HI-SEAS OF DULAC, INC. - SHRIMP DOCK
NPDES ID: LA0091413
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.
Violations
January 31, 2026
Carbon, tot organic [TOC]
534% over limit
Discharged 317 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Coliform, fecal general
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 43 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Enterococci
612% over limit
Discharged 960.6 MPN/100mL against a permitted limit of 135 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Enterococci
2645% over limit
Discharged 960.6 MPN/100mL against a permitted limit of 35 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 14 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Carbon, tot organic [TOC]
554% over limit
Discharged 327 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Carbon, tot organic [TOC]
192% over limit
Discharged 146 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Carbon, tot organic [TOC]
442% over limit
Discharged 271 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Carbon, tot organic [TOC]
368% over limit
Discharged 234 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Coliform, fecal general
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 14 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Enterococci
117% over limit
Discharged 76.1 MPN/100mL against a permitted limit of 35 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 43 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Carbon, tot organic [TOC]
1180% over limit
Discharged 640 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Carbon, tot organic [TOC]
706% over limit
Discharged 403 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
293% over limit
Discharged 168.9 MPN/100mL against a permitted limit of 43 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
1106% over limit
Discharged 168.9 MPN/100mL against a permitted limit of 14 MPN/100mL (MO AVG)
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
Enterococci
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 135 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2024
Carbon, tot organic [TOC]
596% over limit
Discharged 348 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2024
Carbon, tot organic [TOC]
104% over limit
Discharged 102 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Carbon, tot organic [TOC]
2710% over limit
Discharged 1405 mg/L against a permitted limit of 50 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)