ROCKVILLE MINING
NPDES ID: WV1029509
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: 2 effluent violations.
Violations
April 30, 2026
Aluminum, total [as Al]
91% over limit
Discharged 0.82 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
9% over limit
Discharged 0.82 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
March 31, 2026
Aluminum, total [as Al]
20% over limit
Discharged 0.9 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
109% over limit
Discharged 0.9 mg/L against a permitted limit of 0.43 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Aluminum, total [as Al]
460% over limit
Discharged 4.2 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Aluminum, total [as Al]
73% over limit
Discharged 1.3 mg/L against a permitted limit of 0.75 mg/L (MO MAX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)