THE LIMTIACO CONSULTING GROUP CIVIL ENGINEERING AND ENVIRONMENTAL CONSULTANTS Welcome to the TLCG website!!! The Limtiaco Consulting Group offers services in civil engineering, wastewater management, solid waste management, environmental services and consulting, and construction management. The Limtiaco Consulting Group 615 Piikoi Street, Suite 1605 Honolulu, Hawaii 96814 Phone: (808) 596-7790 ...