TECHNICAL PRECISION IN ENVIRONMENTAL REMEDIATION Focused investigations to complex cleanup programs
Yosemite National Park Cascades Remediation Project | El Capitan, California
O N E T E PA T E A M . C O M P R E H E N S I V E S O L U T I O N S . P R OV E N P E R F O R M A N C E . Established in 2005, Tepa, LLC (Tepa) is owned by the Paskenta Band of Nomlaki Indians. The Tepa Companies are wholly owned subsidiaries of Tepa, which provides a common administrative and executive management team to reduce client costs and improve project efficiency. Each of the Tepa Companies works independently and collaboratively to provide construction, engineering, environmental, industrial, and technology services. ENGINEERING & ENVIRONMENT DIVISION
W H Y T E PA ▶
$3B in revenue since 2005
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$1B bonding capacity with $250M per project
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350+ projects concurrently with combined value of more than $1B
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Experience modification rating below industry standard
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Small-company flexibility with large-company financial controls
▶ The Paskenta Nomlaki Foundation The Tepa Companies have successfully executed a wide range reinvests Tepa’s success into the of complex environmental investigation and remediation projects Tribe and local communities for multiple U.S. Army Corps of Engineers (USACE) districts, the Air Force Civil Engineer Center (AFCEC), the Department of the Interior, the U.S. Environmental Protection Agency (USEPA), the U.S. Navy, and additional federal and commercial clients over the past 20 years. Tepa’s experience with federal, tribal, and commercial clients means we anticipate requirements; manage risks before they affect performance; and deliver safe, compliant, high-quality work on schedule and within budget.
Tepa’s environmental remediation services are designed to address and mitigate environmental hazards effectively. Our team specializes in addressing Hazardous, Toxic, and Radioactive Waste (HTRW) sites, following regulatory processes to include Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA); Resource Conservation and Recovery Act (RCRA); and state risk-based remediation programs. We have extensive experience conducting investigations and designing/implementing remedial actions at sites contaminated with legacy and/or emerging contaminants (e.g., PFAS) using a variety of technologies and approaches including High-Resolution Site Characterization (HRSC), monitored natural attenuation, enhanced bioremediation, in situ chemical reduction, in situ chemical oxidation, pump and treat/groundwater recirculation, air sparging, soil vapor extraction, and soil removals. Our professionally certified staff includes the following: ▶ Environmental Engineers
▶ Chemists
▶ Professional Geologists
▶ Certified Safety Professionals
▶ Project Management Professionals
▶ Cultural Resource Specialists
Engineering & Environment Division: Environmental Remediation
▶ Geographic Information System (GIS)
Professionals ▶ Registered Environmental Managers
T E PA O F F I C E LO C AT I O N S & D E D I C AT E D S TA F F
ENGINEERING & ENVIRONMENT BUSINESS I N F O R M AT I O N Tehama ECS 8(a) CERTIFIED UNTIL 09/2029
541620 Primary NAICS D517NDLLS5Q8 UEI 83G86 CAGE Tehama TS
8(a) CERTIFIED UNTIL 12/2030
562910 Primary NAICS KC4ACZE5GEX5 UEI 8DKA8 CAGE Tepa PS
8(a) CERTIFIED UNTIL 09/2030
541310 Primary NAICS XY6AWTVMAJU4 UEI 8QV98 CAGE
Lava Cap Mine Remedial Action
Tehama SMALL BUSINESS
CLIENT: USACE SACRAMENTO LOCATION: NEVADA CITY, CALIFORNIA CONTRACT: W9123824D0001/W9123826FA013 AWARDED TEPA ENTITY: TEHAMA TS, LLC The Lava Cap Mine Remedial Action project involves constructing and commissioning a semi-passive treatment system to address mine-impacted water at Operable Unit 1 of the Lava Cap Mine Superfund Site near Nevada City, California. The technically complex scope integrates site preparation, earthwork, liner and limestone treatment-bed construction, foundations, structural steel, secondary containment, process piping, chemical-feed systems, tanks, clarifiers, filtration equipment, electrical distribution, instrumentation, and SCADA controls.
541330 Primary NAICS YDH4LRQMJ8N3 UEI 5T0G8 CAGE Tepa ES SMALL BUSINESS
541330 Primary NAICS ZYCMHB9DM1N8 UEI 92WG0 CAGE
Work must be executed in rugged, weather-sensitive terrain under CERCLA requirements and stringent USACE quality, safety, and environmental controls. Final activities include wet commissioning, performance testing and optimization, operator training, as-built documentation, and Operations and Maintenance manuals to support reliable long-term treatment performance.
Optimized Remediation Contract at Moody AFB CLIENT: USACE SAVANNAH | LOCATION: MOODY AFB, GEORGIA CONTRACT: W912EP16D0009 | TO: W912HN20F1024 AWARDED TEPA ENTITIES: TEPA EC, LLC AND TEHAMA, LLC We are conducting site restoration to achieve Performance Objectives at nine Installation Restoration Program sites with chlorinated solvent-related contamination. Scope includes maintaining established remedies, implementing optimizations to enhance remedial progress at applicable sites, and achieving site-specific objectives. Remediation activities are being conducted pursuant to RCRA and under an RCRA Hazardous Waste Corrective Action Permit with regulatory oversight provided by the Georgia Environmental Protection Division.
Engineering & Environment Division: Environmental Remediation
C O N T R AC T I N G V E H I C L E S * Department of the Air Force
C O N TAC T S Sherry Gibson PE, PMP President, Engineering & Environment Division
Shawn Eichelberger PG Vice President, Environmental Remediation
Amanda Anding PMP Engineering & Environment Business Development Manager
Sherry.Gibson@Tepa.com
Shawn.Eichelberger@Tepa.com
Amanda.Anding@Tepa.com
(719) 437-5131
(719) 318-3057
(832) 867-4780
AE NEXT | Capacity: $200M Term/Length of Contract: 2021–2026 Contract Number: FA890321D0039 AFCEC AE ES 2023 | Capacity: $1.5B Term/Length of Contract: 2025–2035 Contract Number: FA890325D0015 ECOS | Capacity: $3.5B Term/Length of Contract: 2026–2034 Contract Number: FA890326D0065
GSA MAS & OASIS+
T H E T E PA C O M PA N I E S In our owning Tribe’s native language, Tepa means “tomorrow.” We are committed to building the future and looking toward tomorrow with our clients. Since 2005, the Tepa Companies have successfully delivered over 2,200 projects to clients nationwide, on time and within budget. We utilize all the resources, capabilities, and experience of our Tepa Companies to deliver solutions to our clients, providing small-company flexibility with large-company processes and controls. Currently, the Tepa Companies have more than 500 employees and are completing over 350 projects valued at $1.4B combined. As a tribally owned organization, the Tepa Companies take the responsibility to preserve and enhance tribal traditions and culture to heart, and we work with tribal communities to infuse their rich legacy into every project.
8(a) MAS | Capacity: $1M SINs: 562910RMI, 541620, OLM Term/Length of Contract: 2025–2030 Contract Number: 47QRAA25D00DW MAS Small Business | Capacity: $1M/SIN SINs: 541620, 541330ENG, 562910REM, OLM Term/Length of Contract: 2018–2028 Contract Number: 47QRAA18D00A4 OASIS+ SB IDIQ Term/Length of Contract: 2024–2029 Contract Number: 47QRCA25DS865
USDA Forest Service ALF Environmental Response Capacity: $7M Term/Length of Contract: 2024–2029 Contract Number: 12444325A0014
USACE Baltimore District 8(a) SATOC IDIQ Military & Civil Planning Capacity: $4.5M Term/Length of Contract: 2026–2031 Contract Number: W912DR26DA010
TRIBALLY OWNED SMALL BUSINESS The Tepa Companies support federal agencies through authorized contracting pathways, including the Small Business Administration 8(a) Business Development Program, when appropriate and in accordance with applicable statutes and regulations. As a tribally owned 8(a) participant, we help agencies meet mission requirements efficiently while maintaining strong governance, internal controls, and performance accountability.
USACE Kansas City District
Under 13 Code of Federal Regulations §124.506(b), tribally owned 8(a) participants may be eligible for sole-source awards with standard thresholds of $25M for civilian agencies and $100M for DoD agencies. Awards above these thresholds may be made when the Contracting Officer determines a higher value is appropriate and documents the rationale in writing in accordance with the regulation.
USACE Louisville District
We view these contracting pathways as a responsibility: delivering proven performance, disciplined compliance, and responsible stewardship of federal resources while supporting long-term community reinvestment. Tepa’s owning Tribe, the Paskenta Band of Nomlaki Indians, is a federally recognized tribe based in Northern California, east of the Coastal Range in what is now known as Tehama and Glenn Counties. The Tribe actively supports its members and surrounding area residents through diversified business holdings and contributions to community organizations from the Paskenta Nomlaki Foundation.
8(a) ERS SATOC IDIQ | Capacity: $9.9M Term/Length of Contract: 2021–2026 Contract Number: W912DQ21D3014
USACE Los Angeles District 8(a) ERS w/ MMRP IDIQ SATOC Capacity: $9.9M Term/Length of Contract: 2026–2031 Contract Number: W912PL26DA010 8(a) ECS IDIQ SATOC | Capacity: $20M Term/Length: 2023–2028 Contract Number: W912QR23C0024
USACE Mobile District SB ERS IDIQ MATOC | Capacity: $219M Term/Length of Contract: 2023–2033 Contract Number: W9127823D0004
USACE Omaha District 8(a) ECS IDIQ SATOC | Capacity: $20M Term/Length of Contract: 2022–2028 Contract Number: W9128F22R0057 8(a) Rapid Response #6 SATOC Capacity: $35M Term/Length of Contract: 2023–2031 Contract Number: W9128F00R0023
USACE Sacramento District 8(a) ERS w/MMRP IDIQ SATOC Capacity: $98M Term/Length of Contract: 2023–2028 Contract Number: W9123824D0001
USACE Seattle District 8(a) PRAC MATOC IDIQ | Capacity: $245M Term/Length of Contract: 2026–2031 Contract Number: W912DW26DA013
USACE St. Paul District
Tepa.com
@Tepa-LLC
@TepaCompanies
QA Inspection Services | Capacity: $10M Term/Length of Contract: 2021–2026 Contract Number: W912ES22D0004 *Current as of October 2026