Lapaz Municipal WWTP
12911 U.s. 6 & U.s. 31, Lapaz, IN 46537 · Marshall County · Publicly Owned Treatment Works
- Average flow
- 0.06 MGD
- Design flow
- 0.13 MGD
- NPDES permit
- IN0040223
- Effective
- Permit expires
- September 2029
- Population served
- 475
- CWNS 2022
Lapaz Municipal WWTP is a publicly owned wastewater treatment works in Lapaz, Marshall County, Indiana treating an average of 0.06 million gallons per day against a permitted design capacity of 0.13 MGD, serving about 475 residents. It discharges under NPDES permit IN0040223 (effective), which expires in September 2029, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Lapaz Municipal WWTP.
Available with a free Klarifi account
See the full treatment train at Lapaz Municipal WWTP: 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 Lapaz Municipal WWTP.
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Nearby wastewater treatment plants in Indiana
Bremen · 6 mi away
0.15 MGD
Lakeville · 8 mi away
0.27 MGD
Walkerton · 9 mi away
0.06 MGD
Walkerton · 9 mi away
0.2 MGD
North Liberty · 10 mi away
0.13 MGD
Argos · 14 mi away
0.12 MGD
Bourbon · 14 mi away
0.24 MGD
Hamlet · 15 mi away
0.03 MGD
Lapaz Municipal 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 October 26, 2026; facility record last updated March 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms