Public water system · CA3610301
ActiveNps - Kelso Depot
At a glance
Nps - Kelso Depot (PWSID CA3610301) is an active transient non-community water system in San Bernardino County, California. It reports serving 254 people through 6 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
254
Service connections
6
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Nps - Kelso Depot compare with other water systems in San Bernardino County?
By EPA's size categories, Nps - Kelso Depot is a very small system (500 people or fewer). San Bernardino County has 306 active public water systems. Its population served is well below the county average of 9,227 people per system, and accounts for less than 0.1% of the 2,823,318 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 Nps - Kelso Depot is about 77% above 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 Nps - Kelso Depot?
EPA lists Nps - Kelso Depot as owned by the federal 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. 21 of the 306 active systems in San Bernardino County (6.9%) are also owned by the federal government.
Does Nps - Kelso Depot have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2025. The violations listed here began between January 2013 and January 2025. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Nitrate (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 2 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.
Nps - Kelso Depot: frequently asked questions
Who runs Nps - Kelso Depot?
Nps - Kelso Depot (PWSID CA3610301) is a transient non-community water system owned by the federal government. It is regulated by the CA state drinking water program.
How many people does Nps - Kelso Depot serve?
Nps - Kelso Depot reports serving 254 people through 6 service connections in San Bernardino County, California.
Where does Nps - Kelso Depot 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 Nps - Kelso Depot have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 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 Nps - Kelso Depot'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 2 violations for this system; none is health-based, and the most recent began in January 2025. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Nps - Kelso Depot's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Nps - Kelso Depot 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 San Bernardino County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| San Gabriel Valley Wc - Fontana | San Bernardino | 237,700 | Community | Surface water |
| San Bernardino City | San Bernardino | 214,665 | Community | Groundwater |
| Cucamonga Valley Water District | San Bernardino | 211,069 | Community | Surface water |
| Ontario Municipal Utilities Company | San Bernardino | 185,010 | Community | Purchased surface water |
| Victorville Water District | San Bernardino | 135,983 | Community | Purchased surface water |
| San Bernardino Valley Wd | San Bernardino | 109,608 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Nps - Kelso Depot, PWSID CA3610301, California”, https://aquacensus.com/water-systems/california/nps-kelso-depot-ca3610301 (data as of October 1, 2026).