Public water system · CA0400103
ActivePg&E: Philbrook Dam
At a glance
Pg&E: Philbrook Dam (PWSID CA0400103) is an active transient non-community water system in Butte County, California. It reports serving 40 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in August 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40
Service connections
4
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Pg&E: Philbrook Dam compare with other water systems in Butte County?
By EPA's size categories, Pg&E: Philbrook Dam is a very small system (500 people or fewer). Butte County has 86 active public water systems. Its population served is well below the county average of 2,697 people per system, and accounts for less than 0.1% of the 231,911 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 Pg&E: Philbrook Dam 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. 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 Pg&E: Philbrook Dam?
EPA lists Pg&E: Philbrook Dam 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. 58 of the 86 active systems in Butte County (67%) are also privately owned.
Does Pg&E: Philbrook Dam have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in August 2008. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 2008-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The one violation in EPA's records.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.
Pg&E: Philbrook Dam: frequently asked questions
Who runs Pg&E: Philbrook Dam?
Pg&E: Philbrook Dam (PWSID CA0400103) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Pg&E: Philbrook Dam serve?
Pg&E: Philbrook Dam reports serving 40 people through 4 service connections in Butte County, California.
Where does Pg&E: Philbrook Dam 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 Pg&E: Philbrook Dam have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in August 2008. 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 Pg&E: Philbrook Dam'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 one violation for this system; it is not health-based, and the most recent began in August 2008. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Pg&E: Philbrook Dam's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Pg&E: Philbrook Dam 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 Butte County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Cal-Water Service Co.-Chico | Butte | 114,925 | Community | Groundwater |
| South Feather W&P - Miners Ranch | Butte | 22,664 | Community | Surface water |
| Butte-Glenn Community College Dist | Butte | 18,000 | Non-transient non-community | Groundwater |
| Thermalito Water & Sewer Dist | Butte | 12,136 | Community | Surface water |
| Cal-Water Service Co.-Oroville | Butte | 11,106 | Community | Surface water |
| Del Oro Water Co.-Paradise Pines | Butte | 10,940 | 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, “Pg&E: Philbrook Dam, PWSID CA0400103, California”, https://aquacensus.com/water-systems/california/pg-e-philbrook-dam-ca0400103 (data as of October 1, 2026).