Public water system · MO5048047
ActiveHorizon MHP
At a glance
Horizon MHP (PWSID MO5048047) is an active community water system in Stone County, Missouri. It reports serving 68 people through 23 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
68
Service connections
23
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Horizon MHP compare with other water systems in Stone County?
By EPA's size categories, Horizon MHP is a very small system (500 people or fewer). Stone County has 228 active public water systems. Its population served is about 66% below the county average of 203 people per system, and accounts for 0.1% 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 Horizon MHP 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 Horizon MHP?
EPA lists Horizon MHP 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 Horizon MHP have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2024. The violations listed here began between March 2014 and November 2024. By type: 5 monitoring, 4 public notice, recordkeeping or other, 1 reporting, 1 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (5 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2024-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-10-01 | 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 Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2018-11-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2017-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-03-19 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
The 12 most recent 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.
Horizon MHP: frequently asked questions
Who runs Horizon MHP?
Horizon MHP (PWSID MO5048047) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Horizon MHP serve?
Horizon MHP reports serving 68 people through 23 service connections in Stone County, Missouri.
Where does Horizon MHP 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 Horizon MHP have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2024. 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 Horizon MHP'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. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Horizon MHP's water quality report?
As a community water system, Horizon MHP 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, “Horizon MHP, PWSID MO5048047, Missouri”, https://aquacensus.com/water-systems/missouri/horizon-mhp-mo5048047 (data as of October 1, 2026).