Scott Yarger, ISA

Biologist / Arborist


Scott Yarger received his Bachelor of Science degree with High Honors in Conservation and Resource Studies from University of California, Berkeley, where his studies focused on environmental policy and land management. His interdisciplinary background includes training in ecology, botany, conservation biology and environmental policy. His minor in Forestry and Natural Resources included field studies in forest ecology and management in the Sierra Nevada ecoregion.

Scott is an ISA Certified arborist (#WE-9300A), and prior to joining WRA, he worked for four and a half years as a consulting utility forester contracted to Pacific Gas and Electric Company (PG&E). He has worked in a wide variety of habitats throughout northern and central California, and his experience includes tree inventory and assessment, biological monitoring, special-status plant surveys, nesting bird surveys, and compliance with State and Federal regulations. Scott has performed surveys for the Federal-threatened California red-legged frog, at riparian work sites in order to comply with California Department of Fish and Wildlife (CDFW) Streambed Alteration Agreements. He has conducted numerous nesting bird surveys concurrent with arborist work in order to comply with the Migratory Bird Treaty Act. He has been trained on rare plant protocol surveys, and worked closely with field biologists in surveys for protected plant species.

At WRA, Scott’s work includes biological resource assessment, rare plant surveys, arborist surveys and reports, and environmental compliance and permitting to include U.S. Army Corps of Engineers (ACOE) section 404 permits, Regional Water Quality Control Board (RWQCB) section 401 permits, U.S. Fish and Wildlife Service (USFWS) Biological Assessments, and CDFW 1602 Lake and Streambed Alteration Agreements.


Permanente Quarry Conditions of Approval Compliance, Cupertino, California

Permanente Creek Fish Passage Restoration Project Permitting, Permanente Quarry, Cupertino, California

2nd and Walpert Arborist Survey, Hayward, California

Mathilda Ave Arborist Survey, Sunnyvale, California

Oddstad Way Biological Resources Assessment,Pacifica, California

Orinda Moraga Streambed Alteration Agreement Compliance, Pacific Gas & Electric Company, Orinda, California

Morgan Fire Emergency Hazard Tree Assessment,Pacific Gas & Electric Company, Mt. Diablo State Park, California


BS, Conservation and Resource Studies, minor in Forestry and Natural Resources. University of California, Berkeley, 2009


ISA Certified Arborist

California Native Plant Society

MSHA Part 46 Certification

Rare Plant Survey Protocols Course CNPS, 2013

California red-legged frog (CRLF) Monitoring Workshop, PG&E

2012 ISA Tree Risk Assessment Qualification (TRAQ) Course