Public water system · CA5500010
ActiveUsbr-Tuttletown Rec Area
At a glance
Usbr-Tuttletown Rec Area (PWSID CA5500010) is an active transient non-community water system in Tuolumne County, California. It reports serving 1,000 people through 11 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,000
Service connections
11
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Usbr-Tuttletown Rec Area compare with other water systems in Tuolumne County?
By EPA's size categories, Usbr-Tuttletown Rec Area is a small system (501 to 3,300 people). Tuolumne County has 117 active public water systems. Its population served is about 42% above the county average of 706 people per system, and accounts for 1.2% of the 82,611 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 Usbr-Tuttletown Rec Area is about 6.9 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 Usbr-Tuttletown Rec Area?
EPA lists Usbr-Tuttletown Rec Area as owned by the federal 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. 22 of the 117 active systems in Tuolumne County (19%) are also owned by the federal government.
Does Usbr-Tuttletown Rec Area have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2016. The violations listed here began between January 2006 and July 2016. By type: 1 monitoring and 1 contaminant level above the legal limit. The contaminants or rules involved are Revised Total Coliform Rule and Total coliform bacteria (TCR). 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 |
|---|---|---|---|---|
| 2016-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2006-01-01 | 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.
Usbr-Tuttletown Rec Area: frequently asked questions
Who runs Usbr-Tuttletown Rec Area?
Usbr-Tuttletown Rec Area (PWSID CA5500010) is a transient non-community water system owned by the federal government. It is regulated by the CA state drinking water program.
How many people does Usbr-Tuttletown Rec Area serve?
Usbr-Tuttletown Rec Area reports serving 1,000 people through 11 service connections in Tuolumne County, California.
Where does Usbr-Tuttletown Rec 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 Usbr-Tuttletown Rec Area have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2016. 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 Usbr-Tuttletown Rec 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 2 violations for this system; 1 is health-based, and the most recent began in July 2016. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Usbr-Tuttletown Rec Area's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Usbr-Tuttletown Rec 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 Tuolumne County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Tud - Upper Basin Water System | Tuolumne | 13,280 | Community | Surface water |
| Tud - Sonora/Jamestown Water System | Tuolumne | 11,054 | Community | Surface water |
| Tud - Columbia Water System | Tuolumne | 5,463 | Community | Surface water |
| Peppery Bar and Grill, the | Tuolumne | 4,500 | Transient non-community | Groundwater |
| Cdcr - Sierra Conservation Center | Tuolumne | 3,571 | Community | Surface water |
| Groveland Community Serv Dist | Tuolumne | 3,400 | Community | 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, “Usbr-Tuttletown Rec Area, PWSID CA5500010, California”, https://aquacensus.com/water-systems/california/usbr-tuttletown-rec-area-ca5500010 (data as of October 1, 2026).