SIGMA SCIENCE INC

THE PURPOSE OF THIS MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS OF ($799,000.75) FOR CLOSEOUT ON TASK ORDER 89243222FNE400084, REDUCING TOTAL OBLIGATIONS FROM $1,3000,000.00 TO $500,999.25. FINAL RELEASE WAS SIGNED ON 9/24/2025 BY LEROY RUSHING, CONT

THE PURPOSE OF THIS MODIFICATION IS TO: 1. PROVIDE INCREMENTAL FUNDING TO CLIN 00001 IN THE AMOUNT OF $80,000.00 CHANGING THE TOTAL OBLIGATION FROM $234,959.84 TO $314,959.84 ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.

Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO) TECHNICAL & ADMINISTRATIVE SUPPORT SERVICES - NA-93

THE PURPOSE OF THIS MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS OF ($1,440.00) FOR CLOSEOUT ON TASK ORDER 89243225FNE400184, REDUCING TOTAL OBLIGATIONS FROM $25,380.00 TO $23,940.00. FINAL RELEASE WAS SIGNED BY LEROY RUSHING, CONTRACTS MANAGER FOR SI

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

THIS MODIFICATION EXERCISED OPTION YEAR 1 OF THE CONTRACT. FUNDING IN THE AMOUNT OF $324,644 IS OBLIGATED TO CLIN 0002 ON THE AWARD TO FULLY FUND OPTION YEAR 1 OF THE CONTRACT. THIS MODIFICATION: 1. EXERCISES OPTION YEAR 1 CLIN 002 FOR A 12 MO

THE PURPOSE OF THIS MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS OF ($141,031.50) FOR CLOSEOUT ON CONTRACT 89243224FNE400141, REDUCING TOTAL OBLIGATIONS FROM $169,980.00 TO $28,948.50.

TECHNICAL SUPPORT SERVICES

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO) TECHNICAL & ADMINISTRATIVE SUPPORT SERVICES - NA-93

THE PURPOSE OF THIS MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS OF ($43.05) FROM AWARD 89243224FNE400142 FOR CLOSEOUT, REDUCING THE TOTAL OBLIGATION FROM $194,486.00 TO $194,442.95. THE FINAL RELEASE WAS SIGNED BY DEBBIE LOCKE ON 6/3/2025.

Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO) TECHNICAL & ADMINISTRATIVE SUPPORT SERVICES - NA-93

Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO) TECHNICAL & ADMINISTRATIVE SUPPORT SERVICES - NA-93

NUCLEAR SAFETY SUBJECT MATTER EXPERT (SME) TECHNICAL SUPPORT TASK ORDER FOR THE CMRR FACILITY AT THE LOS ALAMOS NATIONAL LABORATORY (LANL) AND SUPPORTING THE LOS ALAMOS FIELD & PROJECT MANAGEMENT OFFICES (NA-LA - APM-1.5).

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

THIS PURPOSE OF THIS MODIFICATION IS TO: DE-OBLIGATE UNUSED FUNDS OF ($40,852.10) FOR CLOSEOUT OF TASK ORDER 89243223FNE400092 REDUCING THE OBLIGATED AMOUNT FROM $125,120.00 TO $84,267.90. THE FINAL RELEASE WAS SIGNED BY DEBBIE LOCKE 5/6/2025.

REVIEW OF SITE CHARACTERIZATIONS LESSONS LEARNED FROM THE YUCCA PROJECT

THE PURPOSE OF THIS MODIFICATION IS TO: DE-OBLIGATE UNUSED FUNDS OF ($10,017.06) FROM AWARD 89243222FNE400089 FOR CLOSEOUT, REDUCING THE TOTAL OBLIGATION FROM $25,000.00 TO $14,982.94. THE FINAL RELEASE WAS SIGNED BY DEBBIE LOCKE 05/06/2025.

THIS MODIFICATION P00001 CHANGES: 1. ADD INCREMENTAL FUNDING TO CONTRACT LINE ITEM 00001 BY $100,350.00 FROM $125,000.00 TO $225,350.00. 2. UPDATE THE POINT OF CONTACT SHEET TO REPLACE WAYNE HOHS AS THE VENDOR PROGRAM MANAGER WITH MONTY MIDDLEB

EXERCISE OPTION PERIOD 2 AND ADD INCREMENTAL FUNDING

THIS MODIFICATION P00001 CHANGES: 1. ADD INCREMENTAL FUNDING TO CONTRACT LINE ITEM 00001 BY $175,000.00 FROM $115,500.00 TO $290,500.00. 2. UPDATE THE POINT OF CONTACT SHEET TO REPLACE WAYNE HOHS AS THE VENDOR PROGRAM MANAGER WITH MONTY MIDDLEB

TECHNICAL SUPPORT SERVICES

OFFICE OF DEFENSE NUCLEAR NONPROLIFERATION RESEARCH AND DEVELOPMENT (NA-22) TECHNICAL AND ANALYTICAL SUPPORT SERVICES

INFRASTRUCTURE MANAGEMENT FACILITY SUPPORT SERVICES (IMFSS)

TECHNICAL SUPPORT SERVICES

TECHNICAL SUPPORT SERVICES

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO) TECHNICAL & ADMINISTRATIVE SUPPORT SERVICES - NA-APM-1.3

Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO) TECHNICAL & ADMINISTRATIVE SUPPORT SERVICES - NA-APM-1.3

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

BUSINESS SUPPORT SERVICES TO NA-MB-1.3

TASK ORDER 06 ENVIRONMENTAL COMPLIANCE SUPPORT

ONE ACQUISITION SOLUTION FOR INTEGRATED SERVICES PLUS (OASIS+) SMALL BUSINESS MULTIPLE AGENCY CONTRACT (MAC)

THIS MODIFICATION IS TO: 1. DEOBLIGATE $75,000 FROM CLIN 00002. THIS CHANGES CLIN 00002 OBLIGATIONS FROM $540,000 TO $465,000. THIS CHANGES TOTAL OBLIGATION AMOUNT FROM $1,056,293.81 TO $981,293.81. ALL OTHER TERMS AND CONDITIONS REMAIN THE SAM

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

TECHNICAL SUPPORT SERVICES

BUSINESS SUPPORT SERVICES TO NA-MB-1.3

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

TECHNICAL SUPPORT SERVICES

NUCLEAR INDUSTRY ADVISORY AND ASSISTANCE SERVICES(A&AS)SUPPORT UNDER GSA CONTRACT 47QRAA18D005Q - TASK ORDER 19 REPOSITORY LICENSING SPECIALIZED ADVISO

FIRE HAZARD ANALYSIS

NUCLEAR INDUSTRY ADVISORY AND ASSISTANCE SERVICES(A&AS)SUPPORT UNDER GSA CONTRACT 47QRAA18D005Q -- TASK ORDER 17 - NUCLEAR SAFETY SPECIALIST SUPPORTING NE-5

NUCLEAR INDUSTRY ADVISORY AND ASSISTANCE SERVICES(A&AS)SUPPORT UNDER GSA CONTRACT 47QRAA18D005Q - TASK ORDER 16 - AIR COMPLIANCE SUBJECT MATTER EXPERT

NUCLEAR INDUSTRY ADVISORY AND ASSISTANCE SERVICES (A&AS) SUPPORT UNDER GSA CONTRACT 47QRAA18D005Q - TASK ORDER 18 ENVIRONMENTAL SUPPORT SUBJECT MATTER EXPERT

TASK ORDER 12 - INTERIM STORAGE ADVISOR THIS MODIFICATION IS TO ADD FUNDING TO THE AWARD. THIS MODIFICATION: 1. ADD FUNDING IN THE AMOUNT $142,416 TO THE CLIN 0001. 2. THE TOTAL OBLIGATED FUNDING ON THIS AWARD AND CLIN 0001 IS INCREASED B

BUSINESS SUPPORT SERVICES TO NA-MB-1.3

Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO) TECHNICAL & ADMINISTRATIVE SUPPORT SERVICES - NA-APM-1.3

TECHNICAL SUPPORT SERVICES FOR NUCLEAR STOCKPILE SUSTAINMENT MANAGEMENT AND SUPPORT SYSTEMS FOR THE OFFICE OF NUCLEAR WEAPONS STOCKPILE SUSTAINMENT (NA-122) AND STOCKPILE SERVICES DIVISION (NA-122.1)

TECHNICAL SUPPORT SERVICES