WASHINGTON CO RWD #7
Oklahoma — Community Water System — PWSID: OK3007415
System Information
| PWSID | OK3007415 |
| System Name | WASHINGTON CO RWD #7 |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | May 21, 2004 |
| Last Reported | Feb 18, 2026 |
Location & Contact
| State | Oklahoma |
| City | DEWEY |
| ZIP Code | 74029 |
| Address | Larry Underhill, Chairman |
| Organization | WASHINGTON CO RWD #7 |
| Phone | 918-440-9638 |
Population & Service
| Population Served | 258 |
| Service Connections | 133 |
Drinking Water Violations (313)
This water system has 313 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 | Sep 30, 2025 | MCL | Yes | No | .08 MG/L | 0.060 mg/L | .06 | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | .08 MG/L | 0.060 mg/L | .06 | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | .08 MG/L | 0.060 mg/L | .06 | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | .08 MG/L | 0.060 mg/L | .06 | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | — | Other | No | No | — | — | — | Resolved | Jun 27, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | .072 MG/L | 0.060 mg/L | .06 | Archived | Jun 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | .072 MG/L | 0.060 mg/L | .06 | Archived | Jun 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | .072 MG/L | 0.060 mg/L | .06 | Archived | Jun 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | .072 MG/L | 0.060 mg/L | .06 | Archived | Jun 30, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Archived | Mar 31, 2025 | — | |
| Oct 17, 2024 | — | RPT | No | No | — | — | — | Addressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Addressed | — | — | |
| Oct 17, 2024 | — | RPT | No | No | — | — | — | Addressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Addressed | — | — | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2024 | — | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2024 | — | |
| Jul 1, 2024 | Jul 31, 2024 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2024 | — | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2024 | — | |
| Jul 1, 2024 | Jul 31, 2024 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2024 | — | |
| Jul 1, 2024 | Jul 31, 2024 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2024 | — | |
| Jul 1, 2024 | Jul 31, 2024 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2024 | — | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2024 | — | |
| Mar 31, 2024 | — | MR | No | No | — | 0.080 mg/L | — | Resolved | Aug 30, 2024 | — | |
| Mar 31, 2024 | — | MR | No | No | — | 0.080 mg/L | — | Resolved | Aug 30, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | .105 MG/L | 0.080 mg/L | .08 | Archived | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | .105 MG/L | 0.080 mg/L | .08 | Archived | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | .105 MG/L | 0.080 mg/L | .08 | Archived | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | .105 MG/L | 0.080 mg/L | .08 | Archived | Mar 31, 2024 | — | |
| Dec 30, 2023 | — | MR | No | No | — | 0.080 mg/L | — | Resolved | Aug 30, 2024 | — | |
| Dec 30, 2023 | — | MR | No | No | — | 0.080 mg/L | — | Resolved | Aug 30, 2024 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .103 MG/L | 0.080 mg/L | .08 | Archived | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .103 MG/L | 0.080 mg/L | .08 | Archived | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .103 MG/L | 0.080 mg/L | .08 | Archived | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Jan 1, 2022 | — | MR | No | No | — | TT | — | Resolved | Aug 15, 2022 | — | |
| Jan 1, 2022 | — | MR | No | No | — | TT | — | Resolved | Aug 15, 2022 | — | |
| Jan 1, 2022 | — | MR | No | No | — | TT | — | Resolved | Aug 15, 2022 | — | |
| Jan 1, 2022 | — | MR | No | No | — | TT | — | Resolved | Aug 15, 2022 | — | |
| Dec 30, 2021 | — | MR | No | No | — | 0.080 mg/L | — | Resolved | Apr 15, 2022 | — | |
| Dec 30, 2021 | — | MR | No | No | — | 0.080 mg/L | — | Resolved | Apr 15, 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.