CITY REPORT MI 1 HEALTH VIOLATIONS

Corunna, MI: 4 Violations - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$164K
Median Home Value
$1,600
Est. Remediation (1.0% of home value)

Corunna Water: The Quick Version

  • Your city's water systems recorded 4 violations in the past 5 years.
  • Average lead level: 0.009 mg/L.
  • Homes built before 1986: 80% - older plumbing may contain lead solder.
  • Estimated remediation: $1,600 per household.
  • CDC health risk index: 14.53 - above typical levels.

Water Systems Serving Corunna

Residential addresses in Corunna, MI are served by 2 primary water providers out of 2 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.

Overview

We track home safety data for 1 ZIP code in Corunna, Michigan (population ~5,451), covering 2 community water systems serving approximately 18,381 people region-wide. 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. 1 health-based violation appear in the available health breakdown.

Water Sources

Corunna water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0090 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

Dominant radon zone: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Total Coliform Microbiological 2 1
Consumer Confidence Report Rule Reporting 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
48817 4 1 City of Corunna,

All ZIP Codes in Corunna

  • 48817 - 4 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Corunna

11.6%
Asthma (US: 9.8%)
12.5%
Diabetes (US: 10.4%)
18.6%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11.6% ↑
Diabetes 12.5% ↑
Mental Health 18.6% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Corunna

Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 2 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Total Coliform 2 violations
Microbiological
Indicates possible pathogenic contamination

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Corunna's Housing Stock?

1961
Median Build Year
80%
Built Before 1986
37%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 80% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Viewed through the lens of construction era, Corunna is predominantly an older city - a median build year of 1961 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.

1961
Median Year Built
80%
Pre-1986 (Lead Paint Risk)
37%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (37%) 1970–1986 (43%) Post-1986 (20%)

Over half of homes in Corunna were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Corunna: Remediation Cost in Perspective

How much of a Corunna home's value does documented remediation represent? A small fraction - the equity share here is in the low tier, and from a household financial perspective, most property owners are considering a commitment that fits comfortably within standard planning rather than a decision that rises to the level of a material budget event or significant equity consideration.

Median Home Value
$164,200
Est. Remediation
$1,600
Remediation as % of home value 1.0%

Remediation costs in Corunna are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 20% below the Michigan average.

Protecting Children from Lead in Corunna

80%
Homes Built Before 1986
0.009
mg/L Avg Lead (Limit: 0.015)

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.

Pulling a tap sample fills the gap that utility data cannot close, particularly here where 80% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Corunna.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Corunna

7
Total FEMA Flood Claims
$2,373
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Corunna contains 7 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $2,373. 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. The <strong>$1,600</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.

Frequently Asked Questions

How many water violations does Corunna have?
Corunna water systems have a total of 4 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
Does Corunna water have lead?
The average 90th-percentile lead level in Corunna is 0.009 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Corunna?
Corunna is served by 2 public water systems across 1 ZIP code, serving approximately 5,451 people.
How much does it cost to fix water issues in Corunna?
Estimated remediation costs in Corunna average $1,600 per household, ranging from $800 to $2,600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMichigan → Corunna, MI

How to cite this page

APA ZipCheckup. (2026). Corunna, MI: 4 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/mi/corunna/
BibTeX
@misc{zipcheckup-cities-mi-corunna,
  author = {{ZipCheckup}},
  title  = {{Corunna, MI: 4 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mi/corunna/}
}

Page version: August 2026.

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