YNP-NORRIS
Wyoming — Transient Non-Community — PWSID: WY5680084
System Information
| PWSID | WY5680084 |
| System Name | YNP-NORRIS |
| System Type | Transient Non-Community |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 2, 1981 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | Wyoming |
| City | YELLOWSTONE NP |
| ZIP Code | 82190 |
| Address | PO BOX 168 |
| Organization | SCHNEIDER, CARIN |
| Phone | 307-344-2424 |
Population & Service
| Population Served | 1,515 |
| Service Connections | 30 |
Drinking Water Violations (4)
This water system has 4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2023 | Oct 31, 2023 | Surface Water Treatment Rule | MR | No | Yes | — | — | — | Resolved | Oct 31, 2023 | Surface Water Treatment Rule |
| Oct 1, 2023 | Oct 31, 2023 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Oct 31, 2023 | Revised Total Coliform Rule |
| Jan 1, 2023 | Dec 31, 2023 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2023 | Nitrate Rule |
| Oct 1, 2021 | Oct 31, 2021 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Oct 31, 2021 | Revised Total Coliform Rule |
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.