Sample Task Order Amendment 0003.pdf

SAMPLE TASK ORDER

TO BE USED FOR COST COMPARISON ONLY

DIVE OPERATION SPECIFICATIONS forௗ

Turbine Intake TransducerௗInspection

For Walla Walla: Lower Monumental Dam (21-23 September 2026)ௗ

For Portland:ௗJohn Day Dam Dive (28-30 Septemberௗ2026)

Scope of work:

The dive team will conduct underwater inspection of LowerௗMonumental and John DayௗDamௗTurbine Intake Transducers (three days at each site). Noௗinstallation or construction tasks will be performed. Assume all work will take place Monday-Wednesday with one dive evolution per day.

The dives will consist of the following:ௗ

Surface supplied air with one deep dive toௗ146 ftௗand one shallow dive toௗ40 ft using a five-personௗdiving team consisting of aௗnon-divingௗDive Supervisor, two workingௗDivers, oneௗStandby Diver, and oneௗTender.ௗ

Add an additional Qualified Diver to theௗ5-personௗdive team for a basicௗ8-hourௗworkday.ௗ

Note: For price comparison use Schedule line items identified below.

Schedule

Mobilization / Demobilization:ௗContractor will mobilize and demobilize all personnel, dive equipment, chamber, and support gearௗtoௗLower Monumental Damௗ(21-23 Sept 2026)ௗandௗJohn Day Damௗ(28-30 Septௗ2026). Workboat transport, launch, and recovery are included. Mobilization and demobilization time is excluded from the dive day.ௗEach task order will have only one mob/demobilization charge whether it runs one or several days.ௗ

Workboat requirements:ௗVessel must accommodate the dive crew andௗ2ௗUSACE personnel, carry all equipment, provide a stable SSA working platform, have suƯicient freeboard, andௗpossessௗadequate horsepowerௗforௗriverௗnavigation.ௗௗ

For price comparison use the following line items:

0004AD for Walla Walla, Lower Monumental

0028AD for Portland, John Day

Day 0 Mobilization

Mobilize workboats, Conduct predive brief, equipment checks, communications test, and emergency drills.ௗ Confirm USACE site access and lockout/tagout asௗrequired.ௗ

For price comparison use the following line items:

0003AD for Walla Walla, Lower Monumental

0027AF for Portland, John Day

Day 1 Deep Inspectionௗ

Dive 1:ௗ146 ft SSA. Perform methodical inspection of transducer mounting and surrounding structure, clean surfaces as needed for inspection, captureௗhigh-resolutionௗvideo and stills, and take measurements of any anomalies.ௗ Topsides: review video andௗdetermineௗif supplemental deep documentation isௗrequired.ௗ Assume work can be done in one dive evolution.

For price comparison use the following line items:

0001AA, 0001AB, and 0001AC, and 0002AA for Walla Walla, Lower Monumental

0025AA, 0025AB, and 0025AC, and 0026AA for Portland, John Day

Day 2 Supplemental Deep Inspectionௗ

Dive 2:ௗ146 ft SSA. Reinspect areas of concern, perform detailed probing or measurement, and captureௗadditionalௗvideo and stills.ௗ Topsides: prepare for shallow transition inspection and cable run verification.ௗ Assume work can be done in one dive evolution.

For price comparison use the following line items:

0001AA, 0001AB, and 0001AC, and 0002AA for Walla Walla, Lower Monumental

0025AA, 0025AB, and 0025AC, and 0026AA for Portland, John Day

Assume Dive Supervisor had to work 2 hours of overtime using the following line items:

0007 for Walla Walla, Lower Monumental 0031 for Portland, John Day

Day 3 Shallow Inspection and Final Verificationௗ

Dive 3:ௗ40 ft SSA. Inspect cable routing, clamps, supports, and shallow transition points, perform final video sweep, and verify no snag or entrapment hazards remain. Topsides:

finalizeௗinspection report, compile video and stills, and prepare for demobilization.ௗAssume work can be done in one dive evolution.

For price comparison use the following line items:

0001AA, 0002AA for Walla Walla, Lower Monumental

0025AA, 0026AA for Portland, John Day

Day 4 Demobilizationௗ

Demobilize chamber, equipment, and workboat. Completeௗpost-operationௗinspections and reports.ௗ