If you are interested in doing business with H2C we encourage you to register your company & update your information periodically. The more complete and current your company's information is in our database, the more visible your company is to H2C and their ongoing projects. CPCCo, HMIS & H2C all share a vendor database. If you have done business with one of the those prime contractors then you have already registered in the vendor database with H2C.

Register and maintain your company profile at https://www5.hanford.gov/vendreg/.

Expression of Interest - Fabrication of a Pretreated Waste Storage Tank (PWST)

Hanford Tank Waste Operations & Closure LLC (H2C), a prime contractor to the U.S. Department of Energy (DOE), Hanford Field Office (HFO) at the Hanford Site is conducting the final design for the 200 West Area Tank Farms Risk Management (WARM) project. This project will address the need for long-term cesium removal capability in support of the mission to remove tank waste supernate from the Double-Shell Tank system to provide space for Single-Shell Tank waste retrievals.

This Expression of Interest (EOI) is a means of conducting market research to identify parties having an interest in and the resources to perform fabrication services for a hazardous/dangerous waste storage tank for the WARM Project in support of the Integrated Tank Disposition Contractor’s (ITDC) mission. The WARM project is a capital asset project subject to the Critical Decision process of DOE O 413.3B.

EOI - PWST FAB 2026

EOI PWST Attachment 1 - RPP-SPEC-67201 A - MECH PWST Vessel Spec

EOI PWST Attachment 2 - H-14-113516-1to4 B MECH PWST VESSEL

EOI PWST Attachment 3 - H-14-113517-1to3 B MECH PWST VESSEL RISER ASSY

EOI PWST Attachment 4 - PWST EOI QAR 1-14-26

EOI PWST Attachment 5 - EXHIBIT 1 Past Performance

Technical Questions Due: Thursday, February 12, 2026, by 4:00 P.M.

Expression of Interest Letters Due: Monday, March 9, 2026, by 4:00 P.M

Karen Fuentes
Procurement Specialist
(509) 372-3909
karen_l_fuentes@rl.gov