Public water system · TX0910037
ActiveRra Preston Shores Water System
At a glance
Rra Preston Shores Water System (PWSID TX0910037) is an active community water system in Grayson County, Texas. It reports serving 2,277 people through 759 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in August 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,277
Service connections
759
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Rra Preston Shores Water System compare with other water systems in Grayson County?
By EPA's size categories, Rra Preston Shores Water System is a small system (501 to 3,300 people). Grayson County has 50 active public water systems. Its population served is about 29% below the county average of 3,197 people per system, and accounts for 1.4% of the 159,854 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 Rra Preston Shores Water System is about 66% 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 328 Texas systems (4.6%) list surface water as their primary source.
Who owns and regulates Rra Preston Shores Water System?
EPA lists Rra Preston Shores Water System as owned by a local government. 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. 29 of the 50 active systems in Grayson County (58%) are also owned by a local government.
Does Rra Preston Shores Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in August 2025. The violations listed here began between January 2022 and August 2025. By type: 10 contaminant level above the legal limit and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (9 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 |
|---|---|---|---|---|
| 2025-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Chloritecode 1009 | Yes | Resolved |
| 2024-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2022-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2022-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2022-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2022-01-06 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-01-06 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | 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.
Rra Preston Shores Water System: frequently asked questions
Who runs Rra Preston Shores Water System?
Rra Preston Shores Water System (PWSID TX0910037) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Rra Preston Shores Water System serve?
Rra Preston Shores Water System reports serving 2,277 people through 759 service connections in Grayson County, Texas.
Where does Rra Preston Shores Water System get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Rra Preston Shores Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in August 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 Rra Preston Shores Water System'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, 10 are health-based, and the most recent began in August 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 Rra Preston Shores Water System's water quality report?
As a community water system, Rra Preston Shores Water System 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 Grayson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Sherman | Grayson | 43,645 | Community | Surface water |
| City of Denison | Grayson | 27,500 | Community | Surface water |
| City of Van Alstyne | Grayson | 7,000 | Community | Purchased surface water |
| Two Way Sud | Grayson | 6,804 | Community | Groundwater |
| South Grayson Sud | Grayson | 6,750 | Community | Groundwater |
| City of Howe | Grayson | 4,548 | 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, “Rra Preston Shores Water System, PWSID TX0910037, Texas”, https://aquacensus.com/water-systems/texas/rra-preston-shores-water-system-tx0910037 (data as of October 1, 2026).