PCA-FILER CITY MILL
NPDES ID: MI0001171
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: 1 effluent violation.
Violations
April 30, 2026
Zinc, total [as Zn]
440% over limit
Discharged 0.054 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Zinc, total [as Zn]
40% over limit
Discharged 0.014 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Zinc, total [as Zn]
76% over limit
Discharged 0.0176 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Zinc, total [as Zn]
40% over limit
Discharged 0.014 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Zinc, total [as Zn]
452% over limit
Discharged 0.0552 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Zinc, total [as Zn]
11% over limit
Discharged 0.0111 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Zinc, total [as Zn]
23% over limit
Discharged 0.0123 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Zinc, total [as Zn]
62% over limit
Discharged 0.0162 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Zinc, total [as Zn]
228% over limit
Discharged 0.0328 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Mercury, total [as Hg]
0% over limit
Discharged 0.8 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 0.00005 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
119% over limit
Discharged 0.0219 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Mercury, total [as Hg]
0% over limit
Discharged 0.0000017 mg/L against a permitted limit of 0.00001 mg/L (12MO AVG)
DMR, Limited - Overdue
Zinc, total [as Zn]
233% over limit
Discharged 0.0333 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
0% over limit
Discharged 0.00004086 kg/d against a permitted limit of 0.00028602 kg/d (12MO AVG)
DMR, Limited - Overdue
February 28, 2025
Mercury, total [as Hg]
0% over limit
Discharged 0.9 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
182% over limit
Discharged 0.0282 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
0% over limit
Discharged 0.00004086 kg/d against a permitted limit of 0.00028602 kg/d (12MO AVG)
DMR, Limited - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 0.000046 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
January 31, 2025
Mercury, total [as Hg]
0% over limit
Discharged 0.00003 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 0.0000023 mg/L against a permitted limit of 0.00001 mg/L (12MO AVG)
DMR, Limited - Overdue
Zinc, total [as Zn]
85% over limit
Discharged 0.0185 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
0% over limit
Discharged 0.00005448 kg/d against a permitted limit of 0.00028602 kg/d (12MO AVG)
DMR, Limited - Overdue
December 31, 2024
Zinc, total [as Zn]
16% over limit
Discharged 0.0116 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
0% over limit
Discharged 0.0000026 mg/L against a permitted limit of 0.00001 mg/L (12MO AVG)
DMR, Limited - Overdue
Chemi-mechanical pulp
0% over limit
Discharged 598347.9 kg/d against a permitted limit of 0 kg/d (DA GEOAV)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 2.1 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
November 30, 2024
Mercury, total [as Hg]
0% over limit
Discharged 0.00006356 kg/d against a permitted limit of 0.00028602 kg/d (12MO AVG)
DMR, Limited - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 1.5 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
497% over limit
Discharged 0.0597 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
0% over limit
Discharged 0.00008 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 1.7 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
October 31, 2024
Mercury, total [as Hg]
0% over limit
Discharged 0.00015 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 0.000003 mg/L against a permitted limit of 0.00001 mg/L (12MO AVG)
DMR, Limited - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 3 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
16% over limit
Discharged 0.0116 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chemi-mechanical pulp
0% over limit
Discharged 595717.6 kg/d against a permitted limit of 0 kg/d (DA GEOAV)
DMR, Monitor Only - Overdue
September 30, 2024
Mercury, total [as Hg]
0% over limit
Discharged 0.00011 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
19% over limit
Discharged 0.0119 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
0% over limit
Discharged 2 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Chemi-mechanical pulp
0% over limit
Discharged 598529.3 kg/d against a permitted limit of 0 kg/d (DA GEOAV)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 2.5 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
August 31, 2024
Mercury, total [as Hg]
0% over limit
Discharged 0.00017 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Chemi-mechanical pulp
0% over limit
Discharged 562702.8 kg/d against a permitted limit of 0 kg/d (DA GEOAV)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 0.00015 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
6% over limit
Discharged 0.0106 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
0% over limit
Discharged 3.2 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 3.31 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
July 31, 2024
Chemi-mechanical pulp
0% over limit
Discharged 586194.1 kg/d against a permitted limit of 0 kg/d (DA GEOAV)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
603% over limit
Discharged 0.0703 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
0% over limit
Discharged 2.1 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 2.2 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 0.00012 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Mercury, total [as Hg]
0% over limit
Discharged 0.0000031 mg/L against a permitted limit of 0.00001 mg/L (12MO AVG)
DMR, Limited - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)