New Carlisle WWTP
403 Garfield St, New Carlisle, OH 45344 · Clark County · Publicly Owned Treatment Works
- Average flow
- 0.49 MGD
- Design flow
- 1 MGD
- NPDES permit
- OH0020044
- Effective
- Permit expires
- April 2030
- Population served
- 6,003
- CWNS 2022
New Carlisle WWTP is a publicly owned wastewater treatment works in New Carlisle, Clark County, Ohio treating an average of 0.49 million gallons per day against a permitted design capacity of 1 MGD, serving about 6,003 residents. It discharges under NPDES permit OH0020044 (effective), which expires in April 2030, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at New Carlisle WWTP.
Available with a free Klarifi account
See the full treatment train at New Carlisle 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 New Carlisle WWTP.
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Nearby wastewater treatment plants in Ohio
Medway · 4 mi away
1.46 MGD
Huber Hts · 7 mi away
4.64 MGD
Dayton · 10 mi away
11.24 MGD
Springfield · 10 mi away
17.12 MGD
Troy · 11 mi away
5.28 MGD
Yellow Springs · 13 mi away
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Englewood · 14 mi away
2.46 MGD
St. Paris · 14 mi away
0.21 MGD
New Carlisle 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 May 23, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms