Callahan, City Of - Callahan WWTF

Callahan, FL · Nassau County · Publicly Owned Treatment Works

Average flow: 0.15 MGD

Design flow: 0.5 MGD

NPDES permit: 3603640385; Effective

Permit expires: May 2028

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Clarifiers

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Carrousels / oxidation ditches

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Screening

unit process

Primary Clarification or Sedimentation

unit process

Disinfection, chlorine/ chloramine

unit process

Dechlorination

unit process

Biosolids Aerobic Digestion

unit process

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Compliance snapshot (last 3 years)

Total violations: 16

Effluent violations: 16

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

1 verified contact for Callahan, City Of - Callahan WWTF, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Callahan, City Of - Callahan WWTF — plus full compliance history and discharge data.

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Nearby wastewater treatment plants in Florida

Hilliard WWTF

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0.32 MGD

Nassau Regional WWTF

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2.21 MGD

Jea Buckman WWTP

Jacksonville · 19 mi away

23.11 MGD

Baldwin WWTF

Jacksonville · 21 mi away

0.19 MGD

Southwest District WWTF

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12.19 MGD

City Of Macclenny Wastewater Facility

Macclenny · 27 mi away

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Miller Street Rmf

Middleburg · 32 mi away

1.58 MGD

Ridaught Landing Regional WWTF

Middleburg · 33 mi away

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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated February 2025.

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