Fort Mill, SC: 4 Health Violations — 84/100 (2026)
4 ZIP codes · 6 water systems · Updated 2026-06-03
Compared to statewide averages in SC, Fort Mill scores well — health violations are below the norm and systems generally operate within federal standards.
How Fort Mill Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Fort Mill Water
- Your city's water systems recorded 12 violations in the past 5 years.
- Average lead level: 0.002 mg/L.
- Homes built before 1986: 14% — older plumbing may contain lead solder.
- Estimated remediation: $2,300 per household.
- CDC health risk index: 12.64 — above typical levels.
Who Supplies Your Water in Fort Mill
Multiple utilities divide Fort Mill, SC's water service — 3 leading providers among 6 on the federal register.
Overview
We track water quality and home safety data for 4 ZIP codes in Fort Mill, South Carolina, covering 6 community water systems serving approximately 122,010 people.
4 of 4 ZIP codes (100%) have recorded EPA violations. 4 health-based violations documented.
Home Safety Score
Average Home Safety Score for Fort Mill: B (84/100)
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
Fort Mill water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 3 ZIP codes
- Zone 3 (Low): 1 ZIP code
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 10 | 4 |
| Surface Water Treatment Rule | Treatment Technique | 5 | 4 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 29707 | A | 3 | 1 | Fort Mill Town of (sc4610003) |
| 29708 | B | 3 | 1 | Fort Mill Town of (sc4610003) |
| 29715 | B | 3 | 1 | Fort Mill Town of (sc4610003) |
| 29716 | B | 3 | 1 | Fort Mill Town of (sc4610003) |
All ZIP Codes in Fort Mill
- 29707 [A] — 3 violations ⚠
- 29708 [B] — 3 violations ⚠
- 29715 [B] — 3 violations ⚠
- 29716 [B] — 3 violations ⚠
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.
Health Outcomes in Fort Mill
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
Top Contaminants in Fort Mill Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Fort Mill
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
Post-1986 construction is where the lower lead-solder risk lives, because that's when the federal ban on lead solder in plumbing took effect. In Fort Mill, where the median build year is 2003, the housing stock falls broadly on the newer side of that threshold — a distribution that moderates aggregate plumbing-era risk compared to older housing markets.
Most homes in Fort Mill 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.
Cost Context: What Remediation Means for Fort Mill Homeowners
Because property values in Fort Mill comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Fort Mill are relatively low compared to home values. The $1,200–$3,700 estimated range is a small fraction of median property value. Home values are 113% above the South Carolina average.
Lead Exposure Risk for Children in Fort Mill
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.
Confirming what flows from a specific faucet still requires a one-home draw, even where Fort Mill averages stay clean and the pre-rule housing share holds at 14%.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Fort Mill
75% of ZIP codes in Fort Mill are mapped into FEMA-designated flood zones, and the NFIP records 22 claims reflecting a multi-event flood history. That combination places local flood exposure in the range where water-quality implications deserve at least periodic attention.
Fort Mill has a moderate flood history with 22 FEMA claims averaging $19,547 per payout. 75% 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>$2,300</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.
Deep Dive Reports
Detailed analysis for Fort Mill, SC