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GEI Consultants and Chadwick Ecological Consultants Merge 

Combined company to provide integrated ecological and engineering services nationwide

BOSTON, Mass. and LITTLETON, Co. – August 14, 2006 -- GEI Consultants, Inc., one of the nation’s leading geotechnical, environmental, and water resources engineering firms, announced today that Chadwick Ecological Consultants, Inc., and Chadwick & Associates, Inc., have merged into GEI. The combined firm will have projected billings of over $46 million and a staff of 285 operating from 16 offices and providing services in 40 states.

With offices in Littleton, Colorado and Tucson, Arizona, Chadwick Ecological is a full-service ecological consulting firm with experience in the design, implementation, and management of aquatic studies throughout the United States since 1979.  The firm prides itself on providing clients with thorough ecological studies culminating in scientific reports which meet or exceed the requirements of various State and Federal regulatory agencies, in a timely fashion, and at a reasonable cost.  Chadwick & Associates’ ecological laboratory provides compliance and research-level aquatic toxicity testing, as well as nutrient analyses and biological sample analysis.

“GEI and Chadwick Ecological share similar corporate philosophies and a commitment to excellence in the environmental field,” said Jim Chadwick, president at Chadwick Ecological Consultants.  “We expect to capitalize on the potential synergies of combining GEI engineering knowledge with our ecological problem solving.” 

GEI was founded to provide geotechnical engineering for the design of buildings, bridges, roads, nuclear power plants, and dams. Since then, GEI has expanded its practice to include environmental and water resources engineering based on its comprehensive knowledge of soil behavior, groundwater flow, and earth science as contaminated soil and groundwater emerged as critical issues.   Through this merger with Chadwick Ecological, GEI is now expanding its services further to include ecological sciences, because these services are frequently required on projects involving soil, rock, surface water and groundwater challenges.

“As a nation we are facing two conflicting trends: a growing population is putting more demand on the environment, and a population that wants a better environment in which to live.  Strengthening our ecological practice is very important to the future of GEI, and we feel that Chadwick is an excellent fit with our company’s philosophy and culture.  Together, we will work closely with our clients to find better ways to accommodate growth while mitigating its impact on our environment,” said Frank Leathers, P.E., president of GEI Consultants.

About GEI Consultants, Inc.

Founded in 1970, GEI’s talented staff of nearly 250 multi-disciplined engineers and scientists delivers integrated geotechnical, environmental, and water-related planning, design, and construction solutions to diverse clientele from offices nationwide.  Over its 35-year history, the firm has provided a broad range of consulting and engineering services on over 10,000 projects in 50 states and 22 foreign countries.  For more information, please visit www.geiconsultants.com/.

aquatic life ecology consultantsCHADWICK ECOLOGICAL DIVISION is an aquatic ecological consulting firm with over 25 years of experience in the design, implementation, and management of aquatic ecological studies.

Chadwick Ecological Division is an aquatic ecological consulting firm providing extensive knowledge in analyses of aquatic ecosystems covering a wide range of environments from small streams to large reservoirs.  We have experience evaluating a wide range of potential stressors to aquatic life, from municipal effluents to mining to flow modifications to habitat alterations.


Chadwick Ecological Division conducts aquatic studies specifically related to:
  • Long-term monitoring of aquatic populations
  • Evaluating the effects of water quality on aquatic life
  • Developing site-specific water quality and biotic standards
  • Impact assessment, NEPA / EIS
  • Habitat inventory and evaluation
  • Habitat enhancement and restoration
  • CERCLA / Superfund / NRDA support
  • Litigation support
  • Sampling of aquatic life: fish, benthic invertebrates, zooplankton, algae
  • Permit compliance
  • Ecological Risk assessment support
  • Bioaccumulation and biotic tissue sampling
  • PHABSIM and IFIM modeling
  • Evaluating flow regimes, minimum flows
  • Species distribution and inventory
  • FERC relicensing

Staff Project Experience

Regional experience of Chadwick personnel includes projects in over 40 states in the U.S. as well as Canada, Mexico, Panama, Dominican Republic, Jamaica, Costa Rica, Ecuador, Sweden and Antarctica providing both regional and site-specific knowledge and expertise for detailed ecological assessments. 

Our experience in the analysis of aquatic ecosystems is extensive, covering a wide range of environments and a wide range of potential stressors to aquatic life.  A complete listing of our project experience is available upon request.  However, to give an idea of the types of projects we can accomplish, representative examples of our projects are presented throughout this website.