Public water system · NE3120818
ActiveRockville, Village of
At a glance
Village of Rockville (PWSID NE3120818) is an active community water system in Sherman County, Nebraska. It reports serving 90 people through 48 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in May 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
90
Service connections
48
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Village of Rockville compare with other water systems in Sherman County?
By EPA's size categories, Village of Rockville is a very small system (500 people or fewer). Sherman County has 10 active public water systems. Its population served is about half of the county average of 198 people per system, and accounts for 4.6% of the 1,978 people reported by systems filed under the county. Across Nebraska, the 1,226 active systems average 1,472 people each. Nationally, the average active community water system reports serving 6,703 people, so Village of Rockville is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Nebraska has 599 active community water systems, 49% 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 Village of Rockville?
EPA lists Village of Rockville as owned by a local government. 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. 4 of the 10 active systems in Sherman County (40%) are also owned by a local government.
Does Village of Rockville have drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in May 2021. The violations listed here began between November 1997 and May 2021. By type: 3 contaminant level above the legal limit, 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2021-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2013-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1998-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1997-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 7 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.
Village of Rockville: frequently asked questions
Who runs Village of Rockville?
Village of Rockville (PWSID NE3120818) is a community water system owned by a local government. It is regulated by the NE state drinking water program.
How many people does Village of Rockville serve?
Village of Rockville reports serving 90 people through 48 service connections in Sherman County, Nebraska.
Where does Village of Rockville 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 Village of Rockville have any drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in May 2021. 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 Village of Rockville'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 7 violations for this system; 3 are health-based, and the most recent began in May 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the NE state drinking water program.
Where can I find Village of Rockville's water quality report?
As a community water system, Village of Rockville must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Sherman County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Loup City, City of | Sherman | 1,045 | Community | Groundwater |
| Sherman Reservoir Sra - Ng & Pc | Sherman | 200 | Transient non-community | Groundwater |
| Ashton, Village of | Sherman | 196 | Community | Groundwater |
| Litchfield, Village of | Sherman | 151 | Community | Groundwater |
| Trade Winds Marina (Seasonal) | Sherman | 100 | Transient non-community | Groundwater |
| Trade Winds Marina (Non-Seasonal) | Sherman | 100 | Transient non-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, “Rockville, Village of, PWSID NE3120818, Nebraska”, https://aquacensus.com/water-systems/nebraska/rockville-village-of-ne3120818 (data as of October 1, 2026).