Public water system · CA0400105
ActiveGray Lodge Check Station
At a glance
Gray Lodge Check Station (PWSID CA0400105) is an active transient non-community water system in Butte County, California. It reports serving 8,000 people through 6 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,000
Service connections
6
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Gray Lodge Check Station compare with other water systems in Butte County?
By EPA's size categories, Gray Lodge Check Station is a medium system (3,301 to 10,000 people). Butte County has 86 active public water systems. Its population served is about 197% above the county average of 2,697 people per system, and accounts for 3.4% 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 Gray Lodge Check Station is about 56 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 Gray Lodge Check Station?
EPA lists Gray Lodge Check Station 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. 4 of the 86 active systems in Butte County (4.7%) are also owned by a state government.
Does Gray Lodge Check Station have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2011. By type: 1 monitoring and reporting. The contaminant or rule involved is Nitrite. 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 |
|---|---|---|---|---|
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | 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.
Gray Lodge Check Station: frequently asked questions
Who runs Gray Lodge Check Station?
Gray Lodge Check Station (PWSID CA0400105) 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 Gray Lodge Check Station serve?
Gray Lodge Check Station reports serving 8,000 people through 6 service connections in Butte County, California.
Where does Gray Lodge Check Station 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 Gray Lodge Check Station 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 January 2011. 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 Gray Lodge Check Station'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 January 2011. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Gray Lodge Check Station's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Gray Lodge Check Station 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, “Gray Lodge Check Station, PWSID CA0400105, California”, https://aquacensus.com/water-systems/california/gray-lodge-check-station-ca0400105 (data as of October 1, 2026).