Twin Hills Charter Middle 1685 Water Trough Rd., Sebastopol, CA 95472-4647 (map) Phone: (707) 823-7446 Website: http:// Administrator: Catherine Bosch - cbosch@twinhillsusd.org County: Sonoma LCAP Documents: Sample LCAP Infographic Learn more about LCAP Infographics Show All Districts, Charters & COEs Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website