HDR ENGINEERING, INC.

PROJECT TITLE: AMERICAN RIVER COMMON FEATURES, NATOMAS BASIN REACH I, CONTRACT 2, DESIGN AND ENGINEERING SERVICES DURING CONSTRUCTION, SACRAMENTO COUNTY, CA. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE OPTIONS 6-9 FOR ADDITIONAL EDC SERVICES.

PROJECT TITLE AND LOCATION: TECHNICAL SUPPORT FOR PALEOFLOOD ANALYSIS OF THE FEATHER RIVER, OROVILLE DAM, CA. THE PURPOSE OF THIS MODIFICATION IS TO ENACT A CREDIT FOR WORK NOT PERFORMED/NEEDED.

PROJECT TITLE AND LOCATION: FY26 MILCON, MC-130J HANGAR/AIRCRAFT MAINTENANCE UNIT (AMU), DAVIS-MONTHAN AFB, AZ. (100% DESIGN D-B-B)

PROJECT TITLE AND LOCATION: OROVILLE DAM, OROVILLE, CA AND NEW BULLARDS BAR DAM, DOBBINS, CA, WATER CONTROL MANUAL (WCM) UPDATES PLANNING. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE OPTION TASKS FOR TECHNICAL AND RESERVOIR MODELING SUPPORT.

EQUITABLE ADJUSTMENT OF RATE INCREASE

TASK 2 RESERVOIR SIMULATION ANALYSIS

IWR - NO COST TIME EXTENSION, EXERCISE OPTIONAL TASKS 5 AND 6 - HEC-RIVER ANALYSIS SYSTEM SUPPORT. SOFTWARE TESTING OF HEC-RAS NEW BETA FEATURES AND EXISTING FEATURES. SOFTWARE DOCUMENTATION.

PROJECT TITLE AND LOCATION: AMERICAN RIVER COMMON FEATURES, NATOMAS BASIN REACH I, CONTRACT 2, DESIGN AND ENGINEERING SERVICES DURING CONSTRUCTION, SACRAMENTO COUNTY, CALIFORNIA. ADD CLIN

PROJECT TITLE AND LOCATION: AMERICAN RIVER COMMON FEATURES, NATOMAS BASIN REACH D, HIGHWAY 99, DESIGN, SUTTER COUNTY, CALIFORNIA. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE OPTION TASKS FOR ADDITIONAL ENGINEERING DURING CONSTRUCTION SERVICES.

PROJECT TITLE AND LOCATION: OROVILLE DAM, OROVILLE, CA AND NEW BULLARDS BAR DAM, DOBBINS, CA WATER CONTROL MANUAL (WCM) UPDATES PLANNING. THE PURPOSE OF THIS MOD IS TO EXERCISE OPTION TASKS FOR ADD'L SUPPORT AND REVISIONS FOR THE WCM UPDATES.

PROJECT TITLE AND LOCATION: AMERICAN RIVER COMMON FEATURES, NATOMAS BASIN REACH D, HIGHWAY 99, DESIGN, SUTTER COUNTY, CA. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE AN OPTION FOR ENGINEERING SUPPORT SERVICES DURING CONSTRUCTION.

THE PURPOSE OF THIS MODIFICATION IS TO INCREASE ADDITIONAL WORK. THE PERIOD OF PERFORMANCE IS EXTENDED FROM 30 NOVEMBER 2023 TO 30 NOVEMBER 2026.

DEOBLIGATION OF UNUSED FUNDS

PROJECT TITLE AND LOCATION: D5 MISSILE MOTOR RECEIPT/STORAGE FACILITIES, UTAH TEST AND TRAINING RANGE. THE PURPOSE OF THIS MOD IS TO EXERCISE AN OPTION FOR CONSTRUCTION PHASE SERVICES.

PROJECT TITLE AND LOCATION: AMERICAN RIVER COMMON FEATURES, NATOMAS BASIN REACH D, HIGHWAY 99, DESIGN, SUTTER COUNTY, CALIFORNIA. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE AN OPTION TASK FOR ADVERTISING PHASE SERVICES.

PROJECT TITLE AND LOCATION: OROVILLE DAM, OROVILLE, CA AND NEW BULLARDS BAR DAM, DOBBINS, CA, WATER CONTROL MANUAL (WCM) UPDATES PLANNING. THE PURPOSE OF THIS MOD IS TO ADD TASKS FOR ADD'L MEETINGS AND ADD'L DATA MGMT PLAN SUPPORT.

EXERCISE THE OPTION FOR CLIN 0005 FOR TASK 6 TECHNICAL AND RESERVOIR.

PROJECT TITLE AND LOCATION: CONSTRUCTION PHASE SERVICES FOR SUTTER BASIN FRMP, CYPRESS AVE TO TUDOR ROAD, SUTTER COUNTY. THE PURPOSE OF THIS MOD IS TO ADD TASK 8 FOR ADDITIONAL CONSTRUCTION PHASE SERVICES.

PROJECT TITLE AND LOCATION: OROVILLE DAM, OROVILLE, CA AND NEW BULLARDS BAR DAM, DOBBINS, CA, WATER CONTROL MANUAL (WCM) UPDATES PLANNING. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE 11 OPTIONAL TASKS.

PROJECT TITLE AND LOCATION: OROVILLE DAM, OROVILLE, CA AND NEW BULLARDS BAR DAM, DOBBINS, CA, WATER CONTROL MANUAL (WCM) UPDATES PLANNING. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE AN OPTION TASK FOR BASELINE DEVELOPMENT.

PROJECT TITLE AND LOCATION: AMERICAN RIVER COMMON FEATURES, NATOMAS BASIN REACH I, CONTRACT 2, DESIGN AND ENGINEERING SERVICES DURING CONSTRUCTION, SACRAMENTO COUNTY, CA. THE PURPOSE OF THIS MOD IS TO EXERCISE OPTION TASKS 1-5 FOR AS-BUILTS AND EDC.

ADD TASK 2.3.1 SIMULATION/ANALYSIS OF PMF

PROJECT TITLE AND LOCATION: AMERICAN RIVER COMMON FEATURES, NATOMAS BASIN REACH D, HIGHWAY 99, DESIGN, SUTTER COUNTY, CALIFORNIA. THE PURPOSE OF THIS MOD IS TO ADD CLINS FOR ADDITIONAL TASKS.

OPTIONAL TASK 3

MAINTENANCE OF USACE HYDROLOGIC ENGINEER CENTER - ECOSYSTEM FUNCTIONS MODULE

TERMINATION FOR CONVENIENCE.

PROJECT TITLE AND LOCATION: FOLSOM DAM SURCHARGE OPERATIONS UPDATE, FOLSOM, CA (2022).

PROFESSIONAL SERVICES FOR HYDROLOGIC ENGINEERING CENTER RIVER ANALYSIS SYSTEM (HEC-RAS) SUPPORT

PROJECT TITLE AND LOCATION: AMERICAN RIVER COMMON FEATURES, NATOMAS BASIN REACH D, HIGHWAY 99, DESIGN, SUTTER COUNTY, CALIFORNIA. THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE OPTION TASKS FOR SURVEYING AND MEETINGS.

TASK 4

PRICE ADJUSTMENT FOR CLINS 0001-0003.