DCPA di-acid degradate
City of Tacoma
DCPA di-acid degradate is a residue 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 |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 6 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-11-13 | 29191 | ND |
2014-11-14 | 29192 | ND |
2015-09-30 | 15916 | ND |
2015-12-01 | 68505 | ND |
2015-12-01 | 68505 | ND |
2015-12-01 | 68505 | ND |
2015-12-01 | 68505 | ND |
2015-12-08 | 68751 | ND |