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GEI Consultants and Chadwick & Associates 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 biological laboratory staffCHADWICK DIVISION is a full service aquatic biological laboratory with over 25 years of experience serving private industry, academia, municipalities, state and federal agencies.

Chadwick Division of GEI Consultants is an aquatic biological laboratory run by aquatic biologists and staffed with biologists – yes, we know what you are asking for when you want an early life stage fathead minnow toxicity test, or you need identifications of benthic invertebrates to the lowest practical taxonomic level for samples taken with a modified Hess sampler!  As biologists, we provide the high quality data you need to measure potential water quality impacts to the fauna of streams and lakes.  Our biologists process samples from freshwater environments throughout the United States, providing the regional and site-specific knowledge necessary to support reliable aquatic ecological assessments.

Chadwick Division aquatic biological laboratory services encompass three broad areas of study:

  • Whole effluent toxicity (WET) testing

  • Benthic invertebrate sample processing from both lake and stream samples

  • Low level nutrient chemistry water quality analysis for limnological (lake) phosphorus and nitrogen studies and TMDLs

Laboratory Quality Assurance

Quality assurance and quality control are important issues for any laboratory, including one that processes biological samples.  Chadwick Division has a commitment to quality, as evidenced by our rigorous in-house Standard Operating Procedures and Quality Assurance/Quality Control documents.  These SOPs and QA/QC manuals cover the full range of services we provide, including WET testing, biological sample processing, and water quality samples.

Chadwick Division has successfully completed audits by the US Geological Survey for our biological sample processing and US EPA for our WET testing.  Our toxicity testing procedures follow EPA approved methods and requirements.  All toxicity test results are documented in a final report with the information necessary for your discharge monitoring report.

We participate in both the acute and chronic portions of the EPA DMR-QA studies and Chadwick Division is certified for WET testing of municipal, mining, and industrial effluents by a number of states.