DELLAVALLE - Key Persons


Annie Collins Burkholder

Job Titles:
  • Partner
  • Soil Scientist
Annie attended the University of Dallas where she studied Biology and Environmental Science. She then earned a Master's degree in Soil Science from U.C. Davis in 2009. She is a Certified Crop Adviser and a Certified Professional Soil Scientist. Annie has served on the board of the California Chapter of the American Society of Agronomy and the Soil Improvement Committee. As a Soil Scientist and Agronomist for Dellavalle Lab, Annie serves clients throughout Yolo, Solano, Colusa and the surrounding counties.

Ben Nydam - President

Job Titles:
  • President
  • President of Dellavalle Laboratory and Has Been
Ben is the President of Dellavalle Laboratory and has been with the company since 1990. He grew up on an almond farm near Turlock, CA and studied Agricultural Engineering at Cal Poly, San Luis Obispo. Ben is an irrigation specialist and a Certified Crop Adviser. In addition, he is a past President of the American Society of Agronomy California Chapter and a member of the Technical Advisory Committee for the North Fork Kings Groundwater Sustainability Agency. As an Agronomist, Ben serves clients throughout Tulare and Kern counties.

Carlos Olmedo

Carlos studied Agriculture at Woodland Community College and Business at CSU Sacramento. He has worked for Dellavalle Lab since 2012. He started as a Field Technician where he gained experience and studied to become a Certified Crop Adviser. Carlos is also a Distribution Operator (D1) and Treatment Operator (T1). He now serves both agricultural and environmental clients throughout Sacramento, San Joaquin, Stanislaus and surrounding counties.

Chad Reenders

Job Titles:
  • Manager ( Hanford
Chad studied Agricultural Engineering at Cal Poly San Luis Obispo. Prior to joining the Dellavalle Team, he gained valuable experience working on a farm that produced food and forage crops, as well as tree nuts. Chad has been a guest lecturer at Cal Poly, Cuesta, and Fresno State in soil and plant science classes. Chad is a Certified Crop Adviser serving Southern Fresno, Northern Tulare, Kings, San Luis Obispo, and Santa Barbara counties.

Christian Duran

Job Titles:
  • Advisor
Christian is a certified crop advisor working as an Agronomic Support Tech with the Fresno Agronomy team. Born and raised in the Central Valley, he is no stranger to agriculture and the daily impact it has on rural farming communities. Christian obtained his B.S. in Plant Science from Fresno State and looks forward to servicing growers with their irrigation management, crop nutrition, and soil fertility needs.

Cynthia Tiemersma

Job Titles:
  • Dairy Technician
Cynthia was raised on her family's dairy farm in Tulare County. She attended Dordt University where she graduated with a degree in Agriculture: Biotechnology. As a Dairy Technician for Dellavalle Lab, she assists dairy farmers with nutrient management, Dairy General Order regulations and requirements, and Comprehensive Nutrient Management Plans. Cynthia primarily works in Kings and Tulare Counties but also assists dairymen throughout the San Joaquin Valley.

Danyal Kasapligil - VP

Job Titles:
  • Vice President
  • Vice President / Secretary / Treasurer / Manager ( Davis
Danyal received a BS in Plant Science from U.C. Davis, and an MS in Agriculture from Cal Poly. He has worked as a certified crop advisor for over 25 years and is also a certified professional agronomist, water system distribution operator (D-1) and a licensed pest control advisor. A past president of the California Irrigation Institute he currently serves on the advisory board for the western region certified crop advisors. Danyal manages our office in Davis and works with growers throughout northern California, providing assistance with plant nutrition, soil fertility, irrigation management, and soil site assessments for new developments.

Lisa Rubin

Job Titles:
  • Technical Consultant
Lisa specializes in Regulatory Compliance. She works on Waste Discharge Requirement reporting, Sediment and Erosion Control Plans, Comprehensive Nutrient Management Plans, and many other permitting and compliance projects. Previously she worked at the State Water Board and has been with Dellavalle Lab since 2015. Lisa is a Certified Crop Advisor and Certified Technical Service Provider for CAP 102. In addition, she has a Bachelor's in Plant Health Studies from Fresno State and an Associate's in Natural Science and General Agriculture from Reedley College.

Maribel Garcia

Job Titles:
  • Environmental Specialist / Administrative Assistant ( Hanford )
  • Food Safety Specialist / Office Administrator ( Hanford )
Maribel attended Cal Poly, Pomona where she earned her bachelors in Microbiology with a minor in Chemistry. Maribel assists clients in the Tulare and Kings counties.

Martin James

Job Titles:
  • Environmental Specialist
Martin studied water treatment at Fresno City College and Sacramento State Water Programs. He has worked with drinking water systems since 2008 before joining Dellavalle in 2018. He specializes in environmental services and private/public water systems. Martin is a Distribution Operator (D3) and Treatment Operator (T2) serving Merced, Madera, Fresno, Kings, and Tulare counties.

Nat Dellavalle - Founder

Job Titles:
  • Board Advisor
  • Founder
  • Founder of Dellavalle Laboratory, Inc
Nat is the Founder of Dellavalle Laboratory, Inc. He earned a Bachelor's in Soil Science from Cal Poly. After graduation, Nat gained valuable on-farm experience prior to setting up several successful agricultural laboratories. He is a Certified Crop Adviser and Certified Professional Agronomist/Soil Scientist. Nat has served as President of the American Society of Agronomy -California Chapter, President of the Soil and Plant Analysis Council, and has served on many University, Agricultural and Environmental committees.

Scott Fridlund

Job Titles:
  • Principal
  • Lab Director
Scott has a Masters of Agricultural Chemistry from U.C. Davis. He worked in the Division of Agricultural and Natural Resources Lab prior to joining the Dellavalle Laboratory team in 1993.

Scotty Sakamoto

Scotty is a Certified Crop Advisor and works as an Agronomist for Dellavalle Lab. Born and raised in Clovis, California, he obtained a BS in Business Administration from Cal Poly San Luis Obispo along with an AA in Plant Science through Reedley College. Scotty services clients throughout Fresno, Madera, and Merced counties working with a diverse range of row and tree crops. Scotty's journey in the world of agriculture is a testament to the fusion of business insight and agricultural stewardship. Whether you are a farmer seeking expert advice or an enthusiast eager to learn more about agriculture, Scotty is your go-to agronomist ready to share his knowledge and experience to help maximize yields while minimizing environmental impact.