General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website S50166 Walter Hansel Winery Privately-Owned Business 5465 Hall Rd Santa Rosa, CA 95401 N/A N/A Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date S271666 Walter Hansel Winery Sonoma 1 Facility Discharger 09/01/2005 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification N/A Stephen Hansel 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 S178897 Industrial 1 1 49I014154 Enrollee under Statewide Industrial Permit 97-03DWQ for Walter Hansel Winery Active INDSTW 2014-0057-DWQ 06/18/1998 null Discharger 09/01/2005 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. S892616 07/15/2025 SW - Late Report Failure to submit the 2024-2025 Annual Report by 07/15/2025 Violation N Report Walter Hansel Winery S178897 2014-0057-DWQ Y Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status S457145 Notice of Violation null 1 49I014154 INDSTW 08/08/2025 Active S250788 13267 Letter/Order UNKNOWN 1 49I014154 INDSTW 08/13/2003 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status