TETRA TECH, INC. - THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) HOMESTAKE MINING COMPANY (HOMESTAKE) AS THEY PERFORM AN ENGINEERING EVALUATIONS/COST ANALYSIS (EE/CA) FOR THE MAC & BLACK JACK MINES IN THE

On Dec 8, 2025, Environmental Protection Agency obligated $100,000 to TETRA TECH, INC. for the contractor shall provide technical assistance for oversight of the potentially responsible party (prp) homestake mining company (homestake) as they perform an engineering evaluations/cost analysis…. 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 GALLUP, NM. The contract is scheduled through Aug 9, 2027 — approximately 14 months remaining. This award is one of several similar procurements from Environmental Protection Agency under NAICS 541620 — related awards are listed below.