SUFFERN (V) STP
NPDES ID: NY0022748
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: 7 effluent violations.
Violations
May 31, 2026
Copper, total [as Cu]
104% over limit
Discharged 0.053 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 33.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
14% over limit
Discharged 51.3 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
505% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
87% over limit
Discharged 0.0485 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
60% over limit
Discharged 76 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
47% over limit
Discharged 44.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, suspended percent removal
13% over limit
Discharged 83 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
32% over limit
Discharged 0.0343 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
505% over limit
Discharged 2419 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
1% over limit
Discharged 30.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
107% over limit
Discharged 12.6 mg/L against a permitted limit of 6.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
126% over limit
Discharged 13.8 mg/L against a permitted limit of 6.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Copper, total [as Cu]
65% over limit
Discharged 0.0428 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, total [as Cu]
38% over limit
Discharged 0.036 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Copper, total [as Cu]
46% over limit
Discharged 0.038 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
BOD, carbonaceous [5 day, 20 C]
17% over limit
Discharged 11.7 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
505% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
31% over limit
Discharged 0.034 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
194% over limit
Discharged 587 MPN/100mL against a permitted limit of 200 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
July 31, 2025
Coliform, fecal general
505% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
7% over limit
Discharged 10.7 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
529% over limit
Discharged 1257 MPN/100mL against a permitted limit of 200 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
38% over limit
Discharged 0.0358 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Copper, total [as Cu]
31% over limit
Discharged 0.034 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Copper, total [as Cu]
4% over limit
Discharged 0.027 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
25% over limit
Discharged 7.6 mg/L against a permitted limit of 6.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
42% over limit
Discharged 0.037 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Copper, total [as Cu]
50% over limit
Discharged 0.039 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Copper, total [as Cu]
23% over limit
Discharged 0.032 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
59% over limit
Discharged 58.8 mg/L against a permitted limit of 37 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
31% over limit
Discharged 8 mg/L against a permitted limit of 6.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Copper, total [as Cu]
54% over limit
Discharged 0.04 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2024
Copper, total [as Cu]
42% over limit
Discharged 0.037 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2024
Copper, total [as Cu]
27% over limit
Discharged 0.033 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Copper, total [as Cu]
4% over limit
Discharged 0.027 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Copper, total [as Cu]
27% over limit
Discharged 0.033 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2024
Copper, total [as Cu]
23% over limit
Discharged 0.032 mg/L against a permitted limit of 0.026 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)