GRAND ISLE SHIPYARD, LLC - GALLIANO BUNKHOUSE
NPDES ID: LAG541621
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: 5 effluent violations, 20 reporting violations.
Violations
June 30, 2026
Enterococci
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 135 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
38% over limit
Discharged 62 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Enterococci
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 35 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
107% over limit
Discharged 62 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
37% over limit
Discharged 41 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Coliform, fecal general
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Overdue
First flagged
April 14, 2026 (5 months ago)
Last confirmed
October 1, 2026 (6 days ago)