SOUTHWEST RESEARCH INST
San Antonio, TX · 2,700 served
SOUTHWEST RESEARCH INST serves 2,700 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)
No violations on record.
Get alerted when SOUTHWEST RESEARCH INST gets a violation
We'll only email you about this water system. Unsubscribe anytime.
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)
This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).
System details
- System type
- Non-transient non-community water system
- Water source
- Ground water
- Ownership
- Private
- Service connections
- 250
Worried about what's in your tap?
See which water filters are certified to remove the contaminants found in your area.
Find a filter that matches your waterFrequently asked questions
Is San Antonio, TX tap water safe to drink?
SOUTHWEST RESEARCH INST has 0 health-based violations in the last 5 years. TapGraded has not yet graded this system.
Does SOUTHWEST RESEARCH INST 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 RESEARCH INST's water?
This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).
Source: EPA SDWIS/ECHO · Data as of 2026Q2