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McCormick County, SC Water Quality

Water quality data for 2 public water systems serving McCormick County, South Carolina — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 2 water systems · 2 cities
⚠️
Caution Advised — Some Systems Need Attention

Some systems have elevated lead levels or active violations. Check your specific city below.

C

McCormick County Earns a C

McCormick County: 2 communities across 2 water systems. 100.0% have no open violations.

  • Median lead where detected: none detected
  • 0 communities with a lead detection, 2 reporting none detected
  • 1 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
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Median Lead Level
County-wide, 90th percentile
2
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • McCormick
    Not detected
    4 health-based violations since 2015
    B
  • Plum Branch
    Not detected
    PFAS above the limit at 1 of 3 sampling points
    C
⚠ Needs Attention
  • Plum Branch
    Not detected
    PFAS above the limit at 1 of 3 sampling points
    C
  • McCormick
    Not detected
    4 health-based violations since 2015
    B

All Cities in McCormick County

McCormick Not detected B
Plum Branch Not detected C
Showing 2 cities
No active violations Active violations

About McCormick County Drinking Water

McCormick County is served by 2 water systems covering 2 communities. No community here has an open violation on record.

Lead was not detected in any community in McCormick County that reported a result.

1 of 2 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded no significant deficiencies.

Frequently Asked Questions

Is McCormick County tap water safe to drink?▼
No community in McCormick County has an open violation on record. 1 of 2 have PFAS above the federal limit, which is the main open concern.
What is the lead level in McCormick County?▼
No community reported a lead detection.
How many water systems serve McCormick County?▼
2 community water systems serve 2 communities here.
← Back to South Carolina water quality overview