Public water system · MO6120173
ActiveWashington State Park Office
At a glance
Washington State Park Office (PWSID MO6120173) is an active transient non-community water system in Washington County, Missouri. It reports serving 125 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in February 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
125
Service connections
4
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Washington State Park Office compare with other water systems in Washington County?
By EPA's size categories, Washington State Park Office is a very small system (500 people or fewer). Washington County has 37 active public water systems. Its population served is about half of the county average of 243 people per system, and accounts for 1.4% 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 Washington State Park Office is about 13% 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 Washington State Park Office?
EPA lists Washington 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. 3 of the 37 active systems in Washington County (8.1%) are also owned by a state government.
Does Washington State Park Office have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in February 2014. The violations listed here began between November 2008 and February 2014. By type: 9 contaminant level above the legal limit, 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (10 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 |
|---|---|---|---|---|
| 2014-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2011-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2010-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2009-01-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2008-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Washington State Park Office: frequently asked questions
Who runs Washington State Park Office?
Washington State Park Office (PWSID MO6120173) 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 Washington State Park Office serve?
Washington State Park Office reports serving 125 people through 4 service connections in Washington County, Missouri.
Where does Washington 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 Washington State Park Office have any drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in February 2014. 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 Washington 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. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in February 2014. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Washington State Park Office's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Washington 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 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, “Washington State Park Office, PWSID MO6120173, Missouri”, https://aquacensus.com/water-systems/missouri/washington-state-park-office-mo6120173 (data as of October 1, 2026).