What is the largest wastewater treatment plant in Florida?

Central District Wastewater Treatment Plant in Key Biscayne, treating an average of 194.6 MGD under NPDES permit FL0024805. Jea Buckman WWTP in Jacksonville is second at 24.34 MGD.

How much wastewater do Florida’s largest plants treat?

The 41 largest plants treat 337 MGD combined, 100% of the flow reported by all 60 publicly owned plants in Florida.

How is plant size measured?

By reported average daily flow in million gallons per day (MGD) from EPA discharge monitoring reports, the standard measure of a plant’s size. Design capacity, the flow a plant is permitted to treat, is usually higher and is shown on each profile.

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The 41 largest wastewater treatment plants in Florida

Name: Largest wastewater treatment plants in Florida
Creator: Klarifi
License: https://klarifi.io/terms-of-service

Ranked by average flow · 337 MGD combined · 100% of the state's reported flow

Central District Wastewater Treatment Plant in Key Biscayne is the largest publicly owned wastewater treatment plant in Florida by reported average flow, treating about 194.6 million gallons per day. The 41 plants below treat 337 MGD between them, 100% of the flow reported by all 60 plants in the state, and serve about 1,339,580 people. Every plant links to its profile with permit, technology and compliance data.

All plants in Florida →The 100 largest US plants →Florida NPDES permits →

The 41 largest publicly owned wastewater treatment plants in Florida by average flow (MGD), with population served, NPDES permit, expiry, treatment technology and three-year violation count.
#	Facility	City	Avg flow (MGD)	Population	NPDES permit	Expires	Technology	Violations (3y)
1	Central District Wastewater Treatment Plant	Key Biscayne	194.6	—	FL0024805	Dec 2025	Biogas silos, Biogas balloons	67
2	Jea Buckman WWTP	Jacksonville	24.34	243,298	FL0026000	Dec 2030	Clarifiers, Uncovered lagoons, Biogas silos, Biogas balloons	69
3	Boca Raton, City Of - WWTP	Boca Raton	16.29	97,422	FL0026344	Sep 2028	Clarifiers, Aerated lagoons, Biogas silos, Biogas balloons	8
4	Southwest District WWTF	Jacksonville	12.59	102,242	FL0026468	Aug 2029	Clarifiers, Aerated lagoons, Uncovered lagoons	4
5	Everest Parkway WRF	Cape Coral	9.29	96,494	FL0030007	Sep 2027	Clarifiers	0
6	Wastewater Treatment Facility	Sarasota	8.56	54,764	FL0040771	Sep 2026	Clarifiers	144
7	Bradenton, City Of - Bradenton WWTP	Bradenton	7.27	55,698	FL0021369	Mar 2031	—	186
8	Plant City WRF	Plant City	7.1	39,764	FL0026557	Feb 2031	Clarifiers, Aerated lagoons, Uncovered lagoons, Carrousels / oxidation ditches	7
9	City Of Winter Haven - Wastewater Treatment Plant 3	Winter Haven	6.04	39,867	FL0036048	Sep 2026	Clarifiers	35
10	Ecua - Bayou Marcus Water Reclamation Facility	Pensacola	5.88	40,916	FL0031801	Mar 2030	Clarifiers, Aerated lagoons, Carrousels / oxidation ditches	63
11	Marshall St. Advanced Pollution Control Facility	Clearwater	5.68	41,155	FL0021857	Dec 2027	Clarifiers, Biogas silos	67
12	Blacks Ford WRF	Jacksonville	4.35	44,917	FL0174441	Jun 2031	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches, Biogas silos	4
13	Jea Greenland WWTF	Jacksonville	3.74	—	FL0A00023	Feb 2027	Uncovered lagoons, Carrousels / oxidation ditches	0
14	R. Dwayne Huffman Reclaimed Water Plant	Port Orange	3.48	62,948	FL0020559	Jun 2030	Clarifiers	67
15	City Of Dunedin Wastewater Treatment Plant	Dunedin	3.46	35,321	FL0021326	Apr 2030	Clarifiers, Uncovered lagoons, Biogas balloons	2
16	Clearwater, City Of - East Awwtf	Clearwater	3.04	20,578	FL0021865	Jul 2027	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches	38
17	Indian River County - West WWTF	Vero Beach	2.75	69,300	FL0041637	Dec 2027	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches	30
18	Northwest Wastewater Treatment Plant	St Augustine	2.6	58,355	FL0670651	Dec 2026	Clarifiers, Uncovered lagoons	69
19	Nassau Regional WWTF	Yulee	2.22	14,972	FL0116793	Jan 2031	Uncovered lagoons	247
20	Oldsmar City Of	Oldsmar	1.73	14,898	FL0027651	Jun 2030	Clarifiers, Uncovered lagoons	16
21	Miller Street Rmf	Middleburg	1.65	70,042	FL0025151	Aug 2029	Uncovered lagoons, Biogas balloons	2
22	Palmetto WWTP	Palmetto	1.41	13,323	FL0020401	Jun 2031	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches, Biogas silos	9
23	Smyrna Beach, City Of - New Smyrna Beach WRF	New Smyrna Beach	1.2	25,637	FL0172090	Oct 2029	Clarifiers, Carrousels / oxidation ditches	12
24	Ecua - Pensacola Beach WRF	Pensacola Beach	0.96	8,584	FL0024007	Feb 2026	Clarifiers	5
25	Orange Park, Town Of - WWTF	Orange Park	0.96	9,614	FL0023922	Apr 2030	Uncovered lagoons	40
26	Edgewater Wastewater Treatment Plant	Edgewater	0.77	21,459	FL0021431	Oct 2027	—	7
27	City Of Macclenny Wastewater Facility	Macclenny	0.69	6,480	FL0040495	Jan 2030	Clarifiers, Uncovered lagoons	427
28	Ponte Vedra WWTF	Ponte Vedra Beach	0.5	5,951	FL0117951	Mar 2029	Aerated lagoons, Uncovered lagoons	464
29	Graceville, City Of - Graceville Advanced WWTF	Graceville	0.48	4,694	FL0038555	Sep 2023	Clarifiers	13
30	Century, Town Of - WWTF	Century	0.47	2,518	FL0032468	Jun 2027	Uncovered lagoons	295
31	Mulberry STP	Mulberry	0.4	3,952	FL0020338	Nov 2026	Clarifiers, Uncovered lagoons	10
32	Hilliard WWTF	Hilliard	0.33	2,920	FL0043079	Feb 2030	—	104
33	Bunnell WWTP	Bunnell	0.31	3,956	FL0020907	Sep 2027	Clarifiers, Aerated lagoons, Carrousels / oxidation ditches	23
34	Green Cove Spgs-Reynolds Ind	Green Cove Springs	0.26	4,578	FL0030210	Jul 2024	Clarifiers	5
35	Green Cove Springs, City Of - Harbor Road WWTF	Green Cove Springs	0.26	9,784	FL0635618	Mar 2030	Clarifiers, Carrousels / oxidation ditches	8
36	Navarre Beach WWTP	Navarre	0.24	3,025	FL0023981	Nov 2030	Clarifiers, Aerated lagoons, Uncovered lagoons, Carrousels / oxidation ditches	10
37	Baldwin WWTF	Jacksonville	0.2	1,145	FL0027812	Aug 2028	—	699
38	Chattahoochee, City Of - WWTP	Chattahoochee	0.19	2,955	FL0027669	Nov 2030	Clarifiers	6
39	Callahan, City Of - Callahan WWTF	Callahan	0.14	1,646	FL0038407	May 2028	Clarifiers, Carrousels / oxidation ditches	21
40	Hastings, Town Of WWTF	Hastings	0.09	2,334	FL0042315	Nov 2025	Clarifiers, Uncovered lagoons	0
41	Wewahitchka, City Of - Wewahitchka WWTP	Wewahitchka	0.08	2,074	FL0020125	May 2025	Uncovered lagoons	128

Largest plants in Florida: 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.

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