Tumwater, WA: 7 Health Violations — 77/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
Across Tumwater, EPA monitoring data shows low violation rates and healthy safety margins — a pattern that places the city well above WA's average for drinking water compliance across recent reporting cycles.
How Tumwater Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Tumwater Residents
- Your city's water systems recorded 8 violations in the past 5 years.
- Average lead level: 0.008 mg/L.
- Estimated remediation: $600 per household.
- CDC health risk index: 11.82.
Tumwater's Water Providers
Water delivery in Tumwater, WA is handled by 3 utilities rather than a single system — drawn from 4 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track water quality and home safety data for 1 ZIP code in Tumwater, Washington, covering 4 community water systems serving approximately 67,307 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 7 health-based violations documented.
Home Safety Score
Average Home Safety Score for Tumwater: B (77/100)
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
Tumwater water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0080 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 |
|---|---|---|---|
| E. coli | Microbiological | 14 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98511 | B | 8 | 7 | City of Tumwater |
All ZIP Codes in Tumwater
- 98511 [B] — 8 violations ⚠
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.
Tumwater 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 Tumwater's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Tumwater: 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.
Lead risk in Tumwater appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Tumwater, WA