General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 19798 Hanson Aggregates Privately-Owned Business Po Box 580 Pleasanton, CA 94566 925-426-4051 null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 646825 Hanson Aggregates SF Pier 92 Sand Yard San Francisco 2 Sand and Gravel Mining None null null 234582 Kaiser Sand & Gravel Windsor#1 Sonoma 1 Sand and Gravel Mining Owner 05/26/1983 null 231217 Hanson Aggregates, MARTINEZ Contra Costa 2 Facility Owner 08/24/1995 null 203213 4501 Tidewater Ave, Oakland Alameda 2 Sand and Gravel Mining Owner 02/17/1998 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 142699 WDR 2 2 019216001 WDR 93-008 for HANSON AGGREGATES Historical NPDMINING 93-008 01/20/1993 null Discharger 01/20/1993 null 142504 NPDES Permit 2 2 019216001 NPDES 98-118 for HANSON AGGREGATES Historical NPDMINING R2-1998-0118 12/16/1998 09/01/2006 Discharger 12/16/1998 null 142421 WDR 2 2 071112001 NPDES 96-055 for HANSON AGGREGATES Historical WDR 96-055 04/17/1996 null Discharger 04/17/1996 null 142266 NPDES Permit 2 2 386028001 NPDES 98-062 for HANSON AGGREGATES Historical NPDMINING R2-1998-0062 07/15/1998 09/01/2006 Discharger 07/15/1998 null 137032 WDR 1 1B83059OSON WDR 83-059 for KAISER SAND & GRAVEL CO. Historical WDRMINING 83-059 05/26/1983 09/10/2009 Discharger 05/26/1983 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 377586 Admin Civil Liability R2-2011-0097 ACL for 4501 Tidewater NPDESWW 03/09/2012 Historical 252966 Admin Civil Liability R2-2004-0051 Enforcement - 2 386028001 NPDMINING 09/15/2004 Historical 242357 Admin Civil Liability R2-2002-0034 ACL R2-2002-0034 for Hanson Aggregates NPDMINING 05/22/2002 Historical 238368 Oral Communication UNKNOWN Enforcement - 2 386028001 NPDMINING 10/30/2001 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status