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Coast Ridge Ecology (CRE) is an ecological consulting firm with extensive experience in providing endangered species surveys, construction monitoring, wildlife and botanical surveys, restoration planning, permitting assistance, wetland delineations, research and education services for a variety of public and private sector clients. CRE works closely with clients and agencies to assist clients through the environmental permitting process.

CRE is owned by principal biologist Patrick Kobernus, who has over 20 years of experience as a biological consultant in California. CRE staff includes environmental professionals with a range of expertise on endangered species and environmental compliance.




  • Biological Assessments
  • Construction Monitoring
  • Protocol Surveys for Rare and Endangered Plant and Animal Species
  • Wetland Delineations and Mapping
  • Mitigation, Monitoring and Restoration Plans
  • Habitat Management and Reporting
  • U.S. Fish and Wildlife Service (USFWS) Section 7 and Section 10 (Habitat Conservation Plan) Consultations
  • Initial Study Checklists and EIS/EIR Biological Resources Sections
  • California Department of Fish and Wildlife 1600 Streambed Alteration Agreements
  • U.S. Army Corps of Engineers and Regional Water Quality Control Board, CWA Section 404 and 401 Permitting Consultations, California Coastal Act Permitting Consultations
  • Joint Aquatic Resources Permit Applications (JARPA)
  • National Environmental Protection Act (NEPA) and Natural Environment Studies (NES)
  • California Environmental Quality Act (CEQA) Compliance Analysis and Permitting

CRE clients consist of private individuals and corporations and public agencies such as the San Francisco Public Utilities Commission, Pacific Gas and Electric, San Mateo County Parks Department, Port of San Francisco and the U.S. Fish and Wildlife Service.

CRE is a certified Local Business Enterprise (LBE) by the City and County of San Francisco, and a certified Small Business Enterprise (SBE) by the State Department of General Services.