Cornelius, NC Home Safety: Home Safety 92/100
1 ZIP code · 2 water systems · Updated
ZipCheckup grade for Cornelius: A.
Checked records flag no major concern; missing data is unknown.
Within Cornelius, NC, the available records add up to an upper-tier grade; that grade describes records, not the water at a given faucet.
How Cornelius Compares
Data: EPA SDWIS
Cornelius Water: The Quick Version
- Homes built before 1986: 15% - older plumbing may contain lead solder.
- Estimated remediation: $500 per household.
- Health risk index (ZipCheckup composite of CDC data): 10.72.
Water Systems Serving Cornelius
Multiple utilities show up for Cornelius, NC: 2 are listed here out of 2 tracked federally.
- A
- A
Overview
We track home safety data for 1 ZIP code in Cornelius, North Carolina (population ~31,021), covering 2 community water systems serving approximately 1,164,051 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 Cornelius: A (92/100)
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
Cornelius water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (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 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 28031 | A | Charlotte Water | 1,163,701 |
All ZIP Codes in Cornelius
- 28031 [A]
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 Cornelius
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
How Old Is Cornelius'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
If your home in Cornelius predates 1986, testing the tap is the direct way to learn about lead; the median build year of 2008 cannot answer that for you.
Most homes in Cornelius 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.
Cornelius: Remediation Cost in Perspective
Measured against the median home value, the estimated cost of fixing the issues flagged for Cornelius lands in the lowest of the three tiers this page uses.
Estimated remediation costs in Cornelius 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 111% above the North Carolina average.
Protecting Children from Lead in Cornelius
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.
Several limits apply to the lead numbers for Cornelius. The figure shown is an average of 90th-percentile results from ZIP codes in the city, and it is below 0.010 mg/L; the federal action level of 0.015 mg/L applies to each water system's own 90th percentile, not to an average like this one, and being below it does not make water free of lead. About 15% of local homes were built before 1986. A test at the home's own tap shows its level, and a filter certified to NSF/ANSI 53 for lead reduction is an option if a test finds lead.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Cornelius
Historical NFIP data for Cornelius contains 21 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $16,162. 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 $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 Cornelius, NC