WHEELING-NIPPON STEEL
NPDES ID: WV0004502
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: 1 effluent violation.
Violations
April 30, 2026
Solids, total suspended
47% over limit
Discharged 44 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Zinc, total recoverable
27% over limit
Discharged 0.217 mg/L against a permitted limit of 0.171 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
27% over limit
Discharged 38 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Zinc, total recoverable
22% over limit
Discharged 0.208 mg/L against a permitted limit of 0.171 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Zinc, total recoverable
10% over limit
Discharged 0.188 mg/L against a permitted limit of 0.171 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Zinc, total recoverable
19% over limit
Discharged 0.203 mg/L against a permitted limit of 0.171 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Zinc, total recoverable
88% over limit
Discharged 0.3215 mg/L against a permitted limit of 0.171 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
26% over limit
Discharged 0.518 mg/L against a permitted limit of 0.411 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
211% over limit
Discharged 282.76481762 kg/d against a permitted limit of 90.79999924 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
161% over limit
Discharged 101.85489914 kg/d against a permitted limit of 39.04399967 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
63% over limit
Discharged 0.279 mg/L against a permitted limit of 0.171 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Zinc, total recoverable
114% over limit
Discharged 0.879 mg/L against a permitted limit of 0.411 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
279% over limit
Discharged 0.648 mg/L against a permitted limit of 0.171 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Oil and grease, hexane extr method
67% over limit
Discharged 15.92177987 kg/d against a permitted limit of 9.53399992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Oil and grease, hexane extr method
15% over limit
Discharged 10.99133991 kg/d against a permitted limit of 9.53399992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Solids, total suspended
19% over limit
Discharged 108.26991909 kg/d against a permitted limit of 90.79999924 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Oil and grease, hexane extr method
5% over limit
Discharged 41.00073966 kg/d against a permitted limit of 39.04399967 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)