WILLIAMSON COUNTY MUD 11
Austin, TX · 4,248 served
WILLIAMSON COUNTY MUD 11 serves 4,248 people in Austin, TX. It has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
1
Currently unaddressed
0
Overall score
98/100
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
- Community water system
- Water source
- Surface water purchased from another system
- Ownership
- Local government
- Service connections
- 1,416
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Is Austin, TX tap water safe to drink?
WILLIAMSON COUNTY MUD 11 has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Does WILLIAMSON COUNTY MUD 11 have lead in its water?
The most recent 90th-percentile lead sample is 5 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in WILLIAMSON COUNTY MUD 11'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