PATTERSON VALLEY WC
Colorado - Community Water System - PWSID: CO0145540
System Information
| PWSID | CO0145540 |
| System Name | PATTERSON VALLEY WC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 20, 1979 |
| Last Reported | Feb 23, 2026 |
Location & Contact
| State | Colorado |
| City | ROCKY FORD |
| ZIP Code | 81067 |
| Address | - |
| Organization | PROCTOR, KELCIE |
| Phone | 719-468-0038 |
Population & Service
| Population Served | 96 |
| Service Connections | 42 |
Drinking Water Violations (528)
This water system has 528 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, 2025 | Dec 31, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 22 PCI/L | 15 pCi/L | 15 | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 22 PCI/L | 15 pCi/L | 15 | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 22 PCI/L | 15 pCi/L | 15 | Archived | Dec 31, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 31 PCI/L | 15 pCi/L | 15 | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 31 PCI/L | 15 pCi/L | 15 | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 31 PCI/L | 15 pCi/L | 15 | Archived | Sep 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 39 PCI/L | 15 pCi/L | 15 | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 39 PCI/L | 15 pCi/L | 15 | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 39 PCI/L | 15 pCi/L | 15 | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 27 PCI/L | 5 pCi/L | 5 | Archived | Jun 30, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 26.68 PCI/L | 5 pCi/L | 5 | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 38.45 PCI/L | 15 pCi/L | 15 | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 38.45 PCI/L | 15 pCi/L | 15 | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 26.68 PCI/L | 5 pCi/L | 5 | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 38.45 PCI/L | 15 pCi/L | 15 | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Mar 27, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Mar 27, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Mar 27, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 26.68 PCI/L | 5 pCi/L | 5 | Archived | Mar 31, 2025 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 37.7 PCI/L | 15 pCi/L | 15 | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2025 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 26.8 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2025 | - | |
| Oct 1, 2024 | - | Other | No | No | - | - | - | Resolved | Dec 30, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 26.8 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 37.7 PCI/L | 15 pCi/L | 15 | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 37.7 PCI/L | 15 pCi/L | 15 | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | - | Other | No | No | - | - | - | Resolved | Dec 30, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 26.8 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | - | Other | No | No | - | - | - | Resolved | Dec 30, 2024 | - | |
| Jul 12, 2024 | - | MR | No | Yes | - | - | - | Resolved | Aug 6, 2024 | - | |
| Jul 12, 2024 | - | MR | No | Yes | - | - | - | Resolved | Aug 6, 2024 | - | |
| Jul 12, 2024 | - | MR | No | Yes | - | - | - | Resolved | Aug 6, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 27.2 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 27.2 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 41.6 PCI/L | 15 pCi/L | 15 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 27.2 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 41.6 PCI/L | 15 pCi/L | 15 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 41.6 PCI/L | 15 pCi/L | 15 | Archived | Sep 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 45.5 PCI/L | 15 pCi/L | 15 | Archived | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 27.6 PCI/L | 5 pCi/L | 5 | Archived | Jun 30, 2024 | - |
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.