1. 305 3720 306W 306E 327 308 309 324 331 337 Employer History files only Former worker questionnaire only Both Double positive worker in job Person-Years 3709A 304 303J 3717B 320 328 314 3706 3790 338 318 3745B 336 335 340 3745 3702 321 384 3730 3714 305B 3701D 3718 3770 3767 3708 3760 3746 333 313 326 Hanford 300 Area Beryllium: Job Exposure History, n=12,598 Employer History Files and Former Worker Questionnaires Combined, 11/2002 3705 3704 3707A 3707C 303F 303B303A 3712 3707D 3765 3763 3731A3731 334 305A 311 303C 303G 303E 303K 350 331A 331B *(5) 3769 *(#) *(1) *(3) *(4) *(2) *(1) *(5) 325 *(5) 329 *(1) *(3) *(2) *(1) *(2) *(1) *(5) *(1) *(3)

2. Hanford 300 Area Beryllium: Job Exposure History, n=11,964 Employer History Files, 11/2002 305 3720 333 306W 306E 327 308 309 324 3760 313 326 331 337 0.1-100 100.1-500 500.1-1250 1250.1-1500 1500.1-3000 Double positive worker in job Person-Years 3709A 3701D 3746 3707D 3718 304 303J 3717B 320 3767 328 3770 314 3708 3790 3745B 338 318 3703 3769 384 3702 *(#) *(1) *(6) *(3) *(1) *(4) *(11) *(2) *(3) *(2) 325 *(4) 329 *(1) *(3) 3706

3. Hanford 300 Area Beryllium: Job Exposure History, n=1,241 Former Worker Beryllium Questionnaire & Occupational History Survey, 11/2002 305 3720 333 306W 306E 327 308 309 324 313 331 337 Low (0.1-25) Low-Med (25.1-50) Medium (50.1-100) Med-High (100.1-500) High (> 500.1) Double positive jobs/bldg Person-Years 3709A 304 303J 3717B 320 314 3706 3790 338 318 3745B 336 335 340 3745 3702 321 384 3730 3714 3707A 350 303F 303K 303A 3707C 303B 303G 303E 305B 305A 3763 3760 3765 3705 3708 3731A3731 3704 3712 334 311 3751A *(#) *(1) *(3) *(2) *(1) *(3) *(5) *(1) 329 *(1) 326 *(3) 328 *(2) *(1) *(4) 325 *(2) *(1) *(2) *(4) *(1) *(2)