Public water system · WA5311901
ActiveRadar Hill Water System
At a glance
Radar Hill Water System (PWSID WA5311901) is an active community water system in Franklin County, Washington. It reports serving 128 people through 33 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, none is health-based, and the most recent began in February 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
128
Service connections
33
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Radar Hill Water System compare with other water systems in Franklin County?
By EPA's size categories, Radar Hill Water System is a very small system (500 people or fewer). Franklin County has 80 active public water systems. Its population served is well below the county average of 1,644 people per system, and accounts for less than 0.1% of the 131,535 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 Radar Hill Water System 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 Radar Hill Water System?
EPA lists Radar Hill Water System 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. 67 of the 80 active systems in Franklin County (84%) are also privately owned.
Does Radar Hill Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in February 2020. The violations listed here began between January 2010 and February 2020. By type: 8 monitoring and reporting, 3 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Consumer Confidence Rule (3 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 |
|---|---|---|---|---|
| 2020-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2015-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2014-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2011-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2010-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | 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.
Radar Hill Water System: frequently asked questions
Who runs Radar Hill Water System?
Radar Hill Water System (PWSID WA5311901) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Radar Hill Water System serve?
Radar Hill Water System reports serving 128 people through 33 service connections in Franklin County, Washington.
Where does Radar Hill Water System 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 Radar Hill Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in February 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 Radar Hill Water System'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, none is health-based, and the most recent began in February 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Radar Hill Water System's water quality report?
As a community water system, Radar Hill Water System 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 Franklin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pasco Water Department | Franklin | 115,102 | Community | Surface water |
| Connell City of | Franklin | 5,150 | Community | Groundwater |
| Basin City Water Sewer District | Franklin | 1,740 | Community | Groundwater |
| Lamb-Weston Pasco | Franklin | 620 | Non-transient non-community | Groundwater |
| Pasco Port of 210 | Franklin | 500 | Non-transient non-community | Purchased surface water |
| Mesa Water Department | Franklin | 495 | 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, “Radar Hill Water System, PWSID WA5311901, Washington”, https://aquacensus.com/water-systems/washington/radar-hill-water-system-wa5311901 (data as of October 1, 2026).