Public water system · TX0700005
ActiveCity of Midlothian
At a glance
City of Midlothian (PWSID TX0700005) is an active community water system in Ellis County, Texas. It reports serving 27,699 people through 131,276 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, 3 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
27,699
Service connections
131,276
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Midlothian compare with other water systems in Ellis County?
By EPA's size categories, City of Midlothian is a large system (10,001 to 100,000 people). Ellis County has 26 active public water systems, and City of Midlothian is the 3rd-largest of them by population served. Its population served is about 189% above the county average of 9,591 people per system, and accounts for 11% of the 249,358 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 Midlothian is about 4.1 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. 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 City of Midlothian?
EPA lists City of Midlothian 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. 21 of the 26 active systems in Ellis County (81%) are also owned by a local government.
Does City of Midlothian have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2025. The violations listed here began between February 1993 and July 2025. By type: 5 monitoring and reporting, 3 public notice, recordkeeping or other, 3 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Chlorite (3 of them). EPA lists 8 as resolved and 4 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2022-02-07 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-05-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloritecode 1009 | No | Resolved |
| 2017-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Chloritecode 1009 | Yes | Resolved |
| 2017-11-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloritecode 1009 | No | Resolved |
| 2016-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Archived |
| 2007-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2004-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1993-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-05-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
City of Midlothian: frequently asked questions
Who runs City of Midlothian?
City of Midlothian (PWSID TX0700005) 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 Midlothian serve?
City of Midlothian reports serving 27,699 people through 131,276 service connections in Ellis County, Texas.
Where does City of Midlothian 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 City of Midlothian have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are 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 Midlothian'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, 3 are 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 Midlothian's water quality report?
As a community water system, City of Midlothian 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 Ellis County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Waxahachie | Ellis | 50,814 | Community | Surface water |
| Rockett Sud | Ellis | 46,614 | Community | Purchased surface water |
| City of Ennis | Ellis | 24,891 | Community | Surface water |
| Mountain Peak Sud | Ellis | 23,988 | Community | Purchased surface water |
| Sardis Lone Elm WSC | Ellis | 20,736 | Community | Purchased surface water |
| City of Red Oak | Ellis | 18,577 | Community | Purchased 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 Midlothian, PWSID TX0700005, Texas”, https://aquacensus.com/water-systems/texas/city-of-midlothian-tx0700005 (data as of October 1, 2026).