Public water system · CA3400302
ActiveRancho Seco Park
At a glance
Rancho Seco Park (PWSID CA3400302) is an active transient non-community water system in Sacramento County, California. It reports serving 558 people through 34 service connections. Its primary water source is groundwater, and EPA lists it as under public/private ownership. EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
558
Service connections
34
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Rancho Seco Park compare with other water systems in Sacramento County?
By EPA's size categories, Rancho Seco Park is a small system (501 to 3,300 people). Sacramento County has 164 active public water systems. Its population served is well below the county average of 10,325 people per system, and accounts for less than 0.1% of the 1,693,284 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 Rancho Seco Park is about 3.9 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 Rancho Seco Park?
EPA lists Rancho Seco Park as under public/private ownership. 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. 2 of the 164 active systems in Sacramento County (1.2%) are also under public/private ownership.
Does Rancho Seco Park have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2023. The violations listed here began between August 2013 and October 2023. By type: 2 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2023-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2014-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 3 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.
Rancho Seco Park: frequently asked questions
Who runs Rancho Seco Park?
Rancho Seco Park (PWSID CA3400302) is a transient non-community water system under public/private ownership. It is regulated by the CA state drinking water program.
How many people does Rancho Seco Park serve?
Rancho Seco Park reports serving 558 people through 34 service connections in Sacramento County, California.
Where does Rancho Seco Park 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 Rancho Seco Park have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2023. 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 Rancho Seco Park'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 3 violations for this system; none is health-based, and the most recent began in October 2023. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Rancho Seco Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Rancho Seco Park 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 Sacramento County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Sacramento Main | Sacramento | 527,979 | Community | Surface water |
| Sacramento Suburban Water District | Sacramento | 194,444 | Community | Purchased surface water |
| Scwa - Laguna/Vineyard | Sacramento | 184,896 | Community | Surface water |
| Folsom, City of - Main | Sacramento | 80,969 | Community | Surface water |
| Citrus Heights Water District | Sacramento | 67,818 | Community | Purchased surface water |
| Cal Am - Suburban Rosemont | Sacramento | 54,793 | 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, “Rancho Seco Park, PWSID CA3400302, California”, https://aquacensus.com/water-systems/california/rancho-seco-park-ca3400302 (data as of October 1, 2026).