Mclain POTW
Mc Lain, MS · Greene County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.04 MGD
- NPDES permit
- MS0035165
- Effective
- Permit expires
- January 2030
- Population served
- —
- CWNS 2022
Mclain POTW is a publicly owned wastewater treatment works in Mc Lain, Greene County, Mississippi. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit MS0035165 (effective), which expires in January 2030, with 26 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
- 26
- Effluent violations
- 26
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Mclain POTW.
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Nearby wastewater treatment plants in Mississippi
New Augusta · 14 mi away
—
Lucedale · 20 mi away
—
State Line · 30 mi away
—
Lumberton · 38 mi away
—
Waynesboro · 38 mi away
0.53 MGD
Gulfport · 41 mi away
0.05 MGD
Laurel · 42 mi away
2.8 MGD
Gulfport · 44 mi away
0.08 MGD
Mclain POTW: 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 12, 2025.