STANISLAUS UNION SCHOOL DIST
Modesto, CA · 390 served
STANISLAUS UNION SCHOOL DIST serves 390 people in Modesto, CA. 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)
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
- Local government
- Service connections
- 5
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Is Modesto, CA tap water safe to drink?
STANISLAUS UNION SCHOOL DIST has 0 health-based violations in the last 5 years. TapGraded has not yet graded this system.
Does STANISLAUS UNION SCHOOL DIST 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 STANISLAUS UNION SCHOOL DIST'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