CENTRAL PLATEAU CLEANUP COMPANY, LLC

HANFORD CENTRAL PLATEAU CLEANUP CONTRACT - TASK ORDER 7 - END STATES & BASE OPS. THIS TASK ORDER IS ISSUED AS AN UNDEFINITIZED TASK ORDER PURSUANT TO CLAUSE H.49, TASK ORDERING PROCEDURE. NOTICE-TO-PROCEED AND A NOT-TO-EXCEED VALUE OF $98,000,000

USAspending award recordLast modified Oct 19, 2026 · verified Nov 10, 2026

01AgencyDepartment of EnergyDepartment of Energy
02Award89303924FEM400054DELIVERY ORDER
03RecipientCENTRAL PLATEAU CLEANUP COMPANY, LLCSC
04ParentAMENTUM HOLDINGS INC.SAM-reported parent
05SecurityAMTMExact SEC legal-name match

Obligated$1.12BCommitted by the government. Not cash paid.

Outlays$845.82MCash paid out so far.

Ceiling$1.62BBase plus all options. A maximum, not a payment.

Period of performanceOct 1, 2024 – Sep 30, 2027

Obligation timeline

Actions and modifications

Sep 29, 2026HANFORD CENTRAL PLATEAU CLEANUP CONTRACT - TASK ORDER 7 - END STATES & BASE OPS. THE PURPOSE OF THIS MODIFICATION IS TO ADD $96,739,619.56 IN INCREMENTAL FUNDING (REQ 26EM001937) FOR UNINTERRUPTED SUPPORT FOR CENTRAL PLATEAU THROUGH DECEMBER 7$96.74MMod P00059 · cumulative $96.74M

Record

Award ID: 89303924FEM400054
Category: contract
Industry (NAICS): 562910 · Remediation Services
Product/service (PSC): Z1PD
Place of performance: WA
Signed: Sep 16, 2024
Ingested: Nov 4, 2026
Company match: Exact SEC legal-name match · confidence 0.8