DCPA mono- and di-acid degradates
Status: No national drinking water standard exists
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.
2015:
FOUND
3
states detected
26
utilities detected
2.1 million
people served
States reporting DCPA mono- and di-acid degradates in drinking water
| UTILITIES WITH CONTAMINATION | |||
|---|---|---|---|
| State | Utilities | People Served | |
| Virginia | 2 | 1,269,000 | |
| District Of Columbia | 3 | 644,822 | |
| California | 20 | 228,247 | |
| New York | 1 | 2,800 | |
MORE
LESS
Utilities with the highest amounts of DCPA mono- and di-acid degradates, 2015
ALL UTILITIES
LARGE UTILITIES
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Sands Point | Port Washington, NY | 5 of 5 | 4.50 ppb | 2,800 |
| City of Chino | Chino, CA | 4 of 6 | 3.94 ppb | 18,907 |
| Foothill Estates Ws | San Jose, CA | 2 of 2 | 0.670 ppb | 183 |
| Manana Woods | Scotts Valley, CA | 1 of 1 | 0.160 ppb | 350 |
| Central Coast Water Authority* | Buellton, CA | 1 of 1 | 0.130 ppb | 0 |
| Washington Aqueduct Division* | Washington, DC | 1 of 8 | 0.0125 ppb | 0 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report DCPA mono- and di-acid degradates, but it likely has the contaminant in its water supply.
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| City of Chino | Chino, CA | 4 of 6 | 3.94 ppb | 18,907 |