CITY REPORT NC HEALTH VIOLATIONS: 1

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 Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$273K
Median Home Value
$300
Est. Remediation (0.1% of home value)

Mount Holly Water: The Quick Version

  • Your city's water systems recorded 17 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.006 mg/L.
  • Homes built before 1986: 48% - older plumbing may contain lead solder.
  • Estimated remediation: $300 per household.
  • Health risk index (ZipCheckup composite of CDC data): 13.43.

Water Systems Serving Mount Holly

Multiple utilities show up for Mount Holly, NC: 3 are listed here out of 5 tracked federally.

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 of reported 90th-percentile lead results: 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

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
Consumer Confidence Rule Reporting 16 1
Lead and Copper Rule Treatment Technique 8 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 4 1
Lead and Copper Rule Revisions Treatment Technique 4 1
Haloacetic Acids (HAA5) 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). County health indicators are shown for context only and are not linked to this area's water records.

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

Consumer Confidence Rule 16 violations
Reporting
Lead and Copper Rule 8 violations
Treatment Technique
Developmental delays in children, kidney damage
Total Trihalomethanes (TTHM) 4 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

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
29%
Built Before 1970
Copper
Likely Pipe Material

With 48% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

A citywide median of 1982 for construction says little about any single address in Mount Holly. Homes built before 1986, when federal amendments restricted the lead content allowed in new pipe, solder and flux, may contain plumbing materials with more lead, and later renovations may have replaced them. An inspection of the plumbing can identify the materials, and sending a tap water sample to an accredited laboratory measures lead.

1982
Median Year Built
48%
Pre-1986 (lead solder era; lead paint banned 1978)
29%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (29%) 1970–1986 (19%) Post-1986 (52%)

Most homes in Mount Holly 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.

Mount Holly: Remediation Cost in Perspective

In Mount Holly, estimated remediation comes to 1% or less of the median home value.

Median Home Value
$272,500
Est. Remediation
$300
Remediation as % of home value 0.1%

Estimated remediation costs in Mount Holly can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. 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 average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

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.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

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 $300 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 violations are on record for water systems serving Mount Holly?
EPA records list 17 EPA violations, including 1 health-based violation for Mount Holly water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Mount Holly water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Mount Holly is 0.006 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Mount Holly?
Our records map 5 water systems to 1 ZIP code in Mount Holly. The related population figure in our data is approximately 24,363 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Mount Holly?
Estimated remediation cost per household in Mount Holly: $300; modeled range $150 to $600. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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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: October 2026.

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