Jamestown STP
35 South Limestone, Jamestown, OH 45335 · Greene County · Publicly Owned Treatment Works
- Average flow
- 0.68 MGD
- Design flow
- 0.9 MGD
- NPDES permit
- OH0025879
- Effective
- Permit expires
- April 2030
- Population served
- 4,457
- CWNS 2022
Jamestown STP is a publicly owned wastewater treatment works in Jamestown, Greene County, Ohio treating an average of 0.68 million gallons per day against a permitted design capacity of 0.9 MGD, serving about 4,457 residents. It discharges under NPDES permit OH0025879 (effective), which expires in April 2030, with 35 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Jamestown STP.
Available with a free Klarifi account
See the full treatment train at Jamestown STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 35
- Effluent violations
- 35
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Jamestown STP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Jamestown STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Cedarville · 7 mi away
0.53 MGD
Jeffersonville · 8 mi away
0.33 MGD
South Solon · 9 mi away
0.04 MGD
Delaware · 10 mi away
5.81 MGD
Cedarville · 11 mi away
0.01 MGD
Yellow Springs · 12 mi away
0.52 MGD
Xenia · 12 mi away
2.12 MGD
Sabina · 12 mi away
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Jamestown STP: 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 September 13, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms