NP STATEN ISLAND INDUSTRIAL LLC
NPDES ID: NY0004961
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 14 reporting violations.
Violations
April 30, 2026
Xylene [mix of m+o+p]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Ethylbenzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Benzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Oil & Grease
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Toluene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
March 31, 2026
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Oil & Grease
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
February 28, 2026
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
January 31, 2026
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Toluene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Benzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Ethylbenzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Xylene [mix of m+o+p]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
December 31, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
November 30, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
October 31, 2025
Ethylbenzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Benzene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Toluene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Xylene [mix of m+o+p]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
August 31, 2025
Flow rate
0% over limit
Discharged 0.63 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 8.7 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 8.7 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0.001 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
July 31, 2025
pH
0% over limit
Discharged 8.2 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 8.2 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Ethylbenzene
0% over limit
Discharged 0.0003 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Xylene [mix of m+o+p]
0% over limit
Discharged 0.00065 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Benzene
0% over limit
Discharged 0.00043 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0.001 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Toluene
0% over limit
Discharged 0.00038 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0.72 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
June 30, 2025
pH
0% over limit
Discharged 9.4 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
May 31, 2025
pH
0% over limit
Discharged 9.5 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
April 30, 2025
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0.001 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Toluene
0% over limit
Discharged 0.0038 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0.63 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.7 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Xylene [mix of m+o+p]
0% over limit
Discharged 0.0065 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.7 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Benzene
0% over limit
Discharged 0.0043 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Ethylbenzene
0% over limit
Discharged 0.003 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
February 28, 2025
pH
0% over limit
Discharged 8.1 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0.63 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 8.1 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0.001 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
October 31, 2024
Xylene [mix of m+o+p]
0% over limit
Discharged 0.0065 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0.54 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0.002 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Benzene
0% over limit
Discharged 0.0043 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 8 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Toluene
0% over limit
Discharged 0.0038 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 8 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Ethylbenzene
0% over limit
Discharged 0.003 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
August 31, 2024
Flow rate
0% over limit
Discharged 0.198 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 8 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 8 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0.002 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
July 31, 2024
Xylene [mix of m+o+p]
0% over limit
Discharged 0.0065 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Ethylbenzene
0% over limit
Discharged 0.003 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.8 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Toluene
0% over limit
Discharged 0.0038 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Methyl tert-butyl ether [MTBE]
0% over limit
Discharged 0.002 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.8 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Benzene
0% over limit
Discharged 0.0043 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0.2904 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)