Silvana, WA Water Safety: 65/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Silvana shows moderate tap water quality for WA — some areas carry documented EPA violations while others meet standards without issues.
How Silvana Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Silvana Water
- Estimated remediation: $1,200 per household.
- CDC health risk index: 10.74.
Who Supplies Your Water in Silvana
Consolidated water delivery characterizes Silvana, WA: among 1 system in federal records, one utility holds the dominant service position — carrying the rate-setting authority, the infrastructure obligations, and the EPA reporting burden for most residential addresses.
Overview
We track water quality and home safety data for 1 ZIP code in Silvana, Washington, covering 1 community water system serving approximately 13,785 people.
No EPA violations recorded across any ZIP codes in Silvana — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Silvana: C (65/100)
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
Silvana water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Silvana
- 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 |
|---|---|---|---|
| 98287 | C | STANWOOD WATER DEPT CITY OF | 13,785 |
All ZIP Codes in Silvana
- 98287 [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.
Health Outcomes in Silvana
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
Flood & Climate Risk in Silvana
A moderate NFIP record for Silvana — 19 insurance claims paired with 100% of ZIP codes in FEMA flood zones — points to a flood history where water-quality pathways have likely been periodically relevant.
Silvana has a moderate flood history with 19 FEMA claims averaging $10,679 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,200</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Silvana
- 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 Silvana, WA