ATTICA WATER TREATMENT PLANT
NPDES ID: OH0141861
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
Iron, suspended
44% over limit
Discharged 1.44000007 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Iron, suspended
64% over limit
Discharged 3.28000016 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, suspended
111% over limit
Discharged 2.1100001 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Iron, suspended
842% over limit
Discharged 9.42300045 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Iron, suspended
398% over limit
Discharged 9.95000047 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Iron, suspended
12% over limit
Discharged 1.12000005 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Iron, suspended
29% over limit
Discharged 1.29000006 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
July 31, 2025
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
June 30, 2025
Iron, suspended
1000% over limit
Discharged 22.00000104 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, suspended
1800% over limit
Discharged 19.0000009 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 34 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.019 mg/L (DAILY MX)
DMR, Limited - Overdue
April 30, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.019 mg/L (DAILY MX)
DMR, Limited - Overdue
March 31, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.019 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Overdue
February 28, 2025
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.019 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Manganese, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Overdue
Iron, suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Overdue
January 31, 2025
Iron, suspended
3455% over limit
Discharged 71.10000338 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, suspended
3520% over limit
Discharged 36.20000172 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
900% over limit
Discharged 300 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
744% over limit
Discharged 380 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Iron, suspended
2095% over limit
Discharged 43.90000209 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, suspended
2110% over limit
Discharged 22.10000105 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
129% over limit
Discharged 68.7 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
247% over limit
Discharged 156 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2024
Iron, suspended
650% over limit
Discharged 15.00000071 mg/L against a permitted limit of 2.00000009 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, suspended
1400% over limit
Discharged 15.00000071 mg/L against a permitted limit of 1.00000005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 32 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Solids, total suspended
33% over limit
Discharged 40 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Methyl bromide [Bromomethane]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Methyl chloride [Chloromethane]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Methyl chloride [Chloromethane]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Methylene chloride
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Methylene chloride
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Methyl bromide [Bromomethane]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
953% over limit
Discharged 0.2 mg/L against a permitted limit of 0.019 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 34 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)