• Welcome to The Business Office

    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: Contact Berkheimer at 610-599-3143

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

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


      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 Ext. 82402
    Pam Kiley Accounting/Grants/Federal Programs Ext. 82481
    Tami Kirby Payroll Secretary Ext. 82410
    Catherine Lark Payroll Accountant Ext. 82442
    Eufy Lopez Bookkeeper Ext. 82419
    Open Position Accounting Secretary-Accounts Payable Ext. 82422
    Dan Pellegrin Director of Operations and Facilities Ext. 82452
    Lisa Trevisan Executive Administrative Assistant Ext. 82452
    Christopher Brown Director of Routing Management Ext. 82504
    Tracy Foster-Porter Transportation Specialist Ext. 82418
      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