Tar Hollow State Park
Laurelville, OH · Hocking County · Publicly Owned Treatment Works
- Average flow
- 0.0018 MGD
- Design flow
- 0.01 MGD
- NPDES permit
- OH0037940
- Effective
- Permit expires
- January 2027
- Population served
- —
- CWNS 2022
Tar Hollow State Park is a publicly owned wastewater treatment plant in Laurelville, Hocking County, Ohio treating an average of 0.0018 million gallons per day against a permitted design capacity of 0.01 MGD. It discharges under NPDES permit OH0037940 (effective), which expires in January 2027, with 1 recorded violation 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
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
7 verified contacts for Tar Hollow State Park, with validated emails and direct phone numbers.
Unlock 7 verified contacts (4 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Tar Hollow State Park, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Laurelville · 6 mi away
0.07 MGD
Chillicothe · 10 mi away
0.0041 MGD
Logan · 11 mi away
0.01 MGD
Chillicothe · 12 mi away
2.12 MGD
Kingston · 12 mi away
0.06 MGD
Chillicothe · 14 mi away
0.97 MGD
Circleville · 16 mi away
0.19 MGD
Chillicothe · 17 mi away
0.34 MGD
Tar Hollow State Park: 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.