Walled Lake, MI: 2 Violations — 74/100 (2026)
2 ZIP codes · 5 water systems · Updated 2026-06-03
Tap water monitoring data for Walled Lake shows a consistently clean picture in MI — few violations on record, compliance well above the median.
How Walled Lake Compares
Data: EPA SDWIS Last verified: 2026-06-03
Walled Lake Water: The Quick Version
- Your city's water systems recorded 2 violations in the past 5 years.
- Estimated remediation: $1,300 per household.
- CDC health risk index: 11.75.
Water Systems Serving Walled Lake
Federal drinking water records identify 5 systems in Walled Lake, MI. The leading 3 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations — so service conditions are not uniform city-wide.
Overview
We track water quality and home safety data for 2 ZIP codes in Walled Lake, Michigan (population ~24,118), covering 5 community water systems serving approximately 91,870 people region-wide.
2 of 2 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Walled Lake: B (74/100)
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
Walled Lake water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Walled Lake
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 2 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 | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 48390 | B | 1 | 0 | City of Walled Lake, |
| 48391 | B | 1 | 0 | City of Walled Lake, |
All ZIP Codes in Walled Lake
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.
CDC Health Data for Walled Lake
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 Walled Lake
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Walled Lake: Remediation Cost in Perspective
Remediation costs in Walled Lake are small relative to typical property values — the cost-to-value ratio here is favorable.
Remediation costs in Walled Lake are relatively low compared to home values. The $600–$2,050 estimated range is a small fraction of median property value. Home values are 41% above the Michigan average.
Climate-Related Water Risk for Walled Lake
Multiple flood events have been recorded for Walled Lake through the NFIP — 2 claims in total, with 50% of ZIP codes in FEMA-designated zones — pointing to a flood exposure profile that merits inclusion in a water quality assessment without reaching high-severity planning territory.
Walled Lake has a moderate flood history with 2 FEMA claims. 50% 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>$1,300</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 Walled Lake, MI