LOGAN INTERNATIONAL AIRPORT
NPDES ID: MA0000787
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 2 effluent violations.
Violations
May 31, 2026
pH
0% over limit
Discharged 9.43 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
60% over limit
Discharged 160 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
160% over limit
Discharged 260 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
30% over limit
Discharged 130 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil & Grease
233% over limit
Discharged 50 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Tolytriazole
0% over limit
Discharged 2.50000012 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 1.10000005 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 1.80000009 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 4.2000002 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 2.80000013 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 2.40000011 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
March 31, 2025
Tolytriazole
0% over limit
Discharged 1.00000005 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 1.00000005 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
January 31, 2025
Tolytriazole
0% over limit
Discharged 1.00000005 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 1.00000005 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 3.50000017 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Tolytriazole
0% over limit
Discharged 1.00000005 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)