General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 31242 General Dynamics National Steel & Shipbuilding Co (NASSCO) Privately-Owned Business Po Box 85278 San Diego, CA 92186-5278 null null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 271897 Ways 3&4 Groundways Expansion San Diego 9 Dredge/Fill Site Owner 04/20/2004 null 243883 National Steel & Shipbuilding Co (NASSCO) San Diego 9 Boatyard/Shipyard Owner 04/16/2002 null 220722 Dredging & Dry Dock Expansion San Diego 9 Facility Owner 07/17/1997 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 647929 Alexandar Niebuhr Person Data Submitter 10/31/2024 null null 562952 Sara Giobbi Person Legally Responsible Official 03/29/2017 null null 627527 Damon LaCasella Person Data Submitter 09/13/2021 null null 638917 Andrew Aguilar Person Legally Responsible Official 07/25/2023 null null 627179 Debora Burke Person Legally Responsible Official 08/26/2021 03/24/2025 null 140438 T Chee Person Legally Responsible Official 01/27/2011 03/24/2025 null 140438 T Chee Person Enforcement Contact 11/27/2002 03/24/2025 null 140438 T Chee Person Enforcement Contact 05/15/2002 03/24/2025 null 140438 T Chee Person Enforcement Contact 08/12/2002 03/24/2025 null 638917 Andrew Aguilar Person Employee 06/29/2023 07/25/2023 null 306427 Hugo Bermudez Person Interested Party 03/28/2006 09/01/2021 null 306427 Hugo Bermudez Person Data Submitter 01/27/2011 09/01/2021 null Regulatory Measures(non-enforcement) Reg. Measure ID Regulatory Measure Type Region WDID Title Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date 142906 WDR 9 9 000000837 WDR 97-060 for NATIONAL STEEL & SHIPBUILDING Historical WDR 97-060 10/15/1997 null Discharger 10/15/1997 null 147514 WDR 9 9 000000837 WDR 00-028 for NATIONAL STEEL & SHIPBUILDING Historical WDR 00-028 02/09/2000 null Discharger 02/09/2000 null 142918 WDR 9 9 000000837 WDR 98-083 for NATIONAL STEEL & SHIPBUILDING Historical WDR 98-083 08/12/1998 null Discharger 08/12/1998 null 142405 WDR 9 9 000000565 WDR 92-072 for NATIONAL STEEL & SHIPBUILDING Historical WDR 92-072 12/14/1992 null Discharger 12/14/1992 null 131776 NPDES Permit 9 9 000000066 NPDES R9-2003-0005 National Steel & Shipbuilding Co. Ind Stormwtr San Diego Bay Historical NPDINDLRG R9-2003-0005 02/05/2003 09/01/2009 Discharger 02/05/2003 null 408359 NPDES Permit 9 9 000000066 NPDES R9-2016-0116 for General Dynamics National Steel & Shipbuilding Co (NASSCO) Historical NPDINDLRG R9-2016-0116 02/01/2017 07/08/2025 Discharger 08/18/2016 null 142898 NPDES Permit 9 9 000000066 NPDES 97-03602 for NATIONAL STEEL & SHIPBUILDING Historical NPDINDLRG 97-03602 10/15/1997 null Discharger 10/15/1997 null 142352 NPDES Permit 9 9 000000066 NPDES 85-005 for NATIONAL STEEL & SHIPBUILDING Historical NPDINDLRG 85-005 06/10/1985 null Discharger 06/10/1985 null 369914 NPDES Permit 9 9 000000066 NPDES R9-2009-0099 National Steel & Shipbuilding Co (NASSCO) San Diego Bay Historical NPDINDLRG R9-2009-0099 09/01/2009 01/31/2017 Discharger 02/05/2003 null 459091 Enrollee - NPDES 9 9 000000066 Enrollee - NPDES R9-2023-0012 for General Dynamics National Steel & Shipbuilding Co (NASSCO) Active NPDINDLRG R9-2023-0012 07/09/2025 null Discharger 11/08/2024 null 213817 Enrollee 9 9 000000066 NPDES R9-1997-03602 NASSCO Stormwater Historical NPDNONMUNIPRCS 97-03602 06/10/1985 02/04/2003 Discharger 09/01/2005 null 214294 401 Certification 9 9 000001262 9 000001262 Historical CERFILLEXC null 04/20/2004 null Discharger 09/01/2005 null Violations within the past calendar year Violation ID Occurrence Date Violation Type Violation Description Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked To Enf. 1150652 10/03/2025 Surface Water On October 3, 2025, at approximately 1615 hours, NASSCO Security received a report of 55 gallons of oil spilled on the flight deck of the USNS Sojourner Truth (TAO-6). NASSCO's Fire Department (NFD) responded to the incident and found approximately 50 gallons of hydraulic oil on the flight deck of the TAO-6, which had spilled due to an overfilled 55-gallon drum. The source of the spill was secured, and NFD began containing the spill using rags and absorbent pads. Violation N eSMR National Steel & Shipbuilding Co (NASSCO) 459091 R9-2023-0012 N 1150651 11/21/2025 Surface Water On November 21, 2025, at approximately 1130 hours, an estimated 500 gallons of stormwater from the Pier 12 Storm Water Diversion System (SWDS) discharged into San Diego Bay. The pier coordinator alerted NASSCO Maintenance and Environmental Engineering about a pipe that had disconnected from a pier scupper. Maintenance teams promptly responded, secured the pipe, and stopped the discharge. Environmental Engineering personnel arrived on site to find Maintenance actively working on the pipe and pumping the collected stormwater to the Waste Water Treatment Facility (WWTF). Due to safety concerns regarding the pipe's location on the waterside of the pier wall, Environmental Engineering was unable to collect a sample. However, visual observations revealed no evidence of suspended or floating materials, oil or grease, discoloration, turbidity, odors, trash, debris, or any other pollutants. Violation N eSMR National Steel & Shipbuilding Co (NASSCO) 459091 R9-2023-0012 N 1150650 12/05/2025 CTOX Chronic Toxicity-Sea Urchin or Sand Dollar-Fertilization Event Discharge limit is 50 % effect and reported value was 97 % effect at M-2. Violation N eSMR National Steel & Shipbuilding Co (NASSCO) 459091 R9-2023-0012 N 1148439 08/11/2025 Surface Water On August 11, 2025 at 0913 hrs, NASSCO Security received a report of a sheen in San Diego Bay adjacent to Berth 6 of approximately 800' x 100'. Security notified NASSCO Fire Department (NFD) and NASSCO Environmental Engineering (EE) to respond to the incident. At the time of the incident, two NASSCO departments were operating vessel systems that had the potential to discharge fuel. EE made regulatory notifications to the Office of Emergency Services (#25-3980), National Response Center (#143-9509), and Regional Water Quality Control Board (voicemail). An oil boom was around the vessel that contained the sheen and NASSCO Waterfront Services (NWF) placed a secondary boom around the sheen to prevent migration. NFD, EE, and WFS conducted an investigation to identify a source of the discharge. NFD nor EE identify any source or evidence of a spill onboard the vessel, NWF used a skiff and diver but did not identify a source within the water or under the vessel. NASSCO continued to monitor the incident, the sheen was not recoverable and dissipated over time. Violation N eSMR National Steel & Shipbuilding Co (NASSCO) 459091 R9-2023-0012 N 1143966 05/19/2025 Surface Water On May 19, 2025, at approximately 1357 hrs, a trace amount of hydraulic fluid entered the Bay from a spill during commissioning test for a piece of hydraulic equipment on the USNS Lucy Stone. After NASSCO Test and Trials employees observed the sheen, they notified NASSCO Security, who initiated spill procedures. NASSCO Environmental Engineering, Fire Department and Waterfront Services were notified of the spill and responded. An unknown amount of material created a light sheen of approximately 10 x 15 feet within the vessel¿s containment boom and was determined to be unrecoverable. Violation N eSMR National Steel & Shipbuilding Co (NASSCO) 408359 R9-2016-0116 N Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 370132 Time Schedule Order R9-2009-0117 TSO R9-2009-0117 GD National Steel & Shipbuilding Co (NASSCO) San Diego Bay NPDINDLRG 09/01/2009 Active 428447 Staff Enforcement Letter null SEL for General Dynamics National Steel & Shipbuilding Co (NASSCO) NPDINDLRG 01/28/2019 Historical 234907 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 12/19/2000 Historical 390352 Staff Enforcement Letter R9-2009-0099 SEL re R9-2009-0099 for NASSCO (Sept 2009- March 2013) NPDINDLRG 06/03/2013 Historical 396201 Staff Enforcement Letter R9-2009-0099 SEL re R9-2009-0099 for General Dynamics National Steel & Shipbuilding Co (NASSCO) (May 2014) NPDINDLRG 05/21/2014 Historical 234032 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 03/06/2000 Historical 234033 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 03/06/2000 Historical 234460 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 08/22/2000 Historical 234700 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 10/31/2000 Historical 234748 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 08/22/2000 Historical 397236 Staff Enforcement Letter R9-2009-0099 SEL re R9-2009-0009 for General Dynamics National Steel & Shipbuilding Co (NASSCO) (April 2014 - May 2014) NPDINDLRG 07/16/2014 Historical 252728 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 06/08/2004 Historical 247881 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 08/12/2002 Historical 244174 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 03/11/2003 Historical 234881 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 07/10/2000 Historical 234702 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 10/31/2000 Historical 238113 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 12/04/2001 Historical 234034 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 03/06/2000 Historical 250417 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDINDLRG 02/05/2004 Historical 250756 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 12/15/2003 Historical 401473 Staff Enforcement Letter R9-2009-0099 SEL re R9-2009-0099 for General Dynamics National Steel & Shipbuilding Co (NASSCO) (July 2014 - April 2015) NPDINDLRG 06/11/2015 Historical 234701 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 10/31/2000 Historical 234747 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 08/22/2000 Historical 237342 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 09/22/2003 Historical 245487 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 11/27/2002 Historical 249631 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 01/22/2004 Historical 407398 Staff Enforcement Letter R9-2009-0099 SEL re R9-2009-0099 for General Dynamics National Steel & Shipbuilding Co (NASSCO) (July 2015- May 2016) NPDINDLRG 08/11/2016 Historical 234459 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 08/22/2000 Historical 249768 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDINDLRG 01/27/2004 Historical 398407 Staff Enforcement Letter R9-2009-0099 SEL re R9-2009-0099 for General Dynamics National Steel & Shipbuilding Co (NASSCO) NPDINDLRG 10/08/2014 Historical 234031 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 03/06/2000 Historical 234749 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 08/22/2000 Historical 242467 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 05/15/2002 Historical 242899 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 06/30/2003 Historical 250357 Staff Enforcement Letter UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 10/30/2003 Historical 233165 Notice to Comply UNKNOWN Enforcement - 9 000000066 NPDNONMUNIPRCS 06/24/1999 Historical 386888 Notice of Violation R9-2012-0051 NOV R9-2012-0051 USN BAE and NASSCO for Violation of Directives CAO R9-2012-0024 SLIC 07/10/2012 Historical 253760 Notice of Violation R9-2005-0039 Enforcement - 9 000000066 NPDNONMUNIPRCS 01/20/2005 Historical 423229 Notice of Violation R9-2018-0147 NOV R9-2018-0147 for General Dynamics National Steel & Shipbuilding Co (NASSCO) NPDINDLRG 08/24/2018 Historical 340860 Clean-up and Abatement Order R9-2012-0024 CAO No. R9-2012-0024 for Shipyard Sediment Site San Diego Bay SLIC 03/12/2012 Active 235770 Admin Civil Liability R9-2001-0025 Enforcement - 9 000000066 NPDNONMUNIPRCS 03/14/2001 Historical 391787 Admin Civil Liability R9-2013-0118 ACL R9-2013-0118 for General Dynamics National Steel & Shipbuilding Co (NASSCO) NPDINDLRG 08/27/2013 Historical 428494 Admin Civil Liability R9-2019-0043 ACL R9-2019-0043 for General Dynamics National Steel & Shipbuilding Co (NASSCO) NPDINDLRG 05/03/2019 Historical 403635 13267 Letter R9-2015-0058 Terminated IO R9-2015-0058 for CalTrans et al. re Investigation of Sediments at Mouth of Chollas Creek INDSTW 10/26/2015 Historical 423282 13267 Letter R9-2018-0148 13267 Letter for General Dynamics National Steel & Shipbuilding Co (NASSCO) NPDINDLRG 08/24/2018 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status