Public water system · TX0430011
ActiveCity of Wylie
At a glance
City of Wylie (PWSID TX0430011) is an active community water system in Collin County, Texas. It reports serving 48,393 people through 16,131 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in December 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
48,393
Service connections
16,131
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does City of Wylie compare with other water systems in Collin County?
By EPA's size categories, City of Wylie is a large system (10,001 to 100,000 people). Collin County has 35 active public water systems, and City of Wylie is the 6th-largest of them by population served. Its population served is about 33% above the county average of 36,284 people per system, and accounts for 3.8% of the 1,269,941 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 City of Wylie is about 7.2 times 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 1,192 Texas systems (17%) list purchased surface water as their primary source.
Who owns and regulates City of Wylie?
EPA lists City of Wylie 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. 33 of the 35 active systems in Collin County (94%) are also owned by a local government.
Does City of Wylie have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in December 2013. The violations listed here began between July 1992 and December 2013. By type: 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2013-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1992-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 4 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.
City of Wylie: frequently asked questions
Who runs City of Wylie?
City of Wylie (PWSID TX0430011) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does City of Wylie serve?
City of Wylie reports serving 48,393 people through 16,131 service connections in Collin County, Texas.
Where does City of Wylie get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does City of Wylie have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in December 2013. 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 City of Wylie'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 4 violations for this system; none is health-based, and the most recent began in December 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find City of Wylie's water quality report?
As a community water system, City of Wylie 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 Collin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Plano | Collin | 292,059 | Community | Purchased surface water |
| City of Frisco | Collin | 231,910 | Community | Purchased surface water |
| City of Mckinney | Collin | 224,043 | Community | Purchased surface water |
| City of Allen | Collin | 113,746 | Community | Purchased surface water |
| City of Celina | Collin | 52,701 | Community | Purchased surface water |
| Town of Prosper | Collin | 42,598 | 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, “City of Wylie, PWSID TX0430011, Texas”, https://aquacensus.com/water-systems/texas/city-of-wylie-tx0430011 (data as of October 1, 2026).