Public water system · TX2050011
ActiveSan Patricio Mwd
At a glance
San Patricio Mwd (PWSID TX2050011) is an active community water system in San Patricio County, Texas. It reports serving 48 people through 39,914 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, none is health-based, and the most recent began in March 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
48
Service connections
39,914
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does San Patricio Mwd compare with other water systems in San Patricio County?
By EPA's size categories, San Patricio Mwd is a very small system (500 people or fewer). 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 less than 0.1% 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 Mwd 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. 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 San Patricio Mwd?
EPA lists San Patricio Mwd 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 Mwd have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2005. The violations listed here began between February 2003 and March 2005. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Surface Water Treatment Rule (7 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 |
|---|---|---|---|---|
| 2005-03-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2005-02-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2003-06-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2003-06-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2003-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2003-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2003-04-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2003-04-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2003-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2003-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2003-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | 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 Mwd: frequently asked questions
Who runs San Patricio Mwd?
San Patricio Mwd (PWSID TX2050011) 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 Mwd serve?
San Patricio Mwd reports serving 48 people through 39,914 service connections in San Patricio County, Texas.
Where does San Patricio Mwd 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 San Patricio Mwd 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 March 2005. 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 Mwd'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 March 2005. 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 Mwd's water quality report?
As a community water system, San Patricio Mwd 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 Mwd, PWSID TX2050011, Texas”, https://aquacensus.com/water-systems/texas/san-patricio-mwd-tx2050011 (data as of October 1, 2026).