ERP ENVIRONMENTAL FUND INC
NPDES ID: IL0004197
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: 4 effluent violations.
Violations
June 30, 2026
Manganese, total [as Mn]
214% over limit
Discharged 11 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
74% over limit
Discharged 14.3 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2026
Manganese, total [as Mn]
40% over limit
Discharged 11.5 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
229% over limit
Discharged 11.5 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Sulfate, total [as SO4]
6% over limit
Discharged 1750 mg/L against a permitted limit of 1656 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
600% over limit
Discharged 24.5 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
199% over limit
Discharged 24.5 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Manganese, total [as Mn]
17% over limit
Discharged 9.6 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
177% over limit
Discharged 9.7 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
79% over limit
Discharged 14.7 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
91% over limit
Discharged 6.7 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Manganese, total [as Mn]
59% over limit
Discharged 13 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
271% over limit
Discharged 13 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Manganese, total [as Mn]
171% over limit
Discharged 9.5 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
50% over limit
Discharged 12.3 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.35 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
March 31, 2025
Manganese, total [as Mn]
16% over limit
Discharged 9.5 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.43 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
103% over limit
Discharged 7.1 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
106% over limit
Discharged 7.2 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Manganese, total [as Mn]
127% over limit
Discharged 7.96 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Manganese, total [as Mn]
320% over limit
Discharged 14.7 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
126% over limit
Discharged 18.5 mg/L against a permitted limit of 8.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Manganese, total [as Mn]
17% over limit
Discharged 4.1 mg/L against a permitted limit of 3.5 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (4 hours ago)