Public water system · OK2006017
ActiveYost Lake Country Club
At a glance
Yost Lake Country Club (PWSID OK2006017) is an active transient non-community water system in Payne County, Oklahoma. It reports serving 113 people through 58 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in May 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
113
Service connections
58
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Yost Lake Country Club compare with other water systems in Payne County?
By EPA's size categories, Yost Lake Country Club is a very small system (500 people or fewer). Payne County has 21 active public water systems. Its population served is well below the county average of 3,550 people per system, and accounts for 0.2% of the 74,559 people reported by systems filed under the county. Across Oklahoma, the 1,254 active systems average 2,907 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Yost Lake Country Club is about 21% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Oklahoma has 306 active transient non-community water systems, 24% of the state's 1,254 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 701 Oklahoma systems (56%) list groundwater as their primary source.
Who owns and regulates Yost Lake Country Club?
EPA lists Yost Lake Country Club as privately owned. The OK state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 10 of the 21 active systems in Payne County (48%) are also privately owned.
Does Yost Lake Country Club have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in May 2024. The violations listed here began between October 1999 and May 2024. By type: 7 monitoring and reporting, 3 contaminant level above the legal limit, 1 required treatment not met and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-05-02 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2009-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1999-10-19 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
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.
Yost Lake Country Club: frequently asked questions
Who runs Yost Lake Country Club?
Yost Lake Country Club (PWSID OK2006017) is a transient non-community water system privately owned. It is regulated by the OK state drinking water program.
How many people does Yost Lake Country Club serve?
Yost Lake Country Club reports serving 113 people through 58 service connections in Payne County, Oklahoma.
Where does Yost Lake Country Club get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Yost Lake Country Club have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in May 2024. 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.
Is Yost Lake Country Club's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in May 2024. For current results, consult EPA ECHO, or the OK state drinking water program.
Where can I find Yost Lake Country Club's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Yost Lake Country Club is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Payne County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Stillwater Utilities Authority | Payne | 53,000 | Community | Surface water |
| Cushing | Payne | 8,371 | Community | Groundwater |
| Payne Co Rw Corp #3 | Payne | 3,000 | Community | Purchased surface water |
| Perkins | Payne | 2,572 | Community | Groundwater |
| 51 East Water | Payne | 2,500 | Community | Purchased surface water |
| Payne Co Rwd #3 | Payne | 1,400 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Yost Lake Country Club, PWSID OK2006017, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/yost-lake-country-club-ok2006017 (data as of October 1, 2026).