Marshallberg, NC Water Safety: 60/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Marshallberg's water quality grade in NC reflects a middle-ground assessment — service areas range from fully compliant to violation-flagged in current EPA records.
How Marshallberg Compares
Data: EPA SDWIS Last verified: 2026-06-03
Marshallberg Water: The Quick Version
- Homes built before 1986: 80% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 13.93 — above typical levels.
Water Systems Serving Marshallberg
A single dominant system supplies most of Marshallberg, NC. That utility controls infrastructure decisions, rate structures, and EPA compliance reporting for most residential addresses served across those 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Marshallberg, North Carolina (population ~449), covering 1 community water system serving approximately 2,586 people region-wide.
No EPA violations recorded across any ZIP codes in Marshallberg — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Marshallberg: C (60/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Marshallberg water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Marshallberg
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 28553 | C | HARKERS ISLAND SANITARY DIST | 2,586 |
All ZIP Codes in Marshallberg
- 28553 [C]
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
Updated daily.
CDC Health Data for Marshallberg
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Old Is Marshallberg's Housing Stock?
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
Heavily weighted toward older construction, Marshallberg's housing stock carries a median build year of 1968. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Marshallberg 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.
Marshallberg: Remediation Cost in Perspective
In Marshallberg, property wealth outpaces what documented remediation typically demands — the equity burden lands well within the low tier.
Remediation costs in Marshallberg are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 27% below the North Carolina average.
Protecting Children from Lead in Marshallberg
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 stock in Marshallberg represents 80% of the inventory, and citywide monitoring runs at or above the federal action level — making an in-home read a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Marshallberg
Flood risk in Marshallberg occupies the middle ground: 184 NFIP claims and 100% of local ZIP codes within FEMA flood zones. At that level, the risk pathways connecting flooding to water quality — treatment system stress, well infiltration, distribution backflow — become relevant considerations during significant flood events, even if day-to-day water quality is unaffected by flood history.
Marshallberg has a moderate flood history with 184 FEMA claims averaging $13,203 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$1,200</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Marshallberg
- 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.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 80% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Marshallberg, NC