PORT ORANGE WWTF
NPDES ID: FL0020559
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 5 effluent violations.
Violations
April 30, 2026
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 7 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
40% over limit
Discharged 4.2 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
LC50 Static Renewal 96Hr Acute Cyprinella leedsi
32% over limit
Discharged 68.32 % against a permitted limit of 100 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
1% over limit
Discharged 20.2 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
8% over limit
Discharged 6.5 mg/L against a permitted limit of 6 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
March 31, 2026
LC50 Static Renewal 96Hr Acute Cyprinella leedsi
21% over limit
Discharged 79 % against a permitted limit of 100 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
23% over limit
Discharged 3.7 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
Limit violation
Discharged 0.14 mg/L against a permitted limit of 0 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, carbonaceous [5 day, 20 C]
24% over limit
Discharged 6.2 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, carbonaceous [5 day, 20 C]
8% over limit
Discharged 5.4 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, carbonaceous [5 day, 20 C]
26% over limit
Discharged 6.3 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, carbonaceous [5 day, 20 C]
4% over limit
Discharged 7.8 mg/L against a permitted limit of 7.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
54% over limit
Discharged 15.4 mg/L against a permitted limit of 10 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
32% over limit
Discharged 6.6 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 32.2 mg/L against a permitted limit of 30 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
October 31, 2025
BOD, carbonaceous [5 day, 20 C]
5% over limit
Discharged 7.9 mg/L against a permitted limit of 7.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
16% over limit
Discharged 5.8 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
BOD, carbonaceous [5 day, 20 C]
3% over limit
Discharged 10.3 mg/L against a permitted limit of 10 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
21% over limit
Discharged 6.04 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
7% over limit
Discharged 3.2 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Flow, in conduit or thru treatment plant
28% over limit
Discharged 1.276 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Flow, in conduit or thru treatment plant
28% over limit
Discharged 1.276 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Flow, in conduit or thru treatment plant
28% over limit
Discharged 1.276 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Flow, in conduit or thru treatment plant
38% over limit
Discharged 1.374 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Flow, in conduit or thru treatment plant
27% over limit
Discharged 1.268 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Flow, in conduit or thru treatment plant
26% over limit
Discharged 1.261 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Flow, in conduit or thru treatment plant
21% over limit
Discharged 1.21 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Flow, in conduit or thru treatment plant
29% over limit
Discharged 1.289 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Flow, in conduit or thru treatment plant
43% over limit
Discharged 1.428 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
92% over limit
Discharged 1.92 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
24% over limit
Discharged 6.2 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Enterococci: group D, MF trans, M-E, EIA
426% over limit
Discharged 547.5 MPN/100mL against a permitted limit of 104 MPN/100mL (MAXIMUM)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
39% over limit
Discharged 1.388 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
690% over limit
Discharged 15.8 mg/L against a permitted limit of 2 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
205% over limit
Discharged 4.57 mg/L against a permitted limit of 1.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
7% over limit
Discharged 3.2 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
55% over limit
Discharged 9.3 mg/L against a permitted limit of 6 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
September 30, 2024
Flow, in conduit or thru treatment plant
23% over limit
Discharged 1.226 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Flow, in conduit or thru treatment plant
29% over limit
Discharged 1.29 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Phosphorus, total [as P]
65% over limit
Discharged 9.9 mg/L against a permitted limit of 6 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
29% over limit
Discharged 1.291 MGD against a permitted limit of 0.999 MGD (ANNL AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
53% over limit
Discharged 24.5 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
150% over limit
Discharged 7.5 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrite + Nitrate total [as N]
23% over limit
Discharged 24.5 mg/L against a permitted limit of 20 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrite + Nitrate total [as N]
70% over limit
Discharged 20.4 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
145% over limit
Discharged 4.9 mg/L against a permitted limit of 2 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
260% over limit
Discharged 3.6 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)