HADLEY (T) STP
NPDES ID: NY0020184
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 effluent violations.
Violations
May 31, 2026
Oil & Grease
52% over limit
Discharged 22.8 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Oil & Grease
15% over limit
Discharged 17.3 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Oil & Grease
61% over limit
Discharged 24.2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Oil & Grease
77% over limit
Discharged 26.6 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Oil & Grease
94% over limit
Discharged 29.1 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Oil & Grease
61% over limit
Discharged 24.2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Oil & Grease
53% over limit
Discharged 22.9 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, nitrate total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
September 30, 2025
Nitrogen, nitrate total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil & Grease
45% over limit
Discharged 21.8 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Oil & Grease
21% over limit
Discharged 18.2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Oil & Grease
35% over limit
Discharged 20.3 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Oil & Grease
9% over limit
Discharged 16.3 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Oil & Grease
53% over limit
Discharged 23 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Oil & Grease
110% over limit
Discharged 31.5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Oil & Grease
81% over limit
Discharged 27.1 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Oil & Grease
33% over limit
Discharged 20 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Oil & Grease
88% over limit
Discharged 28.2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2024
Oil & Grease
8% over limit
Discharged 16.2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Oil & Grease
115% over limit
Discharged 32.2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Oil & Grease
1% over limit
Discharged 15.2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2024
Oil & Grease
39% over limit
Discharged 20.8 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)