DCPA di-acid degradate
Summers Circle Water Llc
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.
17
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 | 57.3 ppb | 4 | 4 | 23.7 ppb - 120.0 ppb |
| 2019 | 149.3 ppb | 3 | 3 | 44.8 ppb - 221.0 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 116.2 ppb | 4 | 4 | 32.6 ppb - 177.9 ppb |
| 2022 | 59.5 ppb | 4 | 4 | 22.2 ppb - 148.5 ppb |
| 2023 | 65.7 ppb | 2 | 2 | 22.5 ppb - 108.9 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-05 | 120.0 ppb | |
| 2018-06-13 | 23.7 ppb | |
| 2018-08-07 | 27.2 ppb | |
| 2018-10-10 | 58.4 ppb | |
| 2019-03-18 | 182.0 ppb | |
| 2019-06-25 | 44.8 ppb | |
| 2019-11-20 | 221.0 ppb | |
| 2021-03-15 | 4090867 | 177.9 ppb |
| 2021-06-14 | 4129199 | 81.0 ppb |
| 2021-08-17 | 4171861 | 32.6 ppb |
| 2021-10-12 | 4202697 | 173.4 ppb |
| 2022-03-10 | 4261536 | 148.5 ppb |
| 2022-06-20 | 4308480 | 29.6 ppb |
| 2022-08-02 | 4330277 | 37.6 ppb |
| 2022-10-03 | 4350852 | 22.2 ppb |
| 2023-03-22 | 4431745 | 108.9 ppb |
| 2023-06-08 | 4466566 | 22.5 ppb |