1. 305 3720 333 306W 306E 327 325 308 329 309 324 3760 313 326 331 337 0.1-100 100.1-500 500.1-1250 1250.1-1500 1500.1-3000 Sensitized work (Jobs) Person-Years *(#) *(4) *(33) *(7) *(10) Hanford 300 Area Beryllium: Job Exposure History n=11,964 Employer History Files 9/2001 Operations Performed in Beryllium Exposed Buildings 1. Fuels manufacturing: 333, 313, 303 2. Fuels research (including fuels pilot plants): 313, 306, 308, 303, 304, 305B, 309, 314, 324, 325, 326, 327, 3707 3. Other research (optics, metallurgy, physics, biology, etc): 324, 327, 331, 3706, 3716, 3745B 4. Research support (machining, fabrication, etc.): 306, 328, 3731A, 3751A 5. Chemical or radiochemical laboratory operation: 320, 325, 329, 3706, 3708, 3720 6. Storage of Be-containing process waste: 303, 305B, 311TF, 334A 7. Storage of Be-containing materials: 309, 318, 3708, 3712, 3718 *(24) *(11) 3709A 3701D 3746 3707D *(1) 3718 *(1) 304 303J 3717B *(10) *(8) *(1) 320 3767 328 *(23) 3770 314 3708 3706 3790 3745B *(1) 338 318 *(1) 3703 *(6) 3769 *(14) 384 *(20)

2. 305 3720 333 306W 306E 327 325 308 329 309 324 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 *(#) *(3) *(8) Hanford 300 Area Beryllium: Job Exposure History n=11,964 Employer History Files 9/2001 Operations Performed in Beryllium Exposed Buildings 1. Fuels manufacturing: 333, 313, 303 2. Fuels research (including fuels pilot plants): 313, 306, 308, 303, 304, 305B, 309, 314, 324, 325, 326, 327, 3707 3. Other research (optics, metallurgy, physics, biology, etc): 324, 327, 331, 3706, 3716, 3745B 4. Research support (machining, fabrication, etc.): 306, 328, 3731A, 3751A 5. Chemical or radiochemical laboratory operation: 320, 325, 329, 3706, 3708, 3720 6. Storage of Be-containing process waste: 303, 305B, 311TF, 334A 7. Storage of Be-containing materials: 309, 318, 3708, 3712, 3718 3709A 3701D 3746 3707D *(4) 3718 304 303J 3717B 320 3767 328 3770 314 3708 3706 3790 3745B 338 318 3703 3769 384 *(1)

3. 305 3720 333 306W 306E 327 325 308 329 309 324 313 326 331 337 Employer history files only Former worker questionnaire only Both Person-Years Hanford 300 Area Beryllium: Job Exposure History n=965 Employer History Files and Former Worker Questionnaires Combined 9/2001 Operations Performed in Beryllium Exposed Buildings 1. Fuels manufacturing: 333, 313, 303 2. Fuels research (including fuels pilot plants): 313, 306, 308, 303, 304, 305B, 309, 314, 324, 325, 326, 327, 3707 3. Other research (optics, metallurgy, physics, biology, etc): 324, 327, 331, 3706, 3716, 3745B 4. Research support (machining, fabrication, etc.): 306, 328, 3731A, 3751A 5. Chemical or radiochemical laboratory operation: 320, 325, 329, 3706, 3708, 3720 6. Storage of Be-containing process waste: 303, 305B, 311TF, 334A 7. Storage of Be-containing materials: 309, 318, 3708, 3712, 3718 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

4. 305 3720 333 306W 306E 327 325 308 329 309 324 313 326 331 337 Low (0.1-25) Low-Med (25.1-50) Medium (50.1-100) Med-High (100.1-500) High (500.1-800) Sensitized jobs/bldg Person-Years *(#) *(3) *(2) *(1) Hanford 300 Area Beryllium: Job Exposure History n=965 Former Worker Beryllium Questionnaire & Occupational History Survey 9/2001 Operations Performed in Beryllium Exposed Buildings 1. Fuels manufacturing: 333, 313, 303 2. Fuels research (including fuels pilot plants): 313, 306, 308, 303, 304, 305B, 309, 314, 324, 325, 326, 327, 3707 3. Other research (optics, metallurgy, physics, biology, etc): 324, 327, 331, 3706, 3716, 3745B 4. Research support (machining, fabrication, etc.): 306, 328, 3731A, 3751A 5. Chemical or radiochemical laboratory operation: 320, 325, 329, 3706, 3708, 3720 6. Storage of Be-containing process waste: 303, 305B, 311TF, 334A 7. Storage of Be-containing materials: 309, 318, 3708, 3712, 3718 *(2) 3709A 304 303J 3717B *(3) 320 328 314 3706 3790 338 318 *(1) 3745B *(1) *(2) 336 335 340 3745 3702 321 384 3730 *(1) *(7) *(1) 3714

5. 305 3720 333 306W 306E 327 325 308 329 309 324 313 326 331 337 Job exposure matrix only Former worker questionnaire only Both Person-Years Hanford 300 Area Beryllium: Job Exposure History n=965 Job Exposure Matrix and Former Worker Questionnaires 9/2001 Operations Performed in Beryllium Exposed Buildings 1. Fuels manufacturing: 333, 313, 303 2. Fuels research (including fuels pilot plants): 313, 306, 308, 303, 304, 305B, 309, 314, 324, 325, 326, 327, 3707 3. Other research (optics, metallurgy, physics, biology, etc): 324, 327, 331, 3706, 3716, 3745B 4. Research support (machining, fabrication, etc.): 306, 328, 3731A, 3751A 5. Chemical or radiochemical laboratory operation: 320, 325, 329, 3706, 3708, 3720 6. Storage of Be-containing process waste: 303, 305B, 311TF, 334A 7. Storage of Be-containing materials: 309, 318, 3708, 3712, 3718 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 *(3) *(2) *(1) *(2) *(3) *(1) *(2) *(1)