Public water system · CA4800781
ActiveHunter Hill Safety Roadside Rest Area
At a glance
Hunter Hill Safety Roadside Rest Area (PWSID CA4800781) is an active transient non-community water system in Solano County, California. It reports serving 3,707 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in December 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,707
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Hunter Hill Safety Roadside Rest Area compare with other water systems in Solano County?
By EPA's size categories, Hunter Hill Safety Roadside Rest Area is a medium system (3,301 to 10,000 people). Solano County has 63 active public water systems. Its population served is about half of the county average of 7,509 people per system, and accounts for 0.8% of the 473,083 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Hunter Hill Safety Roadside Rest Area is about 26 times 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. California has 3,016 active transient non-community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Hunter Hill Safety Roadside Rest Area?
EPA lists Hunter Hill Safety Roadside Rest Area as owned by a state government. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 3 of the 63 active systems in Solano County (4.8%) are also owned by a state government.
Does Hunter Hill Safety Roadside Rest Area have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in December 2022. The violations listed here began between June 1995 and December 2022. By type: 2 monitoring and reporting, 1 reporting, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (2 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 |
|---|---|---|---|---|
| 2022-12-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2022-11-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-09-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Hunter Hill Safety Roadside Rest Area: frequently asked questions
Who runs Hunter Hill Safety Roadside Rest Area?
Hunter Hill Safety Roadside Rest Area (PWSID CA4800781) is a transient non-community water system owned by a state government. It is regulated by the CA state drinking water program.
How many people does Hunter Hill Safety Roadside Rest Area serve?
Hunter Hill Safety Roadside Rest Area reports serving 3,707 people through 1 service connection in Solano County, California.
Where does Hunter Hill Safety Roadside Rest Area 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 Hunter Hill Safety Roadside Rest Area have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in December 2022. 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 Hunter Hill Safety Roadside Rest Area'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; 1 is health-based, and the most recent began in December 2022. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Hunter Hill Safety Roadside Rest Area's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Hunter Hill Safety Roadside Rest Area 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 Solano County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Vallejo | Solano | 121,420 | Community | Surface water |
| City of Fairfield | Solano | 120,377 | Community | Surface water |
| City of Vacaville | Solano | 99,650 | Community | Surface water |
| Suisun-Solano Water Authority | Solano | 29,105 | Community | Surface water |
| City of Benicia | Solano | 27,131 | Community | Surface water |
| California Water Service Co.-Travis Afb | Solano | 18,111 | Community | Purchased surface water |
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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, “Hunter Hill Safety Roadside Rest Area, PWSID CA4800781, California”, https://aquacensus.com/water-systems/california/hunter-hill-safety-roadside-rest-area-ca4800781 (data as of October 1, 2026).