DCPA di-acid degradate
Royal City Water
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.
8
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | 0.175 ppb | 4 | 3 | ND - 0.300 ppb |
| 2016 | 0.150 ppb | 2 | 1 | ND - 0.300 ppb |
| 2017 | 0.250 ppb | 2 | 2 | 0.200 ppb - 0.300 ppb |
| 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 |
|---|---|---|
| 2015-06-29 | 84289 | ND |
| 2015-07-08 | 84306 | 0.300 ppb |
| 2015-08-24 | 84506 | 0.200 ppb |
| 2015-10-27 | 84687 | 0.200 ppb |
| 2016-03-08 | ND | |
| 2016-11-16 | 0.300 ppb | |
| 2017-03-13 | 0.300 ppb | |
| 2017-06-05 | 0.200 ppb |