Public water system · MO5212717
ActiveLonghorn Arena
At a glance
Longhorn Arena (PWSID MO5212717) is an active transient non-community water system in Lawrence County, Missouri. It reports serving 30 people through 14 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in September 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
14
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Longhorn Arena compare with other water systems in Lawrence County?
By EPA's size categories, Longhorn Arena is a very small system (500 people or fewer). Lawrence County has 36 active public water systems. Its population served is well below the county average of 561 people per system, and accounts for 0.1% of the 20,196 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 Longhorn Arena 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 Longhorn Arena?
EPA lists Longhorn Arena 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. 30 of the 36 active systems in Lawrence County (83%) are also privately owned.
Does Longhorn Arena have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in September 2025. The violations listed here began between July 2005 and September 2025. By type: 5 monitoring and reporting, 1 public notice, recordkeeping or other, 1 required treatment not met and 1 monitoring. 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 |
|---|---|---|---|---|
| 2025-09-08 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-07-17 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2025-06-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2025-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2005-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-07-01 | 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.
Longhorn Arena: frequently asked questions
Who runs Longhorn Arena?
Longhorn Arena (PWSID MO5212717) is a transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Longhorn Arena serve?
Longhorn Arena reports serving 30 people through 14 service connections in Lawrence County, Missouri.
Where does Longhorn Arena 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 Longhorn Arena have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in September 2025. 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 Longhorn Arena'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; 1 is health-based, and the most recent began in September 2025. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Longhorn Arena's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Longhorn Arena 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 Lawrence County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Liberty Utilities Aurora Verona | Lawrence | 8,529 | Community | Groundwater |
| Mount Vernon Pws | Lawrence | 4,575 | Community | Groundwater |
| Marionville | Lawrence | 2,092 | Community | Groundwater |
| Pierce City Pws | Lawrence | 1,200 | Community | Groundwater |
| Miller Pws | Lawrence | 699 | Community | Groundwater |
| Baumers Food Mart | Lawrence | 350 | 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, “Longhorn Arena, PWSID MO5212717, Missouri”, https://aquacensus.com/water-systems/missouri/longhorn-arena-mo5212717 (data as of October 1, 2026).