Marylhurst, OR Water Safety: 66/100 (2026)
1 ZIP code · 1 water system · Updated 2026-07-19
ZipCheckup grade for Marylhurst: C.
A mixed picture - some signals here are worth your attention.
Compared to top-scoring cities in OR, Marylhurst lands in the middle tier - some water systems meet standards cleanly, others carry documented violations, and performance can vary significantly across service areas.
How Marylhurst Compares
Data: EPA SDWIS Last verified: 2026-07-19
Water Systems Serving Marylhurst
Most residential addresses in Marylhurst, OR are served by a single water utility - the dominant system among the 1 provider tracked in federal data.
- C
Overview
We track water quality and home safety data for 1 ZIP code in Marylhurst, Oregon, covering 1 community water system serving approximately 40,000 people.
No EPA violations are recorded for the tracked water systems in Marylhurst as of the latest reporting period.
Home Safety Score
Average Home Safety Score for Marylhurst: C (66/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Marylhurst water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Marylhurst
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 97036 | C | LAKE OSWEGO MUNICIPAL WATER | 40,000 |
All ZIP Codes in Marylhurst
- 97036 [C]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Marylhurst
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What You Can Do in Marylhurst
- Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Marylhurst, OR