DELAWARE
Oklahoma - Community Water System - PWSID: OK1021502
System Information
| PWSID | OK1021502 |
| System Name | DELAWARE |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 11, 1980 |
| Last Reported | Feb 18, 2026 |
Location & Contact
| State | Oklahoma |
| City | DELAWARE |
| ZIP Code | 74027 |
| Address | Shannon Duncan, Chairman |
| Organization | DELAWARE |
| Phone | 918-467-3218 |
Population & Service
| Population Served | 456 |
| Service Connections | 358 |
Drinking Water Violations (1,094)
This water system has 1,094 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 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jul 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| May 1, 2025 | May 31, 2025 | MR | No | Yes | - | - | - | Archived | May 31, 2025 | - | |
| May 1, 2025 | May 31, 2025 | MR | No | Yes | - | - | - | Archived | May 31, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | TT | Yes | No | .42 RATIO | TT | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | TT | Yes | No | .42 RATIO | TT | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | TT | Yes | No | .42 RATIO | TT | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | - | - | Archived | Apr 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | TT | Yes | No | .42 RATIO | TT | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | - | - | Archived | Apr 30, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2025 | Mar 31, 2025 | TT | Yes | No | - | TT | - | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | TT | Yes | No | - | TT | - | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2025 | Mar 31, 2025 | TT | Yes | No | - | TT | - | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | TT | Yes | No | - | TT | - | Archived | Mar 31, 2025 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | TT | Yes | No | .27 RATIO | TT | - | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | TT | Yes | No | .27 RATIO | TT | - | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | TT | Yes | No | .27 RATIO | TT | - | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | TT | Yes | No | .27 RATIO | TT | - | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | TT | Yes | No | .27 RATIO | TT | - | Archived | Dec 31, 2024 | - | |
| Sep 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2024 | - | |
| Sep 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2024 | - | |
| Sep 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2024 | - | |
| Sep 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2024 | - | |
| Aug 30, 2024 | - | Other | No | No | - | - | - | Addressed | - | - | |
| Aug 30, 2024 | - | Other | No | No | - | - | - | Addressed | - | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Jul 21, 2024 | - | Other | No | No | - | - | - | Addressed | - | - | |
| Jul 1, 2024 | Sep 30, 2024 | TT | Yes | No | .26 RATIO | TT | - | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | TT | Yes | No | .26 RATIO | TT | - | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jul 31, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | TT | Yes | No | .26 RATIO | TT | - | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | TT | Yes | No | .26 RATIO | TT | - | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Jul 1, 2024 | - | MR | No | No | - | TT | - | Addressed | - | - |
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.