SAN LUIS CITY OF
San Luis, AZ · 39,705 served
SAN LUIS CITY OF serves 39,705 people in San Luis, AZ. It has 3 health-based violations in the last 5 years. TapGraded gives this system an F.
Score breakdown
Health-based violations (5y)
3
Monitoring violations (5y)
6
Currently unaddressed
1
Overall score
49/100
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
- Ground water
- Ownership
- Local government
- Service connections
- 6,100
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Is San Luis, AZ tap water safe to drink?
SAN LUIS CITY OF has 3 health-based violations in the last 5 years. TapGraded gives this system an F.
Does SAN LUIS CITY OF have lead in its water?
The most recent 90th-percentile lead sample is 1 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in SAN LUIS CITY OF'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