Western Regional WRF
4111 Hydraulic Rd, West Carrollton, OH 45449 · Montgomery County · Publicly Owned Treatment Works
- Average flow
- 14.48 MGD
- Design flow
- 20 MGD
- NPDES permit
- OH0026638
- Effective
- Permit expires
- October 2026
- Population served
- 88,254
- CWNS 2022
Western Regional WRF is a publicly owned wastewater treatment works in West Carrollton, Montgomery County, Ohio treating an average of 14.48 million gallons per day against a permitted design capacity of 20 MGD, serving about 88,254 residents. It discharges under NPDES permit OH0026638 (effective), which expires in October 2026, with 4 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Western Regional WRF.
Available with a free Klarifi account
See the full treatment train at Western Regional WRF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Western Regional WRF, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Western Regional WRF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
W Carrollton · 2 mi away
1.45 MGD
Dayton · 3 mi away
51.69 MGD
Dayton · 3 mi away
0.00049 MGD
Miamisburg · 5 mi away
3.13 MGD
New Lebanon · 8 mi away
0.51 MGD
Kettering · 8 mi away
8.51 MGD
Farmersville · 9 mi away
0.2 MGD
Springboro · 9 mi away
2.33 MGD
Western Regional WRF: 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 April 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms