Public water system · WA53FS062
ActiveBoulder Cave/Naches Rd
At a glance
Boulder Cave/Naches Rd (PWSID WA53FS062) is an active transient non-community water system in Yakima County, Washington. It reports serving 65 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 5 violations for this system; none is health-based, and the most recent began in January 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
65
Service connections
4
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Boulder Cave/Naches Rd compare with other water systems in Yakima County?
By EPA's size categories, Boulder Cave/Naches Rd 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 transient non-community water system reports serving 144 people, so Boulder Cave/Naches Rd is about half of 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 Boulder Cave/Naches Rd?
EPA lists Boulder Cave/Naches Rd 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 Boulder Cave/Naches Rd have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in January 2020. The violations listed here began between January 2013 and January 2020. By type: 5 monitoring and reporting. The contaminant or rule involved most often is Nitrate (5 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 5 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.
Boulder Cave/Naches Rd: frequently asked questions
Who runs Boulder Cave/Naches Rd?
Boulder Cave/Naches Rd (PWSID WA53FS062) is a transient non-community water system owned by the federal government. It is regulated by the WA state drinking water program.
How many people does Boulder Cave/Naches Rd serve?
Boulder Cave/Naches Rd reports serving 65 people through 4 service connections in Yakima County, Washington.
Where does Boulder Cave/Naches Rd 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 Boulder Cave/Naches Rd have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in January 2020. 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 Boulder Cave/Naches Rd'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 5 violations for this system; none is health-based, and the most recent began in January 2020. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Boulder Cave/Naches Rd's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Boulder Cave/Naches Rd 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 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, “Boulder Cave/Naches Rd, PWSID WA53FS062, Washington”, https://aquacensus.com/water-systems/washington/boulder-cave-naches-rd-wa53fs062 (data as of October 1, 2026).