Tehama ECS LLC

Tehama ECS LLC, a tribally-owned, 8(a)-certified small disadvantaged business, delivers environmental consulting, PFAS data tracking and management, hazardous materials assessment, and environmental compliance services to federal agencies exclusively as a prime contractor. The company operates as a subsidiary of Tepa, LLC, a Native American-owned firm headquartered in Englewood, Colorado, with Tehama based in Kansas City, Missouri. Tehama competes predominantly under 8(a) sole-source and Indian Small Business Economic Enterprise set-asides; full-and-open awards account for a small share of the portfolio.

The customer concentration is heavily weighted to the Department of the Army Corps of Engineers, which accounts for roughly $54.7 million (49% of combined potential value) across thirteen awards split among three district offices: Engineering District Omaha ($29.8 million across 7 awards), Engineering District Louisville ($18.9 million across 2 awards), and Engineering District Sacramento ($6 million across 1 award). The Defense Logistics Agency Energy anchors the second-largest revenue opportunity at $33.3 million on a single data analysis support contract running through December 2027. The Department of the Air Force Civil Engineer Center holds $11.9 million across three awards focused on PFAS toxicology evaluation and environmental assessments at multiple installations. The Environmental Protection Agency Region 7 and Bureau of Reclamation round out the top five, with $2.7 million and $1.3 million respectively. Sixteen distinct customer agencies are served, but the top five account for 89% of combined potential value, indicating substantial customer concentration in Army Corps of Engineers work.

Tehama's primary vehicle is a $20 million 8(a) sole-source indefinite-delivery contract with the Army Corps of Engineers Engineering District Omaha (awarded August 2022, extending through August 2027), which has generated seven task orders worth $11.2 million combined. The company also holds a $4.5 million 8(a) sole-source military and civil planning technical services IDIQ with the Defense Counterintelligence and Security Agency (awarded May 2026, extending through May 2031), a single-award $850,000 Indian Small Business Economic Enterprise IDIQ with the Bureau of Reclamation for conservation easement monitoring and maintenance work in Arizona (July 2024–July 2029), and a $1.396 million EPA Region 7 8(a) sole-source IDIQ for RCRA and ACRES data management services through November 2026. Tehama also holds a GSA Federal Supply Schedule contract (awarded September 2025, extending through September 2030) with a $1 million ceiling, spanning 37 labor categories ranging from administrative support at $51.09/hr through senior program managers at $195.52/hr, all uncleared and requiring education levels from high school through bachelor's degree.

Concrete recent work includes a $33.3 million Department of Energy data analysis support services contract at Joint Base Pearl Harbor-Hickam awarded December 2022 with option year 3 exercised and completion through December 2027; a $14.5 million Army Corps of Engineers (Louisville District) PFAS data tracking support contract awarded September 2023 running through September 2028; a $9.9 million Air Force Civil Engineer Center contract for conceptual site model activities utilizing sequence stratigraphy techniques at multiple installations, awarded September 2022 with completion through September 2027; an $8.9 million Defense Logistics Agency delivery order for PFAS data tracking and program management at Joint Base Andrews, Maryland (awarded September 2023, completing September 2028); a $483,875 Army Corps of Engineers (Omaha District) environmental assessment delivery order at Offutt Air Force Base, Nebraska, awarded August 2025 with completion August 2027; and a $314,433 environmental consulting services delivery order for the Carpenter Snow Creek Mining District in Montana, awarded November 2023 and completed November 2024. Work encompasses environmental compliance documentation, hazardous materials surveys (lead paint, asbestos, building materials), PFAS contamination tracking systems, site investigations, and technical data management across military installations and federal facilities nationwide.

On SCI-reportable federal service contracts, Tehama invoiced $18.1 million across FY2022–FY2025, with FY2025 invoicing of $6.5 million across 3.9 FTEs. The SCI dataset shows invoice-derived government-paid rates with a 10th percentile of $57.40/hr, median of $262.03/hr, and 90th percentile of $428.93/hr, reflecting a mix of entry-level environmental technicians and senior program management roles. Across SCI-reportable prime contracts, subcontractors accounted for 36% of total contractor hours, with four named subcontractors identified. This indicates Tehama builds hybrid delivery teams, subcontracting roughly one-third of effort while retaining core work in-house.

Activity grew from 2022 through early 2024 — ten awards in 2022 to just two in 2024 — then resumed with six awards in 2025 and four through August 2026, suggesting post-2023 recompete activity and potential growth in new vehicle positioning. Eleven awards with combined potential value of $75.1 million reach ultimate completion within the next twenty-four months, concentrated in the Army Corps of Engineers PFAS contracts and EPA Region 7 work, exposing Tehama to significant recompete risk but also opportunity to renew and expand its largest customer relationships. All 32 awards in the portfolio are prime awards; Tehama operates exclusively as a prime contractor and does not appear in federal sub-award records.

Engineering & Architectural Design, Environmental Consulting, Construction Support, Design/Build, Design/Bid/Build,RCRA Hazardous Waste Management, NEPA Program SUpport, Cost Control & Schedule, Geotechnical Support Services, CAD & GIS