Public water system · MO6122671
ActiveGraham Cave State Park Office
At a glance
Graham Cave State Park Office (PWSID MO6122671) is an active transient non-community water system in Montgomery County, Missouri. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in February 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Graham Cave State Park Office compare with other water systems in Montgomery County?
By EPA's size categories, Graham Cave State Park Office is a very small system (500 people or fewer). Montgomery County has 29 active public water systems. Its population served is well below the county average of 446 people per system, and accounts for 0.2% of the 12,943 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 Graham Cave State Park Office is well 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 Graham Cave State Park Office?
EPA lists Graham Cave State Park Office as owned by a state government. 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. 2 of the 29 active systems in Montgomery County (6.9%) are also owned by a state government.
Does Graham Cave State Park Office have drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in February 2020. The violations listed here began between October 2007 and February 2020. By type: 2 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2020-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2009-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 3 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.
Graham Cave State Park Office: frequently asked questions
Who runs Graham Cave State Park Office?
Graham Cave State Park Office (PWSID MO6122671) is a transient non-community water system owned by a state government. It is regulated by the MO state drinking water program.
How many people does Graham Cave State Park Office serve?
Graham Cave State Park Office reports serving 25 people through 1 service connection in Montgomery County, Missouri.
Where does Graham Cave State Park Office 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 Graham Cave State Park Office have any drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in February 2020. 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 Graham Cave State Park Office'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 3 violations for this system; 2 are health-based, and the most recent began in February 2020. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Graham Cave State Park Office's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Graham Cave State Park Office 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 Montgomery County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Montgomery Co Pwsd 1 | Montgomery + 1 more | 3,850 | Community | Groundwater |
| Montgomery City Pws | Montgomery | 2,811 | Community | Groundwater |
| Wellsville Pws | Montgomery | 1,210 | Community | Purchased surface water |
| New Florence Pws | Montgomery | 769 | Community | Groundwater |
| Jonesburg Pws | Montgomery | 768 | Community | Groundwater |
| Bellflower Pws | Montgomery | 350 | 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, “Graham Cave State Park Office, PWSID MO6122671, Missouri”, https://aquacensus.com/water-systems/missouri/graham-cave-state-park-office-mo6122671 (data as of October 1, 2026).