DCPA mono- and di-acid degradates
California Water Service - South San Francisco
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.
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 | 0.1000 ppb | 1 | 1 | 0.1000 ppb |
2017 | ND | 2 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2016-02-08 | 9590-006-1030 | 0.1000 ppb |
2017-11-28 | 9590-008-1500 | ND |
2017-11-28 | 9590-013-1500 | ND |