SEER Chemical, Environmental, and Munitions Contract

The U.S. Army Corps of Engineers Engineering Support Center Huntsville awarded this Master IDIQ on October 15, 2021, to procure chemical, environmental, and munitions response services for Department of Defense and interagency customers, with ordering authority through October 14, 2031. The vehicle is unrestricted and multiple-award.

Ordering remains active with 5 years 2 months of remaining authority. The vehicle has generated 53 task orders totaling $465.4 million in combined potential value, of which $198 million (43%) has been obligated. Order flow accelerated sharply in 2024 with 22 awards, then slowed to 7 in 2025 and 1 through mid-2026, suggesting task-order pace is volatile rather than sustained.

Scope spans Department of Defense Environmental Restoration Program (DERP), Formerly Used Defense Sites (FUDS), military munitions response including conventional munitions, Chemical Warfare Materiel, and Biological Warfare Materiel, Environmental Protection Agency Superfund and Brownfield programs, and munitions and explosives of concern clearance. Task orders fund environmental remediation, site investigations, feasibility studies, remedial action, construction support, demolition, and long-term monitoring across military installations and formerly used sites nationwide and in overseas territories. Recent awards include interim measures at Redstone Arsenal, Alabama (ceiling $93.1 million), sources response at Joint Base Cape Cod, Massachusetts, and building demolition at Radford Army Ammunition Plant, Virginia (ceiling $28.6 million).

Hydrogeologic, Inc. dominates the vehicle, holding 14 orders worth $231.1 million in combined potential value—roughly half of all potential value across the vehicle. Weston Solutions Inc. ranks second with 4 orders valued at $75 million, followed by Parsons Government Services Inc. with 4 orders at $40.9 million. Five firms capture 87% of combined potential value; the remainder is distributed across a longer tail of smaller awardees. The top three primes by order count (Hydrogeologic with 14, Dawson Solutions with 7, and EA Engineering with 7) represent 72% of all task orders.

The Department of the Army Corps of Engineers Engineering Support Center Huntsville and Corps of Engineers Engineering and Support Center (two distinct contracting offices) place 74% of all orders and hold $256 million in combined potential value across 26 awards. Army Installation Management Command Headquarters and regional Corps districts round out the customer base across 16 funding agencies total.

Nearly all work is unrestricted: 49 of 53 orders (92%) carry no set-aside, with only 4 orders (8%) designated as small business awards. Task-order ceilings range widely; the vehicle's largest orders exceed $93 million, while many fall in the $2 million to $10 million range. Pricing is mixed, with both firm fixed-price and cost-plus-fixed-fee structures present. Performance spans active military installations, former ammunition plants, proving grounds, and Superfund sites across the continental United States, Alaska, Hawaii, Guam, and Puerto Rico.

This Strategic Environmental Enterprise Resources (SEER) contract will support work assigned to the U.S. Army Corps of Engineers (USACE), including but not limited to, Department of Defense Environmental Restoration Program (DERP); Formerly Used Defense Sites (FUDS); Military Munitions Response (MMR) for various Department of Defense (DoD) customers including conventional munitions, Chemical Warfare Materiel, Biological Warfare Materiel and other munitions-related services (OMRS); DoD Environmental Compliance Program, Environmental Support for Others (ESFO) Program; support to the Environmental Protection Agency (EPA) including Superfund and Brownfield Programs; Formerly Utilized Sites Remedial Action Program (FUSRAP); environmental cleanup for various military and Interagency customers; environmental stewardship, and other environmental related regulatory programs.