District Management

Jeff Armstrong_option2

General Manager - Jeffrey D. Armstrong

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Mr. Armstrong was appointed the District’s General Manager October 8, 2015, Chief Financial Officer in October 2008 and was appointed the District’s Treasurer in April 2010. Previously, he served as the District’s Controller. He has been with the District since 1988 and was the Accounting Manager for ten years. Prior to working for the District, Mr. Armstrong held various accounting positions in private industry including a Fortune 100 company. Mr. Armstrong earned his undergraduate degree in accounting from California State University, Long Beach and a Masters Degree in Business Administration from the University of Redlands.

Eva Plajzer

Assistant General Manager - Engineering and Operations - Eva Plajzer

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Ms. Eva Plajzer was appointed Assistant General Manager for Engineering and Operations. Ms. Plajzer oversees the Engineering and Operations divisions and is responsible for the District’s engineering, operations, wastewater and maintenance functions. Ms. Plajzer joined the District in May 2016 with over 20 years of experience in the utility and engineering consulting business. Prior to joining the District, Ms. Plajzer spent 10 years working in various capacities for water and sewer public utility providers. Prior to joining the public utility sector, Ms. Plajzer worked as a consultant for a nationally recognized engineering firm specializing in providing engineering and planning services to numerous utilities across the United States. Ms. Plajzer holds a Professional Engineer’s license in California and Virginia, and Treatment and Distribution Operator certifications from the California State Water Resources Control Board. She obtained her Bachelors of Civil Engineering from the University of California, Irvine and Masters of Engineering from University of California, Davis. Ms. Plajzer also holds a Masters degree in Public Administration from San Diego State University.

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Assistant General Manager - CFO/Treasurer - Richard Aragon

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Richard Aragon is the Assistant General Manager - CFO/Treasurer of Rancho California Water District, where he oversees the District's Finance and Administration divisions, and manages the budget, debt, rate-setting, property management, and treasury functions.

Mr. Aragon joined the District as its Finance Manager in February of 2015 and was appointed Treasurer in October 2015. Mr. Aragon came to the District with 10 years of various finance, accounting, and auditing experience, specializing in water districts, special districts, and municipal governments. Most recently, he served as the Finance Director and Treasurer for a regional water wholesaler in Los Angeles and previously was responsible for overseeing accounting, financial reporting, and grants management for the North Slope Borough, a county municipality in Alaska. Mr. Aragon is a Certified Public Finance Officer with the Government Finance Officers Association, and earned his Bachelors of Science in Accounting from California Baptist University in Riverside, California.
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Director of Administration - Jason Martin

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Jason Martin was appointed the District’s Director of Administration in November 2015. He is responsible for overseeing the District’s Customer Service, Information Technology, Administration and Water Use Efficiency functions. Previously, he served as the District’s Information Technology and Customer Service Manager since 2006. Prior to joining RCWD, Mr. Martin was the Business Manager for a telecommunications construction firm and the Training, Project Management and Field Services Manager for an e-911 emergency response system vendor. Mr. Martin has a Bachelors degree in Management Information Systems from California State University, San Bernardino.

Kelli Website Photo22

District Secretary - Kelli Garcia

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Ms. Garcia was appointed the District Secretary in July 2005. She has more than 10 years of administrative experience in the public sector. Ms. Garcia has been with the District since 1992, and has served in the capacity of Administrative Assistant in the Board Administration Department since 1999 and as Deputy District Secretary since 2002.

Eileen Dienzo_option1

Director of Human Resources - Eileen Dienzo

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Eileen Dienzo started with the District in October 2011 and came with over 18 years of public sector human resources experience. Ms. Dienzo oversees the District’s Human Resources Department. She directs and implements comprehensive human resources programs and services, handles employee relations, workers compensation, risk management, and safety management matters. Prior to joining RCWD, she worked for the City of Rialto Human Resources Department for 13 years, six of those years as the Human Resources Manager. Prior to Rialto, she worked at the City of Riverside for five years in the Human Resources Department. Ms. Dienzo has a Bachelor of Arts degree from California State University, San Bernardino in Public Administration and received her Master of Arts Degree in Organizational Management from the University of Phoenix.