Old Monroe Sand & Gravel
Keeteman Road, Old Monroe, MO 63369 · Lincoln County · Publicly Owned Treatment Works
- Average flow
- 0.0025 MGD
- Design flow
- —
- NPDES permit
- MO0114359
- Administratively continued
- Permit expires
- September 2023
- Population served
- 724
- CWNS 2022
Old Monroe Sand & Gravel is a publicly owned wastewater treatment plant in Old Monroe, Lincoln County, Missouri treating an average of 0.0025 million gallons per day, serving about 724 residents. It discharges under NPDES permit MO0114359 (administratively continued), which expires in September 2023, with 0 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified, 1 planned upgrade on record at Old Monroe Sand & Gravel.
Available with a free Klarifi account
See the full treatment train at Old Monroe Sand & Gravel: structures, unit processes and planned upgrades, with exact unit counts.
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 Old Monroe Sand & Gravel.
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Nearby wastewater treatment plants in Missouri
Old Monroe · 2 mi away
0.04 MGD
O'Fallon · 4 mi away
0.13 MGD
Winfield · 4 mi away
0.0058 MGD
O'Fallon · 7 mi away
7.55 MGD
Moscow Mills · 7 mi away
0.0037 MGD
Winfield · 8 mi away
0.35 MGD
Wentzville · 9 mi away
4.64 MGD
Moscow Mills · 10 mi away
0.31 MGD
Old Monroe Sand & Gravel: 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 November 8, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms