Lakengren Water Authority
3800 Longman Rd, Eaton, OH 45320 · Preble County · Publicly Owned Treatment Works
- Average flow
- 0.35 MGD
- Design flow
- 0.6 MGD
- NPDES permit
- OH0049476
- Expired
- Permit expires
- December 2025
- Population served
- 2,861
- CWNS 2022
Lakengren Water Authority is a publicly owned wastewater treatment plant in Eaton, Preble County, Ohio treating an average of 0.35 million gallons per day against a permitted design capacity of 0.6 MGD, serving about 2,861 residents. It discharges under NPDES permit OH0049476 (expired), which expires in December 2025, with 3 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Lakengren Water Authority.
Available with a free Klarifi account
See the full treatment train at Lakengren Water Authority: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Lakengren Water Authority.
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Nearby wastewater treatment plants in Ohio
Camden · 4 mi away
0.19 MGD
Eaton · 5 mi away
1.53 MGD
College Corner · 7 mi away
0.04 MGD
Somerville · 9 mi away
0.03 MGD
Gratis · 9 mi away
0.09 MGD
W Alexandria · 10 mi away
0.18 MGD
Jefferson Twp. · 11 mi away
0.0056 MGD
Oxford · 12 mi away
2.79 MGD
Lakengren Water Authority: 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 August 4, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms