DCPA mono- and di-acid degradates
Irvine Ranch Water District
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.
11
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-06-23 | 9588-069-1133 | ND |
| 2016-11-14 | 9588-069-1154 | ND |
| 2017-02-28 | 9588-085-1334 | ND |
| 2017-03-21 | 9588-063-1418 | ND |
| 2017-03-21 | 9588-064-1437 | ND |
| 2017-03-29 | 9588-069-1032 | ND |
| 2018-02-14 | 9588-085-1413 | ND |
| 2018-04-17 | 9588-085-1141 | ND |
| 2019-02-27 | 9588-085-0941 | ND |
| 2019-03-14 | 9588-064-0943 | ND |
| 2019-07-17 | 9588-085-1413 | ND |