Public water system · TX2200075
ActiveCity of Southlake
At a glance
City of Southlake (PWSID TX2200075) is an active community water system in Tarrant County, Texas. It reports serving 31,576 people through 11,406 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; 1 is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
31,576
Service connections
11,406
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does City of Southlake compare with other water systems in Tarrant County?
By EPA's size categories, City of Southlake is a large system (10,001 to 100,000 people). Tarrant County has 108 active public water systems. Its population served is about 60% above the county average of 19,687 people per system, and accounts for 1.5% of the 2,126,239 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 Southlake is about 4.7 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 Southlake?
EPA lists City of Southlake 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. 41 of the 108 active systems in Tarrant County (38%) are also owned by a local government.
Does City of Southlake have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in July 2025. The violations listed here began between July 1992 and July 2025. By type: 2 public notice, recordkeeping or other, 1 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence 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 |
|---|---|---|---|---|
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2016-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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 Southlake: frequently asked questions
Who runs City of Southlake?
City of Southlake (PWSID TX2200075) 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 Southlake serve?
City of Southlake reports serving 31,576 people through 11,406 service connections in Tarrant County, Texas.
Where does City of Southlake 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 Southlake have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in July 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 City of Southlake'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; 1 is health-based, and the most recent began in July 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 City of Southlake's water quality report?
As a community water system, City of Southlake 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 Tarrant County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Fort Worth | Tarrant | 955,900 | Community | Surface water |
| City of Arlington | Tarrant | 413,955 | Community | Surface water |
| City of Mansfield | Tarrant | 89,227 | Community | Surface water |
| City of North Richland Hills | Tarrant | 74,859 | Community | Purchased surface water |
| City of Euless | Tarrant | 61,601 | Community | Purchased surface water |
| City of Grapevine | Tarrant | 52,346 | Community | Surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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 Southlake, PWSID TX2200075, Texas”, https://aquacensus.com/water-systems/texas/city-of-southlake-tx2200075 (data as of October 1, 2026).