TETRA TECH, INC. - THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) CHEVRON U.S.A. INC. AS THEY FINALIZE AN ENGINEERING EVALUATIONS/COST ANALYSES (EE/CA) FOR THE MARIANO LAKE MINE IN THE EASTERN AGENCY OF THE NA

On Dec 8, 2025, Environmental Protection Agency obligated $261,883.05 to TETRA TECH, INC. for the contractor shall provide technical assistance for oversight of the potentially responsible party (prp) chevron u.s.a. inc. as they finalize an engineering evaluations/cost analyses (ee/ca) for the…. The award is classified under NAICS 541620 — ENVIRONMENTAL CONSULTING SERVICES and issued as a time and materials contract. Competition extent: full and open competition. Performance is located in CHURCH ROCK, NM. The contract is scheduled through Aug 16, 2027 — approximately 15 months remaining. This award is one of several similar procurements from Environmental Protection Agency under NAICS 541620 — related awards are listed below.