TETRA TECH EC, INC.

TETRA TECH EC, INC. specializes in environmental remediation services for defense and federal installations, delivering end-to-end solutions for contaminated site cleanup, remedial design, and long-term stewardship. Their technical expertise spans site characterization, groundwater and soil remediation, remedial action planning, and compliance with RCRA, CERCLA, and DoD environmental regulations. The firm executes complex remedial actions at sensitive military sites, including the design and implementation of engineered solutions for operable units at Naval Air Station North Island and program management for multi-phase remediation contracts. Their differentiation lies in integrating scientific rigor with regulatory strategy, ensuring technical defensibility and timely delivery under stringent DoD environmental mandates. The contractor maintains a consistent relationship with the Department of Defense, providing environmental remediation services across Navy and Army installations. Their work supports installation sustainability goals, focusing on hazardous waste management, contaminated media treatment, and remedial action execution at active and closed military facilities. This recurring engagement reflects a trusted partnership rooted in mission-critical environmental compliance and operational readiness support. TETRA TECH EC, INC. is primarily focused on NAICS 562910 — Remediation Services — which in practice means managing the full lifecycle of environmental cleanup projects, from investigation through construction and monitoring. Their vertical specialization is in military environmental restoration, particularly at legacy sites with complex contamination profiles, positioning them as a niche provider for defense infrastructure sustainability. As a 2L entity headquartered in San Diego, California, TETRA TECH EC, INC. operates as a specialized subsidiary within a larger corporate structure, delivering technical services without formal small business certifications. Their geographic presence is anchored in the western U.S., with deep operational familiarity with DoD environmental requirements across coastal and naval installations.