018-09-11 | 18I0443-02 | 20.0 ppb |
| 2018-09-11 | 18I0443-03 | 18.0 ppb |
| 2018-09-11 | 18I0443-04 | 25.0 ppb |
| 2018-09-11 | 18I0444-01 | 19.0 ppb |
| 2018-09-11 | 18I0444-02 | 23.0 ppb |
| 2018-09-11 | 18I0444-03 | 29.0 ppb |
| 2018-09-11 | 18I0444-04 | 31.0 ppb |
| 2018-09-11 | 18I0445-01 | 27.0 ppb |
| 2018-09-11 | 18I0445-02 | 24.0 ppb |
| 2018-09-11 | 18I0445-03 | 29.0 ppb |
| 2018-09-11 | 18I0445-04 | 26.0 ppb |
| 2018-12-11 | 18L0409-01 | 19.0 ppb |
| 2018-12-11 | 18L0409-02 | 16.0 ppb |
| 2018-12-11 | 18L0409-03 | 15.0 ppb |
| 2018-12-11 | 18L0409-04 | 16.0 ppb |
| 2018-12-11 | 18L0410-01 | 17.0 ppb |
| 2018-12-11 | 18L0410-02 | 14.0 ppb |
| 2018-12-11 | 18L0410-03 | 16.0 ppb |
| 2018-12-11 | 18L0410-04 | 19.0 ppb |
| 2018-12-11 | 18L0411-01 | 16.0 ppb |
| 2018-12-11 | 18L0411-02 | 18.0 ppb |
| 2018-12-11 | 18L0411-03 | 21.0 ppb |
| 2018-12-11 | 18L0411-04 | 19.0 ppb |
| 2019-03-12 | 19C0522-01 | 15.0 ppb |
| 2019-03-12 | 19C0522-02 | 15.0 ppb |
| 2019-03-12 | 19C0522-03 | 14.0 ppb |
| 2019-03-12 | 19C0522-04 | 16.0 ppb |
| 2019-03-12 | 19C0523-01 | 14.0 ppb |
| 2019-03-12 | 19C0523-02 | 15.0 ppb |
| 2019-03-12 | 19C0523-03 | 18.0 ppb |
| 2019-03-12 | 19C0523-04 | 17.0 ppb |
| 2019-03-12 | 19C0524-01 | 17.0 ppb |
| 2019-03-12 | 19C0524-02 | 16.0 ppb |
| 2019-03-12 | 19C0524-03 | 17.0 ppb |
| 2019-03-12 | 19C0524-04 | 15.0 ppb |
| 2019-06-18 | 19F1278-01 | 15.0 ppb |
| 2019-06-18 | 19F1278-02 | 13.0 ppb |
| 2019-06-18 | 19F1278-03 | 12.0 ppb |
| 2019-06-18 | 19F1278-04 | 17.0 ppb |
| 2019-06-18 | 19F1279-01 | 15.0 ppb |
| 2019-06-18 | 19F1279-02 | 14.0 ppb |
| 2019-06-18 | 19F1279-03 | 16.0 ppb |
| 2019-06-18 | 19F1279-04 | 13.0 ppb |
| 2019-06-18 | 19F1280-01 | 15.0 ppb |
| 2019-06-18 | 19F1280-02 | 13.0 ppb |
| 2019-06-18 | 19F1280-03 | 16.0 ppb |
| 2019-06-18 | 19F1280-04 | 16.0 ppb |
| 2019-09-11 | 19I0550-01 | 23.0 ppb |
| 2019-09-11 | 19I0550-02 | 21.0 ppb |
| 2019-09-11 | 19I0550-03 | 22.0 ppb |
| 2019-09-11 | 19I0550-04 | 18.0 ppb |
| 2019-09-11 | 19I0552-01 | 22.0 ppb |
| 2019-09-11 | 19I0552-02 | 19.0 ppb |
| 2019-09-11 | 19I0552-03 | 25.0 ppb |
| 2019-09-11 | 19I0552-04 | 23.0 ppb |
| 2019-09-11 | 19I0553-01 | 20.0 ppb |
| 2019-09-11 | 19I0553-02 | 18.0 ppb |
| 2019-09-11 | 19I0553-03 | 16.0 ppb |
| 2019-09-11 | 19I0553-04 | 24.0 ppb |
| 2019-12-11 | 19L0801-01 | 21.0 ppb |
| 2019-12-11 | 19L0801-02 | 17.0 ppb |
| 2019-12-11 | 19L0801-03 | 17.0 ppb |
| 2019-12-11 | 19L0801-04 | 17.0 ppb |
| 2019-12-11 | 19L0802-01 | 16.0 ppb |
| 2019-12-11 | 19L0802-02 | 16.0 ppb |
| 2019-12-11 | 19L0802-03 | 21.0 ppb |
| 2019-12-11 | 19L0802-04 | 19.0 ppb |
| 2019-12-11 | 19L0803-01 | 16.0 ppb |
| 2019-12-11 | 19L0803-02 | 16.0 ppb |
| 2019-12-11 | 19L0803-03 | 15.0 ppb |
| 2019-12-11 | 19L0803-04 | 17.0 ppb |
| 2020-03-03 | 20C0150-01 | 17.0 ppb |
| 2020-03-03 | 20C0150-02 | 14.0 ppb |
| 2020-03-03 | 20C0150-03 | 14.0 ppb |
| 2020-03-03 | 20C0150-04 | 17.0 ppb |
| 2020-03-03 | 20C0151-01 | 17.0 ppb |
| 2020-03-03 | 20C0151-02 | 16.0 ppb |
| 2020-03-03 | 20C0151-03 | 16.0 ppb |
| 2020-03-03 | 20C0151-04 | 17.0 ppb |
| 2020-03-03 | 20C0153-01 | 17.0 ppb |
| 2020-03-03 | 20C0153-02 | 17.0 ppb |
| 2020-03-03 | 20C0153-03 | 19.0 ppb |
| 2020-03-03 | 20C0153-04 | 17.0 ppb |
| 2020-06-08 | 20F0636-01 | 12.0 ppb |
| 2020-06-08 | 20F0636-02 | 11.0 ppb |
| 2020-06-08 | 20F0636-03 | 15.0 ppb |
| 2020-06-08 | 20F0636-04 | 14.0 ppb |
| 2020-06-08 | 20F0637-01 | 13.0 ppb |
| 2020-06-08 | 20F0637-02 | 13.0 ppb |
| 2020-06-08 | 20F0637-03 | 13.0 ppb |
| 2020-06-08 | 20F0637-04 | 15.0 ppb |
| 2020-06-08 | 20F0638-01 | 13.0 ppb |
| 2020-06-08 | 20F0638-02 | 14.0 ppb |
| 2020-06-08 | 20F0638-03 | 16.0 ppb |
| 2020-06-08 | 20F0638-04 | 14.0 ppb |
| 2020-09-02 | 20I0207-01 | 17.0 ppb |
| 2020-09-02 | 20I0207-02 | 17.0 ppb |
| 2020-09-02 | 20I0207-03 | 15.0 ppb |
| 2020-09-02 | 20I0207-04 | 18.0 ppb |
| 2020-09-02 | 20I0211-01 | 18.0 ppb |
| 2020-09-02 | 20I0211-02 | 16.0 ppb |
| 2020-09-02 | 20I0211-03 | 20.0 ppb |
| 2020-09-02 | 20I0211-04 | 19.0 ppb |
| 2020-09-02 | 20I0212-01 | 20.0 ppb |
| 2020-09-02 | 20I0212-02 | 19.0 ppb |
| 2020-09-02 | 20I0212-03 | 18.0 ppb |
| 2020-09-02 | 20I0212-04 | 16.0 ppb |
| 2020-11-23 | 20K1044-01 | 12.0 ppb |
| 2020-11-23 | 20K1044-02 | 12.0 ppb |
| 2020-11-23 | 20K1044-03 | 10.00 ppb |
| 2020-11-23 | 20K1044-04 | 15.0 ppb |
| 2020-11-23 | 20K1045-01 | 18.0 ppb |
| 2020-11-23 | 20K1045-02 | 14.0 ppb |
| 2020-11-23 | 20K1045-03 | 14.0 ppb |
| 2020-11-23 | 20K1045-04 | 12.0 ppb |
| 2020-11-23 | 20K1046-01 | 12.0 ppb |
| 2020-11-23 | 20K1046-02 | 12.0 ppb |
| 2020-11-23 | 20K1046-03 | 18.0 ppb |
| 2020-11-23 | 20K1046-04 | 16.0 ppb |
| 2021-03-03 | 21C0171-01 | 12.0 ppb |
| 2021-03-03 | 21C0171-02 | 11.0 ppb |
| 2021-03-03 | 21C0171-03 | 13.0 ppb |
| 2021-03-03 | 21C0171-04 | 17.0 ppb |
| 2021-03-03 | 21C0172-01 | 15.0 ppb |
| 2021-03-03 | 21C0172-02 | 13.0 ppb |
| 2021-03-03 | 21C0172-03 | 13.0 ppb |
| 2021-03-03 | 21C0172-04 | 12.0 ppb |
| 2021-03-03 | 21C0173-01 | 12.0 ppb |
| 2021-03-03 | 21C0173-02 | 11.0 ppb |
| 2021-03-03 | 21C0173-03 | 11.0 ppb |
| 2021-03-03 | 21C0173-04 | 11.0 ppb |
| 2021-06-09 | 21F0558-01 | 10.00 ppb |
| 2021-06-09 | 21F0558-02 | 11.0 ppb |
| 2021-06-09 | 21F0558-03 | 12.0 ppb |
| 2021-06-09 | 21F0558-04 | 10.00 ppb |
| 2021-06-09 | 21F0559-01 | 11.0 ppb |
| 2021-06-09 | 21F0559-02 | 12.0 ppb |
| 2021-06-09 | 21F0559-03 | 11.0 ppb |
| 2021-06-09 | 21F0559-04 | 15.0 ppb |
| 2021-06-09 | 21F0560-01 | 13.0 ppb |
| 2021-06-09 | 21F0560-02 | 11.0 ppb |
| 2021-06-09 | 21F0560-03 | 13.0 ppb |
| 2021-06-09 | 21F0560-04 | 13.0 ppb |
| 2021-09-01 | 21I0094-01 | 15.0 ppb |
| 2021-09-01 | 21I0094-02 | 15.0 ppb |
| 2021-09-01 | 21I0094-03 | 17.0 ppb |
| 2021-09-01 | 21I0094-04 | 13.0 ppb |
| 2021-09-01 | 21I0095-01 | 13.0 ppb |
| 2021-09-01 | 21I0095-02 | 13.0 ppb |
| 2021-09-01 | 21I0095-03 | 13.0 ppb |
| 2021-09-01 | 21I0095-04 | 16.0 ppb |
| 2021-09-01 | 21I0096-01 | 17.0 ppb |
| 2021-09-01 | 21I0096-02 | 14.0 ppb |
| 2021-09-01 | 21I0096-03 | 17.0 ppb |
| 2021-09-01 | 21I0096-04 | 15.0 ppb |
| 2021-12-14 | 21L0577-01 | 12.0 ppb |
| 2021-12-14 | 21L0577-02 | 12.0 ppb |
| 2021-12-14 | 21L0577-03 | 11.0 ppb |
| 2021-12-14 | 21L0577-04 | 24.0 ppb |
| 2021-12-14 | 21L0578-01 | 13.0 ppb |
| 2021-12-14 | 21L0578-02 | 13.0 ppb |
| 2021-12-14 | 21L0578-03 | 12.0 ppb |
| 2021-12-14 | 21L0578-04 | 11.0 ppb |
| 2021-12-14 | 21L0579-01 | 13.0 ppb |
| 2021-12-14 | 21L0579-02 | 12.0 ppb |
| 2021-12-14 | 21L0579-03 | 13.0 ppb |
| 2021-12-14 | 21L0579-04 | 13.0 ppb |
| 2022-03-01 | 22C0061-01 | 11.0 ppb |
| 2022-03-01 | 22C0061-02 | 11.0 ppb |
| 2022-03-01 | 22C0061-03 | 11.0 ppb |
| 2022-03-01 | 22C0061-04 | 12.0 ppb |
| 2022-03-01 | 22C0062-01 | 13.0 ppb |
| 2022-03-01 | 22C0062-02 | 12.0 ppb |
| 2022-03-01 | 22C0062-03 | 12.0 ppb |
| 2022-03-01 | 22C0062-04 | 13.0 ppb |
| 2022-03-01 | 22C0063-01 | 12.0 ppb |
| 2022-03-01 | 22C0063-02 | 13.0 ppb |
| 2022-03-01 | 22C0063-03 | 14.0 ppb |
| 2022-03-01 | 22C0063-04 | 13.0 ppb |
| 2022-06-07 | 22F0402-01 | 13.0 ppb |
| 2022-06-07 | 22F0402-02 | 12.0 ppb |
| 2022-06-07 | 22F0402-03 | 14.0 ppb |
| 2022-06-07 | 22F0402-04 | 14.0 ppb |
| 2022-06-07 | 22F0403-01 | 13.0 ppb |
| 2022-06-07 | 22F0403-02 | 11.0 ppb |
| 2022-06-07 | 22F0403-03 | 13.0 ppb |
| 2022-06-07 | 22F0403-04 | 14.0 ppb |
| 2022-06-07 | 22F0404-01 | 14.0 ppb |
| 2022-06-07 | 22F0404-02 | 13.0 ppb |
| 2022-06-07 | 22F0404-03 | 14.0 ppb |
| 2022-06-07 | 22F0404-04 | 13.0 ppb |
| 2022-09-14 | 22I0924-01 | 19.0 ppb |
| 2022-09-14 | 22I0924-02 | 18.0 ppb |
| 2022-09-14 | 22I0924-03 | 18.0 ppb |
| 2022-09-14 | 22I0924-04 | 20.0 ppb |
| 2022-09-14 | 22I0926-01 | 19.0 ppb |
| 2022-09-14 | 22I0926-02 | 20.0 ppb |
| 2022-09-14 | 22I0926-03 | 23.0 ppb |
| 2022-09-14 | 22I0926-04 | 22.0 ppb |
| 2022-09-14 | 22I0928-01 | 23.0 ppb |
| 2022-09-14 | 22I0928-02 | 19.0 ppb |
| 2022-09-14 | 22I0928-03 | 21.0 ppb |
| 2022-09-14 | 22I0928-04 | 21.0 ppb |
| 2022-12-05 | 22L0140-01 | 18.0 ppb |
| 2022-12-05 | 22L0140-02 | 14.0 ppb |
| 2022-12-05 | 22L0140-03 | 14.0 ppb |
| 2022-12-05 | 22L0140-04 | 15.0 ppb |
| 2022-12-05 | 22L0141-01 | 13.0 ppb |
| 2022-12-05 | 22L0141-02 | 14.0 ppb |
| 2022-12-05 | 22L0141-03 | 18.0 ppb |
| 2022-12-05 | 22L0141-04 | 16.0 ppb |
| 2022-12-05 | 22L0142-01 | 14.0 ppb |
| 2022-12-05 | 22L0142-02 | 12.0 ppb |
| 2022-12-05 | 22L0142-03 | 13.0 ppb |
| 2022-12-05 | 22L0142-04 | 16.0 ppb |
| 2023-03-01 | 23C0140-01 | 13.0 ppb |
| 2023-03-01 | 23C0140-02 | 14.0 ppb |
| 2023-03-01 | 23C0140-03 | 16.0 ppb |
| 2023-03-01 | 23C0140-04 | 14.0 ppb |
| 2023-03-01 | 23C0147-01 | 17.0 ppb |
| 2023-03-01 | 23C0147-02 | 14.0 ppb |
| 2023-03-01 | 23C0147-03 | 14.0 ppb |
| 2023-03-01 | 23C0147-04 | 13.0 ppb |
| 2023-03-01 | 23C0156-01 | 13.0 ppb |
| 2023-03-01 | 23C0156-02 | 13.0 ppb |
| 2023-03-01 | 23C0156-03 | 13.0 ppb |
| 2023-03-01 | 23C0156-04 | 14.0 ppb |
| 2023-06-05 | 23F0314-01 | 13.0 ppb |
| 2023-06-05 | 23F0314-02 | 12.0 ppb |
| 2023-06-05 | 23F0314-03 | 12.0 ppb |
| 2023-06-05 | 23F0314-04 | 13.0 ppb |
| 2023-06-05 | 23F0315-01 | 16.0 ppb |
| 2023-06-05 | 23F0315-02 | 13.0 ppb |
| 2023-06-05 | 23F0315-03 | 12.0 ppb |
| 2023-06-05 | 23F0315-04 | 15.0 ppb |
| 2023-06-05 | 23F0316-01 | 15.0 ppb |
| 2023-06-05 | 23F0316-02 | 12.0 ppb |
| 2023-06-05 | 23F0316-03 | 16.0 ppb |
| 2023-06-05 | 23F0316-04 | 15.0 ppb |
| 2023-09-13 | 23I0696-01 | 14.0 ppb |
| 2023-09-13 | 23I0696-02 | 16.0 ppb |
| 2023-09-13 | 23I0696-04 | 16.0 ppb |
| 2023-09-13 | 23I0697-01 | 13.0 ppb |
| 2023-09-13 | 23I0697-02 | 12.0 ppb |
| 2023-09-13 | 23I0697-03 | 16.0 ppb |
| 2023-09-13 | 23I0697-04 | 16.0 ppb |
| 2023-09-13 | 23I0699-01 | 13.0 ppb |
| 2023-09-13 | 23I0699-02 | 13.0 ppb |
| 2023-09-13 | 23I0699-03 | 15.0 ppb |
| 2023-09-13 | 23I0699-04 | 14.0 ppb |
| 2023-09-14 | 23I0696-03 | 14.0 ppb |
| 2023-12-11 | 23L0421-01 | 9.10 ppb |
| 2023-12-11 | 23L0421-02 | 9.80 ppb |
| 2023-12-11 | 23L0421-03 | 9.60 ppb |
| 2023-12-11 | 23L0421-04 | 8.50 ppb |
| 2023-12-11 | 23L0427-01 | 9.80 ppb |
| 2023-12-11 | 23L0427-02 | 9.40 ppb |
| 2023-12-11 | 23L0427-03 | 13.0 ppb |
| 2023-12-11 | 23L0427-04 | 11.0 ppb |
| 2023-12-11 | 23L0429-01 | 12.0 ppb |
| 2023-12-11 | 23L0429-02 | 9.60 ppb |
| 2023-12-11 | 23L0429-03 | 10.00 ppb |
| 2023-12-11 | 23L0429-04 | 10.00 ppb |