Aqua Ohio Water Co Inc - Blacklick WWTP
Columbus, OH · Franklin County · Publicly Owned Treatment Works
- Average flow
- 0.72 MGD
- Design flow
- 1.2 MGD
- NPDES permit
- OH0036021
- Effective
- Permit expires
- November 2029
- Population served
- —
- CWNS 2022
Aqua Ohio Water Co Inc - Blacklick WWTP is a publicly owned wastewater treatment works in Columbus, Franklin County, Ohio treating an average of 0.72 million gallons per day against a permitted design capacity of 1.2 MGD. It discharges under NPDES permit OH0036021 (effective), which expires in November 2029, with 8 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
- 8
- Effluent violations
- 8
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Columbus
Columbus's capital improvement plan lists 297 water, sewer and wastewater line items worth $4.2B starting 2025–2029. The largest budgeted items are shown here.
All water and sewer capital projects in Columbus →
| Project | Budget | Years |
|---|---|---|
| Fourth Water Plant | $548,000,000 | 2025–2028 |
| Williams and Castle Interceptor | $361,500,000 | 2025–2029 |
| Three Creeks Relief Tunnel | $249,500,000 | 2025–2028 |
| SWWTP Effluent Pump Station Expansion | $228,400,000 | 2027–2029 |
| Fourth Water Plant Transmission Main | $217,500,000 | 2025–2029 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Aqua Ohio Water Co Inc - Blacklick WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Ohio
Lancaster · 4 mi away
1.81 MGD
Canal Winchester · 5 mi away
1.39 MGD
Pickerington · 5 mi away
2.54 MGD
Canal Winchester · 7 mi away
0.16 MGD
Columbus · 8 mi away
0.08 MGD
Pickerington · 8 mi away
0.13 MGD
Columbus · 8 mi away
—
Lockbourne · 9 mi away
0.01 MGD
Aqua Ohio Water Co Inc - Blacklick 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 September 30, 2025.