DCPA mono- and di-acid degradates
City of Torrance Water Department
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.
10
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 | 8 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-23 | 9588-023-0935 | ND |
| 2018-02-23 | 9588-024-0955 | ND |
| 2018-06-14 | 9588-023-1012 | ND |
| 2018-06-14 | 9588-024-0935 | ND |
| 2018-08-02 | 9588-023-1000 | ND |
| 2018-08-02 | 9588-024-0933 | ND |
| 2018-11-08 | 9588-023-0948 | ND |
| 2018-11-08 | 9588-024-1037 | ND |
| 2019-01-23 | 9588-023-1010 | ND |
| 2019-01-23 | 9588-024-0940 | ND |