Public water system · TX0150309
ActiveSouthwest Research Inst
At a glance
Southwest Research Inst (PWSID TX0150309) is an active non-transient non-community water system in Bexar County, Texas. It reports serving 2,700 people through 250 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,700
Service connections
250
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Southwest Research Inst compare with other water systems in Bexar County?
By EPA's size categories, Southwest Research Inst is a small system (501 to 3,300 people). Bexar County has 77 active public water systems. Its population served is well below the county average of 37,744 people per system, and accounts for less than 0.1% of the 2,906,298 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Southwest Research Inst is about 6.3 times that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Texas has 862 active non-transient non-community water systems, 12% 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 Southwest Research Inst?
EPA lists Southwest Research Inst as privately owned. 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. 50 of the 77 active systems in Bexar County (65%) are also privately owned.
Does Southwest Research Inst have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2014. By type: 1 monitoring and reporting. The contaminant or rule involved is Lead and Copper Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2014-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
The one violation in EPA's records.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.
Southwest Research Inst: frequently asked questions
Who runs Southwest Research Inst?
Southwest Research Inst (PWSID TX0150309) is a non-transient non-community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Southwest Research Inst serve?
Southwest Research Inst reports serving 2,700 people through 250 service connections in Bexar County, Texas.
Where does Southwest Research Inst 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 Southwest Research Inst have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2014. 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 Southwest Research Inst'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 one violation for this system; it is not health-based, and the most recent began in December 2014. For current results, consult EPA ECHO, or the TX state drinking water program.
Where can I find Southwest Research Inst's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Southwest Research Inst is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Bexar County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| San Antonio Water System | Bexar | 2,643,729 | Community | Purchased surface water |
| Jbsa Sam Houston | Bexar | 37,563 | Community | Groundwater |
| City of Converse | Bexar | 29,709 | Community | Purchased surface water |
| East Central Sud | Bexar | 26,137 | Community | Purchased surface water |
| Jbsa Lackland | Bexar | 20,907 | Community | Groundwater |
| City of Universal City | Bexar | 20,119 | Community | Groundwater |
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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, “Southwest Research Inst, PWSID TX0150309, Texas”, https://aquacensus.com/water-systems/texas/southwest-research-inst-tx0150309 (data as of October 1, 2026).