TEFLON FINE POWDER/DISPERS ION OPERATORS C-8 BLOOD SAMPLE RESULTS /(*lO C-8 in Blood (ppm) First Sample Second Sample Change 26.0 20.0 -6.0 24.0 25.0 +1.0 11.0 8.2 -2.8 9.4 7.9 -1.5 8.2 6.5 -1.7 7.0 7.7 +0.7 6.9 5.9 - 1.0 5.6 4.2 -1.4 4.4 4.9 +0.5 4.3 5.6 +1.3 3.9 3.6 -0.3 3.6 2.7 -0.9 3.5 2.1 -1.4 2.9 2.8 -0.1 2.8 2.8 0.0 CM o 2.6 2.4 2.5 1.8 -0.7 2.5 2.5 0.0 2.1 1.6 -0.5 1.6 1.5 - 0.1 1.5 1.2 -0.3 1.3 1.1 -0.2 JWR:ldr/10/19/83 Days Between Samples 363 364 391 364 363 364 337 334 365 401 364 362 363 357 365 391 336 349 288 384 366 362 000246 % Per Year Change -23 +4 -24 -16 -21 +10 -16 -27 +13 +27 -8 -25 -40 -3 0 -7 -28 0 -30 -6 -20 -15 EID079746 TEFLON FEP OPERATORS C-8 BLOOD SAMPLE RESULTS C-8 in Blood (ppm) First Sample Second Sample Change 7.5 6.6 -.9 4.5 3.7 -.8 3.1 2.8 -.3 2.1 1.5 - .6 1.8 1.1 -.7 1.8 1.6 -.2 1.6 1.4 -.2 1.25 1.20 -.05 1.20 1.00 -.2 0.95 0.79 -.16 0.86 0.75 -.11 0.75 0.72 -.03 0.52 0.44 -.08 0.51 0.42 0.41 0.48 0.39 0.46 -.03 -.03 + .05 0.38 0.36 -.02 Days Between Samples 362 380 384 364 364 392 393 171 333 391 565 364 365 337 445 363 363 % Per Year Change -12 -17 -9 -29 -39 -10 -12 -9 -18 -7 -8 -4 -15 -6 -6 +12 -5 JWR:ldr/10/19/83 V 00024V EID079747 SHORT SERVICE OPERATORS C-8 BLOOD SAMPLE RESULTS Fine Powder Last Sample PPM .02 .19 .93 4.00 Days in Job 61 212 375 603 PPM Per Year Change + .09 +.24 + .03 -.18 FEP .05 .05 .15 .23 .66 o U1 95 124 135 165 492 266 + .15 + .10 +.38 + .09 + .24 -.24 JWR:ldr 10/19/83 00248 EID079748 NEW HIRES - TEFLON Date of First Sample 07/28/81 10/01/81 10/07/81 10/13/81 Date Hired 07/27/81 08/03/81 04/20/81 04/20/81 C-8 Blood Level (ppm) <0.007 0.009 0.007 0.015 Months on Plant Before First C-8 Blood Test 0 2 5 1/2 5 3/4 AJP002380 JWR: Idr 10/19/83 000ZA9 EID079749

y}R,6_ 3W* 000410 RUM- TEFLON FINE POWDER/DISPEKSION OPERATORS C-8 BLOOD SAMPLE RESULTS C-8 in Blood (ppm) First Sample Second Sample Change 26.0 20.0 -6.0 24.0 25.0 +1.0 11.0 8.2 -2,8 9.4 7.9 -1.5 8.2 6.5 -1.7 7.0 7.7 +0.7 6.9 5.9 -1.0 5.6 4.2 -1.4 ..,,4.4 4.3 ; 3.9 4.9 +0.5 5.6 +1.3 3.6 -0,3 3.6 2.7 -0.9 3.5 2.1 4 2.9 2.8 -0.1 2.8 2,8 0.0 2.6 2.4 -0.2 2.5 1.8 -0.7 2.5 2.5 0.0 2.1 1.6 -0.5 1.6 1.5 -0.1 1.5 1.2 -0.3 1.3 1.1 -0.2 JWR:Idr/10/19/83 Bays Between Samples 363 364 391 364 363 364 337 334 365 401 364 362 363 357 365 391 336 349 288 384 366 362 % Per Year Change -23 +4 -24 -16 -21 +10 -16 -27 +13 +27 -8 -25 -40 -3 0 -7 -28 0 -30 -6 -20 -15 000411 TEFLON FEP OPERATORS C-8 BLOOD SAMPLE RESULTS C-8 in Blood (ppm) First Sample Second Sample Change 7.5 6.6 -.9 4.5 3.7 - A 3.1 2.8 -.3 2.1 1.5 -.6 1.8 1.1 -.7 1.8 1,6 -.2 1.6 1,4 -.2 1.25 1.20 -.05 1.20 0.95 1.00 0.79 -.2 -.16 0.86 0.75 -.11 0.75 0.72 -.03 '*i o 00 0.52 0.44 0.51 0.48 -.03 0.42 0.39 -.03 0.41 0.46 +.05 0.38 0.36 -.02 Days Between Samples 362 380 384 364 364 392 393 171 333 391 565 364 365 337 445 363 363 o p-i a % Per Year Change -12 -17 -9 -29 -39 -12 , -9 -18 -7 -8 -4 -15 -6 -6 +12 -5 JWR:Xdr/10/19/8.3 000412 SHORT SERVICE OPERATORS C-8 BLOOD SAMPLE RESULTS Fitie Powder Last Saoule PPM .02 .19 .93 4.00 *** FEP Days in Job 61 212 375 603 .05 95 .05 124 .15 135 .05 165 .23 492 .66 266 PPM Per Year Change +.09 +.24 +.03 - .18 +.15 +.10 +.38 +.09 +.24 -.24 JWRldr 10/19/83 000413 HEW HIRES - TEFLON Date of First Sample 07/28/81 10/01/81 10/07/81 10/13/81 Date Hired 'C-8 Blood Level (ppm) 07/27/81 <0.007 08/03/81 0.009 04/20/81 0.007 04/20/81 : 0.015 Months on Plant Before First -8 Blood Test 0 2 5 1/2 5 3/4 JWR:Idr 10/19/83 000414

TEFLONe FEP OPERATORS : -8 BLOOD SAMPLE RESULTS C-8 in Blood (ppm) SFaimrpslte SSaemcpolned Change 7.5 6.6 -.9 4.5 3.7 -.8 3.1 2.8 -.3 2.1 1.5 -.6 1.8 11 -7 1.8 1.6 -.2 1.6 1.4 -.2 1.25 1.20 -.05 1.20 1.00 -.2 0.95 0.79 -.16 0.86 0.75 -.1 0.75 0.72 -.03 0.52 0.44 -.08 0.51 0.48 -.03 0.42 0.39 -.03 0.41 0.46 +.05 0.38 0.36 -.02 Days BSeatmpwleeesn 362 380 384 364 364 392 393 1m 333 391 565 364 365 337 445 363 363 % CPhearnYgeear -12 -17 -9 -29 -39 -10 -12 -9 -18 -7 -8 4 -15 -6 -6 +12 -5 JWR:1dr/10/19/83 2 g ~ 000227 EIDO079747 SHORT SERVICE OPERATORS C-8 BLOOD SAMPLE RESULTS Fine Powder Last Sample PPM 02 .19 93 4.00 FER .05 05 215 .05 .23 66 Days in Job 61 212 375 603 95 124 135 165 492 266 PPM Per Year Change +.09 +.24 +.03 -.18 +.15 +.10 +.38 +.09 +.24 -.24 JWR: 1dr, 10/19/83 g Ss 8 000228 EID079748 NH EW IR-TEEFLS ONe Date of First Sample 07/28/81 10/01/81 10/07/81 10/13/81 Date Hired 07/27/81 08/03/81 04/20/81 04/20/81 C-8 Blood Level (ppm) <0.007 0.009 0.007 0.015 Months on Plant Before First C-8 Blood Test 0 2 51/2 5 3/4 JWR: ldr 10/19/83 . 000249 5 g EID079749

EID091343 7/06/82 Commnication that based on C-8 findings the blood sampling program would be reduced to only those directly exposed.

siotf ARR_ R Ju6 y3 i a7 000410 : ~oD ARRRG - 3442 TEFLONe FINE POWDER/DISPERSION OPERATORS C-8 BLOOD SAMPLE RESULTS | | | i " AY BD C-8 in Blood First Sample Second Sample 26.0 20.0 24.0 25.0 11.0 8.2 9.4 7.9 8.2 6.5 7.0 7.7 6.9 5.9 5.6 4.2 iss rx 4.3 5.6 3.9 3.6 3.6 2.7 3.5 2.1 2.9 2.8 2.8 2.8 2.6 2.4 2.5 1.8 2.5 2.5 2.1 1.6 1.6 1.5 1.5 1.2 13 1.1 (ppm) Change 6.0 +1.0 -2.8 to-L5 -17 +0.7 1.0 ~1.4 0.5 +1.3 ~0.3 ~0.9 ~1.4 -0.1 0.0 0.2 -0.7 0.0 0.5 -0.1 -0.3 -0.2 JWR:1dr/10/19/83 Days Between Samples 363 364 391 364 363 364 337 334 365 401 364 362 363 357 365 391 336 349 288 384 366 362 % Per Year Change -23 + ~24 -16 -21 +10 16 -27 .

RECVCIO 000418 j-h-h - 9vW IP TABLE 1 TEFLON FINE POWPER/DISPERSIOK OPERATORS C -8 BLOOD SAMPLE RESULTS DATE OF C-8 IN FIRST BLOOD- SAMPLE jiffC^l- DAYS IN JOB AT SAMPLE DATE DATE OF SECOND SAMPLE C-8 IN BLOOD (PPM) DAYS IN JOB AT SAMPLE BATE 1 / W w( 2/18/82^ 1Q/8/81 8/7/81*'*' lO / l/ sT ** , 2/11/!

BLOOD SAMPLING RESULTS (Attachment III) through MayAtt1a4.ched is a summary of sampling results available the dispersAisonexpiesctbeedingfroumsedpreavreiouisndiscaamptliinngg,iowsitbelsoodwhelreevelosn.ly results areSamavpalielsabflre,om wDeorwdirlelchtbearaeblejustot cboemipnagrerectehiivsedp.iantW,henwhere ednicree.ct exposure to C-8 is possible, with Washington Works' experiWashingtonWeWoruknsderasretanbdeintghatdissctursasteedg.ies for further sampling at "W.AD.BINGAELSle MEANNEURFGAYCT&UREINNVGIRODNIMVEINSTIAOLN AFFAIRS Attachments EID090077 g 000160 1" cam ei E. 1. bu Pont DE NEMOURS & CoMPANY WILMINGTON, DELAWARE 19898 TOXICOLGCY AND INDUSTRIAL MEDICINE Page 1 (carbon copies listed on page 3) : May 6, 1981 PERSONAL CONFIDENTIAL MENO TO: PH.PD,E.

All blood samples were analyzed by the C-8 specific method.

All blood samples were analyzed by the C-8 specific method.

BLOOD SAMPLING RESULTS (Attachment III) Attached is a summary of sampling results available through May 14.