GREAT SAND DUNES OASIS
Colorado - Transient Non-Community - PWSID: CO0202600
System Information
| PWSID | CO0202600 |
| System Name | GREAT SAND DUNES OASIS |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 29, 1983 |
| Last Reported | Feb 23, 2026 |
Location & Contact
| State | Colorado |
| City | MOSCA |
| ZIP Code | 81146 |
| Address | 7800 HWY 150 |
| Organization | AMMERMAN, CHELSEA |
| Phone | 719-378-2222 |
Population & Service
| Population Served | 33 |
| Service Connections | 4 |
Drinking Water Violations (14)
This water system has 14 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 11, 2024 | - | RPT | No | No | - | - | - | Resolved | Aug 30, 2024 | - | |
| Jul 11, 2024 | - | RPT | No | No | - | - | - | Resolved | Aug 30, 2024 | - | |
| Jul 11, 2024 | - | RPT | No | No | - | - | - | Resolved | Aug 30, 2024 | - | |
| Jul 10, 2021 | - | RPT | No | No | - | - | - | Resolved | Aug 10, 2021 | - | |
| Jul 10, 2021 | - | RPT | No | No | - | - | - | Resolved | Aug 10, 2021 | - | |
| Jul 10, 2021 | - | RPT | No | No | - | - | - | Resolved | Aug 10, 2021 | - | |
| Jul 10, 2021 | - | RPT | No | No | - | - | - | Resolved | Aug 10, 2021 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2014 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.