Public water system · WA5307029
ActiveYakima Training Center - Mtef
At a glance
Yakima Training Center - Mtef (PWSID WA5307029) is an active non-transient non-community water system in Yakima County, Washington. It reports serving 30 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list one violation for this system; it is not health-based, and the most recent began in May 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
4
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Yakima Training Center - Mtef compare with other water systems in Yakima County?
By EPA's size categories, Yakima Training Center - Mtef is a very small system (500 people or fewer). Yakima County has 217 active public water systems. Its population served is well below the county average of 1,230 people per system, and accounts for less than 0.1% of the 266,832 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Yakima Training Center - Mtef is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Washington has 400 active non-transient non-community water systems, 8.5% 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 Yakima Training Center - Mtef?
EPA lists Yakima Training Center - Mtef as owned by the federal 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. 8 of the 217 active systems in Yakima County (3.7%) are also owned by the federal government.
Does Yakima Training Center - Mtef have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in May 2005. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 2005-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Yakima Training Center - Mtef: frequently asked questions
Who runs Yakima Training Center - Mtef?
Yakima Training Center - Mtef (PWSID WA5307029) is a non-transient non-community water system owned by the federal government. It is regulated by the WA state drinking water program.
How many people does Yakima Training Center - Mtef serve?
Yakima Training Center - Mtef reports serving 30 people through 4 service connections in Yakima County, Washington.
Where does Yakima Training Center - Mtef 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 Yakima Training Center - Mtef 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 May 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 Yakima Training Center - Mtef'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 May 2005. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Yakima Training Center - Mtef's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Yakima Training Center - Mtef is a non-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 Yakima County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Yakima Water Division City of | Yakima | 112,858 | Community | Surface water |
| Nob Hill Water Association | Yakima | 38,050 | Community | Groundwater |
| Sunnyside City of | Yakima | 17,194 | Community | Groundwater |
| Grandview City of | Yakima | 11,010 | Community | Groundwater |
| Selah City of | Yakima | 9,331 | Community | Groundwater |
| Toppenish Water Department | Yakima | 8,950 | 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, “Yakima Training Center - Mtef, PWSID WA5307029, Washington”, https://aquacensus.com/water-systems/washington/yakima-training-center-mtef-wa5307029 (data as of October 1, 2026).