1. nature of workgroup(s) involvedconsequences if not done consolidate beam dumpEN/STIcontinue running with obsolete dump, and without spare upgrade beam stopper BTP.STP10 EN/STIOK for operation with Linac2; postpone to LS2 Fluka studiesfellow3 months engineer1 month Conceptual designfellow3 months engineer2 months Design new dumpdesign office5 months technician3 months engineer2 months Manufacture new dumptechnician6 months (+ 2 months FSU) engineer1 month Install new dumptechnician2 weeks Fluka studiesfellow3 months engineer1 month Check actual design for 2 GeVfellow2 months engineer2 months Design BTP beam stopperdesign office5 months technician3 months engineer2 months Manufacture BTP beam stoppertechnician5 months (+ 6 weeks FSU) engineer1 month Install BTP beam stoppertechnician2 weeks manpower estimate dumpmanpower estimate beam stopper LIU-PSB Work - LS1

2. nature of workgroup(s) involvedconsequences if not done consolidate transport & handling equipment EN/HEwill not to be ready in time for heavy work during LS2 Lift AS 045FTE0.2 Transfer tables CH 066 and CH 067 FTE 0.2 Cranes PR 134, 135, 136 and 137 - 10t FTE 0.2 Crane PR 138 - 20t FTE 0.1 Transport and handling studies FTE 0.1 Transport and handling services FTE 0.2 manpower estimate transport & handling equipment LIU-PSB Work - LS1

3. LIU-PSB Work – LS2 nature of workgroup(s) involved manpower required all other work according to WBS according to WBS in case the work presently planned for LS1 will not be done in LS1, it will add on to the workload for LS2. Most important is the handling equipment, which must be ready in time for the other activities in LS2, otherwise delays are to be expected important notice: this assumes Linac4 connection in LS2 (present official planning) in case Linac4 connection in LS1 should be decided, a lot of items to be added to the list for LS1