Public water system · NE3120573
ActiveCoreslab Structures Inc.
At a glance
Coreslab Structures Inc. (PWSID NE3120573) is an active non-transient non-community water system in Sarpy County, Nebraska. It reports serving 220 people through 11 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; 5 are health-based, and the most recent began in July 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
220
Service connections
11
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Coreslab Structures Inc. compare with other water systems in Sarpy County?
By EPA's size categories, Coreslab Structures Inc. is a very small system (500 people or fewer). Sarpy County has 31 active public water systems. Its population served is well below the county average of 1,928 people per system, and accounts for 0.4% of the 59,769 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 Coreslab Structures Inc. is about half of 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 Coreslab Structures Inc.?
EPA lists Coreslab Structures Inc. 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. 11 of the 31 active systems in Sarpy County (35%) are also privately owned.
Does Coreslab Structures Inc. have drinking water violations?
EPA's records list 9 violations for this system; 5 are health-based, and the most recent began in July 2018. The violations listed here began between September 1993 and July 2018. By type: 5 contaminant level above the legal limit, 3 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 8 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2018-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2006-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-06-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1994-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1993-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 9 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.
Coreslab Structures Inc.: frequently asked questions
Who runs Coreslab Structures Inc.?
Coreslab Structures Inc. (PWSID NE3120573) is a non-transient non-community water system privately owned. It is regulated by the NE state drinking water program.
How many people does Coreslab Structures Inc. serve?
Coreslab Structures Inc. reports serving 220 people through 11 service connections in Sarpy County, Nebraska.
Where does Coreslab Structures Inc. 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 Coreslab Structures Inc. have any drinking water violations?
EPA's records list 9 violations for this system; 5 are health-based, and the most recent began in July 2018. 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 Coreslab Structures Inc.'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 9 violations for this system; 5 are health-based, and the most recent began in July 2018. For current results, consult EPA ECHO, or the NE state drinking water program.
Where can I find Coreslab Structures Inc.'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Coreslab Structures Inc. 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 Sarpy County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Papillion, City of | Sarpy | 35,000 | Community | Groundwater |
| Gretna, City of | Sarpy | 8,661 | Community | Groundwater |
| City of Gretna - Sapp Bros | Sarpy | 5,975 | Non-transient non-community | Groundwater |
| Gretna Sports Complex | Sarpy | 2,000 | Transient non-community | Groundwater |
| Sarpy Co Sid 158 - Tiburon Golf Course | Sarpy | 1,992 | Community | Groundwater |
| Springfield, City of | Sarpy | 1,529 | 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, “Coreslab Structures Inc., PWSID NE3120573, Nebraska”, https://aquacensus.com/water-systems/nebraska/coreslab-structures-inc-ne3120573 (data as of October 1, 2026).