General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 47624 United States Gypsum Company Privately-Owned Business 14370 Gannett Street La Mirada, CA 90638 null null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 237755 Former United States Gypsum Company Facility Los Angeles 4 Manufacturing NEC None null null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 306076 Mecx LLC Person Interested Party 03/23/2006 null 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 298542 NPDES Permit 4 4B191287001 NPDES permit R4-2006-0030 (CI 7481) for United States Gypsum Co Historical NPDNONMUNIPRCS R4-2006-0030 04/08/2006 03/31/2010 Discharger 05/25/2000 null 147718 NPDES Permit 4 4B191287001 NPDES 00-066 for U.S. GYPSUM CO. Historical NPDESWW 00-066 05/25/2000 03/08/2006 Discharger 05/25/2000 null 135517 NPDES Permit 4 4B191287001 NPDES 95-002 for U.S. GYPSUM CO. Historical NPDESWW 95-002 01/23/1995 05/25/2000 Discharger 01/23/1995 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 354378 Admin Civil Liability R4-2008-0075-M Expedited Settlement Ltr sent 10/3/08 for 19 effluent & 4 reporting violations. NPDESWW 10/03/2008 Historical 253702 Notice of Violation NOV NOV sent 5/18/04 for overdue 2003 annual, 1Q04 DMR. NPDESWW 05/18/2004 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status