Biological Resources

Burleson’s biological resource services include:

  • General and threatened, endangered, and special status species surveys
  • Seasonal and perennial aquatic habitat analysis (wetland delineation and wetland assessments)
  • Environmental awareness training and construction monitoring
  • Permitting (401, 404, 1602) and consultation (Sections 7 and 10 ESA)
  • Environmental document preparation (EIR, EIS, HCP, IS/MND, HRP, BA, BE)
  • GIS mapping

Threatened, Endangered, and Special Status Species Surveys

Burleson offers a wide range of botanical, wildlife, and habitat assessment services within California’s diverse ecological communities. Our biologists conduct surveys and provide habitat assessments for special-status plant and wildlife species, including those protected under the federal and state Endangered Species Acts. Burleson staff members have worked throughout the state in a variety of habitats and natural communities. Burleson staff assesses project-related impacts and consults with regulatory agencies to avoid, minimize, and/or mitigate habitat impact. Our biologists are familiar with species’ habitat components, life histories, and agency-approved survey methodologies. Burleson biologists have the experience to conduct habitat assessments and protocol-level surveys for special status species including:

  • Burrowing Owl
  • California Red-Legged Frog
  • CTS habitat assessment
  • Desert tortoise
  • Giant garter snake
  • Rare, threatened, and endangered plant species
  • Swainson’s hawk
  • Vernal pool tadpole and fairy shrimp
  • Western pond turtle
  • Western spadefoot toad

Seasonal and Perennial Aquatic Habitat Analysis

Our biologists have training and experience conducting amphibian and reptile surveys using state and federal agency protocols and have developed standardized methodologies for conducting habitat assessments and visual encounter surveys for a variety of amphibian species. Burleson performs surveys for special-status amphibians and aquatic reptiles throughout California, and has developed management strategies; prepared avoidance, conservation, and mitigation measures.

Burleson has extensive experience conducting assessments and delineations of wetlands and other waters of the United States throughout California and other Western States. Our biologists are experienced with a broad range of freshwater and coastal wetland communities. We conduct wetland assessments to identify the presence and approximate extent of potentially jurisdictional waters of the United States (regulated under the federal Clean Water Act) and waters regulated by the California Department of Fish & Wildlife. We consult the US Fish & Wildlife Service and NOAA under the federal Endangered Species Act regarding potential effects to federally listed threatened and endangered species. Field investigations involve the collection of site-specific data, including soil characteristics, assessment of plant species composition, and evaluations of hydrologic conditions. In addition to proven land-based delineation methodology, Burleson uses state-of-the-art techniques—such as GPS, drones, and aerial photography—to map the extent of wetlands and waters of the US.

Representative Biological Resources Projects

National Park Service

  • Mojave Desert Tortoise Surveys

Major Utility

  • Humboldt Bay Power Plant AFC Environmental Assessment, Wetland Delineation, Biological and Cultural Resources Surveys and Monitoring, and Costal Commission Consultation


  • Environmental Regulatory Support Services
  • Rancho Seco Nature Preserve Environmental Regulatory Support Services
  • Solano Wind Project Phase 3 Burrowing Owl Survey


  • Former Fort Ord Vegetation and California Tiger Salamander Surveys
  • Former Fort Ord Vegetation Monitoring Plan and Wetland Restoration and Monitoring Plan

US Forest Service

  • San Gabriel Biological Evaluation

Western Area Power Administration (Department of Energy)

  • North Area Vegetation Management Environmental Assessment
  • Sacramento Area Voltage Support Environmental Impact Statement

Biological Resources Expertise

  • Existing environmental conditions
  • General & special status wildlife
  • General & special-status plants
  • Mitigation measures
  • Potential Impacts
  • Vegetation & wetland monitoring
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Client Satisfaction

"Burleson Consulting was excellent to work with and very professional. They assembled a top-notch team of experts to study and propose solutions to the water supply challenges at Sutter National Wildlife Refuge. The communication was excellent throughout the project. This included project staff, contracting personnel, and interested stakeholders. As a result, the project was completed on time and on budget. I would not hesitate to use or recommend Burleson Consulting in the future."Kevin Clancy, Project Manager – United States Bureau of Reclamation

"Burleson provided exceptional services under this contract. Because of their successful work, they were awarded a $7M follow-on IDIQ contract in 2014, that also encompasses biological monitoring at former Fort Ord. They have consistently improved their plant material collection and propagation techniques and pass the savings onto the federal government. Burleson is a valuable team member on Fort Ord and I feel that they are true stewards of the environment." William K. Collins, BRAC Environmental Coordinator, US Army Corps of Engineers

"Burleson has been able to work with several government agencies (to include tribal groups and natural resource trustees) and several responsible parties to assist in progressing this site to a stage where technical and agency concerns can be identified and resolved. Strengths – overall and in depth understanding of mine site and CERCLA dynamics. Deficiencies – none. I would not hesitate to use Burleson." Daniel McMindes, USACE Liaison to EPA, US Army Corps of Engineers

"Burleson helped to manage the Sacramento Area Voltage Support Environmental Impact Statement. They came through and were always available during an ‘energy crisis’ in California. I will continue to work with them."Loreen McMahon, Project Manager - California Public Utilities Commission

"We appreciated Burleson’s great work, re: completing the draft EIR on the scheduled date (it was a tremendous task, but they completed it). All of them put a lot of work into it (it was a true team effort). They should all be proud of this accomplishment given the changes and obstacles encountered along the way, and I cannot thank them enough."Glenn M. Shuder, AIA, CFM, Chief Architect - Project Director, SMUD

"We chose Burleson Consulting because of their experience with the specific project matter in technical and regulatory issues and for their record of excellent communication skills in complex, multiparty projects. They were responsive to the matter and were sensitive to all relationships between the parties involved."Kevin Mayer, PE, Project Manager - USEPA