La Grange STP
2515 New Moody Lane, La Grange, KY 40031 · Oldham County · Publicly Owned Treatment Works
- Average flow
- 1.02 MGD
- Design flow
- 1.9 MGD
- NPDES permit
- KY0020001
- Effective
- Permit expires
- November 2027
- Population served
- 10,110
- CWNS 2022
La Grange STP is a publicly owned wastewater treatment works in La Grange, Oldham County, Kentucky treating an average of 1.02 million gallons per day against a permitted design capacity of 1.9 MGD, serving about 10,110 residents. It discharges under NPDES permit KY0020001 (effective), which expires in November 2027, with 5 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at La Grange STP.
Available with a free Klarifi account
See the full treatment train at La Grange STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 5
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at La Grange STP.
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Nearby wastewater treatment plants in Kentucky
La Grange · 2 mi away
0.79 MGD
La Grange · 4 mi away
0.04 MGD
Eminence · 11 mi away
0.67 MGD
Simpsonville · 12 mi away
0.4 MGD
New Castle · 12 mi away
0.17 MGD
Bedford · 14 mi away
0.12 MGD
Carrollton · 22 mi away
1.15 MGD
Milton · 23 mi away
0.08 MGD
La Grange STP: 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 October 26, 2026; facility record last updated May 18, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms