DCPA mono- and di-acid degradates
California Water Service - Stockton
DCPA degradates are residues of the herbicide dacthal, or DCPA, which is used for urban, household and agricultural applications. Dacthal is a possible human carcinogen whose use was limited by the EPA in 2005 due to concerns about water contamination.
21
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 9 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-06-10 | 9590-130-1136 | ND |
| 2015-09-22 | 9590-130-1114 | ND |
| 2015-10-26 | 9590-060-1145 | ND |
| 2015-11-19 | 9590-059-1056 | ND |
| 2015-12-09 | 9590-018-0553 | ND |
| 2016-02-23 | 9590-061-1110 | ND |
| 2017-04-18 | 9590-133-1146 | ND |
| 2017-07-12 | 9590-133-1420 | ND |
| 2017-07-13 | 9590-029-1354 | ND |
| 2017-09-19 | 9590-130-1040 | ND |
| 2017-10-10 | 9590-058-0950 | ND |
| 2017-10-10 | 9590-133-1110 | ND |
| 2018-01-02 | 9590-054-1115 | ND |
| 2018-01-03 | 9590-133-0950 | ND |
| 2018-04-05 | 9590-133-1320 | ND |
| 2018-04-11 | 9590-050-1225 | ND |
| 2018-06-05 | 9590-130-1405 | ND |
| 2018-07-09 | 9590-056-1305 | ND |
| 2018-07-09 | 9590-133-1100 | ND |
| 2018-09-05 | 9590-130-1443 | ND |
| 2018-10-09 | 9590-133-1325 | ND |