SEWARD (T) STP
NPDES ID: NY0212199
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 2 reporting violations.
Violations
April 30, 2026
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.016 MGD (MO AVG)
DMR, Limited - Overdue
March 31, 2026
BOD, 5-day, 20 deg. C
60% over limit
Discharged 8 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
4% over limit
Discharged 9.4 mg/L against a permitted limit of 9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.016 MGD (MO AVG)
DMR, Limited - Overdue
February 28, 2026
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.016 MGD (MO AVG)
DMR, Limited - Overdue
January 31, 2026
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.016 MGD (MO AVG)
DMR, Limited - Overdue
December 31, 2025
Solids, total suspended
40% over limit
Discharged 14 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
212% over limit
Discharged 28.1 mg/L against a permitted limit of 9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.016 MGD (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
340% over limit
Discharged 22 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.016 MGD (MO AVG)
DMR, Limited - Overdue
June 30, 2025
BOD, 5-day, 20 deg. C
480% over limit
Discharged 29 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
145% over limit
Discharged 24.5 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
137% over limit
Discharged 21.3 mg/L against a permitted limit of 9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
147% over limit
Discharged 22.2 mg/L against a permitted limit of 9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
67% over limit
Discharged 16.7 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
420% over limit
Discharged 26 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Oxygen, dissolved [DO]
47% over limit
Discharged 3.73 mg/L against a permitted limit of 7 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
September 30, 2024
Oxygen, dissolved [DO]
34% over limit
Discharged 4.59 mg/L against a permitted limit of 7 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)