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ABOUT ESTA

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ESTA is an association of teachers, counselors, program specialists, librarians, therapists, and many others who work hard every day to support students and staff throughout the East Side Union High School District.

ESTA Executive Officers

Thomas Brittendahl
President

Mark Adams
Vice President

Tara Halcomb
Secretary

Brandon Rosato

Treasurer

ESTA is an affiliate of the California Teachers Association (CTA). CTA exists to protect and promote the well-being of its members; to improve the conditions of teaching and learning; to advance the cause of free, universal, and quality public education; to ensure that human dignity and civil rights of all children and youth are protected; and to secure a more just, equitable, and democratic society.

© 2026 East Side Teachers Association, a CTA/NEA affilitate

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