Internal Audit Activity


Phone: 559-924-1278 ~ Fax: 559-924-3583

Silas Summers

Internal Audit Director

Florandy Lopez

Internal Audit Manager

Benjamin Villareal

Internal Auditor II

Michael Vor

Internal Auditor II

Peter Royalton

Internal Auditor I

Christi-Ann Auld

Internal Auditor I

Johnelle Chavez

Internal Auditor I

Georgina Gilbertson

Internal Auditor I

Our Mission

The Internal Audit Activity (IAA) will be recognized as Santa Rosa Rancheria’s most valued resource for financial, operational, compliance, and control activities.

Our mission is to provide a wide range of quality audit services to our customers. We will accomplish our mission by:

  • Performing independent assessments of systems controls and efficiency, guided by professional standards and using innovative approaches. Supporting our customers' efforts to achieve their objectives.
  • Providing impartial examinations, recommendations, and comments about areas and activities reviewed.
  • Maintaining a dynamic, team oriented environment that encourages personal and professional growth, and challenges and rewards our employees for excelling and reaching their full potential.

Our Purpose

The overall objective of the IAA is to provide the Santa Rosa Rancheria Tachi Yokut Tribe independent, objective assurance and consulting services designed to add value and improve each of their entities’ operations. The IAA meets this objective by utilizing a systematic, disciplined approach to evaluate and improve the effectiveness of risk management, control, and governance processes.