TETRA TECH, INC.

Tetra Tech, Inc. specializes in environmental consulting services with deep expertise in remediation oversight, risk assessment, and technical support for contaminated site management. The firm delivers comprehensive regulatory compliance services for complex environmental investigations, including Remedial Investigation/Feasibility Studies (RI/FS), removal site evaluations, groundwater modeling, and cleanup verification for legacy uranium mining sites and industrial contamination. Their technical capabilities encompass environmental data analysis, fate and transport modeling, exposure assessment, and long-term stewardship planning under federal frameworks such as CERCLA and RCRA. A key differentiator is their sustained focus on high-stakes, federally mandated cleanup programs, particularly those involving tribal lands and abandoned uranium mines, where they provide science-based decision support to ensure protective and sustainable outcomes. The contractor maintains a primary relationship with the Environmental Protection Agency, consistently supporting regional offices in enforcement, oversight, and technical review of environmental actions. Their work for EPA centers on legacy contamination sites, including uranium mines in the Southwest, where they facilitate interagency coordination, document preparation, and implementation of interim actions. They also provide specialized environmental assessment services to the Department of Transportation for infrastructure projects requiring NEPA compliance, demonstrating adaptability across federal environmental mandates. The core industry focus is environmental consulting services under NAICS 541620, with secondary engagement in environmental research and remediation. Tetra Tech positions itself as a technical authority in federal environmental remediation, particularly for complex, long-term contamination scenarios involving radiological and heavy metal pollutants. Their work aligns with national priorities in environmental justice and tribal environmental health. Tetra Tech, Inc. is a 2L entity headquartered in Oakland, California, with no government certifications on record. The firm operates as a specialized technical services provider, strategically positioned to support federal environmental agencies through science-driven, compliance-focused consulting.