Public water system · MO6200625
ActiveHidden Valley Golf and Ski
At a glance
Hidden Valley Golf and Ski (PWSID MO6200625) is an active transient non-community water system in St. Louis County, Missouri. It reports serving 100 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; none is health-based, and the most recent began in April 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
3
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Hidden Valley Golf and Ski compare with other water systems in St. Louis County?
By EPA's size categories, Hidden Valley Golf and Ski is a very small system (500 people or fewer). St. Louis County has 23 active public water systems. Its population served is well below the county average of 49,800 people per system, and accounts for less than 0.1% of the 1,145,404 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Hidden Valley Golf and Ski is about 31% 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. Missouri has 1,103 active transient non-community water systems, 37% of the state's 2,943 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,521 Missouri systems (86%) list groundwater as their primary source.
Who owns and regulates Hidden Valley Golf and Ski?
EPA lists Hidden Valley Golf and Ski as privately owned. The MO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 15 of the 23 active systems in St. Louis County (65%) are also privately owned.
Does Hidden Valley Golf and Ski have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in April 2013. The violations listed here began between December 1994 and April 2013. By type: 8 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2013-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 1999-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 1998-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 1995-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 8 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.
Hidden Valley Golf and Ski: frequently asked questions
Who runs Hidden Valley Golf and Ski?
Hidden Valley Golf and Ski (PWSID MO6200625) is a transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Hidden Valley Golf and Ski serve?
Hidden Valley Golf and Ski reports serving 100 people through 3 service connections in St. Louis County, Missouri.
Where does Hidden Valley Golf and Ski 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 Hidden Valley Golf and Ski have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in April 2013. 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 Hidden Valley Golf and Ski'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. EPA's records list 8 violations for this system; none is health-based, and the most recent began in April 2013. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Hidden Valley Golf and Ski's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Hidden Valley Golf and Ski 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 St. Louis County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mo American St Louis St Charles Counties | St. Louis + 1 more | 1,111,000 | Community | Surface water |
| Kirkwood Pws | St. Louis | 28,000 | Community | Purchased surface water |
| Six Flags St Louis | St. Louis | 3,200 | Non-transient non-community | Groundwater |
| Mo Eastern Correctional Center | St. Louis | 1,100 | Community | Groundwater |
| Rockwoods Reservation | St. Louis | 550 | Transient non-community | Groundwater |
| Babler State Park | St. Louis | 500 | Transient non-community | Groundwater |
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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, “Hidden Valley Golf and Ski, PWSID MO6200625, Missouri”, https://aquacensus.com/water-systems/missouri/hidden-valley-golf-and-ski-mo6200625 (data as of October 1, 2026).