Engineering services in the fields of mechanical, electrical, and plumbing systems; preparation of construction drawings, construction documents, engineering plans, and technical plans for construction and development projects; environmental consulting services, namely, conducting environmental assessments, environmental site reviews, and regulatory compliance reviews; cultural resource management consulting services; cultural resource surveys and assessments; archaeological and historical research and consulting services; consultation regarding compliance with cultural, environmental, and natural resource laws, regulations, and regulatory requirements; tribal consultation services relating to cultural and historic resource preservation; biological consulting services, namely, wildlife surveys, avian studies, bird monitoring, habitat assessments, ecological field investigations, and protected species assessments; and scientific and technical consulting relating to environmental, cultural, biological, and land-use compliance