SIX MILE RUN STP
NPDES ID: PA0088609
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: 7 effluent violations.
Violations
May 31, 2026
Solids, total suspended
160% over limit
Discharged 23.6079998 kg/d against a permitted limit of 9.07999992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
70% over limit
Discharged 51 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
49% over limit
Discharged 67 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
152% over limit
Discharged 35.4119997 kg/d against a permitted limit of 14.07399988 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
40% over limit
Discharged 12.71199989 kg/d against a permitted limit of 9.07999992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
30% over limit
Discharged 39 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
3% over limit
Discharged 14.52799988 kg/d against a permitted limit of 14.07399988 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
10% over limit
Discharged 33 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Coliform, fecal general
16% over limit
Discharged 2313 MPN/100mL against a permitted limit of 2000 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
7% over limit
Discharged 32 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (4 hours ago)