Tawa Estates WWTP
Richwood, OH · Union County · Publicly Owned Treatment Works
- Average flow
- 0.00065 MGD
- Design flow
- 0.0075 MGD
- NPDES permit
- OH0039187
- Effective
- Permit expires
- April 2031
- Population served
- 36
- CWNS 2022
Tawa Estates WWTP is a publicly owned wastewater treatment works in Richwood, Union County, Ohio treating an average of 0.00065 million gallons per day against a permitted design capacity of 0.0075 MGD, serving about 36 residents. It discharges under NPDES permit OH0039187 (effective), which expires in April 2031, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Tawa Estates WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Ohio
Richwood · 2 mi away
0.14 MGD
Prospect · 4 mi away
0.05 MGD
Marion · 10 mi away
0.0034 MGD
Marion · 10 mi away
0.02 MGD
Marysville · 10 mi away
0.0091 MGD
Marion · 11 mi away
0.0031 MGD
Ostrander · 11 mi away
0.04 MGD
Marion · 12 mi away
0.02 MGD
Tawa Estates 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 September 11, 2026; facility record last updated August 20, 2024.