Walnut Creek Sd
Baltimore, OH · Fairfield County · Publicly Owned Treatment Works
- Average flow
- 0.12 MGD
- Design flow
- 0.4 MGD
- NPDES permit
- OH0054917
- Effective
- Permit expires
- August 2029
- Population served
- 1,692
- CWNS 2022
Walnut Creek Sd is a publicly owned wastewater treatment plant in Baltimore, Fairfield County, Ohio treating an average of 0.12 million gallons per day against a permitted design capacity of 0.4 MGD, serving about 1,692 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit OH0054917 (effective), which expires in August 2029, with 91 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 91
- Effluent violations
- 50
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Walnut Creek Sd, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Walnut Creek Sd, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Baltimore · 4 mi away
0.33 MGD
Lancaster · 5 mi away
0.0051 MGD
Millersport · 6 mi away
0.1 MGD
Lancaster · 8 mi away
4.7 MGD
Buckeye Lake · 8 mi away
0.52 MGD
Thornville · 9 mi away
0.11 MGD
Pickerington · 9 mi away
0.13 MGD
Kirkersville · 10 mi away
0.04 MGD
Walnut Creek Sd: 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 6, 2026.