Public water system · CA1400527
ActiveKeeler Yard Ladwp
At a glance
Keeler Yard Ladwp (PWSID CA1400527) is an active non-transient non-community water system in Inyo County, California. It reports serving 66 people through 3 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
66
Service connections
3
Primary source
SW
Surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Keeler Yard Ladwp compare with other water systems in Inyo County?
By EPA's size categories, Keeler Yard Ladwp is a very small system (500 people or fewer). Inyo County has 112 active public water systems. Its population served is well below the county average of 442 people per system, and accounts for 0.1% of the 49,451 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 Keeler Yard Ladwp 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Keeler Yard Ladwp?
EPA lists Keeler Yard Ladwp as owned by a local 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. 25 of the 112 active systems in Inyo County (22%) are also owned by a local government.
Does Keeler Yard Ladwp have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2020. The violations listed here began between May 2008 and January 2020. By type: 4 monitoring and reporting. The contaminants or rules involved are Haloacetic acids (HAA5), Total trihalomethanes (TTHM), Arsenic and Total coliform bacteria (TCR). EPA lists 4 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 |
|---|---|---|---|---|
| 2020-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2008-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 4 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.
Keeler Yard Ladwp: frequently asked questions
Who runs Keeler Yard Ladwp?
Keeler Yard Ladwp (PWSID CA1400527) is a non-transient non-community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Keeler Yard Ladwp serve?
Keeler Yard Ladwp reports serving 66 people through 3 service connections in Inyo County, California.
Where does Keeler Yard Ladwp get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Keeler Yard Ladwp have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2020. 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 Keeler Yard Ladwp'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 4 violations for this system; none is health-based, and the most recent began in January 2020. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Keeler Yard Ladwp's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Keeler Yard Ladwp 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 Inyo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bishop Creek Chevron | Inyo | 16,793 | Transient non-community | Groundwater |
| Bishop, City of | Inyo | 3,819 | Community | Groundwater |
| Petite Pantry | Inyo | 3,012 | Transient non-community | Groundwater |
| Lee'S Frontier | Inyo | 2,000 | Transient non-community | Groundwater |
| Inyo County PWD - Lone Pine | Inyo | 1,835 | Community | Purchased groundwater |
| Pearsonville Water System | Inyo | 1,515 | Transient non-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, “Keeler Yard Ladwp, PWSID CA1400527, California”, https://aquacensus.com/water-systems/california/keeler-yard-ladwp-ca1400527 (data as of October 1, 2026).