ITHACA TOMPKINS REGIONAL AIRPORT
NPDES ID: NY0213730
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 1 effluent violation.
Violations
May 31, 2026
Solids, total suspended
30% over limit
Discharged 52 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total dissolved
102% over limit
Discharged 1010 mg/L against a permitted limit of 500 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
93% over limit
Discharged 77 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total dissolved
120% over limit
Discharged 1100 mg/L against a permitted limit of 500 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
22% over limit
Discharged 55 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
20% over limit
Discharged 48 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
pH
0% over limit
Discharged 8.74 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, total suspended
73% over limit
Discharged 69 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.73 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.91 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
450% over limit
Discharged 220 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.73 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.82 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.84 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
20% over limit
Discharged 48 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total dissolved
21% over limit
Discharged 604 mg/L against a permitted limit of 500 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total dissolved
188% over limit
Discharged 1440 mg/L against a permitted limit of 500 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total dissolved
236% over limit
Discharged 1680 mg/L against a permitted limit of 500 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
76% over limit
Discharged 79 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.43 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.08 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.6 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
13% over limit
Discharged 45 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
76% over limit
Discharged 79 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
21% over limit
Discharged 48.4 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Glycol, total
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total dissolved
36% over limit
Discharged 682 mg/L against a permitted limit of 500 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.49 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.35 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.4 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)