Public water system · OK1021502
ActiveDelaware
Community water system in Nowata County, Oklahoma, drawing primarily on surface water.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
456
Service connections
358
Primary source
SW
Surface water
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Archived |
| 2025-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-05-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Archived |
| 2025-04-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Archived |
| 2025-04-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Archived |
| 2025-01-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Archived |
| 2025-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2024-12-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-10-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Archived |
| 2024-09-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-08-30 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Addressed |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Delaware: frequently asked questions
Is Delaware's water safe to drink?
Delaware is an active community water system regulated under the Safe Drinking Water Act, overseen by the OK state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Delaware?
Delaware (PWSID OK1021502) is a local government-owned community water system, regulated by the OK state drinking water program.
How many people does Delaware serve?
Delaware reports serving 456 people through 358 service connections in Nowata County, Oklahoma.
Where does Delaware get its water?
EPA SDWIS lists this system's primary water source as surface water.
Other water systems in Nowata County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Nowata Municipal Authority | Nowata | 3,971 | Community | Surface water |
| Consolidated Rwd #1 Nowata and Rogers Co | Nowata | 1,580 | Community | Purchased surface water |
| Nowata Co Rwd #7 | Nowata | 1,050 | Community | Purchased surface water |
| South Coffeyville | Nowata | 790 | Community | Purchased surface water |
| Elm Bend Rwd Inc. | Nowata | 600 | Community | Purchased surface water |
| Nowata Co Rw & S Dist #1 | Nowata | 500 | Community | Purchased surface water |
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