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

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (5 days ago)