Public water system · TX1630021
ActiveYancey WSC
At a glance
Yancey WSC (PWSID TX1630021) is an active community water system in Medina County, Texas. It reports serving 12,186 people through 4,055 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
12,186
Service connections
4,055
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Yancey WSC compare with other water systems in Medina County?
By EPA's size categories, Yancey WSC is a large system (10,001 to 100,000 people). Medina County has 32 active public water systems, and Yancey WSC is the 2nd-largest of them by population served. Its population served is about 4.4 times the county average of 2,764 people per system, and accounts for 14% of the 88,450 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 Yancey WSC is about 82% above 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 Yancey WSC?
EPA lists Yancey WSC 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. 20 of the 32 active systems in Medina County (63%) are also owned by a local government.
Does Yancey WSC have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2009. The violations listed here began between February 1992 and October 2009. By type: 2 contaminant level above the legal limit, 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Di(2-ethylhexyl) phthalate (2 of them). EPA lists 3 as archived and 2 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. 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 |
|---|---|---|---|---|
| 2009-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Di(2-ethylhexyl) phthalatecode 2039 | Yes | Resolved |
| 2009-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Di(2-ethylhexyl) phthalatecode 2039 | Yes | Resolved |
| 1992-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Archived |
| 1992-02-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 5 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.
Yancey WSC: frequently asked questions
Who runs Yancey WSC?
Yancey WSC (PWSID TX1630021) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Yancey WSC serve?
Yancey WSC reports serving 12,186 people through 4,055 service connections in Medina County, Texas.
Where does Yancey WSC 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 Yancey WSC have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2009. 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 Yancey WSC'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 5 violations for this system; 2 are health-based, and the most recent began in October 2009. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Yancey WSC's water quality report?
As a community water system, Yancey WSC 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 Medina County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Benton City WSC | Medina | 32,000 | Community | Groundwater |
| City of Hondo | Medina | 11,044 | Community | Groundwater |
| East Medina County Sud Unit 1 | Medina | 6,153 | Community | Groundwater |
| City of Devine | Medina | 4,335 | Community | Groundwater |
| City of Castroville | Medina | 3,913 | Community | Groundwater |
| East Medina County Sud Unit 2 | Medina | 2,505 | 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, “Yancey WSC, PWSID TX1630021, Texas”, https://aquacensus.com/water-systems/texas/yancey-wsc-tx1630021 (data as of October 1, 2026).