SOUTHWEST ISD MAIN
San Antonio, TX · 5,364 served
SOUTHWEST ISD MAIN serves 5,364 people in San Antonio, TX. It has 0 health-based violations in the last 5 years. TapGraded has not yet graded this system.
Violation history (last 5 years)
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Lead (Lead and Copper Rule)
EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).
PFAS (UCMR5 occurrence data)
System details
- System type
- Non-transient non-community water system
- Water source
- Ground water
- Ownership
- Local government
- Service connections
- 17
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Is San Antonio, TX tap water safe to drink?
SOUTHWEST ISD MAIN has 0 health-based violations in the last 5 years. TapGraded has not yet graded this system.
Does SOUTHWEST ISD MAIN have lead in its water?
The most recent 90th-percentile lead sample is 0 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in SOUTHWEST ISD MAIN's water?
This system was tested under UCMR5 and no PFAS was detected above the reporting limit in the analytes we track.
Source: EPA SDWIS/ECHO · Data as of 2026Q2