ASHLAND WATER FILTRATION PLANT
NPDES ID: PA0063061
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: 3 effluent violations.
Violations
May 31, 2026
Manganese, total [as Mn]
36% over limit
Discharged 2.44 mg/L against a permitted limit of 1.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
106% over limit
Discharged 1.85 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Manganese, total [as Mn]
6% over limit
Discharged 0.95 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Manganese, total [as Mn]
28% over limit
Discharged 1.15 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Manganese, total [as Mn]
28% over limit
Discharged 1.15 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Manganese, total [as Mn]
12% over limit
Discharged 2.01 mg/L against a permitted limit of 1.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
123% over limit
Discharged 2.01 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Manganese, total [as Mn]
134% over limit
Discharged 2.11 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
17% over limit
Discharged 2.11 mg/L against a permitted limit of 1.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Manganese, total [as Mn]
28% over limit
Discharged 2.3 mg/L against a permitted limit of 1.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
156% over limit
Discharged 2.3 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Manganese, total [as Mn]
29% over limit
Discharged 1.16 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Manganese, total [as Mn]
311% over limit
Discharged 3.7 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
25% over limit
Discharged 0.0908 kg/d against a permitted limit of 0.07264 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
106% over limit
Discharged 3.7 mg/L against a permitted limit of 1.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Manganese, total [as Mn]
12% over limit
Discharged 2.24 mg/L against a permitted limit of 2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
124% over limit
Discharged 2.24 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
25% over limit
Discharged 0.0908 kg/d against a permitted limit of 0.07264 kg/d (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Manganese, total [as Mn]
88% over limit
Discharged 0.1362 kg/d against a permitted limit of 0.07264 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
76% over limit
Discharged 1.76 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Manganese, total [as Mn]
5% over limit
Discharged 2.1 mg/L against a permitted limit of 2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
110% over limit
Discharged 2.1 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
150% over limit
Discharged 0.1816 kg/d against a permitted limit of 0.07264 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
25% over limit
Discharged 0.1816 kg/d against a permitted limit of 0.14528 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Manganese, total [as Mn]
88% over limit
Discharged 0.1362 kg/d against a permitted limit of 0.07264 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
49% over limit
Discharged 1.49 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Manganese, total [as Mn]
25% over limit
Discharged 0.0908 kg/d against a permitted limit of 0.07264 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total [as Mn]
40% over limit
Discharged 1.4 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)