Public water system · MO4172863
ActivePotosi R Iii Schools Ballfield Complex
At a glance
Potosi R Iii Schools Ballfield Complex (PWSID MO4172863) is an active transient non-community water system in Washington County, Missouri. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2009.
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 Potosi R Iii Schools Ballfield Complex compare with other water systems in Washington County?
By EPA's size categories, Potosi R Iii Schools Ballfield Complex is a very small system (500 people or fewer). Washington County has 37 active public water systems. Its population served is well below the county average of 243 people per system, and accounts for 0.3% of the 8,999 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 Potosi R Iii Schools Ballfield Complex 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 Potosi R Iii Schools Ballfield Complex?
EPA lists Potosi R Iii Schools Ballfield Complex 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. 26 of the 37 active systems in Washington County (70%) are also privately owned.
Does Potosi R Iii Schools Ballfield Complex have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2009. By type: 1 monitoring and reporting. The contaminant or rule involved is Nitrate-Nitrite. EPA lists 1 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 |
|---|---|---|---|---|
| 2009-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
The one violation in EPA's records.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.
Potosi R Iii Schools Ballfield Complex: frequently asked questions
Who runs Potosi R Iii Schools Ballfield Complex?
Potosi R Iii Schools Ballfield Complex (PWSID MO4172863) is a transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Potosi R Iii Schools Ballfield Complex serve?
Potosi R Iii Schools Ballfield Complex reports serving 25 people through 1 service connection in Washington County, Missouri.
Where does Potosi R Iii Schools Ballfield Complex 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 Potosi R Iii Schools Ballfield Complex have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2009. 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 Potosi R Iii Schools Ballfield Complex'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 one violation for this system; it is not health-based, and the most recent began in January 2009. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Potosi R Iii Schools Ballfield Complex's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Potosi R Iii Schools Ballfield Complex 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 Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Potosi Pws | Washington | 2,527 | Community | Groundwater |
| Kingston K 14 School Primary | Washington | 975 | Non-transient non-community | Groundwater |
| Potosi East | Washington | 900 | Community | Groundwater |
| Ymca Trout Lodge & Camp Lakewood | Washington | 800 | Transient non-community | Groundwater |
| Washington County Pwsd 1 | Washington | 503 | Community | Purchased groundwater |
| Irondale Pws | Washington | 420 | 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, “Potosi R Iii Schools Ballfield Complex, PWSID MO4172863, Missouri”, https://aquacensus.com/water-systems/missouri/potosi-r-iii-schools-ballfield-complex-mo4172863 (data as of October 1, 2026).