DCPA mono- and di-acid degradates
Sonoma County Water Agency
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.
12
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 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 12 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-27 | 1644-007-1110 | ND |
| 2018-08-27 | 1644-008-1130 | ND |
| 2018-08-27 | 1644-050-0930 | ND |
| 2018-08-27 | 1644-050-0945 | ND |
| 2018-09-04 | 1644-002-1230 | ND |
| 2018-09-04 | 1644-003-0950 | ND |
| 2018-09-04 | 1644-006-0830 | ND |
| 2018-09-04 | 1644-015-0900 | ND |
| 2018-09-04 | 1644-017-0935 | ND |
| 2018-09-04 | 1644-020-0915 | ND |
| 2018-09-10 | 1644-019-0910 | ND |
| 2018-09-11 | 1644-001-1115 | ND |