• Welcome to The Business Office

    3030 C.G. Zinn Road, Thorndale, PA 19372
    Phone: (610) 466-2400

    The Business Office supports the achievement of the School District's mission, goals, and objectives by managing the District’s financial affairs. It also provides information and analyses for sound decision-making and management. The Business Office:
    • Provides management oversight and financial accounting district-wide.
    • Ensures financial compliance with federal and state audit regulations.
    • Supports the school board, superintendent, and administrative team by providing sound financial management, guidance, financial planning documents, and accurate accounting records.
    • Coordinates budget planning.
    • Oversees payroll, facilities, food service, tax collections, child accounting, and transportation. 


    Tax Questions:

    General Tax Questions and Tax Certs: Berkheimer, 610-599-3143

    Delinquent Taxes for 2020/21 and 2019/20 Tax Years: Portnoff, 866-211-9466

    Delinquent Taxes for 2018/19 Tax Year or Earlier: Chester County Tax Claim Bureau, 610-344-6360

    Change of Mailing Address: Chester County Assessment Office, 610-344-6105

    All Other Tax Questions: taxquestions@casdschools.org


      Business Office  
    Lori Diefenderfer Director of Business Administration Ext. 82409
    Mary Friedberg Executive Administrative Assistant Ext. 82428
    Dolores D'Amore Interim Assistant Business Administrator Ext. 82449
    Karen Ambrose Purchasing Coordinator/Fiscal Services Specialist Ext. 82435
    Lorie Dunlap Accounts Receivable Accountant Ext. 82402
    Pam Kiley Federal Programs Accountant Ext. 82481
    Tami Kirby Payroll Secretary Ext. 82410
    Catherine Lark Payroll Accountant Ext. 82442
    Chris Roten Accounts Payable Secretary Ext. 82422
    Dan Pellegrin Director of Operations and Facilities Ext. 82452
    Lisa Trevisan Executive Administrative Assistant Ext. 82452
    Alison Sload
    Transportation Manager Ext. 82504
    Tracy Foster-Porter Transportation Specialist Ext. 82418
    Ardis Yocum Transportation Specialist Ext. 82436
    Crystal Wilkinson Transportation Assistant Ext. 82421
      Food Service  
    Erin Robinson Supervisor of Food Service Ext. 82405
    Brenda Wolf Food Service Secretary Ext. 82404
      Tax Collection  
    Customer Care Dept. Berkheimer 610-599-3143
    Customer Service Portnoff Law Associates, Ltd. 866-211-9466
    Customer Service Chester County Tax Claim Bureau 610-344-6360
    Customer Service Chester County Assessment Office 610-344-6105