Public water system · MO6241111
ActiveJellystone Park Cmpgrd
At a glance
Jellystone Park Cmpgrd (PWSID MO6241111) is an active transient non-community water system in St. Louis County, Missouri. It reports serving 25 people through 40 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, none is health-based, and the most recent began in September 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
40
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Jellystone Park Cmpgrd compare with other water systems in St. Louis County?
By EPA's size categories, Jellystone Park Cmpgrd 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 Jellystone Park Cmpgrd 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 Jellystone Park Cmpgrd?
EPA lists Jellystone Park Cmpgrd 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 Jellystone Park Cmpgrd have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 2023. The violations listed here began between August 2014 and September 2023. By type: 6 public notice, recordkeeping or other, 4 monitoring and 2 monitoring and reporting. The contaminant or rule involved most often is Public Notice (6 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 |
|---|---|---|---|---|
| 2023-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-06-28 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-09-27 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-09-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-10-31 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2015-10-07 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-10-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2014-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Jellystone Park Cmpgrd: frequently asked questions
Who runs Jellystone Park Cmpgrd?
Jellystone Park Cmpgrd (PWSID MO6241111) is a transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Jellystone Park Cmpgrd serve?
Jellystone Park Cmpgrd reports serving 25 people through 40 service connections in St. Louis County, Missouri.
Where does Jellystone Park Cmpgrd 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 Jellystone Park Cmpgrd have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 2023. 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 Jellystone Park Cmpgrd'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, none is health-based, and the most recent began in September 2023. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Jellystone Park Cmpgrd's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Jellystone Park Cmpgrd 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, “Jellystone Park Cmpgrd, PWSID MO6241111, Missouri”, https://aquacensus.com/water-systems/missouri/jellystone-park-cmpgrd-mo6241111 (data as of October 1, 2026).