Green Bay, WI: 5 Health Violations - Home Safety 81/100
12 ZIP codes · 11 water systems · Updated
ZipCheckup grade for Green Bay: B.
This ZIP looks solid, with a few items worth a quick check.
Your top priority: consider a certified water filter (5 health violations on record). NSF certified filters →
How does Green Bay tap water hold up under EPA scrutiny? Above average for WI - documented violations are uncommon and the safety grade reflects a clean overall record.
How Green Bay Compares
Data: EPA SDWIS
Water Quality Map: Green Bay, WI
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of Home Safety grades across Green Bay.
Green Bay Water: The Quick Version
- Your city's water systems recorded 22 violations in the past 5 years.
- Average lead level: 0.0038 mg/L.
- Estimated remediation: $1,400 per household.
- CDC health risk index: 12.63 - above typical levels.
Water Systems Serving Green Bay
3 independent water providers serve Green Bay, WI - 11 systems appear in federal records.
- B
- B
- B
Overview
We track home safety data for 12 ZIP codes in Green Bay, Wisconsin, covering 11 community water systems serving approximately 188,379 people. The EPA snapshots used for this build directly map water systems to 7 of 12 ZIP codes.
7 of 7 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 5 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Green Bay: B (81/100)
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
Green Bay water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0038 mg/L (EPA action level: 0.015 mg/L)
- 0 of 7 ZIP codes with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 12 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 8 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 7 | 3 |
| Stage 2 DBP Rule | Treatment Technique | 7 | 5 |
| Lead and Copper Rule | Treatment Technique | 7 | 5 |
| Consumer Confidence Report Rule | Reporting | 7 | 4 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 54311 | B | 10 | 2 | Green Bay Waterworks |
| 54313 | B | 10 | 2 | Howard Waterworks |
| 54302 | B | 4 | 0 | Green Bay Waterworks |
| 54303 | B | 3 | 2 | Green Bay Waterworks |
| 54301 | B | 2 | 1 | Green Bay Waterworks |
| 54307 | — | 2 | 1 | Allouez Waterworks |
| 54304 | B | 1 | 0 | Green Bay Waterworks |
All ZIP Codes in Green Bay
- 54301 [B] - 2 violations ⚠
- 54302 [B] - 4 violations
- 54303 [B] - 3 violations ⚠
- 54304 [B] - 1 violation
- 54305
- 54306
- 54307 - 2 violations ⚠
- 54308
- 54311 [B] - 10 violations ⚠
- 54313 [B] - 10 violations ⚠
- 54324
- 54344
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.
CDC Health Data for Green Bay
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
Key Contaminants Detected in Green Bay
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Green Bay: Remediation Cost in Perspective
For most homeowners in Green Bay, the estimated cost of water and safety remediation represents a proportionally modest share of what properties are worth - placing this area in the lower tier of the remediation share scale.
Remediation costs in Green Bay are relatively low compared to home values. The $617–$2,450 estimated range is a small fraction of median property value. Home values are 11% below the Wisconsin average.
Protecting Children from Lead in Green Bay
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 Green Bay 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.
Historical Flood-Claim Evidence for Green Bay
Historical NFIP data for Green Bay contains 323 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,421. Among ZIP codes with claim records, 71% 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. The <strong>$1,400</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
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 Green Bay, WI