Dorchester Co Lower Dorchester WWTP
Dorchester, SC · Dorchester County · Publicly Owned Treatment Works
- Average flow
- 6.7 MGD
- Design flow
- 10 MGD
- NPDES permit
- SC0038822
- Effective
- Permit expires
- November 2027
- Population served
- —
- CWNS 2022
Dorchester Co Lower Dorchester WWTP is a publicly owned wastewater treatment works in Dorchester, Dorchester County, South Carolina treating an average of 6.7 million gallons per day against a permitted design capacity of 10 MGD. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches, biogas silos. It discharges under NPDES permit SC0038822 (effective), which expires in November 2027, with 20 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Carrousels / oxidation ditches
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Biogas silos
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Compliance snapshot (last 3 years)
- Total violations
- 20
- Effluent violations
- 16
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Dorchester Co Lower Dorchester WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Dorchester Co Lower Dorchester WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in South Carolina
Summerville · 8 mi away
4.8 MGD
Goose Creek · 11 mi away
8.6 MGD
North Charleston · 12 mi away
15.89 MGD
Charleston · 13 mi away
—
Charleston · 14 mi away
27 MGD
Goose Creek · 16 mi away
2.78 MGD
Moncks Corner · 16 mi away
0.95 MGD
Mount Pleasant · 18 mi away
7.3 MGD
Dorchester Co Lower Dorchester WWTP: 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 14, 2025.