Interested in working with us on a project? Email General Manager Edward R. Fleming at for more information.


On August 1, 2018, the U.S. Environmental Protection Agency (EPA) awarded the Environmental Services and Operations (ESO) contract to HelioTech JV, Contract NO: 68HE0118D0014. HelioTech JV is a joint venture comprising Helios Resources, Ltd. and Tetra Tech. The contract encompasses EPA regions 4,5,6,7,8,9,10. The work areas under this ESO contract are separated into seven functional areas (tasks):

  1. General Requirements
  2. Field Work and Analytical Support
  3. EPA-lead Remedy Operations including Long Term Response Action (LTRA)
  4. Assessment/Inspection Activities
  5. Oversight or Oversight Support
  6. EPA-lead Remedial Action or EPA-lead Removal Action Implementation Support
  7. Other Technical Assistance

This small business set-aside contract has a period of performance of a 5-year base period and one 5-year option and a total capacity of $530 million. The total capacity will be shared among all contract holders.

NAVFAC Mid Atlantic IDIQ provides a full range of environmental studies, remediation, and other support services.
NAVFAC SE Remedial Actions Environmental (ETS)
Performing Remedial Actions at Environmentally Contaminated Sites
Environmental Technical Services Contract
NAVFAC WA Environmental Remediation Services
US ACE Mobile District Indefinite Delivery Contract (IDC) for Architect and Engineering (A-E) Services for the Regional Acquisition
Environmental Tools (REAT)

USACE-Los Angeles



541330 Engineering Services


221114 Solar Electric Power Generation

221115 Wind Electric Power Generation

221117 Biomass Electric Power Generation

221118 Other Electric Power Generation

221330 Steam and Air-Conditioning Supply

236210 Industrial Building Construction

236220 Commercial and Institutional Building Construction

237130 Power and Communication Line and Related Structures Construction

238210 Electrical Contractors and Other Wiring Installation Contractors

238220 Plumbing, Heating, and Air-Conditioning Contractors

238990 All Other Specialty Trade Contractors

541310 Architectural Services

541320 Landscape Architectural Services

541611 Administrative Management and General Management Consulting Services

541618 Other Management Consulting Services

541620 Environmental Consulting Services

541690 Other Scientific and Technical Consulting Services

541990 All Other Professional, Scientific, and Technical Services

561990 All Other Support Services

562910 Remediation Services

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