Multiple Award Military Munitions Services III (MAMMS III)

The Department of the Army Corps of Engineers Engineering District Baltimore established Multiple Award Military Munitions Services III (MAMMS III), a master IDIQ, on March 19, 2021, with authority to place orders through September 18, 2028—approximately 2 years and 2 months of ordering time remaining. The vehicle carries a $240 million shared ceiling and contracts military munitions response program (MMRP) and hazardous, toxic, radioactive waste (HTRW) services to protect human health and the environment from hazards associated with military munitions and contaminants of potential concern at former and active defense sites.

Of the $102.2 million in combined potential value across 42 task orders, $64 million (63 percent) has been obligated. Order velocity declined sharply between 2021 and 2024—from 13 orders that first year to only 4 in 2024—but rebounded to 10 orders in 2025, the most recent year on record (through September 30, 2025). The single customer—Department of the Army Corps of Engineers Engineering District Baltimore—funds 41 of 42 orders; one order funds the Sacramento district.

Ea-Bay West Joint Venture LLC dominates the vehicle's competitive landscape, holding 16 of 42 task orders worth $32.4 million in combined potential value. Weston Solutions Inc., Hydrogeologic Inc., and Tetra TECH EC Inc. follow, with 5, 10, and 5 orders respectively totaling $26.9 million, $20.6 million, and $13.9 million. These four primes account for roughly 90 percent of all orders. The remaining four contractors hold only a handful of awards. Eighty-three percent of orders carry no set-aside designation; small-business set-asides comprise 17 percent.

Task orders typically range from roughly $750,000 to $5.5 million in ceiling value, with performance periods extending 2 to 5 years. Recent awards (September 2025) include munitions response at Picatinny Arsenal, Fort Hancock, and Army National Guard ranges in Montana, Arizona, and Hawaii, plus operational range assessments under Air Force oversight. Remedial investigations, feasibility studies, remedial designs, remedy-in-place actions, and long-term site monitoring dominate the work profile across domestic and some overseas formerly used defense sites.

Military Munitions Response Program (MMRP) services to protect human health and environmental from hazards associated military munitions and contaminants of potential concern (COPCs). HTRW services incidental to MMRP shall also be performed, if required, to protect human health and the environment from hazards associated with military munitions and COPCs.