Public water system · CA4500289
ActiveCaltrans-Shingletown Srra
At a glance
Caltrans-Shingletown Srra (PWSID CA4500289) is an active transient non-community water system in Shasta County, California. It reports serving 275 people through 1 service connection. 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 October 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
275
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Caltrans-Shingletown Srra compare with other water systems in Shasta County?
By EPA's size categories, Caltrans-Shingletown Srra is a very small system (500 people or fewer). Shasta County has 174 active public water systems. Its population served is well below the county average of 1,208 people per system, and accounts for 0.1% of the 210,209 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 Caltrans-Shingletown Srra is about twice 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 Caltrans-Shingletown Srra?
EPA lists Caltrans-Shingletown Srra 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. 8 of the 174 active systems in Shasta County (4.6%) are also owned by a state government.
Does Caltrans-Shingletown Srra have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2005. 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 |
|---|---|---|---|---|
| 2005-10-01 | 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.
Caltrans-Shingletown Srra: frequently asked questions
Who runs Caltrans-Shingletown Srra?
Caltrans-Shingletown Srra (PWSID CA4500289) 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 Caltrans-Shingletown Srra serve?
Caltrans-Shingletown Srra reports serving 275 people through 1 service connection in Shasta County, California.
Where does Caltrans-Shingletown Srra 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 Caltrans-Shingletown Srra 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 October 2005. 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 Caltrans-Shingletown Srra'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 October 2005. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Caltrans-Shingletown Srra's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Caltrans-Shingletown Srra 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 Shasta County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Redding | Shasta | 89,628 | Community | Surface water |
| Bella Vista Water District | Shasta | 18,612 | Community | Surface water |
| City of Anderson | Shasta | 11,147 | Community | Groundwater |
| City of Shasta Lake | Shasta | 10,657 | Community | Surface water |
| Shasta District Fair | Shasta | 10,200 | Transient non-community | Groundwater |
| Clear Creek Csd-Anderson | Shasta | 8,900 | 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, “Caltrans-Shingletown Srra, PWSID CA4500289, California”, https://aquacensus.com/water-systems/california/caltrans-shingletown-srra-ca4500289 (data as of October 1, 2026).