Mid-Clay Regional WWTF
7,000 Feet NE Of Cr 739 And Cr 739a, Middleburg, FL · Clay County · Publicly Owned Treatment Works
- Average flow
- 3 MGD
- Design flow
- 3 MGD
- NPDES permit
- FLA011377
- Effective
- Permit expires
- August 2031
- Population served
- —
- CWNS 2022
Mid-Clay Regional WWTF is a publicly owned wastewater treatment works in Middleburg, Clay County, Florida treating an average of 3 million gallons per day against a permitted design capacity of 3 MGD. It discharges under NPDES permit FLA011377 (effective), which expires in August 2031.
Treatment technology
2 treatment structures and unit processes identified at Mid-Clay Regional WWTF.
Available with a free Klarifi account
See the full treatment train at Mid-Clay Regional WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- —
- Effluent violations
- —
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Mid-Clay Regional WWTF, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Mid-Clay Regional WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Florida
Middleburg · 3 mi away
2.37 MGD
Middleburg · 4 mi away
1.47 MGD
Green Cove Springs · 5 mi away
1.5 MGD
Green Cove Springs · 7 mi away
0.24 MGD
Green Cove Springs · 9 mi away
0.24 MGD
Middleburg · 9 mi away
0.04 MGD
Middleburg · 9 mi away
0.04 MGD
Jacksonville · 11 mi away
1 MGD
Mid-Clay Regional WWTF: 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 October 22, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms