MACOUPIN ENERGY LLC
NPDES ID: IL0056022
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
Violations
January 31, 2025
Manganese, total [as Mn]
53% over limit
Discharged 1.53 mg/L against a permitted limit of 1 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)
Source:EPA ECHO facility report