DELAWARE CO RWSG&SWM DISTRICT 11
Oklahoma - Community Water System - PWSID: OK3002157
System Information
| PWSID | OK3002157 |
| System Name | DELAWARE CO RWSG&SWM DISTRICT 11 |
| 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 | Aug 17, 2011 |
| Last Reported | Feb 18, 2026 |
Location & Contact
| State | Oklahoma |
| City | TWIN OAKS |
| ZIP Code | 74318 |
| Address | Bruce Davis, Chairmain |
| Organization | DELAWARE CO RWSG&SWM DISTRICT 11 |
| Phone | 918-868-2277 |
Population & Service
| Population Served | 750 |
| Service Connections | 300 |
Drinking Water Violations (71)
This water system has 71 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 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Oct 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2024 | - | |
| Oct 2, 2022 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Oct 2, 2022 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Oct 2, 2022 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Aug 24, 2022 | - | Other | No | No | - | - | - | Resolved | May 2, 2023 | - | |
| Aug 24, 2022 | - | Other | No | No | - | - | - | Resolved | May 2, 2023 | - | |
| May 1, 2022 | May 31, 2022 | MON | No | Yes | - | - | - | Resolved | May 31, 2022 | - | |
| May 1, 2022 | May 31, 2022 | MON | No | Yes | - | - | - | Resolved | May 31, 2022 | - | |
| May 1, 2022 | May 31, 2022 | MON | No | Yes | - | - | - | Resolved | May 31, 2022 | - | |
| May 1, 2022 | May 31, 2022 | MON | No | Yes | - | - | - | Resolved | May 31, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Dec 1, 2021 | Dec 31, 2021 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2021 | - | |
| Dec 1, 2021 | Dec 31, 2021 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2021 | - | |
| Dec 1, 2021 | Dec 31, 2021 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2021 | - | |
| Dec 1, 2021 | Dec 31, 2021 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 14, 2022 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 14, 2022 | - | |
| Oct 2, 2020 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Oct 2, 2020 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Oct 2, 2020 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Jul 1, 2020 | Jun 30, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Jul 1, 2020 | Jun 30, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Jul 1, 2020 | Jun 30, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Jul 1, 2020 | Jun 30, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Jul 1, 2020 | Jun 30, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Jul 1, 2020 | Jun 30, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Jul 1, 2020 | Jun 30, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Jul 1, 2020 | Jun 30, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Dec 2, 2019 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Dec 2, 2019 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Dec 2, 2019 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Apr 10, 2023 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Apr 10, 2023 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | May 2, 2023 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | May 2, 2023 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | May 2, 2023 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Feb 12, 2023 | - |
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.