AMPHENOL CORP-AEROSPACE OPERATIONS
NPDES ID: NY0003824
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: 3 effluent violations.
Violations
March 31, 2026
Chromium, total [as Cr]
844% over limit
Discharged 4.72 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Chromium, total [as Cr]
582% over limit
Discharged 3.41 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Chromium, total [as Cr]
476% over limit
Discharged 2.88 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Chromium, total [as Cr]
222% over limit
Discharged 1.61 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Chromium, total [as Cr]
87% over limit
Discharged 0.934 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Chromium, total [as Cr]
216% over limit
Discharged 1.58 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Chromium, total [as Cr]
276% over limit
Discharged 1.88 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
23% over limit
Discharged 1.11 mg/L against a permitted limit of 0.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Chromium, total [as Cr]
190% over limit
Discharged 1.45 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Chromium, total [as Cr]
1890% over limit
Discharged 9.95 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Toxicity [chronic], Ceriodaphnia dubia
2080% over limit
Discharged 21.8 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
1% over limit
Discharged 0.911 mg/L against a permitted limit of 0.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
772% over limit
Discharged 4.36 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Toxicity [chronic], Ceriodaphnia dubia
599% over limit
Discharged 6.99 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
654% over limit
Discharged 3.77 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Toxicity [acute], Pimephales promelas [Fathead Minnow]
6300% over limit
Discharged 19.2 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Numeric Violation
Solids, settleable
200% over limit
Discharged 0.0003 mg/L against a permitted limit of 0.0001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
1566% over limit
Discharged 8.33 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Chromium, total [as Cr]
1552% over limit
Discharged 8.26 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Toxicity [acute], Ceriodaphnia dubia
1567% over limit
Discharged 5 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [chronic], Ceriodaphnia dubia
1720% over limit
Discharged 18.2 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [acute], Pimephales promelas [Fathead Minnow]
233% over limit
Discharged 1 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
February 28, 2025
Toxicity [chronic], Pimephales promelas [Fathead Minnow]
130% over limit
Discharged 2.3 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.6 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Numeric Violation
Toxicity [chronic], Ceriodaphnia dubia
6570% over limit
Discharged 66.7 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [acute], Ceriodaphnia dubia
3233% over limit
Discharged 10 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [acute], Pimephales promelas [Fathead Minnow]
310% over limit
Discharged 1.23 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
2160% over limit
Discharged 11.3 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Toxicity [chronic], Ceriodaphnia dubia
21600% over limit
Discharged 217 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [acute], Pimephales promelas [Fathead Minnow]
233% over limit
Discharged 1 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
2060% over limit
Discharged 10.8 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Toxicity [acute], Ceriodaphnia dubia
7033% over limit
Discharged 21.4 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
December 31, 2024
trans-1,2-Dichloroethylene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Overdue
Chromium, total [as Cr]
2700% over limit
Discharged 14 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Nickel, total [as Ni]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Chromium, total [as Cr]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Toxicity [acute], Pimephales promelas [Fathead Minnow]
233% over limit
Discharged 1 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Cadmium, total [as Cd]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Toxicity [chronic], Ceriodaphnia dubia
1090% over limit
Discharged 11.9 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 0 deg F (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 8.5 SU (DAILY MX)
DMR, Limited - Overdue
Barium, total [as Ba]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Toxicity [acute], Ceriodaphnia dubia
1567% over limit
Discharged 5 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Hardness, total [as CaCO3]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Trichloroethylene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Overdue
Aluminum, total [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
November 30, 2024
Toxicity [acute], Ceriodaphnia dubia
9300% over limit
Discharged 28.2 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
2920% over limit
Discharged 15.1 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Toxicity [chronic], Pimephales promelas [Fathead Minnow]
185% over limit
Discharged 2.85 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [acute], Pimephales promelas [Fathead Minnow]
500% over limit
Discharged 1.8 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [chronic], Ceriodaphnia dubia
24900% over limit
Discharged 250 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
October 31, 2024
Toxicity [chronic], Ceriodaphnia dubia
22100% over limit
Discharged 222 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [acute], Ceriodaphnia dubia
5300% over limit
Discharged 16.2 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [acute], Pimephales promelas [Fathead Minnow]
233% over limit
Discharged 1 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
6760% over limit
Discharged 34.3 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Toxicity [chronic], Pimephales promelas [Fathead Minnow]
33% over limit
Discharged 1.33 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
September 30, 2024
Toxicity [acute], Ceriodaphnia dubia
2610% over limit
Discharged 8.13 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [chronic], Pimephales promelas [Fathead Minnow]
43% over limit
Discharged 1.43 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
3440% over limit
Discharged 17.7 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Toxicity [chronic], Ceriodaphnia dubia
7480% over limit
Discharged 75.8 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [acute], Pimephales promelas [Fathead Minnow]
317% over limit
Discharged 1.25 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, settleable
900% over limit
Discharged 0.001 mg/L against a permitted limit of 0.0001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Phosphorus, total [as P]
0% over limit
Discharged 0.94835201 kg/d against a permitted limit of 0.94364001 kg/d (12MO TOT)
DMR, Limited - Numeric Violation
Toxicity [acute], Pimephales promelas [Fathead Minnow]
233% over limit
Discharged 1 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Toxicity [chronic], Ceriodaphnia dubia
6070% over limit
Discharged 61.7 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Chromium, total [as Cr]
5120% over limit
Discharged 26.1 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Toxicity [acute], Ceriodaphnia dubia
5233% over limit
Discharged 16 toxic against a permitted limit of 0.3 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, settleable
1900% over limit
Discharged 0.002 mg/L against a permitted limit of 0.0001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Toxicity [chronic], Pimephales promelas [Fathead Minnow]
171% over limit
Discharged 2.71 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (18 hours ago)