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Florence County, SC Water Quality

Water quality data for 7 public water systems serving Florence County, South Carolina — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 7 water systems · 10 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Florence County Earns a B

Florence County: 10 communities across 7 water systems. 100.0% have no open violations.

  • Median lead where detected: 1.10 ppb
  • 10 communities with a lead detection, 0 reporting none detected
  • 4 communities with PFAS above the federal limit
  • 1 with significant inspection deficiencies
  • 100.0% of communities have no open violations
1.1 ppb
Median Lead Level
County-wide, 90th percentile
7
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
  • Lake City
    1.30 ppb
    No federal limits exceeded on record
    A
  • Scranton
    0.25 ppb
    No federal limits exceeded on record
    B
  • Olanta
    0.75 ppb
    No federal limits exceeded on record
    B
  • Coward
    0.59 ppb
    No federal limits exceeded on record
    B
  • Johnsonville
    5.60 ppb
    Lead at 5.60 ppb, above a third of the action level
    A
⚠ Needs Attention
  • Florence
    1.10 ppb
    PFAS above the limit at 1 of 13 sampling points
    C
  • Timmonsville
    1.10 ppb
    PFAS above the limit at 1 of 13 sampling points
    C
  • Quinby
    1.10 ppb
    PFAS above the limit at 1 of 13 sampling points
    C
  • Danwood
    1.10 ppb
    PFAS above the limit at 1 of 13 sampling points
    C
  • Pamplico
    0.65 ppb
    1 significant inspection deficiency
    B
County Lead Level — Median 1.1 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.1 ppb — 7.3% of the federal action level
Systems by Lead Level
Under 5 ppb
9
5 – 10 ppb
1

All Cities in Florence County

Florence 1.10 ppb C
Lake City 1.30 ppb A
Timmonsville 1.10 ppb C
Johnsonville 5.60 ppb A
Pamplico 0.65 ppb B
Quinby 1.10 ppb C
Scranton 0.25 ppb B
Olanta 0.75 ppb B
Danwood 1.10 ppb C
Coward 0.59 ppb B
Showing 10 cities
No active violations Active violations

About Florence County Drinking Water

Florence County is served by 7 water systems covering 10 communities. No community here has an open violation on record.

Of the communities reporting lead results, 10 recorded a detection, with a median of 1.10 ppb — 7% of the federal action level. 0 reported none detected, which means below the laboratory limit rather than an absence of lead.

4 of 10 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded significant deficiencies at 1 of them.

Frequently Asked Questions

Is Florence County tap water safe to drink?▼
No community in Florence County has an open violation on record. 4 of 10 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Florence County?▼
Among communities with a detection the median is 1.10 ppb, 7% of the 15 ppb action level. 0 reported none detected and 0 reported no result.
How many water systems serve Florence County?▼
7 community water systems serve 10 communities here.
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