Putting the award page together from the records…
Putting the award page together from the records…
THE SCOPE OF THIS CONTRACT FOCUSES ON THE CONTINUED DEACTIVATION OF THE PADUCAH GASEOUS DIFFUSION PLANT FACILITIES, PREPARING THE FACILITIES FOR FUTURE DEMOLITION, AND PERFORMING ENVIRONMENTAL REMEDIATION ACTIVITIES REQUIRED BY THE FEDERAL FACILITY AGREEMENT AND SITE MANAGEMENT PLAN. IGF::OT::IGF
Up for re-bid: ends 2027-06-19. Recompete brief →
SpendQuery holds FY2023 on; earlier years are on USAspending.gov.
No subawards reported for this award. Primes report subawards of $30,000 or more; many awards have none.
12 orders worth $52.33M (current value). The largest:
83 actions since 2022-10-06. Each is a modification or amendment with the money it added or took back.
| Date | Modification | Kind | Amount | What the agency wrote |
|---|---|---|---|---|
| 2026-09-22 | 209 | Supplemental agreement (work within scope) | $7.77M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. MODIFICATION IS TO UPDATE CONTRACT SECTIONS AND ADD INCREMENTAL FUNDING |
| 2026-08-24 | 208 | Change order definitized | $38.50M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. MODIFICATION IS TO DEFINITIZE CHANGE ORDER 0199 FOR ADMINISTRATION BUILDING AND ADD FUNDING |
| 2026-08-20 | 207 | Supplemental agreement (work within scope) | $30.91M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. MODIFICATION IS TO ADD INCREMENTAL FUNDING AND UPDATE CONTRACT SECTIONS |
| 2026-08-18 | 206 | Administrative change | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. MODIFICATION IS TO UPDATE CONTRACT SECTION |
| 2026-06-30 | 205 | Funding only | $21.93M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. ADD INCREMENTAL FUNDING |
| 2026-05-21 | 204 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. EXECUTIVE ORDER 14398 |
| 2026-05-13 | 203 | Funding only | $23.47M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING TO THE CONTRACT. |
| 2026-04-30 | 202 | Funding only | $14.61M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING TO THE CONTRACT. |
| 2026-03-31 | 201 | Funding only | $6.80M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING TO THE CONTRACT. |
| 2026-03-13 | 200 | Funding only | $10.50M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING TO THE CONTRACT. |
| 2026-02-24 | 199 | Change order | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ISSUE CHANGE ORDER FOR THE ADMINISTRATION BUILDING DESIGN. |
| 2026-01-26 | 198 | Supplemental agreement (work within scope) | $24.56M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING AND UPDATE CONTRACT SECTIONS |
| 2025-12-31 | 197 | Funding only | $5.08M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING. |
| 2025-11-26 | 196 | Funding only | $30.00M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING. |
| 2025-11-06 | 195 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO REALIGN SCOPE. |
| 2025-11-03 | 194 | Funding only | $1.00M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS ADD FUNDING. |
| 2025-10-20 | 193 | Administrative change | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS ADD THE PERFORMANCE EVALUATION MANAGEMENT PLAN FOR CONTRACT PERIOD OCTOBER 1, 2025 THROUGH JUNE 19,2027. |
| 2025-09-29 | 192 | Funding only | $6.90M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS ADD INCREMENTAL FUNDING. |
| 2025-09-24 | 191 | Funding only | $11.43M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS ADD INCREMENTAL FUNDING. |
| 2025-08-29 | 190 | Supplemental agreement (work within scope) | $15.81M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS ADD OCCUPATIONAL MEDICAL PROGRAM AND FUNDING |
| 2025-08-04 | 189 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS ADD DECISION 2029- ON-SITE WASTE DISPOSAL FACILITY |
| 2025-07-31 | 188 | Supplemental agreement (work within scope) | $24.50M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS ADD INCREMENTAL FUNDING AND BUILDING 337 FIELD SUPPORT, PROGRAM MANAGEMENT AND PADUCAH AREA COMMUNITY REUSE. |
| 2025-07-01 | 187 | Supplemental agreement (work within scope) | $10.47M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO UPDATE CONTRACT SECTIONS AND ADD INCREMENTAL FUNDING. |
| 2025-06-30 | 186 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO UPDATE CONTRACT SECTIONS. |
| 2025-06-18 | 185 | Supplemental agreement (work within scope) | $2.20M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD SURVEILLANCE AND MAINTENANCE TO OPTION PERIOD 2 AND ADD INCREMENTAL FUNDING. |
| 2025-06-10 | 184 | Supplemental agreement (work within scope) | $10.92M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. |
| 2025-05-29 | 183 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. |
| 2025-05-14 | 182 | Supplemental agreement (work within scope) | $13.78M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO UPDATE INCREMENTAL FUNDING AND ADD CHARACTERIZATION, CONVERTER AND COMPRESSOR DISCONNECTS. |
| 2025-04-08 | 181 | Supplemental agreement (work within scope) | $14.30M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO UPDATE INCREMENTAL FUNDING AND ADD INFRASTRUCTURE AND MOBILIZATION, AND PANEL REMOVAL. |
| 2025-03-20 | 180 | Supplemental agreement (work within scope) | -$100.0K | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO UPDATE INCREMENTAL FUNDING AND ADD LAND TRANSFER |
| 2025-03-13 | 179 | Funding only | $9.45M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING |
| 2025-02-19 | 178 | Supplemental agreement (work within scope) | $21.61M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING AND UPDATE CONTRACT SECTIONS. |
| 2025-01-27 | 177 | Administrative change | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO UPDATE CONTRACT SECTIONS. |
| 2025-01-07 | 176 | Funding only | $19.47M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $19,473,000.00. |
| 2024-12-19 | 175 | Funding only | $5.94M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $5,941,000.00. |
| 2024-11-26 | 174 | Funding only | $23.70M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $23,705,000. |
| 2024-11-19 | 173 | Supplemental agreement (work within scope) | $6.0K | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD FUNDING AND UPDATE CONTRACT SECTION C. |
| 2024-11-05 | 172 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO APPROVE BUILDING CHARACTERIZATION. |
| 2024-10-10 | 171 | Funding only | $14.87M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING. |
| 2024-09-27 | 170 | Funding only | $19.48M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING. |
| 2024-09-18 | 169 | Funding only | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO REDISTRIBUTE FUNDING WITHIN THE CONTRACT. |
| 2024-09-17 | 168 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO DEFINITIZE THE REQUEST FOR PROPOSAL FOR ON-SITE WASTE DISPOSAL FACILITY PLANNING AND SUPPORT PHASE TWO. |
| 2024-08-14 | 167 | Funding only | $24.19M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING. |
| 2024-07-15 | 166 | Supplemental agreement (work within scope) | $14.50M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD ADDITIONAL BUDGET FOR TECHNICAL TRAPS AND ADD INCREMENTAL FUNDING. |
| 2024-07-08 | 165 | Option exercised | $1.88M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE THE SECOND OPTION PERIOD ON THE CONTRACT EXTENDING THE PERIOD OF PERFORMANCE FROM JUNE 2025 TO JUNE 2027 AND ADD INCREMENTAL FUNDING. |
| 2024-06-25 | 164 | Funding only | $7.78M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING. |
| 2024-06-07 | 163 | Funding only | $15.20M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING. |
| 2024-05-13 | 162 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD ADDITIONAL BUDGET FOR MAINTENANCE COST |
| 2024-05-02 | 161 | Supplemental agreement (work within scope) | $18.08M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING AND UPDATE CONTRACT SECTIONS |
| 2024-04-11 | 160 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO DEFINITIZE THE REQUEST FOR PROPOSAL FOR C-333 DEACTIVATION AND SUPPORT |
| 2024-03-29 | 159 | Funding only | $17.88M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING. |
| 2024-03-06 | 158 | Supplemental agreement (work within scope) | $1.38M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO DEFINITIZE THE REQUEST FOR PROPOSAL FOR ON-SITE WASTE DISPOSAL FACILITY PLANNING AND SUPPORT, ALONG WITH ADDING INCREMENTAL FUNDING. |
| 2024-02-27 | 157 | Supplemental agreement (work within scope) | $22.42M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO DEFINITIZE THE REQUEST FOR PROPOSAL FOR LAND TRANSFER AND ADD INCREMENTAL FUNDING. |
| 2024-01-29 | 156 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO DEFINITIZE THE REQUEST FOR PROPOSAL FOR C-333 NON-DESTRUCTIVE ASSAY ACTIVITIES AND PROJECT MANAGEMENT TO SUPPORT STABILIZATION AND DEACTIVATION ACT |
| 2024-01-16 | 155 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO DEFINITIZE THE REQUEST FOR EQUITABLE ADJUSTMENT FOR COVID COST INCURRED DURING FISCAL YEAR 2023 |
| 2023-12-21 | 154 | Administrative change | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. |
| 2023-12-20 | 153 | Funding only | $32.14M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. |
| 2023-12-14 | 152 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO UPDATE THE B2-2 TABLE OF CONTRACT COST AND FEE, UPDATE SECTION C TABLE C.2.EM.PA.0040.A005.10.DR.01-2, C-400 COMPLEX OPERABLE UNIT REMEDIATION MILEST |
| 2023-11-27 | 151 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO DEFINITIZE THE REQUEST FOR PROPOSAL FOR THE SOLID WASTE MANAGEMENT UNIT 211-A OPERATIONS AND MAINTENANCE PLAN DEVELOPMENT. |
| 2023-11-20 | 150 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION TO ADD ADDITIONAL BUDGET FOR PAD RESURFACING ABOVE THAT ORIGINALLY PLANNED FOR IN THE CONTRACT BASELINE. |
| 2023-11-17 | 149 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION TO ADD ADDITIONAL BUDGET FOR FOOTPRINT REDUCTION DUE TO DEMOLITION OF ADDITIONAL STRUCTURES OVER AND ABOVE THOSE ORIGINALLY PLANNED FOR IN THE CONTRACT BAS |
| 2023-11-08 | 148 | Funding only | $25.31M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $25,311,000, INCREASING OBLIGATED DOLLARS FROM $1,054,005,086.31 TO $1,079,316,086.31. |
| 2023-11-07 | 147 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF THIS MODIFICATION IS TO DEFINITIZE THE OPERATION OF THE MATERIAL SIZING AREA REQUEST FOR PROPOSAL AND ADD PREVIOUSLY AGREED TO CHANGES TO THE DELIVERABLE SECTION. |
| 2023-10-25 | 146 | Administrative change | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION. THE PURPOSE OF MODIFICATION 0146 IS TO UPDATE SECTION J OF THE CONTRACT. SPECIFICALLY, THIS MODIFICATION UPDATES ATTACHMENT J-12A AND ATTACHMENT J-18. |
| 2023-09-29 | 145 | Funding only | $3.65M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION THE PURPOSE OF THIS MODIFICATION IS TO PROVIDE INCREMENTAL FUNDING IN THE AMOUNT OF $3,654,276.70 TO THE CONTRACT. THIS WILL INCREASE TOTAL OBLIGATIONS FROM $1,050,350,809.61 TO $1,054,005 |
| 2023-09-19 | 144 | Funding only | $30.50M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION THE PURPOSE OF THIS MODIFICATION IS TO PROVIDE INCREMENTAL FUNDING IN THE AMOUNT OF $30,498,638 TO THE CONTRACT. THIS WILL INCREASE TOTAL OBLIGATIONS FROM $1,019,852,171.61 TO $1,050,350,8 |
| 2023-09-13 | 143 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION THE PURPOSE OF MODIFICATION 0143 IS TO DEFINITIZE THE REQUEST FOR PROPOSAL TO INSTALL THE MATERIAL SIZING AREA. THIS MODIFICATION WILL ALSO MOVE MANAGEMENT RESERVE AT THE CONTRACTOR'S |
| 2023-09-07 | 142 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION THE PURPOSE OF MODIFICATION 0142 IS TO DEFINITIZE THE REQUEST FOR PROPOSAL TO UPDATE SECTION C TO ACCURATELY REFLECT THE OPTION 1 REPLAN. |
| 2023-08-22 | 141 | Administrative change | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION 0141'S PURPOSE IS A BILATERAL ADMINISTRATIVE UPDATE TO SECTIONS C, J, AND I OF THE CONTRACT. |
| 2023-06-28 | 140 | Supplemental agreement (work within scope) | $34.01M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION TO IS TO UPDATE SECTIONS B, C, AND J AND TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $34,010,000. |
| 2023-05-31 | 139 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION TO IS TO DEFINITIZE THE REQUEST FOR EQUITABLE ADJUSTMENT FOR COVID COST FOR FISCAL YEAR 22. |
| 2023-04-27 | 138 | Funding only | $33.11M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $33,113,361.92. |
| 2023-04-04 | 137 | Additional work (new agreement) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION TO UPDATE ATTACHMENT J-4 LIST A AND LIST B. |
| 2023-03-20 | 136 | Administrative change | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION TO MOVE FUNDING FROM CONTRACT LINE ITEM 00101 TO 00201. |
| 2023-03-15 | 135 | Funding only | $20.85M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $20,850,000, INCREASING THE TOTAL OBLIGATIONS FROM $931,878,809.69 TO $952,728,809.69. |
| 2023-03-01 | 134 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION IS TO UPDATE MULTIPLE SECTIONS OF THE CONTRACT. |
| 2023-02-16 | 133 | Funding only | $28.20M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $28,200,000, INCREASING TOTAL OBLIGATIONS FROM $903,678,809.69 TO $931,878,809.69. |
| 2023-01-06 | 132 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION IS TO DEFINITIZE THE OVERRUN FOR UTILITIES ASSOCIATED WITH STEAM, CHILLED WATER, COMPRESSED AIR AND WASTE HEAT SYSTEMS. |
| 2022-11-14 | 131 | Funding only | $750.0K | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION IS TO PROVIDE INCREMENTAL FUNDING IN THE AMOUNT OF $750,000, INCREASING FUNDING FROM $902,928,809.69 TO $903,678,809.69. |
| 2022-10-28 | 130 | Funding only | $36.09M | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION IS TO PROVIDE INCREMENTAL FUNDING IN THE AMOUNT OF $36,090,000, INCREASING FUNDING FROM $866,838,809.69 TO $902,928,809.69. |
| 2022-10-19 | 129 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION IS TO PROVIDE ENVIRONMENTAL MONITORING AND REPORTING FOR PER- AND POLYFLUOROALKYL SUBSTANCES SCREENING ASSESSMENTS AND COLLECT SAMPLES AS RECOMMENDED IN THE VAPOR INTRUSION STU |
| 2022-10-14 | 128 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION TO REALIGN MANAGEMENT RESERVE BETWEEN CONTRACT LINE ITEMS AT THE REQUEST OF THE CONTRACTOR. NO CHANGE IS BEING MADE TO THE CONTRACT VALUE. |
| 2022-10-06 | 127 | Supplemental agreement (work within scope) | $0 | PADUCAH GASEOUS DIFFUSION PLANT DEACTIVATION AND REMEDIATION MODIFICATION TO DEFINITIZE THE REQUEST FOR PROPOSAL FOR THE OVERRUN IN SURVEILLANCE AND MAINTENANCE. |
Source: USAspending.gov prime award transactions and FSRS subaward reports, as loaded by SpendQuery (data as of 2026-10-21). Amounts are obligations (money committed), not outlays. The official record on USAspending.gov ↗