PLEASANT UNITY STP
NPDES ID: PA0092274
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
December 31, 2025
Copper, total [as Cu]
22% over limit
Discharged 0.01143 mg/L against a permitted limit of 0.00936 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Copper, total [as Cu]
66% over limit
Discharged 0.01555 mg/L against a permitted limit of 0.00936 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
50% over limit
Discharged 0.021 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, total [as Cu]
4% over limit
Discharged 0.034958 kg/d against a permitted limit of 0.033596 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
18% over limit
Discharged 0.05902 kg/d against a permitted limit of 0.04994 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
103% over limit
Discharged 0.019025 mg/L against a permitted limit of 0.00936 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
47% over limit
Discharged 0.0206 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
12% over limit
Discharged 0.13500001 mg/L against a permitted limit of 0.12000001 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Copper, total [as Cu]
76% over limit
Discharged 0.0246 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
113% over limit
Discharged 0.01996 mg/L against a permitted limit of 0.00936 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)