MADILL, OK · Marshall County
MARSHALL CO WATER CORP Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of January 1, 1990. 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 Marshall 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)
- OK1010818
- System type
- Community Water System
- Population served
- 6,325
- Service connections
- 2,350
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
MARSHALL CO WATER CORP is one of 106 community water systems in Oklahoma in the 3,301 to 10,000 people size category, formerly serving 6,325 people from surface water.
EPA's federal records list this system as inactive in 1990; the record below is historical.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
Not on record
580-795-3070
MADILL, OK 73446