MCKENZIE STP
NPDES ID: TN0020613
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: 29 effluent violations.
Violations
May 31, 2026
Phosphorus, total [as P]
209% over limit
Discharged 11.66039716 kg/d against a permitted limit of 3.77456004 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
200% over limit
Discharged 0.03 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
5% over limit
Discharged 6.31059995 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
374% over limit
Discharged 3.79 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
122% over limit
Discharged 52.75365284 kg/d against a permitted limit of 23.75220024 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.2 SU against a permitted limit of 6 SU (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
466% over limit
Discharged 9.06 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas
50% over limit
Discharged 46 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
386% over limit
Discharged 5.83 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
1700% over limit
Discharged 0.36 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
147% over limit
Discharged 1011 MPN/100mL against a permitted limit of 410 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia
75% over limit
Discharged 23 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
1583% over limit
Discharged 40.4 mg/L against a permitted limit of 2.4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
216% over limit
Discharged 38.36299968 kg/d against a permitted limit of 12.1217999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1338% over limit
Discharged 46 mg/L against a permitted limit of 3.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
244% over limit
Discharged 62.51579947 kg/d against a permitted limit of 18.15999985 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
100% over limit
Discharged 0.02 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
180% over limit
Discharged 42 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
211% over limit
Discharged 11.74884016 kg/d against a permitted limit of 3.77456004 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
126% over limit
Discharged 53.58252961 kg/d against a permitted limit of 23.75220024 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1400% over limit
Discharged 24 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
305% over limit
Discharged 81 mg/L against a permitted limit of 20 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
53% over limit
Discharged 77 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
1856% over limit
Discharged 31.3 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia
74% over limit
Discharged 23.81 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
292% over limit
Discharged 78.3 mg/L against a permitted limit of 20 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
16% over limit
Discharged 4.2 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
30% over limit
Discharged 22 % against a permitted limit of 40 % (DAILY MN)
DMR, Limited - Numeric Violation
IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas
18% over limit
Discharged 75.81 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
3% over limit
Discharged 117.44979901 kg/d against a permitted limit of 113.49999905 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
332% over limit
Discharged 52.34619956 kg/d against a permitted limit of 12.1217999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
249% over limit
Discharged 63.42379947 kg/d against a permitted limit of 18.15999985 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1669% over limit
Discharged 56.6 mg/L against a permitted limit of 3.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
224% over limit
Discharged 81 mg/L against a permitted limit of 25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
380% over limit
Discharged 72 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
17% over limit
Discharged 30 % against a permitted limit of 40 % (DAILY MN)
DMR, Limited - Numeric Violation
Chlorine, total residual
200% over limit
Discharged 0.03 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
247% over limit
Discharged 48 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
199% over limit
Discharged 11.27164798 kg/d against a permitted limit of 3.77456004 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
400% over limit
Discharged 0.1 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
47% over limit
Discharged 78 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1458% over limit
Discharged 37.4 mg/L against a permitted limit of 2.4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
113% over limit
Discharged 50.47785974 kg/d against a permitted limit of 23.75220024 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
650% over limit
Discharged 24 mg/L against a permitted limit of 3.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1150% over limit
Discharged 20 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
21% over limit
Discharged 11.47096967 kg/d against a permitted limit of 9.50460009 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
235% over limit
Discharged 67 mg/L against a permitted limit of 20 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
37% over limit
Discharged 18 % against a permitted limit of 40 % (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
174% over limit
Discharged 49.71299958 kg/d against a permitted limit of 18.15999985 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
867% over limit
Discharged 23.2 mg/L against a permitted limit of 2.4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
224% over limit
Discharged 81 mg/L against a permitted limit of 25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
207% over limit
Discharged 46 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
265% over limit
Discharged 44.26499963 kg/d against a permitted limit of 12.1217999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
147% over limit
Discharged 63 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, carbonaceous [5 day, 20 C]
5% over limit
Discharged 159.53559866 kg/d against a permitted limit of 151.63599873 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
267% over limit
Discharged 45 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1779% over limit
Discharged 45.1 mg/L against a permitted limit of 2.4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
398% over limit
Discharged 60.38199949 kg/d against a permitted limit of 12.1217999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
18% over limit
Discharged 11.24680011 kg/d against a permitted limit of 9.50460009 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
347% over limit
Discharged 67 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 124.75919895 kg/d against a permitted limit of 113.49999905 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
300% over limit
Discharged 80 mg/L against a permitted limit of 20 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1900% over limit
Discharged 32 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
260% over limit
Discharged 90 mg/L against a permitted limit of 25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1681% over limit
Discharged 57 mg/L against a permitted limit of 3.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
43% over limit
Discharged 14 % against a permitted limit of 40 % (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
345% over limit
Discharged 80.76659932 kg/d against a permitted limit of 18.15999985 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Phosphorus, total [as P]
8% over limit
Discharged 10.22913582 kg/d against a permitted limit of 9.50460009 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
107% over limit
Discharged 69 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
148% over limit
Discharged 44.94599962 kg/d against a permitted limit of 18.15999985 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
108% over limit
Discharged 52 mg/L against a permitted limit of 25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
688% over limit
Discharged 25.2 mg/L against a permitted limit of 3.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1244% over limit
Discharged 21.5 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
160% over limit
Discharged 39 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
145% over limit
Discharged 49 mg/L against a permitted limit of 20 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
879% over limit
Discharged 23.5 mg/L against a permitted limit of 2.4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
1600% over limit
Discharged 0.34 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
228% over limit
Discharged 39.81579967 kg/d against a permitted limit of 12.1217999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, carbonaceous [5 day, 20 C]
44% over limit
Discharged 36 mg/L against a permitted limit of 25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
5% over limit
Discharged 10.01449194 kg/d against a permitted limit of 9.50460009 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia
80% over limit
Discharged 18.301 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
80% over limit
Discharged 27 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1363% over limit
Discharged 23.4 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
159% over limit
Discharged 46.98899961 kg/d against a permitted limit of 18.15999985 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1008% over limit
Discharged 26.6 mg/L against a permitted limit of 2.4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
157% over limit
Discharged 2420 MPN/100mL against a permitted limit of 941 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
828% over limit
Discharged 29.7 mg/L against a permitted limit of 3.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
350% over limit
Discharged 0.09 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
75% over limit
Discharged 35 mg/L against a permitted limit of 20 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
47% over limit
Discharged 78 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
252% over limit
Discharged 42.72139964 kg/d against a permitted limit of 12.1217999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Chrpimephales
32% over limit
Discharged 62.113 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
1992% over limit
Discharged 25.1 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
592% over limit
Discharged 41.81385365 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
80% over limit
Discharged 27 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
407% over limit
Discharged 46.04467961 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1625% over limit
Discharged 27.6 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
7% over limit
Discharged 1011 MPN/100mL against a permitted limit of 941 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
300% over limit
Discharged 0.08 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
70% over limit
Discharged 17 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
65% over limit
Discharged 207.3 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2618% over limit
Discharged 21.74 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
50% over limit
Discharged 30 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
E. coli
325% over limit
Discharged 536.05 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
70% over limit
Discharged 17 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
484% over limit
Discharged 52.99087955 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
684% over limit
Discharged 47.3426656 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia
38% over limit
Discharged 56.68 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
30% over limit
Discharged 26 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Chrpimephales
28% over limit
Discharged 66.48 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
Chlorine, total residual
200% over limit
Discharged 0.06 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2375% over limit
Discharged 29.7 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3265% over limit
Discharged 26.92 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
6% over limit
Discharged 4.7 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Numeric Violation
E. coli
7% over limit
Discharged 1011 MPN/100mL against a permitted limit of 941 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1863% over limit
Discharged 31.4 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
2361% over limit
Discharged 29.53 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia
38% over limit
Discharged 56.79 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
590% over limit
Discharged 41.67583765 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
60% over limit
Discharged 16 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
7% over limit
Discharged 1011 MPN/100mL against a permitted limit of 941 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
215% over limit
Discharged 396.777 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
40% over limit
Discharged 79 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 24 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3338% over limit
Discharged 27.5 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Chrpimephales
9% over limit
Discharged 83.43 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
436% over limit
Discharged 48.65063959 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1938% over limit
Discharged 32.6 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
18% over limit
Discharged 53 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
267% over limit
Discharged 33.35537972 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
73% over limit
Discharged 74 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1556% over limit
Discharged 26.5 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
47% over limit
Discharged 12 % against a permitted limit of 40 % (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2067% over limit
Discharged 26 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2700% over limit
Discharged 22.4 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
418% over limit
Discharged 31.24927374 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
1756% over limit
Discharged 22.275 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
35% over limit
Discharged 19 % against a permitted limit of 40 % (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1413% over limit
Discharged 24.2 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
73% over limit
Discharged 74 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
429% over limit
Discharged 31.96023773 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
31% over limit
Discharged 80.3 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
273% over limit
Discharged 33.90006622 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2300% over limit
Discharged 19.2 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
30% over limit
Discharged 26 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 12 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
May 31, 2025
BOD, carbonaceous, percent removal
20% over limit
Discharged 82 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
95% over limit
Discharged 39 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
260% over limit
Discharged 32.72431973 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1463% over limit
Discharged 18.75 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1588% over limit
Discharged 13.5 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
93% over limit
Discharged 29 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 14 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1238% over limit
Discharged 21.4 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
359% over limit
Discharged 27.74530177 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Nitrogen, ammonia total [as N]
659% over limit
Discharged 24.3 mg/L against a permitted limit of 3.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
506% over limit
Discharged 9.7 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
846% over limit
Discharged 22.7 mg/L against a permitted limit of 2.4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
69% over limit
Discharged 20.47766983 kg/d against a permitted limit of 12.1217999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
32% over limit
Discharged 33 mg/L against a permitted limit of 25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
75% over limit
Discharged 31.71643973 kg/d against a permitted limit of 18.15999985 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
184% over limit
Discharged 6.82 mg/L against a permitted limit of 2.4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
149% over limit
Discharged 7.96 mg/L against a permitted limit of 3.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
SSO, Wet Weather
Limit violation
Discharged 0.09870001 occur/d against a permitted limit of 0 occur/d (MO TOTAL)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
159% over limit
Discharged 4.14 mg/L against a permitted limit of 1.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
441% over limit
Discharged 8.65 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
488% over limit
Discharged 7.05 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
32% over limit
Discharged 12.0082999 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
201% over limit
Discharged 2.41 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
981% over limit
Discharged 17.3 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1155% over limit
Discharged 15.06 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
190% over limit
Discharged 26.30475978 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
107% over limit
Discharged 31 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
50% over limit
Discharged 15 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
145% over limit
Discharged 49 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia
62% over limit
Discharged 34.65 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
261% over limit
Discharged 21.78745982 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1431% over limit
Discharged 12.25 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
143% over limit
Discharged 306.8 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
36% over limit
Discharged 12.3033999 kg/d against a permitted limit of 9.07999992 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
87% over limit
Discharged 28 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
856% over limit
Discharged 15.3 mg/L against a permitted limit of 1.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
41% over limit
Discharged 177.3 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
8% over limit
Discharged 6.50581995 kg/d against a permitted limit of 6.03819995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
448% over limit
Discharged 4.381 mg/L against a permitted limit of 0.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
596% over limit
Discharged 8.3575 mg/L against a permitted limit of 1.2 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia
85% over limit
Discharged 14.226 % against a permitted limit of 92 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
55% over limit
Discharged 31 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
30% over limit
Discharged 13 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)