Charleston Cpw Daniel Island
Charleston, SC · Berkeley County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.9 MGD
- NPDES permit
- SC0047074
- Effective
- Permit expires
- April 2031
- Population served
- 3,689
- CWNS 2022
Charleston Cpw Daniel Island is a publicly owned wastewater treatment plant in Charleston, Berkeley County, South Carolina, serving about 3,689 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit SC0047074 (effective), which expires in April 2031, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Charleston Cpw Daniel Island.
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Isle Of Palms · 8 mi away
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Summerville · 20 mi away
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Charleston Cpw Daniel Island: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated March 5, 2025.