South Lyon, MI - Home Safety Score unavailable
1 ZIP code · 5 water systems · Updated
Data: EPA SDWIS
South Lyon Water: The Quick Version
- Your city's water systems recorded 10 violations since 2021.
- Average of reported 90th-percentile lead results: 0.01 mg/L.
- Homes built before 1986: 35% - older plumbing may contain lead solder.
- Estimated remediation: $500 per household.
- Health risk index (ZipCheckup composite of CDC data): 12.16.
Water Systems Serving South Lyon
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 5 tied to South Lyon, MI.
Overview
We track home safety data for 1 ZIP code in South Lyon, Michigan, covering 5 community water systems serving approximately 37,303 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Water Sources
South Lyon water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0100 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 2.
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 |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 1 |
| Consumer Confidence Rule | Reporting | 4 | 1 |
| Arsenic | Inorganic | 2 | 1 |
| Nitrate | Inorganic | 2 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 48178 | — | 10 | 0 | City of South Lyon, |
All ZIP Codes in South Lyon
- 48178 - 10 violations recorded for mapped water systems
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 South Lyon
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
Key Contaminants Detected in South Lyon
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is South Lyon's Housing Stock?
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
Buyers and renters in South Lyon can ask a simple question of any home: was it built before 1986? The citywide median of 1995 will not answer it.
Most homes in South Lyon were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
South Lyon: Remediation Cost in Perspective
Estimated remediation for South Lyon is a small fraction of median property value - one percent or less - though the ratio does not describe any single household.
Estimated remediation costs in South Lyon can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 92% above the Michigan average.
Protecting Children from Lead in South Lyon
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.
CDC has identified no safe blood lead level in children, and lead in water can differ from one home to the next; in South Lyon, testing the water a child drinks is how to learn the lead level in that water, and a blood test is how to learn the child's level. About 35% of the city's homes date from before 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for South Lyon
Historical NFIP data for South Lyon contains 10 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $6,517. Among ZIP codes with claim records, 100% 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 $500 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 South Lyon, MI