MISSOURI AND NORTHERN ARKANSAS RAILROAD
NPDES ID: MO0139947
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: 24 effluent violations, 2 single-event violations.
Violations
May 31, 2026
Chlorine, total residual
62% over limit
Discharged 0.21000001 mg/L against a permitted limit of 0.13000001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
62% over limit
Discharged 0.21000001 mg/L against a permitted limit of 0.13000001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
60% over limit
Discharged 16 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
53% over limit
Discharged 0.763 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
7% over limit
Discharged 16 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
53% over limit
Discharged 0.763 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total recoverable
96% over limit
Discharged 0.01 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
171% over limit
Discharged 341 MPN/100mL against a permitted limit of 126 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
April 30, 2026
Phosphorus, total [as P]
472% over limit
Discharged 2.86 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
220% over limit
Discharged 192 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
310% over limit
Discharged 61.5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total recoverable
276% over limit
Discharged 0.0192 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Lead, total recoverable
86% over limit
Discharged 0.0192 mg/L against a permitted limit of 0.0103 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
472% over limit
Discharged 2.86 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
92% over limit
Discharged 57.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
56% over limit
Discharged 0.14600001 mg/L against a permitted limit of 0.0938 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
208% over limit
Discharged 0.40000002 mg/L against a permitted limit of 0.13000001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
208% over limit
Discharged 0.40000002 mg/L against a permitted limit of 0.13000001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
113% over limit
Discharged 192 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
515% over limit
Discharged 61.5 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 58.8 mg/L against a permitted limit of 50 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
28% over limit
Discharged 57.5 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
44% over limit
Discharged 905 MPN/100mL against a permitted limit of 630 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
618% over limit
Discharged 905 MPN/100mL against a permitted limit of 126 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
March 31, 2026
Copper, total recoverable
165% over limit
Discharged 0.0613 mg/L against a permitted limit of 0.0231 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
585% over limit
Discharged 0.89000004 mg/L against a permitted limit of 0.13000001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
387% over limit
Discharged 48.7 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1814% over limit
Discharged 9.57 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Boron, total recoverable
34% over limit
Discharged 4.40000021 mg/L against a permitted limit of 3.28000016 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Boron, total recoverable
169% over limit
Discharged 4.40000021 mg/L against a permitted limit of 1.63500008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
433% over limit
Discharged 0.0613 mg/L against a permitted limit of 0.0115 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
225% over limit
Discharged 48.7 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total recoverable
381% over limit
Discharged 0.0495 mg/L against a permitted limit of 0.0103 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1814% over limit
Discharged 9.57 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
38% over limit
Discharged 0.25900001 mg/L against a permitted limit of 0.18820001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
454% over limit
Discharged 499 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
732% over limit
Discharged 499 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
176% over limit
Discharged 0.25900001 mg/L against a permitted limit of 0.0938 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Lead, total recoverable
871% over limit
Discharged 0.0495 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
585% over limit
Discharged 0.89000004 mg/L against a permitted limit of 0.13000001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Zinc, total recoverable
295% over limit
Discharged 0.74400004 mg/L against a permitted limit of 0.18820001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
638% over limit
Discharged 0.0849 mg/L against a permitted limit of 0.0115 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1920% over limit
Discharged 10.1 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
417% over limit
Discharged 155 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
711% over limit
Discharged 81.1 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Lead, total recoverable
102% over limit
Discharged 0.0208 mg/L against a permitted limit of 0.0103 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
693% over limit
Discharged 0.74400004 mg/L against a permitted limit of 0.0938 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Boron, total recoverable
1386% over limit
Discharged 24.30000115 mg/L against a permitted limit of 1.63500008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
43% over limit
Discharged 71.3 mg/L against a permitted limit of 50 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
893% over limit
Discharged 596 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Boron, total recoverable
641% over limit
Discharged 24.30000115 mg/L against a permitted limit of 3.28000016 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
562% over limit
Discharged 596 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
441% over limit
Discharged 81.1 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
268% over limit
Discharged 0.0849 mg/L against a permitted limit of 0.0231 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
244% over limit
Discharged 155 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total recoverable
308% over limit
Discharged 0.0208 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1920% over limit
Discharged 10.1 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
44% over limit
Discharged 14.4 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
52% over limit
Discharged 0.0352 mg/L against a permitted limit of 0.0231 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
45% over limit
Discharged 0.723 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
98% over limit
Discharged 0.18600001 mg/L against a permitted limit of 0.0938 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
45% over limit
Discharged 0.723 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
72% over limit
Discharged 103 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Boron, total recoverable
104% over limit
Discharged 6.70000032 mg/L against a permitted limit of 3.28000016 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
14% over limit
Discharged 103 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total recoverable
6% over limit
Discharged 0.0109 mg/L against a permitted limit of 0.0103 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total recoverable
114% over limit
Discharged 0.0109 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Boron, total recoverable
310% over limit
Discharged 6.70000032 mg/L against a permitted limit of 1.63500008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
206% over limit
Discharged 0.0352 mg/L against a permitted limit of 0.0115 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Boron, total recoverable
775% over limit
Discharged 14.30000068 mg/L against a permitted limit of 1.63500008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
23% over limit
Discharged 55.4 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
734% over limit
Discharged 83.4 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
3731% over limit
Discharged 0.88500004 mg/L against a permitted limit of 0.0231 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
7596% over limit
Discharged 0.88500004 mg/L against a permitted limit of 0.0115 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
19% over limit
Discharged 59.3 mg/L against a permitted limit of 50 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Boron, total recoverable
336% over limit
Discharged 14.30000068 mg/L against a permitted limit of 3.28000016 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
75% over limit
Discharged 0.16400001 mg/L against a permitted limit of 0.0938 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Lead, total recoverable
34% over limit
Discharged 0.0138 mg/L against a permitted limit of 0.0103 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
73% over limit
Discharged 104 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
16% over limit
Discharged 104 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
456% over limit
Discharged 83.4 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
85% over limit
Discharged 55.4 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Lead, total recoverable
171% over limit
Discharged 0.0138 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Oxygen demand, chem. [high level] [COD]
77% over limit
Discharged 106 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
72% over limit
Discharged 17.2 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Lead, total recoverable
96% over limit
Discharged 0.01 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
198% over limit
Discharged 1.49 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
18% over limit
Discharged 106 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
15% over limit
Discharged 17.2 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
33% over limit
Discharged 60 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
100% over limit
Discharged 60 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
198% over limit
Discharged 1.49 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Lead, total recoverable
96% over limit
Discharged 0.01 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
41% over limit
Discharged 84.4 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, 20 deg. C
97% over limit
Discharged 88.8 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
171% over limit
Discharged 27.1 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
294% over limit
Discharged 355 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
277% over limit
Discharged 0.0434 mg/L against a permitted limit of 0.0115 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
196% over limit
Discharged 88.8 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
81% over limit
Discharged 27.1 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
20% over limit
Discharged 0.22600001 mg/L against a permitted limit of 0.18820001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total recoverable
115% over limit
Discharged 0.0221 mg/L against a permitted limit of 0.0103 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1026% over limit
Discharged 5.63 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Lead, total recoverable
333% over limit
Discharged 0.0221 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1026% over limit
Discharged 5.63 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
492% over limit
Discharged 355 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
141% over limit
Discharged 0.22600001 mg/L against a permitted limit of 0.0938 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
88% over limit
Discharged 0.0434 mg/L against a permitted limit of 0.0231 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Copper, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0115 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 12.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 3.1 mg/L (MO AVG)
DMR, Limited - Overdue
Oxygen demand, chem. [high level] [COD]
0% over limit
Discharged 0 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 50 mg/L (MO AVG)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Sulfate [as S]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Benzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Overdue
Benzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Lead, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0103 mg/L (DAILY MX)
DMR, Limited - Overdue
Oxygen demand, chem. [high level] [COD]
0% over limit
Discharged 0 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Zinc, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.18820001 mg/L (DAILY MX)
DMR, Limited - Overdue
Chloride
0% over limit
Discharged 0 mg/L against a permitted limit of 188 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.13000001 mg/L (MO AVG)
DMR, Limited - Overdue
Chloride
0% over limit
Discharged 0 mg/L against a permitted limit of 378 mg/L (DAILY MX)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.13000001 mg/L (DAILY MX)
DMR, Limited - 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
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
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
Sulfate [as S]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Chlorides + Sulfates
0% over limit
Discharged 0 mg/L against a permitted limit of 1000 mg/L (DAILY MX)
DMR, Limited - Overdue
Boron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 3.28000016 mg/L (DAILY MX)
DMR, Limited - Overdue
Zinc, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0938 mg/L (MO AVG)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0231 mg/L (DAILY MX)
DMR, Limited - Overdue
Lead, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Overdue
Boron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 1.63500008 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorides + Sulfates
0% over limit
Discharged 0 mg/L against a permitted limit of 1000 mg/L (MO AVG)
DMR, Limited - Overdue
January 31, 2025
pH
0% over limit
Discharged 8 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Copper, total recoverable
83% over limit
Discharged 0.0423 mg/L against a permitted limit of 0.0231 mg/L (DAILY MX)
DMR, Limited - Overdue
Copper, total recoverable
83% over limit
Discharged 0.0423 mg/L against a permitted limit of 0.0231 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Sulfate [as S]
0% over limit
Discharged 10 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 14.2 mg/L against a permitted limit of 50 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorides + Sulfates
0% over limit
Discharged 19.1 mg/L against a permitted limit of 1000 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.38 mg/L against a permitted limit of 12.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 50 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 1000 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Benzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Lead, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0051 mg/L (MO AVG)
DMR, Limited - Overdue
Lead, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0103 mg/L (DAILY MX)
DMR, Limited - Overdue
Phosphorus, total [as P]
232% over limit
Discharged 1.66 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
232% over limit
Discharged 1.66 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Zinc, total recoverable
0% over limit
Discharged 0.0581 mg/L against a permitted limit of 0.0938 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
40% over limit
Discharged 62.8 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
40% over limit
Discharged 62.8 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
0% over limit
Discharged 0.0581 mg/L against a permitted limit of 0.18820001 mg/L (DAILY MX)
DMR, Limited - Overdue
Phosphorus, total [as P]
232% over limit
Discharged 1.66 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Overdue
Phosphorus, total [as P]
232% over limit
Discharged 1.66 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chloride
0% over limit
Discharged 9.1 mg/L against a permitted limit of 378 mg/L (DAILY MX)
DMR, Limited - Overdue
Boron, total recoverable
0% over limit
Discharged 3.07000015 mg/L against a permitted limit of 3.28000016 mg/L (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
115% over limit
Discharged 0.28000001 mg/L against a permitted limit of 0.13000001 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
115% over limit
Discharged 0.28000001 mg/L against a permitted limit of 0.13000001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
109% over limit
Discharged 62.8 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
109% over limit
Discharged 62.8 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 14.2 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Overdue
Sulfate [as S]
0% over limit
Discharged 10 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.38 mg/L against a permitted limit of 3.1 mg/L (MO AVG)
DMR, Limited - Overdue
Chloride
0% over limit
Discharged 9.1 mg/L against a permitted limit of 188 mg/L (MO AVG)
DMR, Limited - Overdue
Copper, total recoverable
268% over limit
Discharged 0.0423 mg/L against a permitted limit of 0.0115 mg/L (MO AVG)
DMR, Limited - Overdue
Copper, total recoverable
268% over limit
Discharged 0.0423 mg/L against a permitted limit of 0.0115 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
36% over limit
Discharged 20.4 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
36% over limit
Discharged 20.4 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
104% over limit
Discharged 20.4 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
104% over limit
Discharged 20.4 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Benzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Chlorides + Sulfates
0% over limit
Discharged 19.1 mg/L against a permitted limit of 1000 mg/L (DAILY MX)
DMR, Limited - Overdue
Oxygen demand, chem. [high level] [COD]
410% over limit
Discharged 306 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Overdue
Oxygen demand, chem. [high level] [COD]
410% over limit
Discharged 306 mg/L against a permitted limit of 60 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Boron, total recoverable
88% over limit
Discharged 3.07000015 mg/L against a permitted limit of 1.63500008 mg/L (MO AVG)
DMR, Limited - Overdue
Boron, total recoverable
88% over limit
Discharged 3.07000015 mg/L against a permitted limit of 1.63500008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
115% over limit
Discharged 0.28000001 mg/L against a permitted limit of 0.13000001 mg/L (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
115% over limit
Discharged 0.28000001 mg/L against a permitted limit of 0.13000001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen demand, chem. [high level] [COD]
240% over limit
Discharged 306 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Overdue
Oxygen demand, chem. [high level] [COD]
240% over limit
Discharged 306 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)