Meet the Team

Our staff has training and expertise in human and ecological risk assessment, pesticides and fertilizers, civil/environmental engineering, environmental toxicology, chemistry, biology, and planning.  Our staff includes a licensed professional engineer, an Engineer-In-Training (EIT), Pest Control Advisers (PCAs), DPR Qualified Applicators (QALs), a Certified Crop Adviser (CCA), an Industrial General Permit (IGP) Trainer of Record (ToR) and Qualified Industrial Stormwater  Practitioner (QISP), and an SWRCB Stormwater Qualified SWPPP Developer (QSD)/Practitioner (QSP). 

Mike Blankinship, President

We are members of:

• Association of California Water Agencies (ACWA)
• California Association of Pest Control Advisors (CAPCA)
• California Invasive Plant Council (Cal-IPC)
• California Farm Bureau Federation
• California Weed Science Society (CWSS)
• California Stormwater Quality Association (CASQA)
• Golf Course Superintendents Association of Northern California (GCSANC)
• North American Lake Management Society (NALMS)
• Society of Environmental Toxicology and Chemistry (SETAC)
• The Wildlife Society (TWS)
• Yolo County Farm Bureau
• Solano County Farm Bureau
• Sacramento County Farm Bureau

​​Blankinship & Associates, Inc. is certified by the State of California as a small business. Learn more about our State and Federal contracting capabilities.

​The firm was founded in 2000 by Michael Blankinship. Mike has an MS in Agricultural and Environmental Chemistry from UC Davis in the Departments of Environmental Toxicology and Environmental Engineering and a BA in Chemistry from Saint Michael's College, located in Colchester Park, Vermont. He is a California registered professional ​engineer (Civil) and is a California Department of Pesticide Regulation (DPR)-licensed Pest Control Adviser (PCA), IGP QISP, ToR, and QSD/QSP.

Stephen Burkholder 
Senior Biologist, CCA​, PCA
​
Environmental Biology, B.S. 
​UC Davis (2005)

Steve Metzger 
Senior Scientist

Environmental Studies, B.S.
​ CU Boulder (2008)

John Roncoroni 
Senior Weed Scientist, PCA

Horticulture, M.S.
UC Davis (1999) 
Environmental Policy Analysis & Planning, B.S.
UC Davis (1982)

Nikki Slade 
Project Scientist, QAL
​
Forensic Science, M.S.
UC Davis (2014)
Environmental Toxicology, B.S.
UC Davis (2011) ​

Kelly Trunnelle
Staff Scientist

Ag & Environmental Chemistry, PhD
UC Davis (2012)​
​Chemistry, B.S.
San Francisco State University (2005)
 ​

Alyssa Nagai 
​Staff Scientist, QAL
​
Environmental Toxicology, B.S.
UC Davis (2015)

Michelle Clauzel 
Staff Engineer, EIT, QISP

Environmental Engineering, M.S.
UC Davis (2021) 
Civil and Environmental Engineering, B.S.
CSU, Sacramento (2018)

Michael Zadeh
​Assistant Environmental Scientist
​
Applied Forensic Chemistry, B.S.
English, B.A.
UC Davis (2020)

James Lem 
Staff Scientist

Animal Science, B.S.
UC Davis (2016)

Collin McVey 
Assistant Environmental Scientist

​Environmental Studies, B.S.
CSU, Sacramento (2021)

Susanna Keilig
Assistant Environmental Scientist

Biology, B.S.
Roger Williams University (2016)​ ​

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