HESS CORPORATION
NPDES ID: GMG290003
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 4 effluent violations.
Violations
February 28, 2026
Produced water, oil and grease
62% over limit
Discharged 47 mg/L against a permitted limit of 29 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Produced water, oil and grease
34% over limit
Discharged 39 mg/L against a permitted limit of 29 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Produced water, oil and grease
21% over limit
Discharged 51 mg/L against a permitted limit of 42 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Produced water, oil and grease
12% over limit
Discharged 47 mg/L against a permitted limit of 42 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oil & grease, free oil
21% over limit
Discharged 51 mg/L against a permitted limit of 42 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Sanitary waste, residual chlorine
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (DAILY MN)
DMR, Limited - Overdue
Whole Effluent Toxicity [WET] - M. beryllina
Limit violation
Discharged 1 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (VALUE)
DMR, Limited - Numeric Violation
October 31, 2025
Sanitary waste, residual chlorine
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (DAILY MN)
DMR, Limited - Overdue
August 31, 2025
Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia)
Limit violation
Discharged 1 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (VALUE)
DMR, Limited - Numeric Violation
Deck drainage, free oil
Limit violation
Discharged 1 d against a permitted limit of 0 d (MO TOTAL)
DMR, Limited - Numeric Violation
Sanitary waste, residual chlorine
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (DAILY MN)
DMR, Limited - Overdue
July 31, 2025
Sanitary waste, residual chlorine
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (DAILY MN)
DMR, Limited - Overdue
June 30, 2025
Discharge drill cuttings, base fluids retained
0% over limit
Discharged 3.96 % against a permitted limit of 6.9 % (WELL AVG)
DMR, Limited - Overdue
December 31, 2024
Deck drainage, free oil
Limit violation
Discharged 1 d against a permitted limit of 0 d (MO TOTAL)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - M. beryllina
Limit violation
Discharged 1 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (VALUE)
DMR, Limited - Numeric Violation
November 30, 2024
Deck drainage, free oil
Limit violation
Discharged 1 d against a permitted limit of 0 d (MO TOTAL)
DMR, Limited - Numeric Violation
Sanitary waste, residual chlorine
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (DAILY MN)
DMR, Limited - Overdue
October 31, 2024
Whole Effluent Toxicity [WET] - M. beryllina
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, residual chlorine
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (DAILY MN)
DMR, Limited - Overdue
NOAEC Lethal Static Renewal 48HR Acute Menidia beryllina
0% over limit
Discharged 0 % against a permitted limit of 0 % (MO MAX)
DMR, Monitor Only - Overdue
Critical Dilution
0% over limit
Discharged 0 % against a permitted limit of 0 % (VALUE)
DMR, Monitor Only - Overdue
August 31, 2024
Deck drainage, free oil
Limit violation
Discharged 2 d against a permitted limit of 0 d (MO TOTAL)
DMR, Limited - Numeric Violation
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, Limited - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 17, 2026 (8 hours ago)