PILKINGTON NORTH AMERICA INC
NPDES ID: OH0002453
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: 13 effluent violations.
Violations
May 31, 2026
Arsenic, total recoverable
129% over limit
Discharged 0.77800004 mg/L against a permitted limit of 0.34000002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
195% over limit
Discharged 4.43 mg/L against a permitted limit of 1.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
246% over limit
Discharged 3.46 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Arsenic, total recoverable
14% over limit
Discharged 0.77800004 mg/L against a permitted limit of 0.68000003 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
608% over limit
Discharged 155 mg/L against a permitted limit of 21.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
866% over limit
Discharged 315 mg/L against a permitted limit of 32.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Phosphorus, total [as P]
130% over limit
Discharged 2.3 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
513% over limit
Discharged 200 mg/L against a permitted limit of 32.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
238% over limit
Discharged 74 mg/L against a permitted limit of 21.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
106% over limit
Discharged 3.09 mg/L against a permitted limit of 1.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Arsenic, total recoverable
82% over limit
Discharged 0.61900003 mg/L against a permitted limit of 0.34000002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Phosphorus, total [as P]
41% over limit
Discharged 2.11 mg/L against a permitted limit of 1.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Arsenic, total recoverable
65% over limit
Discharged 0.56000003 mg/L against a permitted limit of 0.34000002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
0% over limit
Discharged 22 mg/L against a permitted limit of 21.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
115% over limit
Discharged 70 mg/L against a permitted limit of 32.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Phosphorus, total [as P]
188% over limit
Discharged 4.32 mg/L against a permitted limit of 1.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
225% over limit
Discharged 3.25 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.1 SU against a permitted limit of 9.5 SU (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
pH
0% over limit
Discharged 9.9 SU against a permitted limit of 9.5 SU (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
227% over limit
Discharged 4.9 mg/L against a permitted limit of 1.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
287% over limit
Discharged 3.87 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Phosphorus, total [as P]
238% over limit
Discharged 5.07 mg/L against a permitted limit of 1.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
407% over limit
Discharged 5.07 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Phosphorus, total [as P]
30% over limit
Discharged 1.95 mg/L against a permitted limit of 1.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.9 SU against a permitted limit of 9.5 SU (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
73% over limit
Discharged 1.73 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
12% over limit
Discharged 30 mg/L against a permitted limit of 26.7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
74% over limit
Discharged 46.5 mg/L against a permitted limit of 26.7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
156% over limit
Discharged 92 mg/L against a permitted limit of 35.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
334% over limit
Discharged 172 mg/L against a permitted limit of 39.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
35% over limit
Discharged 23 mg/L against a permitted limit of 17.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
1228% over limit
Discharged 433 mg/L against a permitted limit of 32.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
1877% over limit
Discharged 433 mg/L against a permitted limit of 21.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oil and grease [soxhlet extr.] tot.
10% over limit
Discharged 10 mg/L against a permitted limit of 9.1 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.9 SU against a permitted limit of 9.5 SU (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
93% over limit
Discharged 33 mg/L against a permitted limit of 17.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
291% over limit
Discharged 155 mg/L against a permitted limit of 39.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
251% over limit
Discharged 126 mg/L against a permitted limit of 35.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
81% over limit
Discharged 48.3 mg/L against a permitted limit of 26.7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, total suspended
74% over limit
Discharged 69 mg/L against a permitted limit of 39.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
188% over limit
Discharged 94 mg/L against a permitted limit of 32.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
329% over limit
Discharged 94 mg/L against a permitted limit of 21.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)