Patrick O. Mahoney

President

Professional Registration
California State Contractors License #313843, Class C61 & C27
International Society of Arboriculture Certified Arborist #WE-1172

Mr. Mahoney founded West Coast Arborists, Inc. in 1972. As President and Chief Executive Officer, Mr. Mahoney oversees the complete operation of the company. Under his direction the company has grown from 3 employees and 2 trucks to over 400 employees with a 400 plus unit fleet. Life Member in good standing of Western Chapter ISA, Society of Commercial Arborists, Municipal Arborists Association, Street Tree Seminar, Tree Care Industry Association, Maintenance Superintendents Association, Utility Arborists Association, California Oak Foundation, the Palm Society and associated with many other environmentally concerned organizations.

Professional Affiliation
Past President 1996-97 - Western Chapter I.S.A.
Served 1989-97 - I.S.A. Certification Committee
Founder - So. California Tree Trimmers Jamboree
Award of Merit - Western Chapter I.S.A., 1997
Award of Achievement - I.S.A., 1998

Rose M. Epperson

Vice President

Professional Registration
California State Contractors License #654265, Class C61 & D49
International Society of Arboriculture Certified Arborist #WE-1045
Bachelor of Business Administration, Argosy University

Mrs. Epperson has been with West Coast Arborists, Inc. since August 1979, and she has been a director at WCA since 1992. Her experience lies in accounting and administration. She is responsible for all administrative and accounting functions on a corporate level. She has been involved in the implementation and management of our computerized accounting, estimating and job costing programs. Member in good standing of Tree Care Industry Association, Street Tree Seminar, Western Chapter International Society of Arboriculture and various other civic organizations.

Professional Affiliation
Past President & Honorary Life Member - W.C. I.S.A.
Past President - Street Tree Seminar, 1994
Award of Merit - Western Chapter I.S.A., 2005
President’s Award - Western Chapter I.S.A., 1997

Richard Mahoney

Vice President

Professional Registration
International Society of Arboriculture Certified Arborist #WE-1171
Bachelor of Business Administration, University of Houston, Texas

Mr. Mahoney has been associated West Coast Arborists, Inc. since 1972, he has over thirty years in the arboriculture field. He is responsible for internal operations, management of fleet maintenance, repairs and purchasing. Prior to his present position with West Coast, he spent two years as Vice President of Operations for Golden Coast Environmental Services, a computer oriented urban forestry consulting firm in Irvine, CA. With extensive background in information systems management, Mr. Mahoney oversees the computer operations of West Coast Arborists, Inc. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Randy Thompson

Vice President, Area Manager

Professional Registration
International Society of Arboriculture Certified Arborist #WE-1043

Mr. Thompson has been with West Coast Arborists, Inc. since September of 1978. He has over twenty-five years experience in the arboriculture field. Responsibilities within the company are broad. He is responsible for estimating, scheduling, personnel and daily operations. As an Area Manager, he is responsible for field operations and management of crews throughout Orange County. Through his employment he has gained valuable experience in computer estimating and costing programs which are essential in the efficient operation of tree care crews. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Andy R. Trotter

Vice President, Field Operations Manager

Professional Registration
International Society of Arboriculture Certified Utility Arborist #WE-642AU
Certified Urban Forester #103, California Urban Forests Council
Certified Treecare Safety Professional, CTSP-142

Mr. Trotter has been with West Coast Arborists, Inc. since August of 1982. Prior to that, he had eight years experience in the tree care industry. After working as a Foreman for eight years, Mr. Trotter was promoted to Field Operations Manager in March of 1990. As Field Operations Manager, he supervises all of the field operations as well as managing our wood recycling facility in Irvine. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits and has over thirty years experience.

Professional Affiliation
Past President - Street Tree Seminar
President - California Urban Forest Council
Past Board Member - MSA
Award of Achievement - Western Chapter ISA, 2006

Deborah Depasquale

Vice President, Contract Services

Professional Registration
International Society of Arboriculture Certified Arborist #WE-3812
B.A., Entrepreneurial Management minor in Political Science
     California State University, Fullerton
Employee of the Year, WCA 1995

Ms. DePasquale has been with West Coast Arborists, Inc. since November of 1993. Before that time, she worked as a consultant for WCA and was a Senior Account Executive for a finance company for five years. Her responsibilities include managing the Customer Service Department, Billing, Inventory and Master Plans and Special Projects. Ms. DePasquale has over sixteen years computer experience and fourteen years in the tree care industry. She receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Christopher Crippen

Vice President, MIS

Professional Registration
Microsoft Certified Professional

Mr. Crippen has been with West Coast Arborists, Inc. since October of 1995. At that time, he had four years experience as a computer programmer for an insurance company. As a computer programmer, he supports the tree inventory software created by West Coast, as well as customizes each software package for each City. In addition, he maintains the inventory databases compiled by the Inventory Specialists. He has over fifteen years computer programming experience and twelve years experience in the tree care industry.

Victor Gonzalez

Vice President, Marketing

Professional Registration
International Society of Arboriculture Certified Arborist #WE-7175A
Bachelor of Science, Engineering Technology
     California State University, Long Beach

Mr. Gonzalez has been with West Coast Arborists, Inc. since June of 1999. During the previous two years, he worked as a Public Works Inspector for a private engineering firm in Orange and Los Angeles counties. Before that time, he served the City of Bellflower for four years as an Executive Assistant to the Director of Public Services. His responsibilities included contract administration, project management, and customer service within the Public Works Department. He has over seven years of city government and public works experience. Currently, Mr. Gonzalez is involved in creating a comprehensive sales and marketing plan for WCA.

Steve Hunt

Area Manager, Central California

Professional Registration
International Society of Arboriculture Certified Arborist #WE-1044
International Society of Arboriculture Certified Treeworker #TW-426
Certified Crane Operator, NCCCO

Mr. Hunt has been with West Coast Arborists, Inc. since May of 1991. Before that time, he worked for a residential tree service as a Leadworker/Foreman for five years. He was the eighth Foreman here at WCA and was promoted to Area Manager over ten years ago. As an Area Manager, he is responsible for field operations and management of crews in the Central California/Fresno area. He is also involved in scheduling, evaluation and production of street tree maintenance. Mr. Hunt has over eighteen years experience in the tree care industry. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Dave Cooper

Area Manager, West Los Angeles

Professional Registration
International Society of Arboriculture Certified Arborist #WE-497

Mr. Cooper has been with West Coast Arborists, Inc. since August of 1994. Before that time, he worked as a sales manager for thirteen years. As an Area Manager, he is responsible for field operations and management of crews in the West Los Angeles area. He is also involved in scheduling, evaluation and production of street tree maintenance. Mr. Cooper has over twenty years experience in the tree care industry. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Jason Pinegar

Area Manager, Northern California

Professional Registration
International Society of Arboriculture Utility Certified Arborist #WE-2039AU
Certified Crane Operator, NCCCO

Mr. Pinegar has been with West Coast Arborists, Inc. since December of 1993. Before that time, he worked for a residential tree service as a tree trimmer for two years. As an Area Manager, he is responsible for field operations and management of crews in the Northern California and Bay area. He is also involved in scheduling, evaluation and production of street tree maintenance. Mr. Pinegar has over thirteen years experience in the tree care industry. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Nick Alago

Area Manager, Riverside & San Bernardino

Professional Registration
International Society of Arboriculture Utility Certified Arborist #WE-4396AU
Certified Crane Operator, NCCCO

Mr. Alago has been with West Coast Arborists, Inc. since September of 1999. Before that time, he worked with a residential and commercial tree service for nineteen years. As an Area Manager, he is responsible for field operations and management of crews in the Inland Empire. He is also involved in scheduling, evaluation and production of street tree maintenance. Mr. Alago has over twenty-four years in the tree care industry. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Joseph Bartolo

Area Manager, North East Los Angeles

Professional Registration
International Society of Arboriculture Utility Certified Arborist #WE-2034AU

Mr. Bartolo has been with West Coast Arborists, Inc. since March of 1994. Before that time, he worked for a residential tree service for six years. As an Area Manager, he is responsible for field operations and management of crews in North East Los Angeles county. He is also involved in scheduling, evaluation and production of street tree maintenance. Mr. Bartolo has over sixteen years experience in the tree care industry. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Frank Quinn

Area Manager, South East Inland Empire

Professional Registration
International Society of Arboriculture Certified Arborist #WE-1085
California State Licensed Contractor

Mr. Quinn has been with West Coast Arborists, Inc. since September of 2002. Before that time, he owned his own tree service company for over twenty years. As an Area Manager, he is responsible for field operations and management of crews in the Riverside and San Bernardino Counties. He is also involved in scheduling, evaluation and production of street tree maintenance. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Michael Palat

Area Manager, San Diego County

Professional Registration
International Society of Arboriculture Utility Certified Arborist #WE-6541AU
B.S., Parks & Recreation Management, minor in Environmental Science
     California University of Pennsylvania
ASCA Academy graduate

Mr. Palat has been with West Coast Arborists, Inc. since February of 2003. He brought several years experience working with ArcView and GPS as well as field experience. As an Area Manager, he is responsible for field operations and management of crews in the South Orange County and San Diego areas. He is also involved in scheduling, evaluation and production of street tree maintenance. Mr. Palat has over six years experience in the tree care industry. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits and is Chairman of the San Diego Regional Urban Forests Council.

Robert Thompson

Area Manager, South East Los Angeles

Professional Registration
International Society of Arboriculture Certified Arborist #WE-0915A
International Society of Arboriculture Certified Treeworker #TW-219

Mr. Thompson has been with West Coast Arborists, Inc. since August of 2003. Before that time, he worked for a residential and commercial tree service for twenty years. As an Area Manager, he is responsible for field operations and management of crews in South East Los Angeles county. He is also involved in scheduling, evaluation and production of street tree maintenance. Mr. Thompson has over twenty-five years experience in the tree care industry. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.

Lorenzo Perez

Area Manager, Ventura & Santa Barbara Counties

Professional Registration
International Society of Arboriculture Certified Arborist #WE-7443A
International Society of Arboriculture Certified Treeworker #TW-781

Mr. Perez has been with West Coast Arborists, Inc. since September of 1994. As an Area Manager, he is responsible for field operations and management of crews in Ventura and Santa Barbara counties. He is also involved in scheduling, evaluation and production of street tree maintenance. Mr. Perez has over twelve years experience in the tree care industry. He receives a minimum of 25 hours credit annually in arboriculture continuing education credits.