What is the address of St Marks WWTF?

The address on the plant’s EPA facility record is Magnolia Street, St Marks, FL, in Wakulla County. Its coordinates are 30.1532, -84.2076. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does St Marks WWTF treat?

St Marks WWTF treats an average of 0.1 MGD and is permitted for a design flow of 0.1 MGD.

What treatment technology does St Marks WWTF use?

Klarifi has identified 2 treatment structures and unit processes at the St Marks facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for St Marks WWTF?

The facility discharges under NPDES permit FLA102318, currently effective, expiring June 2030.

Who operates St Marks WWTF and how do I contact them?

St Marks WWTF is a publicly owned treatment works in St Marks, Florida. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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St Marks WWTF

Magnolia Street, St Marks, FL · Wakulla County · Publicly Owned Treatment Works

Average flow: 0.1 MGD

Design flow: 0.1 MGD

NPDES permit: FLA102318; Effective

Permit expires: June 2030

Population served: —; CWNS 2022

St Marks WWTF is a publicly owned wastewater treatment works in St Marks, Wakulla County, Florida treating an average of 0.1 million gallons per day against a permitted design capacity of 0.1 MGD. It discharges under NPDES permit FLA102318 (effective), which expires in June 2030.

Treatment technology

2 treatment structures and unit processes identified at St Marks WWTF.

Available with a free Klarifi account

See the full treatment train at St Marks WWTF: structures, unit processes and planned upgrades, with exact unit counts.

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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 St Marks WWTF, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at St Marks WWTF, plus the full compliance history and discharge data.

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Fort Braden Elementary School WWTP

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Taylor Correctional Institution WWTF

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Fdot - US 19 Taylor Rest Area WWTF

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Havana WWTF

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St Marks 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 · Lift station · Sludge dewatering · all terms

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