NEWCASTLE, CITY OF
Wyoming — Community Water System — PWSID: WY5600256
System Information
| PWSID | WY5600256 |
| System Name | NEWCASTLE, CITY OF |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wyoming |
| City | NEWCASTLE |
| ZIP Code | 82701 |
| Address | 10 W Warwick St |
| Organization | STUMPFF, GREG |
| Phone | 307-746-3535 |
Population & Service
| Population Served | 3,595 |
| Service Connections | 1,572 |
Drinking Water Violations (240)
This water system has 240 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | — | Other | No | No | — | — | — | Resolved | Oct 2, 2025 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.07 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.5 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | — | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.05 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.0004 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.007 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.007 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.04 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.004 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.007 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.04 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.006 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.5 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | — | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.003 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.00005 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.7 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.004 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.07 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.003 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.05 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.0005 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.007 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.05 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.004 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.004 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | No | — | 0.00005 mg/L | — | Resolved | Dec 31, 2022 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.