DCPA mono- and di-acid degradates
California American Water Company - Parkway
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.
16
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 | 0.00813 ppb | 16 | 1 | ND - 0.130 ppb |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-08 | 9590-002-1100 | 0.130 ppb |
| 2018-08-09 | 9590-006-1140 | ND |
| 2018-08-09 | 9590-016-0930 | ND |
| 2018-08-09 | 9590-017-0835 | ND |
| 2018-08-14 | 9590-008-1050 | ND |
| 2018-08-14 | 9590-011-0900 | ND |
| 2018-08-14 | 9590-013-1145 | ND |
| 2018-08-14 | 9590-015-1020 | ND |
| 2018-08-14 | 9590-021-1005 | ND |
| 2018-08-14 | 9590-022-0910 | ND |
| 2018-08-14 | 9590-023-0830 | ND |
| 2018-08-14 | 9590-025-0740 | ND |
| 2018-08-15 | 9590-018-1210 | ND |
| 2018-08-15 | 9590-024-1250 | ND |
| 2018-08-15 | 9590-026-1255 | ND |
| 2018-10-08 | 9590-016-0935 | ND |