About Us

E-21 Engineering, Inc., (E-21), is a privately- owned environmental engineering and construction firm with experience in a wide range of environmental, hydrogeologic, contamination remediation, storm water management, earthwork construction, demolition, and site renovation management projects.

E-21 is a fully-insured corporation that provides services to top 500 corporations, financial institutions, private individuals, other engineering firms, city and county governments, legal firms, developers, and construction firms.

The senior members of our firm bring over 30 continuous years of environmental and geotechnical engineering, hydrogeologic, and engineering geology experience to your project. As a professional company, and as individuals, we strive to provide excellence in our service to our clients. To us, our occupation and our service are personal as well as professional.

Services performed by E-21 since 1991:

  • Phase I, II, and III Environmental Site Assessments (ESAs),
  • Soil and Groundwater Contamination, Investigations and Monitoring,
  • Colorado Storage Tank Reimbursement Fund Assistance
  • Underground Storage Tank Removals and Closures
  • Hydro-Geologic Site Characterizations
  • Soil and Groundwater Contamination Clean-up
  • Site Restoration Construction Management
  • Site Earthwork Construction.
  • Remediation System Construction

E-21 personnel have been involved in over 1000 projects including investigations and/or clean-up at over 100 gasoline stations.

  • Mitigation of impact to groundwater, surface water, surface soil, subsurface soil, and soil vapor.
  • Involved contaminants have included petroleum, chlorinated solvents, heavy metals, radioactive particles, PCBs, and herbicides/pesticides.