Sergius N. Hanson, PE, PG
Principal and Environmental Engineer

Serge has 30 years of experience in construction, demolition, civil engineering, environmental engineering, and project management experience in environmental site investigations, demolition, site restoration, remediation design, and construction throughout the United States in all types of continental climates and terrain. Civil and geotechnical engineering project work experience includes 30 years of both federal civil service, consultant service, and work as a contractor on over 500 projects ranging from site investigations to serving on the design team of the $2 billion Central Arizona Project Aqueduct built by the US Bureau of Reclamation, to operating as a Contractor for $3 million of contamination cleanup, site restoration, and earthwork .

Selected Project Experience

• CityCenter Englewood – Demolition site clean-up, earthwork and redevelopment. Mr. Hanson provided interactive design-build services as an engineer, managed and directed the transportation of 250,000 cubic yards of structural fill and recycled crushed concrete fill, its placement, and grading for the redevelopment of the former Cinderella Shopping Mall site in Englewood, Colorado. This multi-million dollar project included inter-facing with the lead demolition contractor, environmental soil and groundwater investigations, removal and legal disposal of over 4,000 cubic yards of hydrocarbon contaminated waste soils, import of 125,000 cubic yards of structural fill from 11 miles away, removal of old asphalt, removal of 400 buried concrete caissons, and interactive design assistance for earthwork and grading. Total site redevelopment work managed by Mr. Hanson was approximately $2.2 million.

• ARCS Program Coordinator, Denver, Colorado - As Principal Hydrogeologist for Brown and Caldwell Consulting Engineers, responsibilities included coordinating activities with URS Consultants on a 150 million dollar US EPA Alternative Remediation Contracts Strategy (ARCS) contract. Work included teaming arrangements, proposal preparation, cost estimating, and subcontract work execution.

• Mr. Hanson has worked as the director and chief program manager for a government contractor on Federal projects all over the US including Yucca Flats Proposed Nuclear Repository in Nevada for the Depatment of Energy, environmental remediation of Fort Dix in New Jersey for the Army Environmental Center, NEPA program compliance for the Air Force including EA’s and noise studies, annual comprehensive groundwater monitoring and reporting for the Rocky Mountain Arsenal, and work for the Forest Service, USGS, EPA, and other agencies.

Selected Technical Expertise

Environmental and Construction Program Management
Environmental Engineering
Underground Storage Tank Removal and Cleanup
Hydrogeology
Subsurface Soil and Groundwater Site Characterization
Groundwater and Soil Contamination Cleanup
Complete Site Restoration
Earthwork Construction

Education

University of Wisconsin, Eau Claire, 1972 - B.S., Geology
University of Wisconsin, Madison, 1974 - Special Studies, Civil Engineering

Professional and Construction Credentials

Registered Professional Engineer, Colorado
Registered Professional Geologist, Arizona, California, and Wyoming and Certified Engineering Geologist, California
Licensed General Contractor (Class A), Sheridan, Englewood, Vail, and Blackhawk Colorado
Licensed Specialty Contractor (Class D), Lakewood, Louisville, Aurora, and Arvada, Colorado
Member: ASCE, AEG, SAME

Sergius N. Hanson, PE, PG Principal and Environmental Engineer

Sergius N. Hanson, PE, PG
Principal and Environmental Engineer