Seres-Arcadis SB JV2 LLC

Seres-Arcadis SB JV2 LLC, a minority-owned, small disadvantaged business joint venture based in Charleston, South Carolina, operates as a prime contractor delivering environmental remediation, site investigation, and architect-engineering services for hazardous, toxic, and radioactive waste (HTRW) projects at federal installations, primarily to the Department of the Army Corps of Engineers across multiple districts. The joint venture comprises Seres Engineering & Services LLC, an SBA-certified 8(a) participant, and Arcadis, leveraging combined expertise in PFAS remedial investigations, groundwater monitoring, soil remediation, military munitions response, and facility restoration under environmental statutes including CERCLA, RCRA, and NEPA.

Seres-Arcadis SB JV2 LLC competes entirely as a prime contractor (27 awards, 100% prime split) with a $920.1 million combined potential value across its federal footprint. Representative work includes a $29.96 million definitive contract from the Army Corps of Engineers Baltimore District for PFAS remedial investigations across twelve Army installations in the Northeast Region (awarded February 2022, completion February 2029); a $4.73 million delivery order for base-wide PFAS remedial investigation at Martin State Air National Guard Base in Maryland (awarded November 2024); a $4.28 million delivery order for remedial investigation at Joint Base Andrews in Maryland; a $1.66 million delivery order for interim PFAS treatment system design at Biddle Horsham Air National Guard installation in Pennsylvania (awarded January 2026, Total Small Business set-aside); and a $1.37 million delivery order from the Defense Logistics Agency for environmental services in Philadelphia through a full-and-open procurement (awarded September 2025).

Customer concentration is extreme and district-specific within the Army Corps of Engineers. The top five customer agencies account for 96% of awards, with the Mobile District anchoring 61% of combined potential value ($567.3 million across six awards), the Baltimore District holding 27% ($245.5 million across ten awards), the New England District 10% ($90 million across two awards), and the Philadelphia District 2% ($15.7 million across seven awards). A single Department of the Army contract accounts for the remaining $1.7 million. The Baltimore District dominates award count (ten awards) while the Mobile District dominates dollar value, driven by two large indefinite delivery contracts worth $219 million and $99 million respectively, both set aside for small business.

Vehicle holdings across the Corps of Engineers districts total approximately $646 million in combined ceiling value across five named parent IDIQs. The largest is the $200 million multiple-award IDIQ with Baltimore District for architect-engineering services to support HTRW and military munitions projects (awarded July 2023, completion August 2028), which has generated eight task orders valued at $15.5 million combined. The $219 million multiple-award IDIQ with Mobile District for environmental remediation services (awarded December 2022, completion June 2032, designated Total Small Business set-aside) has generated one $2,500 task order. The $99 million multiple-award IDIQ with Mobile District for environmental restoration program support (awarded March 2023, completion March 2028) has generated one $1,000 task order. A $10 million single-award IDIQ with Philadelphia District for architect-engineering and geoenvironmental services (awarded September 2022, Total Small Business set-aside, completion September 2027) has generated seven task orders valued at $7.3 million combined. The $90 million multiple-award IDIQ with New England District for HTRW services (awarded November 2022, completion November 2027) has generated two task orders valued nominally.

Activity has been variable, ranging from seven awards in 2022 to nine in 2024, with two awards in 2025 and one in 2026. Seven awards carry ultimate completion dates inside the next twenty-four months, representing $5 million in combined potential value and recompete exposure. The joint venture subcontracts laboratory and drilling services to specialized environmental firms including ALS Group USA (ALS Environmental) for water analysis and testing at Fort Drum, Cascade Remediation Services for drilling services at the former Solomons Naval Amphibious Training Base, and Eurofins Lancaster Laboratories for laboratory analysis at the same site. Seres-Arcadis SB JV2 LLC's primary capability concentration sits in engineering services (22 awards) and environmental remediation (5 awards) under NAICS codes oriented to architect-engineering and environmental systems protection, with 100% of awards routed through the Department of the Army and its subordinate Corps of Engineers districts.