Public water system · CA5700778
ActiveYolo Co Central Landfill
At a glance
Yolo Co Central Landfill (PWSID CA5700778) is an active non-transient non-community water system in Yolo County, California. It reports serving 40 people through 5 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40
Service connections
5
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Yolo Co Central Landfill compare with other water systems in Yolo County?
By EPA's size categories, Yolo Co Central Landfill is a very small system (500 people or fewer). Yolo County has 88 active public water systems. Its population served is well below the county average of 2,951 people per system, and accounts for less than 0.1% of the 259,714 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Yolo Co Central Landfill is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. California has 1,466 active non-transient non-community water systems, 20% 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 Yolo Co Central Landfill?
EPA lists Yolo Co Central Landfill 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. 69 of the 88 active systems in Yolo County (78%) are also privately owned.
Does Yolo Co Central Landfill have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in October 2025. The violations listed here began between April 2013 and October 2025. By type: 2 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Arsenic (2 of them). EPA lists 2 as resolved and 1 as addressed. 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. Addressed means the violation is not resolved or archived and is covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Addressed |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2013-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | 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.
Yolo Co Central Landfill: frequently asked questions
Who runs Yolo Co Central Landfill?
Yolo Co Central Landfill (PWSID CA5700778) is a non-transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Yolo Co Central Landfill serve?
Yolo Co Central Landfill reports serving 40 people through 5 service connections in Yolo County, California.
Where does Yolo Co Central Landfill 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 Yolo Co Central Landfill have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in October 2025. 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 Yolo Co Central Landfill'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; 1 is health-based, and the most recent began in October 2025. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Yolo Co Central Landfill's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Yolo Co Central Landfill is a non-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 Yolo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Davis | Yolo | 67,457 | Community | Purchased surface water |
| City of Woodland | Yolo | 61,462 | Community | Purchased surface water |
| City of West Sacramento | Yolo | 53,355 | Community | Surface water |
| Uc - Davis | Yolo | 49,616 | Community | Purchased surface water |
| City of Winters | Yolo | 7,115 | Community | Groundwater |
| Esparto C.S.D. | Yolo | 3,574 | 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, “Yolo Co Central Landfill, PWSID CA5700778, California”, https://aquacensus.com/water-systems/california/yolo-co-central-landfill-ca5700778 (data as of October 1, 2026).