Public water system · MO5253017
ActiveHer Loy Estates Subdivision
At a glance
Her Loy Estates Subdivision (PWSID MO5253017) is an active transient non-community water system in Stone County, Missouri. It reports serving 25 people through 7 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 6 violations for this system; 5 are health-based, and the most recent began in October 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
7
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Her Loy Estates Subdivision compare with other water systems in Stone County?
By EPA's size categories, Her Loy Estates Subdivision is a very small system (500 people or fewer). Stone County has 228 active public water systems. Its population served is well below the county average of 203 people per system, and accounts for less than 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 transient non-community water system reports serving 144 people, so Her Loy Estates Subdivision is well below 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 Her Loy Estates Subdivision?
EPA lists Her Loy Estates Subdivision 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 Her Loy Estates Subdivision have drinking water violations?
EPA's records list 6 violations for this system; 5 are health-based, and the most recent began in October 2014. The violations listed here began between August 2012 and October 2014. By type: 5 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2014-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-09-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2012-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 6 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.
Her Loy Estates Subdivision: frequently asked questions
Who runs Her Loy Estates Subdivision?
Her Loy Estates Subdivision (PWSID MO5253017) is a transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Her Loy Estates Subdivision serve?
Her Loy Estates Subdivision reports serving 25 people through 7 service connections in Stone County, Missouri.
Where does Her Loy Estates Subdivision 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 Her Loy Estates Subdivision have any drinking water violations?
EPA's records list 6 violations for this system; 5 are health-based, and the most recent began in October 2014. 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 Her Loy Estates Subdivision'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 6 violations for this system; 5 are health-based, and the most recent began in October 2014. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Her Loy Estates Subdivision's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Her Loy Estates Subdivision 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 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, “Her Loy Estates Subdivision, PWSID MO5253017, Missouri”, https://aquacensus.com/water-systems/missouri/her-loy-estates-subdivision-mo5253017 (data as of October 1, 2026).