Public water system · WA5393860
ActiveWawawai County Park
At a glance
Wawawai County Park (PWSID WA5393860) is an active transient non-community water system in Whitman County, Washington. It reports serving 154 people through 10 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 6 are health-based, and the most recent began in October 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
154
Service connections
10
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Wawawai County Park compare with other water systems in Whitman County?
By EPA's size categories, Wawawai County Park is a very small system (500 people or fewer). Whitman County has 33 active public water systems. Its population served is well below the county average of 2,055 people per system, and accounts for 0.2% of the 67,820 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Wawawai County Park is roughly in line with 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. Washington has 1,913 active transient non-community water systems, 41% of the state's 4,705 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,370 Washington systems (93%) list groundwater as their primary source.
Who owns and regulates Wawawai County Park?
EPA lists Wawawai County Park as owned by a local government. The WA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 23 of the 33 active systems in Whitman County (70%) are also owned by a local government.
Does Wawawai County Park have drinking water violations?
EPA's records list 11 violations for this system; 6 are health-based, and the most recent began in October 2005. The violations listed here began between March 1992 and October 2005. By type: 6 contaminant level above the legal limit and 5 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (11 of them). EPA lists 11 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2005-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2003-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1999-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1998-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1997-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-10-19 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1992-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1992-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 11 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.
Wawawai County Park: frequently asked questions
Who runs Wawawai County Park?
Wawawai County Park (PWSID WA5393860) is a transient non-community water system owned by a local government. It is regulated by the WA state drinking water program.
How many people does Wawawai County Park serve?
Wawawai County Park reports serving 154 people through 10 service connections in Whitman County, Washington.
Where does Wawawai County Park 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 Wawawai County Park have any drinking water violations?
EPA's records list 11 violations for this system; 6 are health-based, and the most recent began in October 2005. 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 Wawawai County Park'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 11 violations for this system; 6 are health-based, and the most recent began in October 2005. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Wawawai County Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Wawawai County Park 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 Whitman County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pullman Water Department City of | Whitman | 31,315 | Community | Groundwater |
| Washington State University | Whitman | 21,506 | Community | Groundwater |
| Colfax Water Department City of | Whitman | 3,507 | Community | Groundwater |
| Palouse Water Dept City of | Whitman | 1,298 | Community | Groundwater |
| Tekoa City of | Whitman | 1,076 | Community | Groundwater |
| Horn School Rest Area | Whitman | 833 | 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, “Wawawai County Park, PWSID WA5393860, Washington”, https://aquacensus.com/water-systems/washington/wawawai-county-park-wa5393860 (data as of October 1, 2026).