DELAWARE
PWSID: OK1021502 · Delaware, OK · Serves 456 people
According to EPA Safe Drinking Water Information System (SDWIS), DELAWARE (PWSID OK1021502) in Delaware, OK is listed as a CWS water system covering about 456 people. The same extract lists 19 health-based violation records spanning 2018-2025. Those 19 health-based rows for DELAWARE cover contaminants such as CARBON, TOTAL; they remain historical EPA registry entries, not a current compliance or drinkability score.
DELAWARE has 19 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including CARBON, TOTAL. Recorded violations span 2018–2025. Day-to-day primacy enforcement for this system runs through the Oklahoma drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Oklahoma state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- OK1021502
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Delaware, OK
- Population Served
- 456
- Health Violations
- Yes (19)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| CARBON, TOTAL | 19 | 19 |
Violation History (19)
| Contaminant | Health | Date |
|---|---|---|
| CARBON, TOTAL | Yes | Apr 1, 2025 |
| CARBON, TOTAL | Yes | Apr 1, 2025 |
| CARBON, TOTAL | Yes | Apr 1, 2025 |
| CARBON, TOTAL | Yes | Jan 1, 2025 |
| CARBON, TOTAL | Yes | Jan 1, 2025 |
| CARBON, TOTAL | Yes | Oct 1, 2024 |
| CARBON, TOTAL | Yes | Oct 1, 2024 |
| CARBON, TOTAL | Yes | Oct 1, 2024 |
| CARBON, TOTAL | Yes | Jul 1, 2024 |
| CARBON, TOTAL | Yes | Jul 1, 2024 |
| CARBON, TOTAL | Yes | Jul 1, 2024 |
| CARBON, TOTAL | Yes | Jul 1, 2024 |
| CARBON, TOTAL | Yes | Apr 1, 2024 |
| CARBON, TOTAL | Yes | Apr 1, 2024 |
| CARBON, TOTAL | Yes | Apr 1, 2024 |
| CARBON, TOTAL | Yes | Jan 1, 2019 |
| CARBON, TOTAL | Yes | Oct 1, 2018 |
| CARBON, TOTAL | Yes | Jul 1, 2018 |
| CARBON, TOTAL | Yes | Apr 1, 2018 |
Frequently Asked Questions
What does EPA SDWIS list for DELAWARE?
How many people does DELAWARE serve?
What violations does DELAWARE have?
What contaminants have been found in DELAWARE water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest DELAWARE on cumulative violation count (19) and EPA-reported population served (456). Violation-count peers include GAMBELL WATER SYSTEM, MURFREESBORO WATERWORKS, NORTH HOWARD RURAL WATER ASSOCIATION.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
DELAWARE (OK1021502) is drawn from EPA SDWIS. Nearby county systems in this extract include NOWATA MUNICIPAL AUTHORITY; CONSOLIDATED RWD #1 NOWATA AND ROGERS CO; MONTGOMERY CO RWD 2C A; NOWATA CO RWD #7. Health-based rows (19 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.