Contract DESC0004645
Ucor Llc · Department Of Energy · April 29, 2011
Ucor Llc was awarded a federal contract by Department Of Energy on April 29, 2011 for $3.90 billion of work in remediation services. Performance is in Oak Ridge, TN. It was awarded under full and open competition. The contract has been modified 432 times since the base award It uses cost-plus contract pricing. The most recent modification was on December 29, 2025.
Contract details
- PIID
- DESC0004645
- Award type
- Definitive Contract
- Pricing
- Cost Plus Award Fee
- Set-aside
- No Set Aside Used.
- Competition
- Full And Open Competition
- NAICS
- 562910 · Remediation Services
- Product / service
- Other Environmental Services
- Place of performance
- Oak Ridge, TN
- First action
- April 29, 2011
- Latest action
- December 29, 2025
Description
THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $6,892,715.20
Modification timeline
-
December 29, 2025Mod 484$6.89M
-
August 25, 2023Mod 483DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$-1.07M
-
January 23, 2023Mod 423DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$0
-
January 23, 2023Mod 482DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$0
-
August 18, 2022Mod 481DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$0
-
June 30, 2022Mod 480DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$-41.59M
-
June 2, 2022Mod 479DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$0
-
May 18, 2022Mod 478DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$1.83M
-
May 17, 2022Mod 473DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$0
-
April 28, 2022Mod 476DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.$35.08M
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Top contractors in NAICS 562910
Lifetime obligated dollars across all federal contracts in this NAICS code.
| # | Contractor | Contracts | Obligated |
|---|---|---|---|
| 1 | Ch2m Hill Plateau Remediation Company | 1 | $7.07B |
| 2 | Fluor-Bwxt Portsmouth Llc | 1 | $4.47B |
| 3 | Ch2m Wg Idaho Llc | 1 | $4.29B |
| 4 | Savannah River Mission Completion, Llc | 11 | $3.91B |
| 5 | Ucor Llc | 1 | $3.90B |
| 6 | Central Plateau Cleanup Company, Llc | 9 | $3.09B |
| 7 | Washington Closure Hanford Llc | 1 | $2.83B |
| 8 | United Cleanup Oak Ridge Llc | 2 | $2.57B |
| 9 | Idaho Environmental Coalition Llc | 2 | $2.42B |
| 10 | Fluor Idaho Llc | 1 | $2.30B |
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Frequently asked questions
What is contract DESC0004645?
Contract DESC0004645 is a federal contract awarded to Ucor Llc by Department Of Energy on April 29, 2011 for $3.90 billion of work classified under REMEDIATION SERVICES. It has been modified 432 times since the base award.
Who won contract DESC0004645?
Ucor Llc won contract DESC0004645 from Department Of Energy.
How much is contract DESC0004645 worth?
Contract DESC0004645 has obligated $3.90 billion to date, with a total potential value of $4.18 billion if all options are exercised.