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Laurens County, SC Water Quality

Water quality data for 4 public water systems serving Laurens County, South Carolina — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 4 water systems · 6 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

Laurens County Earns a B

Laurens County: 6 communities across 4 water systems. 100.0% have no open violations.

  • Median lead where detected: 2.50 ppb
  • 2 communities with a lead detection, 4 reporting none detected
  • 4 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
2.5 ppb
Median Lead Level
County-wide, 90th percentile
4
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
  • Watts Mills
    2.00 ppb
    No federal limits exceeded on record
    B
  • Princeton
    Not detected
    No federal limits exceeded on record
    A
  • Clinton
    3.00 ppb
    PFAS above the limit at 1 of 1 sampling points
    B
  • Waterloo
    Not detected
    PFAS above the limit at 2 of 3 sampling points
    C
  • Laurens
    Not detected
    PFAS above the limit at 2 of 3 sampling points
    C
⚠ Needs Attention
  • Waterloo
    Not detected
    PFAS above the limit at 2 of 3 sampling points
    C
  • Laurens
    Not detected
    PFAS above the limit at 2 of 3 sampling points
    C
  • Cross Hill
    Not detected
    PFAS above the limit at 2 of 3 sampling points
    C
  • Clinton
    3.00 ppb
    PFAS above the limit at 1 of 1 sampling points
    B
  • Watts Mills
    2.00 ppb
    No federal limits exceeded on record
    B
County Lead Level — Median 2.5 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.5 ppb — 16.7% of the federal action level
Systems by Lead Level
Under 5 ppb
2
No Data
4

All Cities in Laurens County

Laurens Not detected C
Clinton 3.00 ppb B
Watts Mills 2.00 ppb B
Cross Hill Not detected C
Princeton Not detected A
Waterloo Not detected C
Showing 6 cities
No active violations Active violations

About Laurens County Drinking Water

Laurens County is served by 4 water systems covering 6 communities. No community here has an open violation on record.

Of the communities reporting lead results, 2 recorded a detection, with a median of 2.50 ppb — 17% of the federal action level. 4 reported none detected, which means below the laboratory limit rather than an absence of lead.

4 of 6 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 Laurens County tap water safe to drink?▼
No community in Laurens County has an open violation on record. 4 of 6 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Laurens County?▼
Among communities with a detection the median is 2.50 ppb, 17% of the 15 ppb action level. 4 reported none detected and 0 reported no result.
How many water systems serve Laurens County?▼
4 community water systems serve 6 communities here.
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