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Environmental Consulting Services

Through its staff, affiliations and acquisitions, DEI has acquired a professional staff with combined experience of more than 20 years in the environmental field. Our experts include engineers, geologists, modelers, wetland scientists and biologists. Through serving our municipal, industrial and commercial clients, we have developed strong working relations with regulatory agencies on the state and local level. Although our client base is situated in the Fox Valley area, DEI has provided environmental services to clients throughout the Chicago metropolitan area, the collar counties and beyond.

Wetland Delineation
  • Fish Studies
  • Macroinvertebrate Studies
  • Mussel Studies
  • Threatened & Endangered Species Surveys & Consultation
  • Combined Sewer Overfloor Long Term Control
Aquatic Survey
Aquatic Survey

Some of our professional services include:

  • Waste Management
  • Transfer Station Design and Construction
  • Emergency and Spill Response Plans
  • Underground Storage Tank (UST) Management and Removal
  • Sampling and Analysis of Soil, Sediments, Groundwater, Wastewater and Air Emissions
  • Preliminary Assessments / Site Inspections
  • Environmental Site Assessments (Phase I and Phase II)
  • Site Characterization
  • Hydrogeological Studies
  • Remedial Investigations, Design and Engineering
  • Feasibility Studies
  • Risk Management Plan
  • Air Permits
  • Storm Water and Wastewater Permits
  • Water Quality Investigations and Assessment
  • Wetlands Delineation and Mitigation
  • Stream Surveys

Some of our clients include:

  • Fox Metro Water Reclamation District
  • City of Aurora
  • City of Naperville
  • Environmental Contractors of Illinois, Inc.
  • Fox Valley Park District
  • Kane County Forest Preserve
  • United States Postal Service
  • West Aurora School District
  • City of Yorkville
  • City of St. Charles
  • City of Woodstock
  • City of Plano
  • Village of Sugar Grove
  • Old Second National Bank