Public water system · WA5335335
ActiveHiway Trailer Court
At a glance
Hiway Trailer Court (PWSID WA5335335) is an active community water system in Garfield County, Washington. It reports serving 36 people through 18 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in September 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
36
Service connections
18
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hiway Trailer Court compare with other water systems in Garfield County?
By EPA's size categories, Hiway Trailer Court is a very small system (500 people or fewer). Garfield County has 9 active public water systems, and Hiway Trailer Court is the 6th-largest of them by population served. Its population served is well below the county average of 412 people per system, and accounts for 1% of the 3,712 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active community water system reports serving 6,703 people, so Hiway Trailer Court is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Washington has 2,392 active community water systems, 51% 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 Hiway Trailer Court?
EPA lists Hiway Trailer Court as privately owned. 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. 4 of the 9 active systems in Garfield County (44%) are also privately owned.
Does Hiway Trailer Court have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in September 2023. The violations listed here began between January 2020 and September 2023. By type: 6 monitoring and reporting, 3 contaminant level above the legal limit, 2 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Nitrate (5 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 |
|---|---|---|---|---|
| 2023-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2022-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2022-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Thalliumcode 1085 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | 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.
Hiway Trailer Court: frequently asked questions
Who runs Hiway Trailer Court?
Hiway Trailer Court (PWSID WA5335335) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Hiway Trailer Court serve?
Hiway Trailer Court reports serving 36 people through 18 service connections in Garfield County, Washington.
Where does Hiway Trailer Court 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 Hiway Trailer Court have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in September 2023. 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 Hiway Trailer Court'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, 3 are health-based, and the most recent began in September 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Hiway Trailer Court's water quality report?
As a community water system, Hiway Trailer Court must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Garfield County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pomeroy City of | Garfield | 1,395 | Community | Groundwater |
| Garfield County Fairgrounds | Garfield | 1,250 | Transient non-community | Groundwater |
| Alpowa Summit Rest Area | Garfield | 801 | Transient non-community | Groundwater |
| Lower Granite Lock & Dam | Garfield | 120 | Non-transient non-community | Groundwater |
| Usace Illia Residential Area | Garfield | 46 | Community | Groundwater |
| Dye Seed Ranch 1 | Garfield | 30 | 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, “Hiway Trailer Court, PWSID WA5335335, Washington”, https://aquacensus.com/water-systems/washington/hiway-trailer-court-wa5335335 (data as of October 1, 2026).