Bellevue, WA: 8 Violations - Home Safety 99/100
7 ZIP codes · 10 water systems · Updated
ZipCheckup grade for Bellevue: A.
Checked records flag no major concern; missing data is unknown.
Within Bellevue, WA, the available records add up to an upper-tier grade; that grade describes records, not the water at a given faucet.
How Bellevue Compares
Data: EPA SDWIS
Water Quality Map: Bellevue, WA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Bellevue score across all safety grades.
What You Should Know About Bellevue Water
- Your city's water systems recorded 8 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0019 mg/L.
- Homes built before 1986: 62% - older plumbing may contain lead solder.
- Health risk index (ZipCheckup composite of CDC data): 8.82.
Who Supplies Your Water in Bellevue
Because each listed system has its own federal record, violations at one of the 3 shown below do not apply to the others among the 10 tied to Bellevue, WA.
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Overview
We track home safety data for 7 ZIP codes in Bellevue, Washington (population ~156,110), covering 10 community water systems serving approximately 742,832 people region-wide. The EPA snapshots used for this build directly map water systems to 5 of 7 ZIP codes.
2 of 5 ZIP codes with a reported violation count in the available EPA record (40%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Home Safety Score
Average Home Safety Score for Bellevue: A (99/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Bellevue water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0019 mg/L (EPA action level: 0.015 mg/L)
- 0 of 4 ZIP codes with known status exceed the EPA lead action level
Radon Risk
7 of 7 ZIP records with known zones are in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Rule | Reporting | 4 | 2 |
| Revised Total Coliform Rule | Microbiological | 4 | 2 |
| Nitrate | Inorganic | 2 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98006 | A | 5 | 0 | City of Bellevue |
| 98004 | A | 3 | 0 | City of Bellevue |
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 98005 | A | City of Bellevue | 321,349 |
| 98007 | A | City of Bellevue | 321,349 |
| 98008 | A | City of Bellevue | 321,349 |
All ZIP Codes in Bellevue
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Health Outcomes in Bellevue
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Bellevue Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Bellevue
With 62% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Pre-1986 homes make up a large part of Bellevue's housing; median build year 1973.
Over half of homes in Bellevue were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Lead Exposure Risk for Children in Bellevue
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Bellevue
Historical NFIP data for Bellevue contains 77 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $19,438. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
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.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Bellevue, WA