Public water system · MO5036168
ActiveShell Rock Utilities
At a glance
Shell Rock Utilities (PWSID MO5036168) is an active community water system in Barry County, Missouri. It reports serving 45 people through 65 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; none is health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
45
Service connections
65
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Shell Rock Utilities compare with other water systems in Barry County?
By EPA's size categories, Shell Rock Utilities is a very small system (500 people or fewer). Barry County has 88 active public water systems. Its population served is well below the county average of 341 people per system, and accounts for 0.1% of the 30,034 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active community water system reports serving 6,703 people, so Shell Rock Utilities 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. Missouri has 1,612 active community water systems, 55% of the state's 2,943 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,521 Missouri systems (86%) list groundwater as their primary source.
Who owns and regulates Shell Rock Utilities?
EPA lists Shell Rock Utilities as privately owned. The MO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 70 of the 88 active systems in Barry County (80%) are also privately owned.
Does Shell Rock Utilities have drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in December 2025. The violations listed here began between July 1994 and December 2025. By type: 6 monitoring and reporting, 2 monitoring, 2 public notice, recordkeeping or other and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 9 as resolved and 2 as unaddressed. 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. 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 |
|---|---|---|---|---|
| 2025-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2024-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2006-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2000-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 11 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.
Shell Rock Utilities: frequently asked questions
Who runs Shell Rock Utilities?
Shell Rock Utilities (PWSID MO5036168) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Shell Rock Utilities serve?
Shell Rock Utilities reports serving 45 people through 65 service connections in Barry County, Missouri.
Where does Shell Rock Utilities 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 Shell Rock Utilities have any drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in December 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 Shell Rock Utilities' 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 11 violations for this system; none is health-based, and the most recent began in December 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Shell Rock Utilities' water quality report?
As a community water system, Shell Rock Utilities 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 Barry County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Monett Pws | Barry | 9,789 | Community | Groundwater |
| Cassville Pws | Barry | 3,290 | Community | Groundwater |
| Southwest Rural Water District 1 | Barry | 2,700 | Community | Groundwater |
| Purdy Pws | Barry | 1,100 | Community | Groundwater |
| Georges Processing Inc. | Barry | 1,000 | Non-transient non-community | Groundwater |
| Harter House of Shell Knob | Barry | 900 | 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, “Shell Rock Utilities, PWSID MO5036168, Missouri”, https://aquacensus.com/water-systems/missouri/shell-rock-utilities-mo5036168 (data as of October 1, 2026).