General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 637122 Sanjeet Sen null 408-996-4249 sanjeet.sen@lehighhanson.com(+) Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 273205 Lehigh Southwest and Hanson Limestone Quarry Cement Plant (Permanente) Santa Clara 2 Sand and Gravel Mining Is A Data Submitter For 04/25/2023 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 23863 Lehigh Southwest Cement Company, Permanente Facility Organization Employee 01/31/2023 null Privately-Owned Business 23863 Lehigh Southwest Cement Company, Permanente Facility Organization Data Submitter 04/25/2023 null Privately-Owned Business 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 432980 NPDES Permit 2 2 438668001 NPDES R2-2019-0024 for Lehigh Southwest Cement Company, Permanente Facility Active NPDINDLRG R2-2019-0024 09/01/2019 null Discharger Contact 01/31/2023 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 Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status 432980 Lehigh Southwest Cement Company, Permanente Facility NPDES Permit NPDINDLRG 09/01/2019 Active 432980 Lehigh Southwest Cement Company, Permanente Facility NPDES Permit NPDINDLRG 09/01/2019 Active 414776 Lehigh Southwest Cement Company, Permanente Facility NPDES Permit NPDINDLRG 10/01/2017 Active 414776 Lehigh Southwest Cement Company, Permanente Facility NPDES Permit NPDINDLRG 10/01/2017 Active 395340 Lehigh Southwest Cement Company, Permanente Facility NPDES Permit NPDINDLRG 05/01/2014 Historical 395340 Lehigh Southwest Cement Company, Permanente Facility NPDES Permit NPDINDLRG 05/01/2014 Historical 384455 Lehigh Southwest Cement Company, Permanente Facility WDR LNDISPOTH 06/13/2018 Active 384455 Lehigh Southwest Cement Company, Permanente Facility WDR LNDISPOTH 06/13/2018 Active 380558 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/22/2011 Historical 380558 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/22/2011 Historical 380556 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380556 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380550 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380550 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380549 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 10/28/2011 Historical 380549 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 10/28/2011 Historical 380548 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380548 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380546 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/22/2011 Historical 380546 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/22/2011 Historical 380545 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380545 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380543 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 380543 Lehigh Southwest Cement Company, Permanente Facility Enrollee NPDNONMUNIPRCS 11/21/2011 Historical 146249 Lehigh Southwest Cement Company, Permanente Facility WDR WDR 08/20/1974 Historical 146249 Lehigh Southwest Cement Company, Permanente Facility WDR WDR 08/20/1974 Historical 143297 Lehigh Southwest Cement Company, Permanente Facility Reclamation Requirements REC 03/16/1994 Active 143297 Lehigh Southwest Cement Company, Permanente Facility Reclamation Requirements REC 03/16/1994 Active 143130 Lehigh Southwest Cement Company, Permanente Facility WDR WDR 05/21/1997 Historical 143130 Lehigh Southwest Cement Company, Permanente Facility WDR WDR 05/21/1997 Historical