Public water system · CA3103260
ActiveUsfs Robinson Flat
At a glance
Usfs Robinson Flat (PWSID CA3103260) is an active transient non-community water system in Placer County, California. It reports serving 25 people through 1 service connection. Its primary water source is surface water, and EPA lists it as privately owned. EPA's records list 2 violations for this system; all are health-based, and the most recent began in September 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Usfs Robinson Flat compare with other water systems in Placer County?
By EPA's size categories, Usfs Robinson Flat is a very small system (500 people or fewer). Placer County has 116 active public water systems. Its population served is well below the county average of 3,692 people per system, and accounts for less than 0.1% of the 428,242 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 Usfs Robinson Flat is well below 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Usfs Robinson Flat?
EPA lists Usfs Robinson Flat as privately owned. 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. 78 of the 116 active systems in Placer County (67%) are also privately owned.
Does Usfs Robinson Flat have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in September 2015. The violations listed here began between July 2012 and September 2015. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 2015-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
Usfs Robinson Flat: frequently asked questions
Who runs Usfs Robinson Flat?
Usfs Robinson Flat (PWSID CA3103260) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Usfs Robinson Flat serve?
Usfs Robinson Flat reports serving 25 people through 1 service connection in Placer County, California.
Where does Usfs Robinson Flat get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Usfs Robinson Flat have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in September 2015. 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 Usfs Robinson Flat'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 2 violations for this system; all are health-based, and the most recent began in September 2015. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Usfs Robinson Flat's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Usfs Robinson Flat 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 Placer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Roseville | Placer | 155,612 | Community | Surface water |
| Placer Cwa - Foothill | Placer | 89,544 | Community | Surface water |
| City of Lincoln | Placer | 54,538 | Community | Purchased surface water |
| Placer Cwa - Auburn/Bowman | Placer | 27,294 | Community | Surface water |
| Northstar C.S.D. | Placer | 15,452 | Community | Surface water |
| Cal Am - West Placer | Placer | 8,861 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Usfs Robinson Flat, PWSID CA3103260, California”, https://aquacensus.com/water-systems/california/usfs-robinson-flat-ca3103260 (data as of October 1, 2026).