General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 31238 National Semiconductor Privately-Owned Business 2900 Semiconductor Drive 19-105 Santa Clara, CA 95052-8090 408-721-7170(+) elma.fung@nsc.com Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 252519 2900 Semiconductor, R.O. Plant Santa Clara 2 Facility Owner 08/20/1986 null 202272 Santa Clara Treatment System Santa Clara 2 Groundwater Cleanup Site Owner 10/19/1999 null 202271 2900 Semiconductor Drive, Santa Clara 2 Groundwater Cleanup Site Owner 10/19/1999 null 202270 2900 Semiconductor, T9 Alameda 2 Groundwater Cleanup Site Owner 05/15/1985 null 202269 National Semiconductor Lakeside Treatment System Santa Clara 2 Groundwater Cleanup Site None null null 202268 National Semiconductor, 2900 Semiconductor (SCR & WDR) Santa Clara 2 Facility Owner 08/20/1986 null 201466 1165 E. Arques, AMD Santa Clara 2 Groundwater Cleanup Site Owner 02/21/1990 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 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 372886 Enrollee 2 2 438099004 Enrollee-CAG 912003 1249 Lakeside NSC 2 438099004 Historical NPDNONMUNIPRCS R2-2009-0059 10/19/1999 01/03/2012 Discharger 09/01/2005 null 372525 Enrollee 2 2 438099006 Enrollee-NPDES CAG912003- 2900 Semiconductor NSC 2 438099006 Historical NPDNONMUNIPRCS R2-2009-0059 11/17/2009 01/03/2012 Discharger 09/01/2005 null 183004 Enrollee 2 2 438113002 Enrollee-Gen Permit CAG912003-National Semiconductor, 1165 E. Arques Historical NPDNONMUNIPRCS R2-2004-0055 02/21/1990 12/27/2005 Discharger 09/01/2005 null 182997 Enrollee 2 2 438099006 Enrollee-Gen Permit CAG912003-National Semiconductor, Tower C (2 438099006) Historical NPDNONMUNIPRCS R2-2004-0055 null 11/16/2009 Discharger 09/01/2005 null 182996 Enrollee 2 2 438099005 Enrollee-Gen Permit CAG912003-National Semiconductor, Tower 1 (2 438099005) Historical NPDNONMUNIPRCS R2-2004-0055 10/19/1999 06/24/2005 Discharger 09/01/2005 null 182995 Enrollee 2 2 438099004 Enrollee-Gen Permit CAG912003-Nationl Semiconductor, 1249 Lakeside (2 438099004) Historical NPDNONMUNIPRCS R2-2004-0055 01/18/1995 12/02/2009 Discharger 09/01/2005 null 182993 Enrollee 2 2 438099003 Enrollee-Gen Permit CAG912003-National Semiconductor, T9 Historical NPDNONMUNIPRCS R2-2004-0055 09/30/1994 06/24/2005 Discharger 09/01/2005 null 145467 NPDES Permit 2 2 438099003 NPDES-Order 85-057 (CA0028835) for NATIONAL SEMICONDUCTOR Historical NPDNONMUNIPRCS 85-057 05/15/1985 03/18/1987 Discharger 05/15/1985 null 143371 NPDES Permit 2 2 438099003 NPDES 94-12106 Rescinding Permit CA0028835 for NATIONAL SEMICONDUCTOR Historical NPDNONMUNIPRCS 94-12106 09/30/1994 09/30/1994 Discharger 09/21/1994 null 142792 NPDES Permit 2 2 438099001 NPDES-Order 94-005-National Semiconductor RO Plant Historical NPDESWW 94-005 01/19/1994 01/21/2003 Discharger 01/19/1994 null 141810 NPDES Permit 2 2 438113002 NPDES 95-00709 for NATIONAL SEMICONDUCTOR Historical NPDNONMUNIPRCS 95-00709 01/18/1995 null Discharger 01/18/1995 null 141807 NPDES Permit 2 2 438099004 NPDES 95-00706 Rescinding Permit CA0029629 for NATIONAL SEMICONDUCTOR Historical NPDNONMUNIPRCS 95-00706 01/18/1995 01/18/1995 Discharger 01/18/1995 null 141666 NPDES Permit 2 2 438113002 NPDES 90-018 for NATIONAL SEMICONDUCTOR Historical NPDNONMUNIPRCS 90-018 02/21/1990 null Discharger 02/21/1990 null 141664 NPDES Permit 2 2 438099004 NPDES-Order 90-006 (CA0029629) for NATIONAL SEMICONDUCTOR, Lakeside Dr (E-005) Historical NPDNONMUNIPRCS 90-006 01/17/1990 01/18/1995 Discharger 01/17/1990 null 141006 NPDES Permit 2 2 438099003 NPDES-Order 87-015 (CA0028835) for NATIONAL SEMICONDUCTOR Historical NPDNONMUNIPRCS 87-015 03/18/1987 09/30/1994 Discharger 03/18/1987 null 140949 WDR 2 2 438099002 WDR 86-063 for NATIONAL SEMICONDUCTOR Historical WDRNONMUNIPRCS 86-063 08/20/1986 02/17/1988 Discharger 08/20/1986 null 140945 NPDES Permit 2 2 438099001 NPDES 86-058 for NATIONAL SEMICONDUCTOR Historical NPDESWW 86-058 08/20/1986 null Discharger 08/20/1986 null 131613 NPDES Permit 2 2 438099001 NPDES-Order 03-007-Ntnl Semicndctr RO Plant-RSC of 94-005 Historical NPDESWW R2-2003-0007 01/22/2003 01/22/2003 Discharger 01/22/2003 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. Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 405261 Expedited Payment Letter R2-2016-1003 EPL R2-2016-1003 for National Semiconductor NPDNONMUNIPRCS 03/21/2016 Active 223155 Clean-up and Abatement Order 94-032 Enforcement - 2 438099N02 ENFCAO 02/16/1994 Active 222954 Clean-up and Abatement Order 95-013 Enforcement - 2 438115N01 UNREGS 01/18/1995 Active 221807 Clean-up and Abatement Order R2-1998-011001 Enforcement - 2 438099N02 ENFCAO 10/21/1998 Active 220175 Admin Civil Liability 87-099 Enforcement - 2 438099N02 UNREGS 09/17/1987 Historical 220168 Clean-up and Abatement Order 88-022 Enforcement - 2 438099N02 ENFCAO 02/17/1988 Historical 220076 Clean-up and Abatement Order 89-062 Enforcement - 2 438099N02 ENFCAO 04/19/1989 Historical 219934 Clean-up and Abatement Order 87-092 Enforcement - 2 438115N01 UNREGS 07/21/1987 Historical 219627 Clean-up and Abatement Order 91-137 Enforcement - 2 438099N02 ENFCAO 09/21/1991 Active 219625 Clean-up and Abatement Order 91-13901 Enforcement - 2 438099N02 ENFCAO 09/18/1991 Active 219417 Clean-up and Abatement Order 86-093 Enforcement - 2 438115N01 UNREGS 12/17/1986 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status