Granite Falls, WA: 1 Violation — 83/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
The water systems supplying Granite Falls show a track record of above-average compliance with federal standards — consistently among the better performers in WA.
How Granite Falls Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Granite Falls Residents
- Your city's water systems recorded 1 violation in the past 5 years.
- Average lead level: 0.003 mg/L.
- Homes built before 1986: 39% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 10.74.
Granite Falls's Water Providers
3 water systems are tracked federally in Granite Falls, WA. The top 3 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
Overview
We track water quality and home safety data for 1 ZIP code in Granite Falls, Washington (population ~10,487), covering 3 community water systems serving approximately 87,408 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 Granite Falls: B (83/100)
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
Granite Falls water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0030 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98252 | B | 1 | 0 | City of Granite Falls |
All ZIP Codes in Granite Falls
- 98252 [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.
Granite Falls 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 Granite Falls's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Granite Falls Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Over the decades, Granite Falls accumulated housing from multiple construction periods. The median build year of 1997 places the midpoint of that stock near the 1986 threshold when lead solder in plumbing became federally prohibited — leaving a sizable share of homes on each side of that safety line.
Most homes in Granite Falls were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Granite Falls
Remediation costs in Granite Falls are small relative to typical property values — the cost-to-value ratio here is favorable.
Remediation costs in Granite Falls are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 5% above the Washington average.
Granite Falls: 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.
39% of Granite Falls housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark — household-level confirmation through a draw-test kit fits the local picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Granite Falls: Flood History & Water Damage Risk
FEMA data shows 100% of Granite Falls's ZIP codes mapped into designated flood zones, paired with an NFIP record of 133 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
Granite Falls has a moderate flood history with 133 FEMA claims averaging $14,493 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 Granite Falls, WA