EmissionsLookup
Non-Compliance TRI Reporter Clean Air Act Clean Water Act RCRA

NORTH AMERICAN SHIPBUILDING LLC - LAROSE SHIPYARD

Quick Summary

  • Released 7,873 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
  • Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
  • Assessed $0 in total penalties since records began.
  • Reports releases of chemicals classified as known or probable carcinogens.
Address
800 INDUSTRIAL PARK ROAD
LAROSE, LA 70373
View on map ↗
County
LAFOURCHE County
Industry
Manufacturing
NAICS (North American Industry Classification)
336611
Inspections
3 · last Aug 30, 2024
Total Penalties
$0 · last Sep 24, 2014
Registry ID
110000846648

How This Compares

#198 of 419 TRI reporters in LA
#4,430 of 16,877 TRI reporters in Manufacturing

Ranked by most recent year's total TRI releases.

Compliance Status (Last 12 Quarters)

Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.

0
Air (CAA)
Qtrs Non-Compliant
4
Water (CWA)
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant

TRI Toxic Chemical Releases

Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.

Emissions Trend (2015–2024) -46% overall
Year Total Releases (lbs) vs Prior Year
2015 20,213
2016 6,839 -66%
2017 7,873 +15%
2018 8,503 +8%
2019 3 -100%
2020 7,587 +284076%
2021 24 -100%
2022 29,745 +122106%
2023 15,272 -49%
2024 10,972 -28%

2024

Chemical Total (lbs) Air Water Land Off-Site
Xylene (mixed isomers) 10,952 10,952
Manganese 16 16 1,010
Chromium 2 2 4,028
Copper 1 1 116
Nickel 0 0 504 ♦ Carcinogen

2023

Chemical Total (lbs) Air Water Land Off-Site
Xylene (mixed isomers) 15,190 15,190
Manganese 58 58 1,850
Copper 18 18 212
Chromium 4 4 7,382
Nickel 1 1 923 ♦ Carcinogen
Zinc (fume or dust) 0 0 1,844

2022

Chemical Total (lbs) Air Water Land Off-Site
Xylene (mixed isomers) 17,439 17,439 822
n-Butyl alcohol 11,995 11,995 756
Zinc compounds 267 267 26,949
Manganese 33 33 1,157
Chromium 6 6 4,607
Lead 2 2 2 ♦ Carcinogen
Nickel 2 2 576 ♦ Carcinogen
Copper 1 1 132

2021

Chemical Total (lbs) Air Water Land Off-Site
Manganese 22 22 253
Chromium 2 2 994

2020

Chemical Total (lbs) Air Water Land Off-Site
Xylene (mixed isomers) 7,374 7,374
Zinc compounds 149 149 21,946
Manganese 50 50 2,161
Chromium 7 7 8,600
Copper 3 3 247
Lead 2 2 3 ♦ Carcinogen
Nickel 2 2 1,076 ♦ Carcinogen
Zinc (fume or dust) 0 0 2,148

2019

Chemical Total (lbs) Air Water Land Off-Site
Chromium 3 3 7,267

2018

Chemical Total (lbs) Air Water Land Off-Site
Xylene (mixed isomers) 8,469 8,469 7,013
Manganese 29 29 433
Copper 3 3
Chromium 3 3 1,696

2017

Chemical Total (lbs) Air Water Land Off-Site
Nickel 609 ♦ Carcinogen
Xylene (mixed isomers) 7,508 7,508 6,248
Zinc compounds 269 269 145,804
Manganese 79 79 1,226
Chromium 8 8 4,867
Copper 6 6 1,259
Lead 3 3 3 ♦ Carcinogen

2016

Chemical Total (lbs) Air Water Land Off-Site
Nickel 255 ♦ Carcinogen
Lead 192 ♦ Carcinogen
Xylene (mixed isomers) 6,744 6,744 4,461
Manganese 68 68 1,022
Copper 26 26 1,974
Chromium 1 1 1,530
Zinc (fume or dust) 0 0

2015

Chemical Total (lbs) Air Water Land Off-Site
Lead 264 ♦ Carcinogen
Zinc (fume or dust)
Nickel 2,624 ♦ Carcinogen
Xylene (mixed isomers) 19,678 19,678 535
Zinc compounds 384 384 717
Manganese 109 109 5,951
Copper 41 41 796
Chromium 1 1 20,285

Waste Management & Recycling

How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.

Chemical Released Recycled Energy Recovery Treated
Manganese 1,010
Copper 116
Nickel 504
Chromium 4,028

Off-Site Transfer Destinations

Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.

Destination Chemical Disposal Recycling Energy Rec. Treatment
SOUTHERN RECYCLING
HOUMA, LA
Manganese 1,010
SOUTHERN RECYCLING
HOUMA, LA
Nickel 504
SOUTHERN RECYCLING
HOUMA, LA
Chromium 4,028
SOUTHERN RECYCLING
HOUMA, LA
Copper 116

Compliance Violations

Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.

Program Type Violation Date Return to Compliance Status
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Apr 2, 2012 Apr 18, 2012 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Mar 17, 2010 Apr 22, 2012 Resolved
rcra Standards for Used Oil: Generators Mar 17, 2010 Apr 22, 2012 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Mar 17, 2010 Apr 22, 2012 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Mar 17, 2010 Apr 2, 2012 Resolved
rcra Standards Applicable to Generators of HW: General Jun 13, 2007 Aug 1, 2007 Resolved
rcra Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators Jun 13, 2007 Oct 29, 2008 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jun 13, 2007 Jun 8, 2009 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Jun 13, 2007 Jun 8, 2009 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Jun 13, 2007 Jun 20, 2007 Resolved
rcra Standards Applicable to Generators of HW: General Dec 11, 1996 Feb 11, 1998 Resolved
rcra Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators Dec 1, 1995 Sep 26, 1996 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Dec 1, 1995 Sep 26, 1996 Resolved
rcra Standards Applicable to Generators of HW: General Dec 1, 1995 Feb 20, 1998 Resolved

Discharge Limit Exceedances

Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.

Pollutant Violation Reported Limit Exceedance Period Status
Solids, total suspended DMR, Limited - Numeric Violation 40.50 mg/L 30.00 +35% Aug 2024 Open
Solids, total suspended DMR, Limited - Numeric Violation 47.00 mg/L 45.00 +4% Aug 2024 Open
Solids, total suspended DMR, Limited - Numeric Violation 51.00 mg/L 45.00 +13% Jul 2024 Open
Solids, total suspended DMR, Limited - Numeric Violation 82.00 mg/L 45.00 +82% Feb 2024 Open
Solids, total suspended DMR, Limited - Numeric Violation 73.00 mg/L 30.00 +143% Feb 2024 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 68.00 mg/L 45.00 +51% Jan 2024 Open
Solids, total suspended DMR, Limited - Numeric Violation 55.00 mg/L 30.00 +83% Jan 2024 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 61.00 mg/L 45.00 +36% Nov 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 42.00 mg/L 30.00 +40% Nov 2023 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 52.00 mg/L 45.00 +16% Aug 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 47.00 mg/L 30.00 +57% Jul 2023 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 96.00 mg/L 45.00 +113% Jul 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 66.00 mg/L 45.00 +47% Mar 2023 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 32.00 mg/L 30.00 +7% Mar 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 88.00 mg/L 45.00 +96% Feb 2023 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 44.00 mg/L 30.00 +47% Feb 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 49.00 mg/L 45.00 +9% Jan 2023 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 33.00 mg/L 30.00 +10% Jan 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 21.50 mg/L 20.00 +8% Jan 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 46.00 mg/L 45.00 +2% Aug 2017 Open

Enforcement Actions

Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.

WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-LAR000009183-097 · Sep 24, 2014
$22,500
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-LAR000009183-087 · Jul 24, 2012
FINAL SETTLEMENT
RCRA (Hazardous Waste) · Case RCRA-LAR000009183-167 · Oct 29, 2008
FACILITY APPEALED
RCRA (Hazardous Waste) · Case RCRA-LAR000009183-476 · Sep 3, 1997
$15,870
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste) · Case RCRA-LAR000009183-002 · Aug 22, 1997
$21,375
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste) · Case RCRA-LAR000009183-001 · Aug 22, 1997
$21,375
Administrative - Formal
· Case 06-1997-0637 · Aug 22, 1997
$21,375
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste) · Case RCRA-LAR000009183-424 · Apr 6, 1996

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