INTERSTATE LUMBER CO INC
NPDES ID: WV1027522
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: 39 reporting violations.
Violations
March 31, 2026
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 2.46 mg/L (MO MAX)
DMR, Limited - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 1.42 mg/L (MO AVG)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MO MAX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MO MIN)
DMR, Limited - Overdue
Solids, settleable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0005 mg/L (MO MAX)
DMR, Limited - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MIN)
DMR, Monitor Only - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MIN)
DMR, Monitor Only - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MAX)
DMR, Monitor Only - Overdue
Aluminum, total [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Overdue
Aluminum, total [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Overdue
February 28, 2026
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Aluminum, total [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MO MIN)
DMR, Limited - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 2.46 mg/L (MO MAX)
DMR, Limited - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 1.42 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, settleable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0005 mg/L (MO MAX)
DMR, Limited - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MIN)
DMR, Monitor Only - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Aluminum, total [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MO MAX)
DMR, Limited - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MIN)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO MAX)
DMR, Monitor Only - Overdue
January 31, 2026
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MIN)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MO MAX)
DMR, Limited - Overdue
Aluminum, total [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Overdue
Aluminum, total [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MO MIN)
DMR, Limited - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MIN)
DMR, Monitor Only - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 1.42 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, settleable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0005 mg/L (MO MAX)
DMR, Limited - Overdue
Aluminum, dissolved [as Al]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO MAX)
DMR, Monitor Only - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 2.46 mg/L (MO MAX)
DMR, Limited - Overdue
December 31, 2025
Aluminum, total [as Al]
435% over limit
Discharged 2.3 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
207% over limit
Discharged 2.3 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
November 30, 2025
Aluminum, total [as Al]
95% over limit
Discharged 0.84 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
12% over limit
Discharged 0.84 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
315% over limit
Discharged 10.2 mg/L against a permitted limit of 2.46 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
618% over limit
Discharged 10.2 mg/L against a permitted limit of 1.42 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Iron, total [as Fe]
176% over limit
Discharged 6.8 mg/L against a permitted limit of 2.46 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
379% over limit
Discharged 6.8 mg/L against a permitted limit of 1.42 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
12% over limit
Discharged 0.48 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Iron, total [as Fe]
161% over limit
Discharged 3.7 mg/L against a permitted limit of 1.42 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
50% over limit
Discharged 3.7 mg/L against a permitted limit of 2.46 mg/L (MO MAX)
DMR, Limited - Numeric Violation
June 30, 2025
Aluminum, total [as Al]
273% over limit
Discharged 2.8 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
551% over limit
Discharged 2.8 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Aluminum, total [as Al]
505% over limit
Discharged 2.6 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
247% over limit
Discharged 2.6 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
April 30, 2025
Aluminum, total [as Al]
328% over limit
Discharged 1.84 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
145% over limit
Discharged 1.84 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
March 31, 2025
Aluminum, total [as Al]
172% over limit
Discharged 2.04 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
374% over limit
Discharged 2.04 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Aluminum, total [as Al]
328% over limit
Discharged 3.21 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
647% over limit
Discharged 3.21 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Aluminum, total [as Al]
521% over limit
Discharged 2.67 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
256% over limit
Discharged 2.67 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
December 31, 2024
Aluminum, total [as Al]
17% over limit
Discharged 0.88 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
105% over limit
Discharged 0.88 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)