Snoqualmie Pass, WA: 1 Violation — 81/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-04
Water utilities in Snoqualmie Pass have maintained a consistent compliance record over recent monitoring periods — the city's above-average grade in WA reflects low violation rates and no systemic health concerns flagged in current data.
How Snoqualmie Pass Compares
Data: EPA SDWIS Last verified: 2026-06-04
Key Facts for Snoqualmie Pass Residents
- Your city's water systems recorded 1 violation in the past 5 years.
- Average lead level: 0.004 mg/L.
- Homes built before 1986: 55% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 11.89.
Snoqualmie Pass's Water Providers
Structurally, Snoqualmie Pass, WA's water supply is divided. Federal data identifies 2 water systems in the area, with 2 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.
Overview
We track water quality and home safety data for 1 ZIP code in Snoqualmie Pass, Washington (population ~442), covering 2 community water systems serving approximately 12,405 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Snoqualmie Pass: B (81/100)
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
Snoqualmie Pass water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0040 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Barium | Inorganic | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98068 | B | 1 | 0 | Sallal Water Association Inc. |
All ZIP Codes in Snoqualmie Pass
- 98068 [B] — 1 violation
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.
Snoqualmie Pass Community Health Snapshot
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's in Snoqualmie Pass's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Snoqualmie Pass Infrastructure Age
With 55% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Heavily weighted toward older construction, Snoqualmie Pass's housing stock carries a median build year of 1971. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Snoqualmie Pass were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Snoqualmie Pass
At current valuations, Snoqualmie Pass sits in the low remediation-share tier — the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Snoqualmie Pass are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 63% above the Washington average.
Snoqualmie Pass: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 55% of the Snoqualmie Pass inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Snoqualmie Pass: Flood History & Water Damage Risk
Within the NFIP's national dataset, Snoqualmie Pass falls in moderate-exposure territory — 1 documented incident spanning multiple decades, with 100% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Snoqualmie Pass has a moderate flood history with 1 FEMA claims averaging $3,116 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.
Deep Dive Reports
Detailed analysis for Snoqualmie Pass, WA