Public water system · CA5200670
ActiveBlack Butte Lake, Buckhorn Group, Uscoe
At a glance
Black Butte Lake, Buckhorn Group, Uscoe (PWSID CA5200670) is an active transient non-community water system in Tehama County, California. It reports serving 250 people through 1 service connection. 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 October 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
250
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Black Butte Lake, Buckhorn Group, Uscoe compare with other water systems in Tehama County?
By EPA's size categories, Black Butte Lake, Buckhorn Group, Uscoe is a very small system (500 people or fewer). Tehama County has 109 active public water systems. Its population served is about half of the county average of 474 people per system, and accounts for 0.5% of the 51,627 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 Black Butte Lake, Buckhorn Group, Uscoe is about 74% above 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 Black Butte Lake, Buckhorn Group, Uscoe?
EPA lists Black Butte Lake, Buckhorn Group, Uscoe 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. 11 of the 109 active systems in Tehama County (10%) are also owned by the federal government.
Does Black Butte Lake, Buckhorn Group, Uscoe have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2016. The violations listed here began between May 2006 and October 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 |
|---|---|---|---|---|
| 2016-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2006-05-01 | 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.
Black Butte Lake, Buckhorn Group, Uscoe: frequently asked questions
Who runs Black Butte Lake, Buckhorn Group, Uscoe?
Black Butte Lake, Buckhorn Group, Uscoe (PWSID CA5200670) 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 Black Butte Lake, Buckhorn Group, Uscoe serve?
Black Butte Lake, Buckhorn Group, Uscoe reports serving 250 people through 1 service connection in Tehama County, California.
Where does Black Butte Lake, Buckhorn Group, Uscoe 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 Black Butte Lake, Buckhorn Group, Uscoe have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 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 Black Butte Lake, Buckhorn Group, Uscoe'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 October 2016. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Black Butte Lake, Buckhorn Group, Uscoe's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Black Butte Lake, Buckhorn Group, Uscoe 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 Tehama County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Red Bluff | Tehama | 14,710 | Community | Groundwater |
| City of Corning | Tehama | 8,244 | Community | Groundwater |
| Rio Alto Water District | Tehama | 3,329 | Community | Groundwater |
| Caltrans-Red Bluff Rest-Nb | Tehama | 2,600 | Transient non-community | Groundwater |
| Caltrans-Red Bluff Rest-Sb | Tehama | 2,500 | Transient non-community | Groundwater |
| Los Molinos Comm. Services Dist. | Tehama | 1,450 | 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, “Black Butte Lake, Buckhorn Group, Uscoe, PWSID CA5200670, California”, https://aquacensus.com/water-systems/california/black-butte-lake-buckhorn-group-uscoe-ca5200670 (data as of October 1, 2026).