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Berkeley County, SC Water Quality

Water quality data for 5 public water systems serving Berkeley County, South Carolina — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 5 water systems · 12 cities
✅
Excellent — All Systems Performing Well

Water quality across the county is outstanding with minimal violations and very low lead levels.

A

Berkeley County Earns a A

Berkeley County: 12 communities across 5 water systems. 100.0% have no open violations.

  • Median lead where detected: 0.36 ppb
  • 11 communities with a lead detection, 1 reporting none detected
  • 1 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
0.36 ppb
Median Lead Level
County-wide, 90th percentile
5
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
  • Goose Creek
    Not detected
    No federal limits exceeded on record
    B
  • Hanahan
    3.50 ppb
    No federal limits exceeded on record
    B
  • Ladson
    3.50 ppb
    No federal limits exceeded on record
    B
  • Sangaree
    0.36 ppb
    No federal limits exceeded on record
    B
  • Bonneau Beach
    0.36 ppb
    No federal limits exceeded on record
    B
⚠ Needs Attention
  • Moncks Corner
    0.64 ppb
    PFAS above the limit at 1 of 1 sampling points
    B
  • Goose Creek
    Not detected
    No federal limits exceeded on record
    B
  • Hanahan
    3.50 ppb
    No federal limits exceeded on record
    B
  • Ladson
    3.50 ppb
    No federal limits exceeded on record
    B
  • Sangaree
    0.36 ppb
    No federal limits exceeded on record
    B
County Lead Level — Median 0.36 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 0.36 ppb — 2.4% of the federal action level
Systems by Lead Level
Under 5 ppb
11
No Data
1

All Cities in Berkeley County

Goose Creek Not detected B
Hanahan 3.50 ppb B
Moncks Corner 0.64 ppb B
Ladson 3.50 ppb B
Sangaree 0.36 ppb B
Bonneau Beach 0.36 ppb B
St. Stephen 0.36 ppb B
Pimlico 0.36 ppb B
Pinopolis 0.36 ppb B
Bonneau 0.36 ppb B
Russellville 0.36 ppb B
Jamestown 1.20 ppb B
Showing 12 cities
No active violations Active violations

About Berkeley County Drinking Water

Berkeley County is served by 5 water systems covering 12 communities. No community here has an open violation on record.

Of the communities reporting lead results, 11 recorded a detection, with a median of 0.36 ppb — 2% of the federal action level. 1 reported none detected, which means below the laboratory limit rather than an absence of lead.

1 of 12 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 Berkeley County tap water safe to drink?▼
No community in Berkeley County has an open violation on record. 1 of 12 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Berkeley County?▼
Among communities with a detection the median is 0.36 ppb, 2% of the 15 ppb action level. 1 reported none detected and 0 reported no result.
How many water systems serve Berkeley County?▼
5 community water systems serve 12 communities here.
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