HDR Aptim LLC

HDR Aptim LLC, a subsidiary of HDR Environmental, Operations and Construction, Inc., provides remedial design, remedial investigation, feasibility studies, and remedial action oversight services to the Environmental Protection Agency across five EPA regions as a prime contractor (97% of recent awards) competing full-and-open under the EPA Remedial Acquisition Framework: Design and Engineering Services (RAF DES) indefinite-delivery/indefinite-quantity contract.

HDR Aptim operates as a Superfund site remediation specialist, anchoring its federal footprint entirely within EPA's environmental cleanup mission. The vendor holds 31 prime delivery orders under RAF DES, the single parent vehicle governing its federal work, with combined potential value of $1.23 billion. Representative awards include a $5.99 million firm fixed-price task order from EPA Region 3 for remedial design at the Peck Iron and Metal Superfund site in Greenwood Village, Colorado (awarded April 2023, completion April 2028); an $8.96 million cost-plus-fixed-fee delivery order from EPA Region 8 for interim remedial design and sitewide remedial investigation and feasibility study at the Nelson Tunnel site in Creede, Colorado (awarded March 2023, completion March 2028); and a $4.46 million cost-plus-fixed-fee order from EPA Region 2 for remedial design activities at the Des Tutu Wellfield site in the U.S. Virgin Islands (awarded June 2022, completion November 2027). Across these and other orders, HDR Aptim delivers geotechnical engineering, site characterization, design support, and remedial action oversight, frequently subcontracting specialized services such as laboratory analysis, drilling, equipment rental, and investigation-derived waste management.

Customer concentration is high but regionally dispersed across EPA's administrative footprint. EPA Region 2 leads by award count with 17 awards and $31.4 million combined potential value; EPA Region 3 leads by potential value with 4 awards totaling $1.17 billion — a single large order creating substantial dollar concentration. EPA Region 9 contributes 7 awards valued at $7 million, while Regions 1 and 8 each account for 2 awards. All 32 awards (31 prime, 1 sub) are directed to environmental remediation, with 25 categorized under PSC code for Environmental Systems Protection and 4 under Architect and Engineering General. Activity has decelerated year over year, declining from 9 awards in 2022 to 3 in 2024 and 2 through July 2026, signaling a tightening recompete opportunity or completion of larger orders. Eighteen awards with combined potential value of $52.6 million face ultimate completion within the next twenty-four months, exposing the vendor to recompete risk on that dollar volume.

Service Contract Inventory data shows SCI-reportable invoicing of $29.5 million across fiscal years 2022 through 2025, with $9 million invoiced in FY2023 (peak activity), declining to $7.8 million in FY2025. Reported federal FTE delivery remained between 10.5 and 18.4 FTEs across the same period, with FY2023 reporting 15.5 FTEs on average contract-level basis and FY2025 settling at 12.2 FTEs. Government-paid hourly rates on SCI-reportable contracts ranged from a 10th percentile of $6.89 per hour to a 90th percentile of $250.03 per hour, with median rates around $174.37 per hour, reflecting a portfolio mix of senior technical labor and lower-cost clerical or support work. Across SCI-reportable prime contracts, subcontractors performed approximately 7% of total contractor hours; named subs include Schnabel Engineering DC, Inc. and Schnabel Engineering, LLC for geotechnical design, Testamerica Laboratories Inc. (Eurofins Testamerica Pittsburgh) for analytical testing, Eichelbergers, Inc. for drilling and well installation, and Soil & Materials Engineers Inc. for geotechnical consulting. HDR Aptim's delivery model leans toward self-performance — the vendor self-performed all hours on multiple individual orders including the Des Orange Valley Regional Site and the Niagara Mohawk remedial action oversight orders — while maintaining a small, stable subcontractor network for highly specialized technical services.