Public water system · MO5036125
ActiveMountain Estates
At a glance
Mountain Estates (PWSID MO5036125) is an active community water system in Stone County, Missouri. It reports serving 76 people through 39 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
76
Service connections
39
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mountain Estates compare with other water systems in Stone County?
By EPA's size categories, Mountain Estates is a very small system (500 people or fewer). Stone County has 228 active public water systems. Its population served is about 62% below the county average of 203 people per system, and accounts for 0.2% of the 46,191 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 Mountain Estates 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 Mountain Estates?
EPA lists Mountain Estates 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. 213 of the 228 active systems in Stone County (93%) are also privately owned.
Does Mountain Estates have drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in July 2025. The violations listed here began between January 1991 and July 2025. By type: 3 contaminant level above the legal limit, 2 monitoring and reporting, 1 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 5 as archived, 1 as unaddressed and 1 as resolved. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1998-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1998-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1991-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1991-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Mountain Estates: frequently asked questions
Who runs Mountain Estates?
Mountain Estates (PWSID MO5036125) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Mountain Estates serve?
Mountain Estates reports serving 76 people through 39 service connections in Stone County, Missouri.
Where does Mountain Estates 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 Mountain Estates have any drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in July 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 Mountain Estates' 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 July 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 Mountain Estates' water quality report?
As a community water system, Mountain Estates 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 Stone County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Silver Dollar City Marvel Cave | Stone | 8,501 | Non-transient non-community | Groundwater |
| Mo American Stonebridge Village | Stone | 2,100 | Community | Groundwater |
| Stone County Pwsd 1 | Stone | 2,052 | Community | Groundwater |
| Kanakuk Kamp No 2 | Stone | 2,000 | Transient non-community | Groundwater |
| Pwsd 2 of Stone County 265 | Stone | 1,535 | Community | Groundwater |
| Crane Pws | Stone | 1,495 | 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, “Mountain Estates, PWSID MO5036125, Missouri”, https://aquacensus.com/water-systems/missouri/mountain-estates-mo5036125 (data as of October 1, 2026).