Public water system · TX2050070
ActiveSan Patricio County MUD 1
At a glance
San Patricio County MUD 1 (PWSID TX2050070) is an active community water system in San Patricio County, Texas. It reports serving 540 people through 180 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
540
Service connections
180
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does San Patricio County MUD 1 compare with other water systems in San Patricio County?
By EPA's size categories, San Patricio County MUD 1 is a small system (501 to 3,300 people). San Patricio County has 20 active public water systems. Its population served is well below the county average of 3,470 people per system, and accounts for 0.8% of the 69,407 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 San Patricio County MUD 1 is well below 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 San Patricio County MUD 1?
EPA lists San Patricio County MUD 1 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. 14 of the 20 active systems in San Patricio County (70%) are also owned by a local government.
Does San Patricio County MUD 1 have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2018. The violations listed here began between January 2018 and October 2018. By type: 11 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Public Notice, trans-1,2-Dichloroethylene, 1,2,4-Trichlorobenzene and 1,1,2-Trichloroethane. 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 |
|---|---|---|---|---|
| 2018-10-25 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | 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.
San Patricio County MUD 1: frequently asked questions
Who runs San Patricio County MUD 1?
San Patricio County MUD 1 (PWSID TX2050070) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does San Patricio County MUD 1 serve?
San Patricio County MUD 1 reports serving 540 people through 180 service connections in San Patricio County, Texas.
Where does San Patricio County MUD 1 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 San Patricio County MUD 1 have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2018. 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 San Patricio County MUD 1'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, none is health-based, and the most recent began in October 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find San Patricio County MUD 1's water quality report?
As a community water system, San Patricio County MUD 1 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 San Patricio County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Portland | San Patricio | 22,933 | Community | Purchased surface water |
| City of Ingleside | San Patricio | 10,106 | Community | Purchased surface water |
| City of Aransas Pass | San Patricio | 8,088 | Community | Purchased surface water |
| City of Sinton | San Patricio | 5,505 | Community | Groundwater |
| Rincon WSC | San Patricio | 5,034 | Community | Purchased surface water |
| City of Mathis | San Patricio | 5,001 | Community | 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, “San Patricio County MUD 1, PWSID TX2050070, Texas”, https://aquacensus.com/water-systems/texas/san-patricio-county-mud-1-tx2050070 (data as of October 1, 2026).