Public water system · TX0610224
ActiveOld Stony Estates
At a glance
Old Stony Estates (PWSID TX0610224) is an active community water system in Denton County, Texas. It reports serving 54 people through 18 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
54
Service connections
18
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Old Stony Estates compare with other water systems in Denton County?
By EPA's size categories, Old Stony Estates is a very small system (500 people or fewer). Denton County has 88 active public water systems. Its population served is well below the county average of 9,202 people per system, and accounts for less than 0.1% of the 809,752 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active community water system reports serving 6,703 people, so Old Stony 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. Texas has 4,594 active community water systems, 65% of the state's 7,078 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 5,215 Texas systems (74%) list groundwater as their primary source.
Who owns and regulates Old Stony Estates?
EPA lists Old Stony Estates as privately owned. The TX state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 44 of the 88 active systems in Denton County (50%) are also privately owned.
Does Old Stony Estates have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2025. The violations listed here began between January 2023 and October 2025. By type: 1 monitoring and reporting and 1 monitoring. The contaminants or rules involved are Chlorine and Revised Total Coliform Rule. EPA lists 2 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 |
|---|---|---|---|---|
| 2025-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2023-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 2 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.
Old Stony Estates: frequently asked questions
Who runs Old Stony Estates?
Old Stony Estates (PWSID TX0610224) is a community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Old Stony Estates serve?
Old Stony Estates reports serving 54 people through 18 service connections in Denton County, Texas.
Where does Old Stony 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 Old Stony Estates have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 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 Old Stony 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 2 violations for this system; none is health-based, and the most recent began in October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Old Stony Estates' water quality report?
As a community water system, Old Stony 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 Denton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Denton | Denton | 150,037 | Community | Surface water |
| City of Lewisville | Denton | 140,880 | Community | Surface water |
| Mustang Sud | Denton | 110,826 | Community | Purchased surface water |
| Town of Flower Mound | Denton | 80,000 | Community | Purchased surface water |
| City of the Colony | Denton | 45,367 | Community | Purchased surface water |
| Town of Little Elm | Denton | 41,000 | Community | Purchased surface water |
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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, “Old Stony Estates, PWSID TX0610224, Texas”, https://aquacensus.com/water-systems/texas/old-stony-estates-tx0610224 (data as of October 1, 2026).