National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
DCPA mono acid degradate
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
DCPA mono acid degradate is a residue of Dacthal (DCPA),an herbicide used for urban, household and agricultural applications.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 2 |
- |
- |
| Water utilities | 3 |
- |
- |
| People Served | 48,452 |
- |
- |
DCPA mono acid degradate Exposure by State
Water utilities in 2 states have reported detecting DCPA mono acid degradate in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with DCPA mono acid degradate contamination | |
|---|---|---|
| Systems | Population | |
| New York | 2 | 48,400 |
| Nevada | 1 | 52 |
| Total | 3 | 48,452 |
The Most Polluted Communities
3 water utilities reported detecting DCPA mono acid degradate in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average DCPA mono acid degradate level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | WA of Great Neck North Great Neck, NY | 31,400 | 35 of 40 | 5.32 ppb (0 to 19 ppb) |
| 2 | Roslyn Wd Roslyn, NY | 17,000 | 9 of 23 | 0.73 ppb (0 to 4.1 ppb) |
| 3 | Valley View Tp Ely, NV | 52 | 1 of 1 | 0.3 ppb (0.3 ppb) |
Testing Summary for DCPA mono acid degradate
| Are tests routinely required for DCPA mono acid degradate by federal law? | No |
| Water suppliers reporting tests for DCPA mono acid degradate (2004-2008): | 32 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2008): | 0.7 per year |