Natural Investigations' cultural resources specialists provide a wide range of services to help clients achieve compliance with federal, state, and local regulations. We specialize in compliance with the California Environmental Quality Act (CEQA), the National Historic Preservation Act of 1966, the Archaeological Resources Protection Act of 1979, the Native American Graves Protection and Repatriation Act of 1990, as well as the cultural resources requirements of National Environmental Policy Act (NEPA), and various state and local regulations and statutes. During the life of a project, we routinely consult with the appropriate federal, state or local regulatory agencies, local Native American tribes, preservation groups and historical societies, to name a few, to ensure all compliance, agency guidelines, and local interest issues are met.

Cultural Resources Management

Natural Investigations' cultural resource management services help our clients recognize, assess, and preserve cultural resources while avoiding or minimizing their impacts. Our staff meets the requirements of the Secretary of the Interior’s Standards and Guidelines and hold numerous federal and state permits that let us work throughout the country.

  • Records Search and Archival Research—To ascertain the extent of previous cultural resources work within the project area and estimate the number and nature of known cultural resources present.
  • Cultural Resource Surveys—Identifies the cultural resources in a location, usually by a physical reconnaissance of the entire project area, a sample portion of a study area, or a more intensive survey of a previously recorded site.
  • Laboratory Analysis—including sorting, cataloging, flotation and curation preparation from data recovery.
  • Evaluate Resources for Eligibility in the CRHR and/or NRHP—We have expertise in evaluating built environment properties, historic archaeological sites, prehistoric archaeological sites and Traditional Cultural Properties (TCPs) using the National Register of Historic Places (NRHP) and/or the California Register of Historical Resources (CRHR) eligibility criteria.
  • Mitigation and Treatment Measures—Our experienced team recommends appropriate mitigation and treatment measures for each cultural resource, including archaeological sites, TCPs, and built historic resources (e.g., buildings, structures, and engineering features). After completion of comprehensive background research, we would develop a Work Plan to determine the significance of the resource, and any necessary mitigation measures consistent with CEQA Guidelines Section 15126.4(b) and/or NHPA Section 106.
  • Ground Penetrating Radar—This non- invasive method of subsurface data collection is ideal for those projects where excavation is not possible or not desired; the process is more cost-efficient and reliable as a means of gaining information than random subsurface testing.
  • Agency and Native American Consultation—Our qualified staff would be available for consultation with appropriate agencies, Native American tribes, or other interested parties. Natural Investigations staff have decades of experience consulting on cultural resources projects with federal, state, and local agencies, including OHP, SHPO, Federal Energy Regulatory Commission, U.S. Forest Service, U.S. Bureau of Reclamation, Bureau of Land Management, and NPS.
  • Technical Reports and Environmental Impact Report (EIR or EIS) sections—Our capable staff prepares comprehensive cultural resources technical reports documenting the results of all work completed under provisions of Section 106 of the NHPA and/or CEQA and NEPA. The report would also identify observed disturbances or threats to cultural resource integrity, and contain management recommendations, including possible directions for future research.

Natural Investigations’ team of cultural resources experts includes professionals with the experience and expertise to turn technical reports into EIR/EIS sections and to evaluate existing technical reports and determine what additional information may be required for compliance under CEQA/NEPA guidelines.

Natural Investigations also offers full-scale excavation for data recovery, construction monitoring, preservation and treatment plans, impact mitigation management and memoranda of agreements.

          More about our Archaeological / Cultural Resource Assessment methodologies....

Example Projects

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