Dichloroacetic acid
City of Denham Springs Water System
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 | 3.78 ppb | 32 | 32 | 0.550 ppb - 8.40 ppb |
| 2019 | 2.14 ppb | 32 | 28 | ND - 7.90 ppb |
| 2020 | 2.78 ppb | 16 | 16 | 0.710 ppb - 6.70 ppb |
| 2021 | 2.21 ppb | 16 | 15 | ND - 6.20 ppb |
| 2022 | 2.59 ppb | 16 | 11 | ND - 6.20 ppb |
| 2023 | 2.89 ppb | 16 | 13 | ND - 5.60 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 |
|---|---|---|
| 2018-02-01 | 35371846001 | 4.30 ppb |
| 2018-02-01 | 35371846002 | 5.70 ppb |
| 2018-02-01 | 35371846003 | 0.750 ppb |
| 2018-02-01 | 35371846004 | 5.40 ppb |
| 2018-02-01 | 35371846001 | 4.30 ppb |
| 2018-02-01 | 35371846002 | 5.70 ppb |
| 2018-02-01 | 35371846003 | 0.750 ppb |
| 2018-02-01 | 35371846004 | 5.40 ppb |
| 2018-05-04 | 35390308001 | 4.60 ppb |
| 2018-05-04 | 35390308002 | 4.70 ppb |
| 2018-05-04 | 35390308003 | 5.80 ppb |
| 2018-05-04 | 35390308004 | 0.830 ppb |
| 2018-05-04 | 35390308001 | 4.60 ppb |
| 2018-05-04 | 35390308002 | 4.70 ppb |
| 2018-05-04 | 35390308003 | 5.80 ppb |
| 2018-05-04 | 35390308004 | 0.830 ppb |
| 2018-08-07 | 35409812001 | 4.90 ppb |
| 2018-08-07 | 35409812002 | 8.40 ppb |
| 2018-08-07 | 35409812003 | 8.10 ppb |
| 2018-08-07 | 35409812004 | 0.910 ppb |
| 2018-08-07 | 35409812001 | 4.90 ppb |
| 2018-08-07 | 35409812002 | 8.40 ppb |
| 2018-08-07 | 35409812003 | 8.10 ppb |
| 2018-08-07 | 35409812004 | 0.910 ppb |
| 2018-11-02 | 35428194001 | 1.50 ppb |
| 2018-11-02 | 35428194002 | 2.90 ppb |
| 2018-11-02 | 35428194003 | 0.550 ppb |
| 2018-11-02 | 35428194004 | 1.10 ppb |
| 2018-11-02 | 35428194001 | 1.50 ppb |
| 2018-11-02 | 35428194002 | 2.90 ppb |
| 2018-11-02 | 35428194003 | 0.550 ppb |
| 2018-11-02 | 35428194004 | 1.10 ppb |
| 2019-02-15 | 35448841001 | 1.50 ppb |
| 2019-02-15 | 35448841002 | 2.30 ppb |
| 2019-02-15 | 35448841003 | 4.60 ppb |
| 2019-02-15 | 35448841004 | 1.20 ppb |
| 2019-02-15 | 35448841001 | 1.50 ppb |
| 2019-02-15 | 35448841002 | 2.30 ppb |
| 2019-02-15 | 35448841003 | 4.60 ppb |
| 2019-02-15 | 35448841004 | 1.20 ppb |
| 2019-05-03 | 35466097001 | ND |
| 2019-05-03 | 35466097002 | 1.30 ppb |
| 2019-05-03 | 35466097003 | 7.90 ppb |
| 2019-05-03 | 35466097004 | ND |
| 2019-05-03 | 35466097001 | ND |
| 2019-05-03 | 35466097002 | 1.30 ppb |
| 2019-05-03 | 35466097003 | 7.90 ppb |
| 2019-05-03 | 35466097004 | ND |
| 2019-08-01 | 35486871001 | 1.40 ppb |
| 2019-08-01 | 35486871002 | 1.80 ppb |
| 2019-08-01 | 35486871003 | 2.10 ppb |
| 2019-08-01 | 35486871004 | 0.930 ppb |
| 2019-08-01 | 35486871001 | 1.40 ppb |
| 2019-08-01 | 35486871002 | 1.80 ppb |
| 2019-08-01 | 35486871003 | 2.10 ppb |
| 2019-08-01 | 35486871004 | 0.930 ppb |
| 2019-11-01 | 35509128001 | 1.20 ppb |
| 2019-11-01 | 35509128002 | 3.50 ppb |
| 2019-11-01 | 35509128003 | 3.90 ppb |
| 2019-11-01 | 35509128004 | 0.660 ppb |
| 2019-11-01 | 35509128001 | 1.20 ppb |
| 2019-11-01 | 35509128002 | 3.50 ppb |
| 2019-11-01 | 35509128003 | 3.90 ppb |
| 2019-11-01 | 35509128004 | 0.660 ppb |
| 2020-02-06 | 35529494001 | 1.70 ppb |
| 2020-02-06 | 35529494002 | 1.000 ppb |
| 2020-02-06 | 35529494003 | 3.00 ppb |
| 2020-02-06 | 35529494004 | 0.710 ppb |
| 2020-05-01 | 35547151001 | 1.10 ppb |
| 2020-05-01 | 35547151002 | 2.60 ppb |
| 2020-05-01 | 35547151003 | 5.30 ppb |
| 2020-05-01 | 35547151004 | 0.860 ppb |
| 2020-08-06 | 35569085001 | 6.70 ppb |
| 2020-08-06 | 35569085002 | 2.10 ppb |
| 2020-08-06 | 35569085003 | 6.30 ppb |
| 2020-08-24 | 35573325001 | 0.840 ppb |
| 2020-11-06 | 35590481001 | 5.10 ppb |
| 2020-11-06 | 35590481002 | 2.20 ppb |
| 2020-11-06 | 35590481003 | 4.30 ppb |
| 2020-11-06 | 35590481004 | 0.740 ppb |
| 2021-02-05 | 35609996001 | 0.810 ppb |
| 2021-02-05 | 35609996002 | 1.70 ppb |
| 2021-02-05 | 35609996003 | 2.10 ppb |
| 2021-02-05 | 35609996004 | ND |
| 2021-05-06 | 35631658001 | 1.10 ppb |
| 2021-05-06 | 35631658002 | 1.30 ppb |
| 2021-05-06 | 35631658003 | 3.10 ppb |
| 2021-05-06 | 35631658004 | 0.640 ppb |
| 2021-08-12 | 35655918001 | 2.30 ppb |
| 2021-08-12 | 35655918002 | 4.20 ppb |
| 2021-08-12 | 35655918003 | 0.640 ppb |
| 2021-08-12 | 35655918004 | 6.20 ppb |
| 2021-11-05 | 35676298001 | 5.00 ppb |
| 2021-11-05 | 35676298002 | 2.40 ppb |
| 2021-11-05 | 35676298003 | 3.30 ppb |
| 2021-11-05 | 35676298004 | 0.530 ppb |
| 2022-02-10 | 35696562001 | 5.70 ppb |
| 2022-02-10 | 35696562002 | 3.70 ppb |
| 2022-02-10 | 35696562003 | 3.70 ppb |
| 2022-02-10 | 35696562004 | 0.950 ppb |
| 2022-05-06 | 35715937001 | 5.70 ppb |
| 2022-05-06 | 35715937002 | 2.20 ppb |
| 2022-05-06 | 35715937003 | 3.80 ppb |
| 2022-05-06 | 35715937004 | 0.930 ppb |
| 2022-08-17 | 35741192001 | ND |
| 2022-08-17 | 35741192002 | ND |
| 2022-08-17 | 35741192003 | ND |
| 2022-08-17 | 35741192004 | ND |
| 2022-11-04 | 35758150001 | 6.00 ppb |
| 2022-11-04 | 35758150002 | 2.50 ppb |
| 2022-11-04 | 35758150003 | 6.20 ppb |
| 2022-11-04 | 35758150004 | ND |
| 2023-02-03 | 35776990001 | 1.20 ppb |
| 2023-02-03 | 35776990002 | 2.90 ppb |
| 2023-02-03 | 35776990003 | 4.10 ppb |
| 2023-02-03 | 35776990004 | ND |
| 2023-05-05 | 35797781001 | 5.60 ppb |
| 2023-05-05 | 35797781002 | 2.30 ppb |
| 2023-05-05 | 35797781003 | 4.20 ppb |
| 2023-05-05 | 35797781004 | 0.470 ppb |
| 2023-08-30 | 35824650001 | 3.90 ppb |
| 2023-08-30 | 35824650002 | 4.20 ppb |
| 2023-08-30 | 35824650003 | ND |
| 2023-08-30 | 35824650004 | 4.90 ppb |
| 2023-11-03 | 35839248001 | 4.50 ppb |
| 2023-11-03 | 35839248002 | 2.50 ppb |
| 2023-11-03 | 35839248003 | 5.40 ppb |
| 2023-11-03 | 35839248004 | ND |