Close this search box.

ECORP Continues to Grow

William Duvall Headshot

ECORP feels fortunate to continue to be able to steadily increase our staff through this past year. Here are some highlights of staff who have joined ECORP since the middle of 2020.


Nicholas Bizzell – Associate Archaeologist, Santa Ana Office
Mr. Bizzell is an Associate Archaeologist with over 10 years of experience in cultural resources management. Mr. Bizzell has participated in numerous archaeological projects throughout the State of California, experience that includes working with clients in both public and private sectors. Mr. Bizzell has substantial archaeological experience with cultural resources monitoring, inventory surveys, excavation and subsurface testing, and laboratory analysis for projects in northern and southern California. Additionally, Mr. Bizzell is cross trained as a paleontological monitor for projects requiring both archaeological and paleontological monitoring. 

Headshot photo of ECORP staff; Nicholas Bizzell


Stacie Tennant – Senior Wildlife Biologist/Project Manager, Santa Ana Office
Ms. Tennant has over 24 years of experience processing resource agency permits and authoring and managing the preparation of environmental documents for transportation, water, electric utilities, planning, and development projects throughout southern California. She has extensive experience in conducting and coordinating sensitive-species surveys; focused surveys for Threatened/Endangered plant and wildlife species; reconnaissance surveys; and habitat evaluations for Endangered, Threatened, and sensitive floral and faunal species.  She has authored and managed the development of biological resources sections of numerous Environmental Impact Reports (EIRs), Biological Technical Reports, Biological Assessments (pursuant to Section 7 consultations with the U.S. Fish and Wildlife Service [USFWS]), Natural Environment Studies (NESs) (pursuant to California Department of Transportation [Caltrans] guidelines), focused surveys for sensitive species, tree reports, resource management plans, mitigation monitoring reports, Habitat Assessments and Determination of Biologically Equivalent or Superior Preservation (DBESP) Reports for the Western Riverside County MSHCP, and general biological assessments and constraints analyses. She is experienced at implementation of field programs to track, report, and support compliance requirements and mitigation measures. Ms. Tennant has worked with a diverse range of clients, assisting them with navigating often complex projects and identifying creative solutions to assist in the protection of biological resources.

Portrait photo of ECORP staff;  Stacie Tennant


William Duvall – Senior Air Quality/GHG/Noise Analyst, San Diego Office
With over 13 years of experience, Mr. Duvall joined the ECORP air quality practice in the San Diego office at the beginning of March this year. After obtaining his B.S. from SDSU in Environmental Engineering he began working on a variety of air quality and energy projects for clients ranging from manufacturing facilities to large utilities and government agencies. Prior to coming aboard at ECORP Will was spending the bulk of his time managing ambient air quality network operations and maintenance for the Ports of Los Angeles, Long Beach, and Hueneme. He specializes in complex solutions for air quality and meteorological data collection and management for permitting, planning, and public relations applications.

Headshot photo of ECORP staff; William Duvall

See our Careers page for more Environmental Consulting Careers at ECORP.

Sign up for the ECORP Newsletter

Sign up for the ECORP Newsletter to receive updates related to development, environmental regulations, compliance and more.

By submitting this form, you are consenting to receive marketing emails from: . You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact