Public water system · NE3121297
ActiveSentinel Building Systems
At a glance
Sentinel Building Systems (PWSID NE3121297) is an active non-transient non-community water system in Boone County, Nebraska. It reports serving 45 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
45
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Sentinel Building Systems compare with other water systems in Boone County?
By EPA's size categories, Sentinel Building Systems is a very small system (500 people or fewer). Boone County has 8 active public water systems. Its population served is well below the county average of 422 people per system, and accounts for 1.3% of the 3,378 people reported by systems filed under the county. Across Nebraska, the 1,226 active systems average 1,472 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Sentinel Building Systems 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. Nebraska has 138 active non-transient non-community water systems, 11% of the state's 1,226 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,095 Nebraska systems (89%) list groundwater as their primary source.
Who owns and regulates Sentinel Building Systems?
EPA lists Sentinel Building Systems as privately owned. The NE 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 8 active systems in Boone County (25%) are also privately owned.
Does Sentinel Building Systems 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 2024. By type: 1 reporting. The contaminant or rule involved is Lead and Copper Rule Revisions. EPA lists 1 as unaddressed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
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.
Sentinel Building Systems: frequently asked questions
Who runs Sentinel Building Systems?
Sentinel Building Systems (PWSID NE3121297) is a non-transient non-community water system privately owned. It is regulated by the NE state drinking water program.
How many people does Sentinel Building Systems serve?
Sentinel Building Systems reports serving 45 people through 1 service connection in Boone County, Nebraska.
Where does Sentinel Building Systems 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 Sentinel Building Systems 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 2024. 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 Sentinel Building Systems' 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 2024. For current results, consult EPA ECHO, or the NE state drinking water program.
Where can I find Sentinel Building Systems' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Sentinel Building Systems 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 Boone County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Albion, City of | Boone | 1,700 | Community | Groundwater |
| St Edward, City of | Boone | 710 | Community | Groundwater |
| Cedar Rapids, Village of | Boone | 382 | Community | Groundwater |
| Petersburg, Village of | Boone | 333 | Community | Groundwater |
| Albion Country Club | Boone | 75 | Transient non-community | Groundwater |
| Primrose, Village of | Boone | 69 | 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, “Sentinel Building Systems, PWSID NE3121297, Nebraska”, https://aquacensus.com/water-systems/nebraska/sentinel-building-systems-ne3121297 (data as of October 1, 2026).