CalERBA: California Ecological Restoration Business Association
  • Home
  • Member Projects
  • Advocacy & Resources
  • CalERBA Leadership
  • More
    • Home
    • Member Projects
    • Advocacy & Resources
    • CalERBA Leadership
CalERBA: California Ecological Restoration Business Association
  • Home
  • Member Projects
  • Advocacy & Resources
  • CalERBA Leadership

CalERBA Leadership

Hal Holland

Stephanie Freed

Stephanie Freed

CalERBA Board President


Regional Director, Western Region, Westervelt Ecological Services


Hal Holland oversees the strategic and daily operations of Westervelt Ecological Service’s largest region in terms of projects, staff, and revenue. He is responsible for the development of mitigation and conservation projects, business development, s

CalERBA Board President


Regional Director, Western Region, Westervelt Ecological Services


Hal Holland oversees the strategic and daily operations of Westervelt Ecological Service’s largest region in terms of projects, staff, and revenue. He is responsible for the development of mitigation and conservation projects, business development, sales, project compliance, and long-term land stewardship. In this role, Mr. Holland oversees a team of industry-leading experts in the realms of mitigation banking, land acquisition and valuation, ecology, habitat restoration and construction, regulatory permitting, and land management. Since the inception of Westervelt in 2006, he has directly led or facilitated the development and operation of all 12 mitigation banks approved in the Western region. He continues to serve as the lead Program Manager for large turnkey mitigation projects. He has extensive experience with banking documents (e.g., prospectus and mitigation banking instrument), policy, and Interagency Review Team approval processing; as such, he has contributed to California banking legislation, interagency banking templates, and new crediting models.

Prior to joining Westervelt, Mr. Holland worked for a leading mitigation banking firm as the conservation group leader, and also spent 5 years with EDAW, a national environmental consulting firm, as a project manager, biologist, and CEQA compliance specialist. He received his bachelors in Ecology, Behavior, and Evolution from the University of California, San Diego. Mr. Holland has been active in The Wildlife Society for the last decade, serving as the president and Western Section representative for the Sacramento-Shasta chapter.

Stephanie Freed

Stephanie Freed

Stephanie Freed

CalERBA Board Vice-President


Assistant Director of Operations, Ecosystem Investment Partners


Stephanie acts as an Assistant Director of Operations at Ecosystem Investment Partners.  She has a background in ecology and over 13 years of experience in the environmental industry. Stephanie is professionally recognized as a Certified Ecologica

CalERBA Board Vice-President


Assistant Director of Operations, Ecosystem Investment Partners


Stephanie acts as an Assistant Director of Operations at Ecosystem Investment Partners.  She has a background in ecology and over 13 years of experience in the environmental industry. Stephanie is professionally recognized as a Certified Ecological Restoration Practitioner, a Professional Wetland Scientist, and Trainer of the California Rapid Assessment Method. 


At Ecosystem Investment Partners, Stephanie manages large-scale restoration projects across a variety of ecosystems in California and throughout the western and southern US.  She oversees the evolution of complex projects through their successful execution, including implementation of baseline assessments, outreach with relevant stakeholders, design development, procurement of necessary project entitlements, construction, and adaptive monitoring. 

Mark Cederborg

Stephanie Freed

G. Braiden Chadwick

CalERBA Board Member


Vice President and Managing Partner, Hanford Arc


Starting in 1999, Mark has delivered more than 150 projects in resource agency jurisdictional areas and subject to substantial biological and physical resource mitigation and monitoring measures. Mark is an expert in reconciling project design, design intent, safety cons

CalERBA Board Member


Vice President and Managing Partner, Hanford Arc


Starting in 1999, Mark has delivered more than 150 projects in resource agency jurisdictional areas and subject to substantial biological and physical resource mitigation and monitoring measures. Mark is an expert in reconciling project design, design intent, safety constraints, budget constraints, and permit conditions with construction logistics and costs. He ensures that field personnel and subcontractors properly engage design and inspecting engineers, resource monitors, and safety personnel. He also brings deep experience in every aspect of public works contracting. He routinely reviews insurance, bonding, labor compliance, and contract terms. His financial experience includes regular review and financial assessment of Hanford’s projects, programs and planning. Mark’s goal is to maintain Hanford’s firm standards for a high-quality end-product and a positive construction experience for project stakeholders.

G. Braiden Chadwick

G. Braiden Chadwick

G. Braiden Chadwick

CalERBA Board Member


Partner, Mitchell Chadwick


Braiden’s clients include Fortune 500 companies with business interests in California, including commercial, residential, agricultural, and industrial businesses.  His representation regularly includes appearances before local, regional, state and federal administrative agencies in connectio

CalERBA Board Member


Partner, Mitchell Chadwick


Braiden’s clients include Fortune 500 companies with business interests in California, including commercial, residential, agricultural, and industrial businesses.  His representation regularly includes appearances before local, regional, state and federal administrative agencies in connection with use permits and other entitlements. He handles all aspects of environmental compliance under the California Environmental Quality Act (CEQA) and the National Environmental Policy Act (NEPA), land-use permitting and any resulting litigation. His permitting work extends from California’s largest ski resorts, to residential developers, oil gas and energy companies, wineries, agricultural entities, landfills, mitigation/conservation banks, high-speed rail, and mining companies.

As one of the state’s most knowledgeable authorities on mitigation/conservation banking, Braiden is consistently on the faculty for legal and industry conferences on cutting-edge banking issues. The key to his success is working closely with the California Department of Fish and Wildlife, the U.S. Fish and Wildlife Service, and the Army Corps of Engineers to entitle mitigation banks throughout California.  This work is highly specialized, and includes in-depth title examination, negotiation with landowners, cities, Counties, and State and federal agencies to resolve conflicts with mineral rights, endangered species, jurisdictional waters, traditional land-use laws, and helping create crediting methodologies used by administrative agencies.  He understands both the regulatory risks as well as the business interests driving his client’s projects.  His professional working relationships with agency staff and counsel, as well as his unparalleled experience in this area of the law, makes Braiden uniquely suited to help his clients get their projects approved quickly and economically.

Tim DeGraff

G. Braiden Chadwick

Tim DeGraff

CalERBA Board Member


Regional General Manager, Western States, Resource Environmental Solutions


Tim DeGraff serves as Regional General Manager for the Western states for RES. Tim is a certified professional wetland scientist with experience in wetland habitats throughout the United States with extensive experience in California. Before jo

CalERBA Board Member


Regional General Manager, Western States, Resource Environmental Solutions


Tim DeGraff serves as Regional General Manager for the Western states for RES. Tim is a certified professional wetland scientist with experience in wetland habitats throughout the United States with extensive experience in California. Before joining RES, Tim was CEO for WRA, Inc., a California-based professional consulting services firm focusing on plant, wildlife and wetland ecology and regulatory compliance.

Tim has conducted over one hundred wetland delineations and has taught the wetland delineation certification class through San Francisco State University for ten years. His specialty is complicated projects involving large wetland impacts, endangered species consultation, complex mitigation requirements, and interagency negotiation. Tim was also the lead scientist and led the effort to entitle the largest wetland mitigation bank in California, the first stream mitigation bank in California, and several innovative conservation banks including the first amphibian conservation bank involving translocation.

Mike Linton

G. Braiden Chadwick

Tim DeGraff

CalERBA Board Member


Vice President, Properties and Land Development, Vulcan Materials Company, Western Division


Michael Linton has an extensive background in corporate finance and for over 20 years he has been responsible for managing Vulcan's real estate portfolio throughout the state of California.  He has reclaimed old mining sites in

CalERBA Board Member


Vice President, Properties and Land Development, Vulcan Materials Company, Western Division


Michael Linton has an extensive background in corporate finance and for over 20 years he has been responsible for managing Vulcan's real estate portfolio throughout the state of California.  He has reclaimed old mining sites into restored natural habitats, productive farmland, and water recharge facilities.  Capitalizing on the company's land reclamation experience he has headed Vulcan's efforts into land conservation, mitigation banking and water conservation as a standalone business activity.

Skip Moss

Sara Johnson

Sara Johnson

CalERBA Board Member


Chief Strategic Officer, Natural Resources Group


Skip Moss is the Chief Strategic Officer for Natural Resources Group, Inc. (NRG) and serves as President of NRG’s Mitigation & Conservation Division. He is a professional biologist with over twenty years of experience in the fields of mitigation planning and development

CalERBA Board Member


Chief Strategic Officer, Natural Resources Group


Skip Moss is the Chief Strategic Officer for Natural Resources Group, Inc. (NRG) and serves as President of NRG’s Mitigation & Conservation Division. He is a professional biologist with over twenty years of experience in the fields of mitigation planning and development, land management and ecological consulting. Skip has entitled thirty conservation banks and custom mitigation projects, resulting in the permanent protection of over 30,000 acres of endangered species and wetland habitat. Skip works collaboratively with the wetland and wildlife regulatory agencies to create mitigation and conservation projects that fulfill recovery goals.  Skip has worked extensively with a variety of public and private sector clients to develop mitigation projects that fulfill permit requirements or build value on existing land holdings. Skip has broad expertise in both the development of conservation easements between private landowners and non-profit groups and in the calculation of endowments for the perpetual management of habitat preserves.

Sara Johnson

Sara Johnson

Sara Johnson

CalERBA Executive Director

SJohnson@ecologicalrestoration.org 


Sara Johnson is the Executive Director of the California Ecological Restoration Business Association. She is an attorney with a background in and passion for conservation and economic solutions to public environmental issues. Prior to her position with CalERBA, Johnson worked i

CalERBA Executive Director

SJohnson@ecologicalrestoration.org 


Sara Johnson is the Executive Director of the California Ecological Restoration Business Association. She is an attorney with a background in and passion for conservation and economic solutions to public environmental issues. Prior to her position with CalERBA, Johnson worked in the environmental compliance office of Patuxent River Naval Air Station on the Chesapeake Bay and as a law clerk with the Department of Justice, Environment and Natural Resources Division in Washington, D.C. 

Johnson holds an undergraduate degree in Environmental Studies from the University of Richmond and a Juris Doctorate from the University of Virginia, where she served as the Articles Development Editor of the Virginia Environmental Law Journal. She is licensed to practice law in Virginia and California.  She also represents the national industry as Executive Director of the Ecological Restoration Business Association.


CalERBA is a tax-exempt 501(c)6 organization.


Copyright © 2022 California Ecological Restoration Business Association - All Rights Reserved.