CITY REPORT NC 1 HEALTH VIOLATIONS

Mount Holly, NC - Home Safety Score unavailable

1 ZIP code · 5 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$273K
Median Home Value
$2,200
Est. Remediation (0.8% of home value)

Mount Holly Water: The Quick Version

  • Your city's water systems recorded 17 violations in the past 5 years.
  • Average lead level: 0.006 mg/L.
  • Homes built before 1986: 48% - older plumbing may contain lead solder.
  • Estimated remediation: $2,200 per household.
  • CDC health risk index: 13.43 - above typical levels.

Water Systems Serving Mount Holly

Residential addresses in Mount Holly, NC are served by 3 primary water providers out of 5 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 Mount Holly, North Carolina (population ~24,363), covering 5 community water systems serving approximately 42,435 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

Mount Holly water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0060 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
Surface Water Treatment Rule Treatment Technique 16 1
Stage 1 DBP Rule Treatment Technique 8 1
Haloacetic Acids (HAA5) Disinfection Byproducts 4 1
Stage 2 DBP Rule Treatment Technique 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
28120 17 1 City of Mount Holly,

All ZIP Codes in Mount Holly

  • 28120 - 17 violations ⚠

Data Sources

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

CDC Health Data for Mount Holly

11.1%
Asthma (US: 9.8%)
12.3%
Diabetes (US: 10.4%)
17.4%
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 11.1% ↑
Diabetes 12.3% ↑
Mental Health 17.4% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Mount Holly

Surface Water Treatment Rule 16 violations
Treatment Technique
Pathogens may not be adequately removed
Stage 1 DBP Rule 8 violations
Treatment Technique
Disinfection byproduct exposure risk
Haloacetic Acids (HAA5) 4 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure

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

How Old Is Mount Holly's Housing Stock?

1982
Median Build Year
48%
Built Before 1986
18%
Built Before 1970
Copper
Likely Pipe Material

With 48% 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

Over the decades, Mount Holly accumulated housing from multiple construction periods. The median build year of 1982 places the midpoint of that stock near the 1986 threshold when lead solder in plumbing became federally prohibited - leaving a sizable share of homes on each side of that safety line.

1982
Median Year Built
48%
Pre-1986 (Lead Paint Risk)
18%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (18%) 1970–1986 (30%) Post-1986 (52%)

Most homes in Mount Holly were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Mount Holly: Remediation Cost in Perspective

When estimated remediation is placed alongside median property values in Mount Holly, the resulting ratio is low - a finding consistent with a household financial perspective where documented issues can be addressed without a meaningful impact on overall equity position, making this market one of the more favorable contexts for remediation planning.

Median Home Value
$272,500
Est. Remediation
$2,200
Remediation as % of home value 0.8%

Remediation costs in Mount Holly are relatively low compared to home values. The $1,200–$3,300 estimated range is a small fraction of median property value. Home values are 16% above the North Carolina average.

Protecting Children from Lead in Mount Holly

48%
Homes Built Before 1986
0.006
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.

48% of Mount Holly housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark - household-level confirmation through a draw-test kit fits the local picture.

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

Historical Flood-Claim Evidence for Mount Holly

23
Total FEMA Flood Claims
$38,904
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Mount Holly contains 23 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $38,904. 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 <strong>$2,200</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 Mount Holly have?
Mount Holly water systems have a total of 17 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
Does Mount Holly water have lead?
The average 90th-percentile lead level in Mount Holly is 0.006 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 Mount Holly?
Mount Holly is served by 5 public water systems across 1 ZIP code, serving approximately 24,363 people.
How much does it cost to fix water issues in Mount Holly?
Estimated remediation costs in Mount Holly average $2,200 per household, ranging from $1,200 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesNorth Carolina → Mount Holly, NC

How to cite this page

APA ZipCheckup. (2026). Mount Holly, NC - Home Safety Score unavailable. https://zipcheckup.com/cities/nc/mount-holly/
BibTeX
@misc{zipcheckup-cities-nc-mount-holly,
  author = {{ZipCheckup}},
  title  = {{Mount Holly, NC - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/nc/mount-holly/}
}

Page version: August 2026.

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