STENA DRILLING LTD
NPDES ID: GMG29062X
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 795 reporting violations.
Violations
March 31, 2026
Sanitary Waste Inspection Conducted
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (VALUE)
DMR, Monitor Only - Overdue
Sanitary Waste Inspection Conducted
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (VALUE)
DMR, Monitor Only - Overdue
Cooling Water Intake Inspection
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (VALUE)
DMR, Monitor Only - Overdue
Misc. free oil in Western GOM, OCS
0% over limit
Discharged 0 d against a permitted limit of 0 d (MO TOTAL)
DMR, Monitor Only - Overdue
Sanitary waste, residual chlorine
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (DAILY MN)
DMR, Limited - Overdue
Sanitary Waste Inspection Conducted
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (VALUE)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)