DNL Ecological Services

  • Biological Monitoring and Environmental Inspection of construction activities to ensure compliance with all biological and environmental rules and regulations. Typical issues include sensitive species, rare plants, noxious weed abatement, raptors, nesting birds, streams, wetlands, protected trees, air quality, stormwater pollution prevention and erosion control.

  • Agency Approved: Approved by the U.S. Fish and Wildlife Service and the County of Santa Barbara for construction monitoring and surveying for certain special status species. We have completed the Desert Tortoise Council’s Surveying, Monitoring and Handling Techniques Workshop.

  • Mr. Lee is an Approved Biologist providing services in Santa Barbara County, Ventura County, Los Angeles County, San Bernardino County, Riverside County, Orange County and Kern County.

  • ​Biological Surveys for wildlife, special status species, raptors, and nesting birds before and during construction. Nesting bird surveys are among our specialties.

  • Environmental Training Programs for construction staff, agency representatives and sub-contractors on numerous construction projects. Flexible training styles adjust to project needs – from large ‘kickoff’ meeting presentations to small, ‘tailgate’ groups in the field.

  • Ecological Restoration after construction with native plants; wetland and riparian restoration, stream and river bank stabilization using native vegetation, and on-site direction of labor crews.

Areas of Specialization

  • Transmission Line Construction and Reconductoring
  • Pipeline Construction & Maintenance
  • Highway Construction
  • ​Wind Farms
  • Fiber Optic Cable Installation and other linear projects

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Understand Your Environmental Responsibility

In the state of California, businesses that have an impact on the environment must obtain permits from local and state agencies before they can proceed with their work. An environmental permitting expert can evaluate the impact your business will have and help you file for the correct permits from the state. For help with environmental permitting in CA, call on David Lee.

California requires environmental permits for a variety of projects, including projects that impact plants, fish, and wildlife and projects within the coastal zone. David N. Lee has a Master’s degree in Biology and specializes in biological monitoring for linear projects such as wind farms, highway construction, pipeline construction, and cable and transmission line placement. Because these projects are linear and local waterways are not, you need to understand the impact your project will have on the environment.

David N. Lee is an approved biologist in the following counties:

  • Kern
  • Los Angeles
  • Orange
  • Riverside
  • San Bernardino
  • Santa Barbara
  • Ventura

We’ll be with you from the beginning to the end of your project to help you understand and mitigate the impact on the environment. We’ll start with a big-picture plan, follow through with meetings and adjustments in the field, and finish with any necessary restoration. We can also provide training for your contractors and staff so everyone knows how best to protect the environment throughout the construction process.

Contact Us Today

For more information about California environmental permitting requirements, contact DNL today. You can call 805-946-1700 or email

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