Public water system · TX0570006

Active

City of Desoto

At a glance

City of Desoto (PWSID TX0570006) is an active community water system in Dallas County, Texas. It reports serving 57,999 people through 18,922 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

57,999

Service connections

18,922

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDTX0570006

System typeCommunity water system

Activity statusActive

Population served57,999

Service connections18,922

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyDallas County

How does City of Desoto compare with other water systems in Dallas County?

By EPA's size categories, City of Desoto is a large system (10,001 to 100,000 people). Dallas County has 35 active public water systems. Its population served is about 36% below the county average of 90,969 people per system, and accounts for 1.8% of the 3,183,922 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 Desoto is about 8.7 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 Desoto?

EPA lists City of Desoto 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. 31 of the 35 active systems in Dallas County (89%) are also owned by a local government.

Does City of Desoto have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2024. The violations listed here began between July 2007 and January 2024. By type: 6 monitoring and reporting, 4 public notice, recordkeeping or other, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Public Notice (4 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
2024-01-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2023-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitritecode 1041	No	Resolved
2022-12-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2015-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2012-10-10	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2012-06-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2010-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2008-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2008-10-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2008-03-10	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2007-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2007-07-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	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.

City of Desoto: frequently asked questions

Who runs City of Desoto?

City of Desoto (PWSID TX0570006) 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 Desoto serve?

City of Desoto reports serving 57,999 people through 18,922 service connections in Dallas County, Texas.

Where does City of Desoto 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 Desoto have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2024. 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 Desoto'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, one is health-based, and the most recent began in January 2024. 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 Desoto's water quality report?

As a community water system, City of Desoto 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 Dallas County

Water system	County	Population served	Type	Source
Dallas Water Utility	Dallas	1,356,479	Community	Surface water
City of Irving	Dallas	264,546	Community	Purchased surface water
City of Garland	Dallas	248,822	Community	Purchased surface water
City of Grand Prairie	Dallas	201,843	Community	Purchased surface water
Dallas Fort Worth International Airport	Dallas	177,673	Non-transient non-community	Purchased surface water
City of Mesquite	Dallas	152,020	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 Desoto, PWSID TX0570006, Texas”, https://aquacensus.com/water-systems/texas/city-of-desoto-tx0570006 (data as of October 1, 2026).