ARDMORE, OK · Carter County
SOWC (LAKE MURRAY) Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of May 27, 2008. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Carter County, OK.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.
System facts
- System ID (PWSID)
- OK1011103
- System type
- Community Water System
- Population served
- 1,500
- Service connections
- 410
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
SOWC (LAKE MURRAY) is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, formerly serving 1,500 people from surface water.
EPA's federal records list this system as inactive in 2008; the record below is historical.
As of August 1, 2026, its federal record holds 3 entries between 1993 and 2006, all of which EPA lists as closed. Nothing has been added since 2006.
Of the 3, 2 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 1 Disinfectants and Disinfection Byproducts Rule, the Surface Water Treatment Rules, and the Lead and Copper Rule.
Violation history
Monitoring and Reporting (DBP)
—TTHM
October 1, 2006 – December 31, 2006
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
February 1, 1994 – February 28, 1994
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
June 1, 1993 – October 26, 1995
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2006 – December 31, 2006 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| February 1, 1994 – February 28, 1994 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| June 1, 1993 – October 26, 1995 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 4, 2007State Public Notification received7 linked violations
- August 14, 2007State Compliance achieved7 linked violations
Last known contact on file (system is inactive)
LAKE MURRAY STATE PARK(SOWC)
580-223-8961
ARDMORE, OK 73401-1611