EPA Data 2025 · Risk Level: Moderate
| Contaminant | Arsenic |
| Category | chemical |
| Average Level | 3.871 ppb |
| Maximum Level | 18.81 ppb |
| EPA Limit (MCL) | 10 ppb |
| % Wells Above Limit | 12.0% |
| Affected Wells | 11,400 |
| Testing Cost | $122 |
| Treatment Cost | $2,885 |
| vs National Avg | -0.372 ppb (-8.8%) |
Our team analyzes data from EPA SDWIS & USGS to deliver accurate, up-to-date information. All data is verified and cross-referenced with official sources.