ENID
PWSID: OK2002412 · Enid, OK · Serves 49,347 people
According to EPA Safe Drinking Water Information System (SDWIS), ENID (PWSID OK2002412) in Enid, OK is listed as a CWS water system covering about 49,347 people. The same extract lists 6 health-based violation records spanning 1991-2024. Those 6 health-based rows for ENID cover contaminants such as Coliform (TCR), LEAD AND COPPER RULE REVISIONS; they remain historical EPA registry entries, not a current compliance or drinkability score.
ENID has 6 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. 2 distinct EPA contaminant codes appear in this system's record, including Coliform (TCR), LEAD AND COPPER RULE REVISIONS. Recorded violations span 1991–2024. 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)
- OK2002412
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Enid, OK
- Population Served
- 49,347
- Health Violations
- Yes (6)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Coliform (TCR) | 5 | 5 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
Violation History (6)
| Contaminant | Health | Date |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Coliform (TCR) | Yes | May 1, 1996 |
| Coliform (TCR) | Yes | May 1, 1993 |
| Coliform (TCR) | Yes | Mar 1, 1993 |
| Coliform (TCR) | Yes | Jun 1, 1992 |
| Coliform (TCR) | Yes | May 1, 1991 |
Frequently Asked Questions
What does EPA SDWIS list for ENID?
How many people does ENID serve?
What violations does ENID have?
What contaminants have been found in ENID water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest ENID on cumulative violation count (6) and EPA-reported population served (49,347). Violation-count peers include CHEROKEE WATER SYSTEM, LAME DEER WATER SYSTEM, FOUR BEARS WATER SYSTEM. Population peers include PACE WATER SYSTEM, INC., MYRTLE BEACH CITY OF (SC2610001), GREEN MOUNTAIN WSD.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
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About This Data
ENID (OK2002412) is drawn from EPA SDWIS. Health-based rows in this extract are MCL and Treatment Technique records spanning 1991-2024 covering Coliform (TCR), LEAD AND COPPER RULE REVISIONS. Historical registry entries, 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.