WINONA POWDER COATING, INC.
NPDES ID: IN0064840
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: 5 effluent violations.
Violations
May 31, 2026
Nickel, total recoverable
80% over limit
Discharged 0.27 mg/L against a permitted limit of 0.15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nickel, total recoverable
10% over limit
Discharged 0.33 mg/L against a permitted limit of 0.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Nickel, total recoverable
31% over limit
Discharged 0.1958 mg/L against a permitted limit of 0.15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
54% over limit
Discharged 1690 mg/L against a permitted limit of 1100 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chloride [as Cl]
48% over limit
Discharged 831 mg/L against a permitted limit of 560 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Nickel, total recoverable
39% over limit
Discharged 0.2089 mg/L against a permitted limit of 0.15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nickel, total recoverable
5% over limit
Discharged 0.314 mg/L against a permitted limit of 0.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Nickel, total recoverable
6% over limit
Discharged 0.319 mg/L against a permitted limit of 0.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nickel, total recoverable
30% over limit
Discharged 0.1952 mg/L against a permitted limit of 0.15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Chloride [as Cl]
1% over limit
Discharged 567 mg/L against a permitted limit of 560 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Chloride [as Cl]
15% over limit
Discharged 645 mg/L against a permitted limit of 560 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Nickel, total recoverable
8% over limit
Discharged 0.1613 mg/L against a permitted limit of 0.15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Chloride [as Cl]
20% over limit
Discharged 672 mg/L against a permitted limit of 560 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Nickel, total recoverable
36% over limit
Discharged 0.407 mg/L against a permitted limit of 0.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
33% over limit
Discharged 80 mg/L against a permitted limit of 60 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nickel, total recoverable
129% over limit
Discharged 0.688 mg/L against a permitted limit of 0.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nickel, total recoverable
36% over limit
Discharged 0.2035 mg/L against a permitted limit of 0.15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
119% over limit
Discharged 1.18 mg/L against a permitted limit of 0.54 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Nickel, total recoverable
5% over limit
Discharged 0.315 mg/L against a permitted limit of 0.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Oil and grease, hexane extr method
13% over limit
Discharged 17 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)