General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website S518501 Hearthstone Multi Asset Entity C LP Privately-Owned Business 23975 Park Sorrento Suite 220 Calabasas, CA 91302 N/A N/A Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date S823805 Phase 2 Ventura 4 Facility Discharger 06/13/2013 null S847937 Pole Creek Ventura 4 Facility Discharger 07/07/2016 null S812007 Bridges Phase 1B Residential Ventura 4 Facility Discharger 08/24/2011 null S934832 Phase 2 Ventura 4 Facility Discharger 08/15/2025 null S935152 Pole Creek Ventura 4 Facility Discharger 08/20/2025 null S820028 Nature Park Ventura 4 Facility Discharger 10/29/2012 null S744099 Bridges Ventura 4 Facility Discharger 09/01/2009 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification N/A Lance Mellring Contact Owner Contact null null null N/A Bryce Brunsting Contact Owner Contact null 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 S589349 Construction 4 4 56C409682 Notice Of Intent New Application Active CONSTW 2009-0009-DWQ 09/25/2025 null Discharger 08/20/2025 null S588979 Construction 4 4 56C409681 Notice Of Intent New Application Active CONSTW 2009-0009-DWQ 09/25/2025 null Discharger 08/15/2025 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 S433231 Verbal Communication null 4 56C367028 CONSTW 05/08/2019 Historical S425968 1st Annual Report Notice of Non-Compliance null 4 56C362124 CONSTW 04/03/2017 Historical S417884 Notice to Comply null 4 56C356235 CONSTW 01/20/2015 Active Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status