General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 541973 Signature Homes, Inc. Privately-Owned Business 4670 Willow Road 200 Pleasanton, CA 94588 null null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 796994 Madrone Villages Santa Clara 2 Dredge/Fill Site Owner 07/18/2013 null 840862 Gee Property Residential Project Sonoma 1 Dredge/Fill Site Owner and Operator 10/17/2017 null 769465 Delta Shores Sacramento 5S Development Site, NEC Operator 08/23/2023 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 569099 Steve Miller Person Legally Responsible Official 10/17/2017 null null 541974 Jim McKeehan Person Legally Responsible Official 07/18/2013 null null 638263 Larry Gray Person Legally Responsible Official 10/14/2022 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 416711 401 Certification 1 1B171783WNSO 401 Cert for Gee Property Bristol Project Signature Homes Historical CERFILLEXC null 10/19/2018 06/19/2023 Discharger 10/17/2017 null 454040 Enrollee - NPDES 5S 5A34NP00100 Enrollee - NPDES for Signature Homes, Inc. Historical NPDNONMUNIPRCS R5-2022-0006-02 10/19/2023 11/07/2024 Discharger 08/23/2023 null 392275 401 Certification 2 null WQC 07/10/2013 for Signature Homes Active CERFILLEXC null 07/10/2013 null Discharger 07/18/2013 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. 1142857 08/30/2024 CAT2 Arsenic, Total Recoverable Monthly Average limit is 10 ug/L and reported value was 21 ug/L. Violation null Report Delta Shores 454040 R5-2022-0006-02 Y 1142853 08/26/2024 CAT2 Arsenic, Total Recoverable Daily Maximum limit is 20 ug/L and reported value was 23 ug/L. Violation N Report Delta Shores 454040 R5-2022-0006-02 Y Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 461312 Expedited Payment Letter R5-2025-0523 EPL R5-2025-0523 for Signature Homes, Inc. NPDNONMUNIPRCS 05/27/2025 Active 460925 Notice of Violation null NOV 05/01/2025 for Signature Homes, Inc. NPDNONMUNIPRCS 05/01/2025 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status