PRECOAT METALS INC
NPDES ID: IN0038172
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: 6 effluent violations.
Violations
June 30, 2026
Cyanide, free [as free]
22% over limit
Discharged 0.11 mg/L against a permitted limit of 0.09 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chromium, hexavalent dissolved [as Cr]
49% over limit
Discharged 0.239 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chromium, hexavalent dissolved [as Cr]
44% over limit
Discharged 0.115 mg/L against a permitted limit of 0.08 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
17% over limit
Discharged 17.5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chromium, total recoverable
68% over limit
Discharged 0.419 mg/L against a permitted limit of 0.25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, free [as free]
56% over limit
Discharged 0.249 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Cyanide, free [as free]
14% over limit
Discharged 0.182 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Cyanide, free [as free]
13% over limit
Discharged 0.18 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, free [as free]
0% over limit
Discharged 0.0113046 kg/d against a permitted limit of 0.04994 kg/d (MO AVG)
DMR, Limited - Overdue
Cyanide, free [as free]
0% over limit
Discharged 0.023154 kg/d against a permitted limit of 0.08626 kg/d (DAILY MX)
DMR, Limited - Overdue
Aluminum, total recoverable
463% over limit
Discharged 0.12258 kg/d against a permitted limit of 0.021792 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Flow, total
0% over limit
Discharged 0.0222404 MGD against a permitted limit of 0 MGD (MO TOTAL)
DMR, Monitor Only - Overdue
Aluminum, total recoverable
492% over limit
Discharged 0.32234 kg/d against a permitted limit of 0.05448 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Chromium, hexavalent dissolved [as Cr]
288% over limit
Discharged 0.31 mg/L against a permitted limit of 0.08 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chromium, hexavalent dissolved [as Cr]
47% over limit
Discharged 0.066738 kg/d against a permitted limit of 0.0454 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Toxicity [chronic], Pimephales promelas [Fathead Minnow]
0% over limit
Discharged 0 toxic against a permitted limit of 33 toxic (MAXIMUM)
DMR, Limited - Overdue
Toxicity [chronic], Ceriodaphnia dubia
0% over limit
Discharged 0 toxic against a permitted limit of 33 toxic (MAXIMUM)
DMR, Limited - Overdue
Cyanide, total [as CN]
267% over limit
Discharged 0.2497 kg/d against a permitted limit of 0.0681 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Chromium, total recoverable
113% over limit
Discharged 0.202938 kg/d against a permitted limit of 0.09534 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Toxicity [acute], Pimephales promelas [Fathead Minnow]
0% over limit
Discharged 0 toxic against a permitted limit of 13.1 toxic (MAXIMUM)
DMR, Limited - Overdue
Cyanide, free [as free]
12% over limit
Discharged 0.101 mg/L against a permitted limit of 0.09 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chromium, total recoverable
190% over limit
Discharged 0.68553999 kg/d against a permitted limit of 0.23608 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Chromium, hexavalent dissolved [as Cr]
519% over limit
Discharged 0.99 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
21% over limit
Discharged 0.026332 kg/d against a permitted limit of 0.021792 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Chromium, total recoverable
1116% over limit
Discharged 3.04 mg/L against a permitted limit of 0.25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Toxicity [acute], Ceriodaphnia dubia
0% over limit
Discharged 0 toxic against a permitted limit of 13.1 toxic (MAXIMUM)
DMR, Limited - Overdue
Cyanide, free [as free]
31% over limit
Discharged 0.21 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chromium, hexavalent dissolved [as Cr]
160% over limit
Discharged 0.224276 kg/d against a permitted limit of 0.08626 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Cyanide, free [as free]
44% over limit
Discharged 0.23 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chromium, total recoverable
8% over limit
Discharged 0.27 mg/L against a permitted limit of 0.25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 5.67499995 kg/d against a permitted limit of 5.44799995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
327% over limit
Discharged 42.7 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
1100% over limit
Discharged 180 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
199% over limit
Discharged 24.47059979 kg/d against a permitted limit of 8.17199993 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Iron, total recoverable
0% over limit
Discharged 0.82 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Iron, total recoverable
0% over limit
Discharged 0.82 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide, total [as CN]
0% over limit
Discharged 0.19 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Iron, total recoverable
0% over limit
Discharged 0.108052 kg/d against a permitted limit of 0.68099999 kg/d (DAILY MX)
DMR, Limited - Overdue
Iron, total recoverable
0% over limit
Discharged 0.054026 kg/d against a permitted limit of 0.35412 kg/d (MO AVG)
DMR, Limited - Overdue
August 31, 2025
Aluminum, total recoverable
19% over limit
Discharged 0.025878 kg/d against a permitted limit of 0.021792 kg/d (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Aluminum, total recoverable
9% over limit
Discharged 0.023835 kg/d against a permitted limit of 0.021792 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Cyanide, free [as free]
44% over limit
Discharged 0.13 mg/L against a permitted limit of 0.09 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Cyanide, total [as CN]
0% over limit
Discharged 0.019976 kg/d against a permitted limit of 0.0681 kg/d (MO AVG)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0.0036 mg/L against a permitted limit of 0.18 mg/L (MO AVG)
DMR, Limited - Overdue
Cyanide, free [as free]
0% over limit
Discharged 0.019976 kg/d against a permitted limit of 0.04994 kg/d (MO AVG)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0.000454 kg/d against a permitted limit of 0.09988 kg/d (MO AVG)
DMR, Limited - Overdue
Cyanide, total [as CN]
0% over limit
Discharged 0.019976 kg/d against a permitted limit of 0.16344 kg/d (DAILY MX)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0.0005902 kg/d against a permitted limit of 0.22246 kg/d (DAILY MX)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0.0037 mg/L against a permitted limit of 0.41 mg/L (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.00454 kg/d against a permitted limit of 0.10896 kg/d (DAILY MX)
DMR, Limited - Overdue
May 31, 2025
Aluminum, total recoverable
9% over limit
Discharged 0.023835 kg/d against a permitted limit of 0.021792 kg/d (MO AVG)
DMR, Limited - Overdue
Aluminum, total recoverable
9% over limit
Discharged 0.023835 kg/d against a permitted limit of 0.021792 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
0% over limit
Discharged 0.023608 kg/d against a permitted limit of 0.05448 kg/d (DAILY MX)
DMR, Limited - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0.16 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Zinc, total recoverable
0% over limit
Discharged 0.15 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Cyanide, free [as free]
33% over limit
Discharged 0.12 mg/L against a permitted limit of 0.09 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Cyanide, free [as free]
56% over limit
Discharged 0.25 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease, hexane extr method
0% over limit
Discharged 0.34958 kg/d against a permitted limit of 8.17199993 kg/d (DAILY MX)
DMR, Limited - Overdue
Zinc, total recoverable
0% over limit
Discharged 0.16 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Aluminum, total recoverable
0% over limit
Discharged 0.16 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
April 30, 2025
Chromium, total recoverable
80% over limit
Discharged 0.45 mg/L against a permitted limit of 0.25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, free [as free]
241% over limit
Discharged 0.294192 kg/d against a permitted limit of 0.08626 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, free [as free]
78% over limit
Discharged 0.16 mg/L against a permitted limit of 0.09 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Chromium, hexavalent dissolved [as Cr]
69% over limit
Discharged 0.27 mg/L against a permitted limit of 0.16 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chromium, total recoverable
20% over limit
Discharged 0.3 mg/L against a permitted limit of 0.25 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Oil and grease, hexane extr method
223% over limit
Discharged 48.4 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease, hexane extr method
36% over limit
Discharged 13.57 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (4 hours ago)