CITY REPORT OH

College Corner, OH: High Radon Risk - Home Safety 67/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for College Corner: C.

A mixed picture - some signals here are worth your attention.

The systems supplying College Corner vary in performance across OH benchmarks - most meet minimum federal standards, but documented violations in select areas are on record.

How College Corner Compares

College Corner67/100
Ohio avg60/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
C · 67
Avg Safety Score
Zone 1
Radon Risk (High)
$171K
Median Home Value
$3,800
Est. Remediation (2.2% of home value)

What You Should Know About College Corner Water

  • Average lead level: 0.0013 mg/L.
  • Homes built before 1986: 88% - older plumbing may contain lead solder.
  • Estimated remediation: $3,800 per household.
  • CDC health risk index: 14.81 - above typical levels.

Who Supplies Your Water in College Corner

Supply infrastructure in College Corner, OH runs through a single dominant provider - the main entity among 1 tracked system through which rate decisions, infrastructure work, and federal compliance are managed.

Overview

We track home safety data for 1 ZIP code in College Corner, Ohio (population ~666), covering 1 community water system serving approximately 42,856 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for College Corner: C (67/100)

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

College Corner water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0013 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 1 (High Risk)

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

Areas with No Violations

ZIP Code Safety Score System Population
45003 C Southwest Regional Water District 42,856

All ZIP Codes in College Corner

Data Sources

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

Health Outcomes in College Corner

10.9%
Asthma (US: 9.8%)
13.4%
Diabetes (US: 10.4%)
17.9%
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 10.9% ↑
Diabetes 13.4% ↑
Mental Health 17.9% ↑

Vertical line = national average. Above national · Below national

Housing & Infrastructure in College Corner

1956
Median Build Year
88%
Built Before 1986
58%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 88% 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

The character of College Corner's housing stock is one of deep historical layering - a median build year of 1956 signals a city built largely before the plumbing era changes of 1986 and 1970. Lead-soldered copper joints and, in the oldest properties, lead service lines are commonly present in this inventory. That context shapes what individual water testing may reveal, particularly in neighborhoods where the oldest housing is concentrated.

1956
Median Year Built
88%
Pre-1986 (Lead Paint Risk)
58%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (58%) 1970–1986 (30%) Post-1986 (12%)

Over half of homes in College Corner 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.

Cost Context: What Remediation Means for College Corner Homeowners

When the numbers for College Corner are taken together, the remediation share is clearly in the elevated category - most homeowners here are weighing a commitment that extends beyond routine property upkeep, and the practical value of documenting scope early, prioritizing by urgency, and mapping costs against the household budget is proportionally higher at this tier.

Median Home Value
$170,600
Est. Remediation
$3,800
Remediation as % of home value 2.2%

At 2.2% of home value, remediation costs in College Corner represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $2,450–$5,400. Home values here are 7% below the Ohio average.

Lead Exposure Risk for Children in College Corner

88%
Homes Built Before 1986
0.0013
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.

Older interior plumbing shapes the local picture: 88% of College Corner homes predate the federal solder ban, and aggregate sampling either approaches or crosses the action benchmark. That mix makes a single-home draw a standard pre-purchase or pre-occupancy step.

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

Historical NFIP Claim Context in College Corner

1
Total FEMA Flood Claims
$46,294
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for College Corner contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $46,294. 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>$3,800</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.

What You Can Do in College Corner

  1. Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
  3. Check your home's plumbing. With 88% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for College Corner, OH?
College Corner has an average Home Safety Score of 67/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
Does College Corner water have lead?
The average 90th-percentile lead level in College Corner is 0.0013 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 does College Corner compare to Ohio average?
College Corner has an average Home Safety Score of 67/100, which is above the Ohio state average of 60/100 for the same model series.
How many water systems serve College Corner?
College Corner is served by 1 public water system across 1 ZIP code, serving approximately 666 people.
How much does it cost to fix water issues in College Corner?
Estimated remediation costs in College Corner average $3,800 per household, ranging from $2,450 to $5,400. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesOhio → College Corner, OH

How to cite this page

APA ZipCheckup. (2026). College Corner, OH: High Radon Risk - Home Safety 67/100. https://zipcheckup.com/cities/oh/college-corner/
BibTeX
@misc{zipcheckup-cities-oh-college-corner,
  author = {{ZipCheckup}},
  title  = {{College Corner, OH: High Radon Risk - Home Safety 67/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/oh/college-corner/}
}

Page version: August 2026.

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