Public water system · MO5301479
ActiveIsla Del Sol
At a glance
Isla Del Sol (PWSID MO5301479) is an active transient non-community water system in Miller County, Missouri. It reports serving 200 people through 90 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
200
Service connections
90
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Isla Del Sol compare with other water systems in Miller County?
By EPA's size categories, Isla Del Sol is a very small system (500 people or fewer). Miller County has 51 active public water systems. Its population served is about 21% below the county average of 252 people per system, and accounts for 1.6% of the 12,838 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Isla Del Sol is about 39% 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. Missouri has 1,103 active transient non-community water systems, 37% 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 Isla Del Sol?
EPA lists Isla Del Sol 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. 41 of the 51 active systems in Miller County (80%) are also privately owned.
Does Isla Del Sol have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in December 2025. The violations listed here began between July 2008 and December 2025. By type: 3 public notice, recordkeeping or other, 3 monitoring and reporting, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 6 as resolved, 1 as unaddressed 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2025-12-18 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-05-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2010-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-08-31 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2008-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 8 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.
Isla Del Sol: frequently asked questions
Who runs Isla Del Sol?
Isla Del Sol (PWSID MO5301479) is a transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Isla Del Sol serve?
Isla Del Sol reports serving 200 people through 90 service connections in Miller County, Missouri.
Where does Isla Del Sol 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 Isla Del Sol have any drinking water violations?
EPA's records list 8 violations for this system; 1 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 Isla Del Sol'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 8 violations for this system; 1 is health-based, and the most recent began in December 2025. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Isla Del Sol's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Isla Del Sol 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 Miller County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eldon Pws | Miller | 4,895 | Community | Groundwater |
| Lake Ozark Pws | Miller | 2,007 | Community | Groundwater |
| Iberia Pws | Miller | 700 | Community | Groundwater |
| Lake Ozark State Park Homestead | Miller | 500 | Transient non-community | Groundwater |
| St Elizabeth Pws | Miller | 435 | Community | Groundwater |
| El Rancho Travel Center | Miller | 350 | 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, “Isla Del Sol, PWSID MO5301479, Missouri”, https://aquacensus.com/water-systems/missouri/isla-del-sol-mo5301479 (data as of October 1, 2026).