DCPA mono- and di-acid degradates
Foothill Estates Ws
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.
4
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 |
|---|---|---|---|---|
| 2018 | 0.605 ppb | 2 | 2 | 0.350 ppb - 0.860 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 1.27 ppb | 2 | 2 | 0.840 ppb - 1.70 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-02 | CA2702198_001_001-201808021349 | 0.860 ppb |
| 2018-09-05 | CA2702198_002_002-201809051354 | 0.350 ppb |
| 2021-09-22 | CA2702198_002_002-202109221052 | 0.840 ppb |
| 2021-09-22 | CA2702198_001_001-202109221101 | 1.70 ppb |