General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 600699 Lehigh Hanson, Inc. Privately-Owned Business 24001 Stevens Creek Boulevard Cupertino, CA 95014 408-257-7476 null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 876419 Mission Valley Rock Sediment Removal Project Alameda 2 Dredge/Fill Site Owner 09/17/2021 null 867102 Permanente Creek Maintenance Project Santa Clara 2 Dredge/Fill Site Owner 05/29/2020 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 562591 Erika Guerra Person Legally Responsible Official 05/29/2020 01/18/2022 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 445001 401 Certification 2 2 CW445001 401 Cert for Lehigh Hanson, Inc. Active CERFILLEXC null 10/26/2021 null Discharger 09/17/2021 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