What is the address of City Of Marathon Area 5 Little Venice WWTP?

The address on the plant’s EPA facility record is 506 106th Street Gulf, Marathon, FL, in Monroe County. Its coordinates are 24.7288, -81.0399. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does City Of Marathon Area 5 Little Venice WWTP treat?

City Of Marathon Area 5 Little Venice WWTP treats an average of 0.45 MGD and is permitted for a design flow of 0.45 MGD.

What treatment technology does City Of Marathon Area 5 Little Venice WWTP use?

Klarifi has identified 7 treatment structures and unit processes at the Marathon facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for City Of Marathon Area 5 Little Venice WWTP?

The facility discharges under NPDES permit FLA187364, currently effective, expiring September 2030.

Who operates City Of Marathon Area 5 Little Venice WWTP and how do I contact them?

City Of Marathon Area 5 Little Venice WWTP is a publicly owned treatment works in Marathon, Florida. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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City Of Marathon Area 5 Little Venice WWTP

506 106th Street Gulf, Marathon, FL · Monroe County · Publicly Owned Treatment Works

Average flow: 0.45 MGD

Design flow: 0.45 MGD

NPDES permit: FLA187364; Effective

Permit expires: September 2030

Population served: —; CWNS 2022

City Of Marathon Area 5 Little Venice WWTP is a publicly owned wastewater treatment works in Marathon, Monroe County, Florida treating an average of 0.45 million gallons per day against a permitted design capacity of 0.45 MGD. It discharges under NPDES permit FLA187364 (effective), which expires in September 2030.

Treatment technology

7 treatment structures and unit processes identified at City Of Marathon Area 5 Little Venice WWTP.

Available with a free Klarifi account

See the full treatment train at City Of Marathon Area 5 Little Venice WWTP: 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 City Of Marathon Area 5 Little Venice WWTP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at City Of Marathon Area 5 Little Venice WWTP, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Florida

City Of Marathon Area 4 WWTP

Marathon · 2 mi away

0.4 MGD

Marathon, City Of - Area 6

Marathon · 2 mi away

0.2 MGD

City Of Marathon Area 3 WWTP

Marathon · 3 mi away

0.25 MGD

City Of Marathon Area 7 WWTP

Marathon · 7 mi away

0.2 MGD

Duck Key Wastewater Cooperative

Duck Key · 8 mi away

0.27 MGD

City Of Layton WWTP

Layton · 15 mi away

0.07 MGD

Bahia Honda State Park Sand Spur 3

Big Pine Key · 16 mi away

0.02 MGD

Cudjoe Key AWWTP

Cudjoe Key · 30 mi away

0.94 MGD

City Of Marathon Area 5 Little Venice 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 October 26, 2026; facility record last updated October 22, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms

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