WEST SLOPE WATER DISTRICT
Portland, OR · 11,000 served
WEST SLOPE WATER DISTRICT serves 11,000 people in Portland, OR. 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
- 3,234
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Is Portland, OR tap water safe to drink?
WEST SLOPE WATER DISTRICT has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Does WEST SLOPE WATER DISTRICT have lead in its water?
The most recent 90th-percentile lead sample is 4.9 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in WEST SLOPE WATER DISTRICT'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