NPDES ID: PA0062103
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: 4 effluent violations, 28 reporting violations.
Violations
April 30, 2026
Nitrogen, ammonia total [as N]
189% over limit
Discharged 9.46135992 kg/d against a permitted limit of 3.26879997 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
30% over limit
Discharged 0.026 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
40% over limit
Discharged 0.014 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
469% over limit
Discharged 30.72 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 18.15999985 kg/d (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 kg/d against a permitted limit of 3.26879997 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Coliform, fecal general
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 10000 MPN/100mL (INST MAX)
DMR, Limited - Overdue
Copper, total [as Cu]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 27.23999977 kg/d (WKLY AVG)
DMR, Limited - Overdue
Copper, total [as Cu]
0% over limit
Discharged 0 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 7 mg/L (INST MIN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 kg/d against a permitted limit of 15.16359987 kg/d (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.13 mg/L (INST MAX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Copper, total [as Cu]
0% over limit
Discharged 0 kg/d against a permitted limit of 0.011804 kg/d (DAILY MX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 kg/d against a permitted limit of 24.2435998 kg/d (WKLY AVG)
DMR, Limited - Overdue
Copper, total [as Cu]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Overdue
Coliform, fecal general
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 2000 MPN/100mL (GEO MEAN)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 40 mg/L (WKLY AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (INST MIN)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
February 28, 2026
Copper, total [as Cu]
220% over limit
Discharged 0.032 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
522% over limit
Discharged 33.6 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
163% over limit
Discharged 8.58059993 kg/d against a permitted limit of 3.26879997 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
75% over limit
Discharged 0.035 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
38% over limit
Discharged 0.008172 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Copper, total [as Cu]
150% over limit
Discharged 0.025 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
15% over limit
Discharged 0.00681 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
110% over limit
Discharged 6.85539994 kg/d against a permitted limit of 3.26879997 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
35% over limit
Discharged 0.027 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
383% over limit
Discharged 26.1 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Copper, total [as Cu]
15% over limit
Discharged 0.023 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
148% over limit
Discharged 13.4 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
100% over limit
Discharged 0.02 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
11% over limit
Discharged 3.63199997 kg/d against a permitted limit of 3.26879997 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Copper, total [as Cu]
10% over limit
Discharged 0.011 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, total [as Cu]
62% over limit
Discharged 0.0162 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Copper, total [as Cu]
110% over limit
Discharged 0.021 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
15% over limit
Discharged 0.023 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Copper, total [as Cu]
25% over limit
Discharged 0.025 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
120% over limit
Discharged 0.022 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Copper, total [as Cu]
75% over limit
Discharged 0.035 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
140% over limit
Discharged 0.024 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Copper, total [as Cu]
550% over limit
Discharged 0.065 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
961% over limit
Discharged 19.1 mg/L against a permitted limit of 1.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
585% over limit
Discharged 0.137 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
488% over limit
Discharged 6.40139995 kg/d against a permitted limit of 1.08959999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
323% over limit
Discharged 0.04994 kg/d against a permitted limit of 0.011804 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
285% over limit
Discharged 0.0227 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
729% over limit
Discharged 9.03459992 kg/d against a permitted limit of 1.08959999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
50% over limit
Discharged 0.017706 kg/d against a permitted limit of 0.011804 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
160% over limit
Discharged 0.052 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1200% over limit
Discharged 23.4 mg/L against a permitted limit of 1.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
330% over limit
Discharged 0.043 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
131% over limit
Discharged 0.01362 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Copper, total [as Cu]
300% over limit
Discharged 0.04 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
69% over limit
Discharged 0.009988 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
457% over limit
Discharged 30.1 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
20% over limit
Discharged 54 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
115% over limit
Discharged 0.043 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
37% over limit
Discharged 41 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
128% over limit
Discharged 7.44559994 kg/d against a permitted limit of 3.26879997 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Copper, total [as Cu]
115% over limit
Discharged 0.012712 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
419% over limit
Discharged 28 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
143% over limit
Discharged 7.94499993 kg/d against a permitted limit of 3.26879997 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
135% over limit
Discharged 0.047 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
340% over limit
Discharged 0.044 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
46% over limit
Discharged 0.017252 kg/d against a permitted limit of 0.011804 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Copper, total [as Cu]
290% over limit
Discharged 0.039 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
120% over limit
Discharged 0.044 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
314% over limit
Discharged 22.35 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
68% over limit
Discharged 5.49339995 kg/d against a permitted limit of 3.26879997 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
62% over limit
Discharged 0.009534 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Nitrogen, ammonia total [as N]
143% over limit
Discharged 13.1 mg/L against a permitted limit of 5.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
210% over limit
Discharged 0.031 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
60% over limit
Discharged 0.032 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
54% over limit
Discharged 0.00908 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Copper, total [as Cu]
20% over limit
Discharged 0.024 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
54% over limit
Discharged 0.00908 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
130% over limit
Discharged 0.023 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Copper, total [as Cu]
160% over limit
Discharged 0.026 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
45% over limit
Discharged 0.029 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2024
Copper, total [as Cu]
45% over limit
Discharged 0.029 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
150% over limit
Discharged 0.025 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Copper, total [as Cu]
180% over limit
Discharged 0.028 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
40% over limit
Discharged 0.028 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Copper, total [as Cu]
190% over limit
Discharged 0.029 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
15% over limit
Discharged 0.00681 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
125% over limit
Discharged 0.045 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2024
Copper, total [as Cu]
55% over limit
Discharged 0.031 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
8% over limit
Discharged 0.006356 kg/d against a permitted limit of 0.005902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
190% over limit
Discharged 0.029 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
317% over limit
Discharged 4.53999996 kg/d against a permitted limit of 1.08959999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1011% over limit
Discharged 20 mg/L against a permitted limit of 1.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)