Document dnmneKOYeEnBBX93voKbk1Nd9

AR226-2083 C-8 SAHPLIH6 PROJECT PA6E 1 OF 41 SUHHARY OF SPECIAL C-8 SAMPUN6 PROJECT Jennifer Nichols Environmental Lab LSE 9-16-97 EID093252 KID137016 RJZ021182 '.I C-8 SAMPLING PROJECT PAGE I OF 41 TABLE OF CONTENTS - PASE TITLE PAGE........... .................... ......... 1 TABLE OF CONTENTS.................................. 2 INTRODUCTION ....................................... 3 SUMMARY OF AIR MONITORING........................... 4 SUMMARY OF WIPE SAMPLING............................ 5 ATTACHMENT 1: AIR SAMPLING RESULTS ............ ..... . 6 SUMMARY OF AIR SAMPLING PATHSFORWARD.................. 24 ATTACHMENT 2: INVESTIGATION OF HVAC UNITS............. 26 ATTACHMENT 3: SURFACE WIPE SAMPLING RESULTS ........... 30 WIPE SAMPLING CONCLUSIONS/PATHSFORWARD............... 36 FIGURE 1: ROOF HVAC SAMPLING LOCATIONS (AIR) ........... 37 FIGURE 2: ROOF SAMPLING LOCATIONS (WIPE) ........... 38 FIGURE 3: PERCENT RECOVERY OF WIPE SAMPLES........... 39 FIGURE 4: AVERAGE VALUES AT ROOF LOCATIONS........... 40 REFERENCES ......................................... 41 RJ202J183 EID093253 EID137017 C-8 SAMPLING PROJECT PAGE 3 OP 41 In response to the Summary of 1995 C-8 Blood Testing (Playtls, 1995) results, and subsequent 1996 Industrial Hygiene Follow-up Report (Playtls, 1996), an extensive sampling campaign for C-8 in air and on surfaces (wipe testing) was conducted in Teflon* areas. Areas/jobs that exhibited higher or lower than norm! C-8 blood levels were studied In the follow-up report. Sampling priorities for this study were assigned based on the results of the follow-up. The Investigation was conducted by Environmental Lab LSE Jennifer Nichols under the supervision of IH Lab Technician Becky Bines. BID093254 EID137Q18 C-8 SAMPLING PROJECT PAGE 4 OF 41 ) C-8 IN AIR MONITORING Sample locations results and any conclusions/pathsforward that were determined are attached (attachment 1). Sampling was conducted using either the Dupont Alpha 2 or P200A pumps with flows set in the range of 200mL/min, +/-5mL/min. Sampling media used was conditioned Tenax* sorbent tubes supplied by the Teflon* lab. Analysis was conducted by Teflon* Lab personnel per method NU3627. Six sets of sampled tubes (206 samples total), along with sample blanks, were analyzed approximately every two weeks. Set 4, analyzed August S, 1997, was found to have a high value for the blank sample submitted. Upon investigation by Jennifer Nichols and Chemist Steve Peck, it was found that approximately half of set 4 (including the blank sample) had been contaminated by an impure reagent. For this report, the amount of contaminant in the blank sample will be deducted from each contaminated sample and shown in ( ). After the deduction, a number of samples still exhibited levels worth noting. . The majority of the air samples were taken in FEP and Homopolymer Control Rooms where a considerable amount of the employee time is spent. Additional monitoring was conducted on roof HVAC units (at the Intake) that supplied these control rooms. Because a possible route for C-8 exposure could be through the HVAC units, an investigation into these units was conducted and is attached (attachment 2). The focus was placed on the 8-162 units because of their close proximity to the C-8 emissions stack located on B-124 (figure 1). Depending on prevailing wind patterns or weather conditions, it was observed that the emission from this stack looped down onto B-162. Weather conditions are summarized with the results (attachment 1); for more detail and observations see notebook $149 R located in Environmental Lab, B-3. The Monomer Control Room was added to the sampling list, although it was not originally a concern, because it has a roof intake that is clos to the C-8 emission stack. Additional samples were taken on the C-8 Recovery Operator while changing HVAC filters, in the FP&D wax room, FP&D Dryer Operators while cleaning the dryers, B-162 smoking area, and the FEP #3 slab drop while in use. Locations were chosen because of information from the Industrial hygiene report, or from pathsforward from previous sampling not as extensive as this campaign. ^093255 EID137019 rff11"n'Trv *7 I . l C-8 SAMPLING PROJECT PAGE 5 OF 41 C-8 SURFACE WIPE SAMPLING Sample locations, results, and conclusions/pathsforward determined are attached (attachment 3). Sampling was conducted using one to three SKC Smear Tabs per location. The solvent used on the tabs was reagent quality methanol; reagent used In the analysis. A sampling template was cut to the size of 100cm(2). Sampling techniques were adapted from OSHA's 'Sampling for Surface Contamination Guidelines*. Pink latex rubber gloves topped with a new pair of clear latex gloves per each sampled area were used to prevent cross contamination between locations. Forty-seven samples -- 31 from Homopolymers (includes roof samples) and 16 from FEP -- along with a blank sample were submitted for analysis. Analysis was conducted by Teflon* Lab personnel using method MU3627. A recovery study was set up on Pyrex* dishes and aluminum lab pans. Results indicate that as concentrations increase, the percent recovery decreases (figure 3). Many factors (such as evaporation, size of smear tab, dry time) may contribute to this. Because of the field variables (i.e., conditions In the area, type of surface sampled) setting up a thorough recovery study would be time consuming. If future wipe sampling campaigns are conducted and time permits, this should be considered In a pathforward. The locations chosen for the wipe sampling were coordinated with locations chosen for the atr samples. Control rooms (excluding FEP's previous oven and extruder control rooms which were in the process of removal), and the areas that surround the control rooms, were sampled. Additional locations included lunch/breakrooms, a lounge, a smoking area, an office area, warehouses and. roof locations. The roof locations were also chosen to coordinate with the air samples and so that as little weather conditions as possible would have affected them (figure 2). Because of shutdown (non-routine work and extensive equipment replacement) sampling locations were limited to those which still exhibited surface 'dirtiness'. The type of material sampled was noted (along with results on attachment 3) and more detail with location sketches can be found In notebook $149 R located in the Environmental Lab, B-3. Developing a limit, or concern level, for the dermal dose (amount absorbed through the skin) is not feasible due to the many variables Involved. These Include; amount of C-8 per a surface area, amount of area the skin is exposed to during a shift, fraction of C-8 that would be absorbed into the skin, and the fraction of C-8 that would be picked up from the surface. Calculating an estimated dermal dose could give a result that might deviate from a true value by several degrees. Therefore, this study is designed to identify and compare surface areas that have more residual C-8 than others. BID093256 9snt07r>i EID137020 C*8 SAMPLING PROJECT PAGE 6 OF 41 "V ATTACHMENT 1: AIR SAMPLING RESULTS This attachment contains Individual charts for each sample location. Information on each chart Includes; sample date, result of the sample In moles per billion (MPB), Mind direction In the morning and afternoon, weather conditions for that day, and any conclusions or pathsforward that were determined. RJZ021187 BID0932S7 EXD137021 C-8 SAMPLING PROJECT PAGE 7 OF 41 DATE 07-08-97 07-17-97 08-05-97 08-08-97 C-8 RECOVERY OPERATOR nTF068/08PH) RESULT MPB <0.01 0.12 0.06 <0.01 HIND MORN/AFTER NE/NE NE/NE S,SE/S,SE S.SH/SH WEATHER CLEAR CLEAR CLEAR CLEAR CONCLUSION/PATHFORWARP * ADDITIONAL SAMPLING NEEDED * VARY PERSONNEL TESTED 1UZQ2L188 BID093258 EID137022 -/-A i r C-8 SAMPLING PROJECT PAGE 8 OF 41 MONOMER CONTROL ROOM OHOIOO) DATE 07-21*97 07-22-97 07-23-97 07-24-97 07-25-97 07-28-97 07-29-97 07-31-97 (-04-97 08-05-97 08-07-97 08-08-97 08-12-97 08-13-97 RESULT MPB <0.01 <0.01 0.02 <0,01 0.02 0.05 (0.01) (<0.01) <0.01 C~~o.n 7 <0.01 <0.01 <0.01 <0.01 HIND HORN/AFTER . NE/NE SW/NH.S S/U S/S - S/E N/N,S S/N S/N.NH S/S.SE s,sE/iiT^5 S/N.NE s.sw/sw S.SE/E S/SE HEATHER CLEAR CLOUDY CLOUDY RAIN CLOUDY CLOUDY CLEAR CLEAR STORMY CLEAR CLEAR CLEAR RAIN RAIN CONCLUSIQH/PATHFQRWARD * RESULTS CONSISTENT * NO FURTHER SAMPLING NEEDED 681iEOZTH BID093259 EXD137023 C-8 SAMPLING PROJECT PAGE 9 OF 41 GRANULAR POLYKETTLE CONTROL ROOM (TTF0601 _ DATE 07-08-97 07-09-97 07-10-97 07-11-97 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 07-28-97 07-29-97 07-31-97 08-04-97 08-05-97 08-07-97 08-08-97 08-32-97 08-13-97 RESULT MPB <0.01 1.91 <0.01 0.11 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 (1.80) (<0.01) <0.01 <0.01 <0.01 <0,01 <0.01 <0.01 WIND MORN/AFTER NE/NE E/NW S/SW SIS NE/NE SW/NW,S S/W S/S S/E N/N.S S/N, S/N,NW S/S.SE S.SE/S.SE S/N.NE S.SW/SW S,SE/E S/SI WEATHER CLEAR RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY CLOUDY CLEAR CLEAR STORMY CLEAR CLEAR CLEAR RAIN RAIN COHCLUSION/PATHFORWARD * TWO HIGH RESULT INDICATE MORE SAMPLING NEEDED. * ONE HIGH RESULT WHILE RAINING, AND ONE HIGH RESULT WHILE CLEAR, INDICATES WEATHER NOT A FACTOR, KJZU2U90 EID093260 EID137024 C-i SAMPLING PROJECT PAGE 10 OF 41 FP&D AUTOCLAVE CONTROL ROOM (TTFOIO) DATE 07-09-97 07-10-97 07-11-97 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 07-28-97 07-29-97 07-31-97 08-04-97 08-05-97 08-07-97 08-08-97 08-12-97 08-13-97 RESULT . MPI. <0.01 <0.01 0.05 <0.01 <0.01 0.02 0.02 0.04 0.01 (<0.O1) (<0.01) - <0.01 , <0.01 0.02 . <0.01 <0.01 <0.01 HIND HORH/AFTER____ t/m S/SH s/s NE/NE SW/NW.S S/W S/S S/E N/N.S S/N S/N.NW S/S,SE $,$E/$,SE S/N,NE S.SW/SH S,$E/E S/SE WEATHER RAIN CLEAR CLEAR CLEAR CLODDY CLOUDY RAIN CLOUDY CLOUDY CLEAR CLEAR STORMY CLEAR CLEAR CLEAR RAIN RAIN COHCLUSION/PATHFORWARD * RESULTS CONSISTENT * NO MORE SAMPLING NECESSARY EID093261 EID137025 ili C-8 SAMPUNfi PROJECT PAGE li OF 41 ) ' EIHE POWDER FINISHING (DRYER) CONTROL ROOM (TTFQ31) ..PATE 07-09-97 07-10-97 07-11-97 07-21-97 .07-22-97 07-23-97 07-24-97 07-25-97 07-30-97 07-31-97 08-04-97 08-05-97 08-06-97 08-07-97 08-08-97 08-12-97 08-13-9** RESULT .. .HP? <0.01 0.01 0.06 0.76 0.02 0.33 0.05 0.08 (0.11) {<0.01) <0.01 <0.01 0.03 0.04 <0.01 <0.01 <0.01 WIND ....m o r n /a f t c r E/NW S/SW S/S NE/NE $W/NW,S S/W S/S S/E S/S,Sii S/N.NW S/S,SE S,SE/$,$ S/S,SE S/N.NE S.SW/SW S.SE/E S/SE WEATHER RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY CLEAR CLEAR STORMY CLEAR CLEAR CLEAR CLEAR RAIN RAIN CONCLUSIQM/PATHPQRWARD * TWO HIGH RESULTS INDICATE MORE SAMPLING HEEDED ECD093262 RJZ021192 EID137026 :VASJt? C-8 SAMPLING PROJECT PAGE 12 OF 41 FINE POWDER FINISHING DRYER OPERATOR (TTFl02/08Pt) DATE 07-14-97 07-14-97 07-25-97 07-25-97 08-06-97 08-06-97 08-12-97 08-12-97 08-12-97 .payroll # 10008 4872 4382 4824 10203 10177 10214 4382 4824 RESULT MPB <0.01 (10/ 0.26 0.18 0.16 0.06 0.06 <0.01 * <0.01 * * ROUTINE WORK, DID NOT CLEAN DRYER CONCLUSION/PATHFORWARD * INCIDENT REPORT FOR 7/14 ^ LEVEL INDICATES MECHANICAL INTEGRITY MAY HAVE SEEN RESPONSIBLE FOR ABOVE TLV RESULT * PLACE HIGH PRIORITY ON FOLLOW-UP * ADDITIONAL SAMPLING NEEDED WHEN DRYER IS BEING CLEANED EID093263 EID137027 C-8 SAMPLING PROJECT PAGE 13 OP #1 DATE 07-09-97 07-10-97 07-11-97 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 08-04-97 VAX ROOM (TTF028) RESULT MPB 0.06 0.37 0.40 0.42 0.28 0.S2 0.43 0.36 0.41 WIND HORN/AFTER E/NV S/SW S/S NE/NE SW/NM.S S/W S/S S/E S/S,SE WEATHER RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY STORMY COHCLUSIQN/PATHFORWARD * CONSISTENT RESULTS * GIVE ROUTINE SAMPLING FREQUENCY * SUGGEST ADMINISTRATIVE CONTROL LIMITING TIME INSIDE BID093264 EID137028 ---- . C-8 SAMPLING PROJECT PAGE 14 OF 41 DATE 07-09-97 07-10-97 07-11-97 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 07-30-97 08-04-97 08-07-97 B162 2ND LEVEL OUTSIOE SMOKING AREA (TM0048) RESULT MPB 0.43 0.26 0.32 0.17 0.15 0.23 0.22 0.23 (<0.01) 0.05 0.06 WIND HORN/AFTER E/NW S/SW S/S NE/NE SW/NW.S S/W S/S S/E s/s.sw S/S.SE S/N.NE WEATHER RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN lili COHCLUSIOH/PATHFORMARD * RESULTS CONSISTENTLY CLOSE TO ACTION LEVEL * MOVING SMOKING AREA SUGGESTED * NO ADDITIONAL SAMPLING NEEDED B a >09326S EID137029 C-8 SAMPLING PROJECT PAGE 15 OF 41 H. OFFICES ROOF HVAC (TM004S) : RESULT MINO PATE____________ MPB_________ MORH/AFTER 07-09-97 0,10 E/NW 07-10-97 . 'SPILLED* S/SV 07-11-97 0.13 S/S 07-21-97 0,15 NE/NE 07-22-97 0.07 SW/NW$ 07-23-97 0.11 S/W 07-24-97 0.14 S/S 07-25-97 (0.22) S/E HEATHER RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY CONCLUSlON/PATHFORHARD * CONSISTENT RESULTS * 00 FOLLOW-UP AIR SAMPLING IN OFFICE IN N. HALLWAY BID093266 EID137030 c-s SAMPLING PROJECT PAGE 16 OF 41 FP&P AUTOCLAVE CONTROL ROOM INTAKE (TH004S1 DATE 07-22-97 07-23-97 07-24-97 07-2S-97 07-29-97 08-05-97 RESULT HPB 0.19 0.51 0.96 2,90 (0.94) 0.30 mm ... horn/aft i r SW/NW.S S/H s/s S/E. S/N S,SE/$,SE - WEATHER CLOUDY CLOUDY RAIN CLOUDY CLEAR CLEAR CONCLUSION/PATHFORWARD * HIGH RESULTS. * RESULTS SUPPORT AREA'S CONTINUING EFFORTS TO REDUCE STACK EMISSIONS * FOLLOW-UP SAMPLING CAMPAIGN AFTER REMEDIATION Mimv/rv EID093267 EID137031 ` .* . C-8 SAMPLING PROJECT PAGE 17 OF 41 J 1 i i j ) MAX ROOM HVAC INTAKE (TM00451 DATE 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 07-29-97 08-05-97 RESULT HPB 0.26 1.21 1.08 2.13 0.69 2.17 0.19 WIND MORN/AFTER NE/NE SH/NW.S S/W S/S S/E S/N S.SE/S.SE * WEATHER CLEAR CLOUDY CLOUDY RAIN CLOUDY CLEAR CLEAR CQNCLUSION/PATHFORHARD * HIGH RESULTS * RESULTS SUPPORT AREA'S CONTINUING EFFORTS TO REDUCE STACK EMISSIONS * FOLLOW-UP SAMPLING CAMPAIGN AFTER REMEDIATION Miiznznr 093268 1ID137032 C-8 SAMPLING PROJECT PAGE 18 OP 41 MONOMER CONTROL ROOM HVAC INTAKE (TH004S) DATE 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 07-29-97 08-05-97 RESULT MP8 0.11 0.17 0.16 0.39 0.34 (0.45) 0.07 WIND MQRN/AFTER NE/NE SW/NW.S S/W S/S S/E S/N S,SE/S,$E WEATHER CLEAR CLOUDY CLOUDY RAIN CLOUDY CLEAR CLEAR CONCLUSION/PATHFQRWARD * COMPARING THE CONTROL ROOM RESULTS --------- ----------- TO THESE RESULTS, SNOWS THE HVAC FILTERS ARE SERVING A NECESSARY FUNCTION * FOLLOW-UP SAMPLING CAMPAIGN AFTER REMEDIATION m m im BID093269 EID137033 C-8 SAMPLING PROJECT PAGE 19 OF 41 NEW FEP CONTROL ROOM (TCP280) DATE 07-14-97 07-16-97 07-17-97 07-18-97 07-28-97 07-29-97 07-30-97 07- 31-97 08-04-97 08-06-97 08-07-97 08-08-97 08-12-97 08-13-97 mRESULT WIND _________HORN/AFTER___________WEATHER 0.03 NE/NE 0.02 NE/E CLEAR CLEAR 0.04 NI/HE 0.01 NE/NE CLEAR CLEAR 0.04 N/N.S CLOUDY (<0.O1) (0. 01) (<0 .01) <0.01 <0.01 <0.01 S/N s/s.su S/N.NW S/S.SE S/S,SE S/N.NE CLEAR CLEAR CLEAR STORMY CLEAR CLEAR <0.01 <0.01 <0.01 S.SW/SW S.SE/E S/SE CLEAR RAIN RAIN eONCLUSION/PATHFORHARD * RESULTS CONSISTENT ' * NO FURTHER TESTING NECESSARY BTD093270 EID137034 C-8 SAMPLING PROJECT PAGE 20 OF 41 FEP EXTRUDER CONTROL ROOM (TCP268) DATE 07-14-97 07-16-97 07-17-97 07-18-97 07-28-97 07-29-97 07-30-97 07-31-97 08-04-97 08-06-97 08-08-97 RESULT m .. o.os 0.04 0.04 0.04 0.45 (<0.01) {<0*01} {<0*01} <0.01 <0.01 <0.01 WIND MORN/AFTER ... NE/NE NE/E NE/NE NE/NE N/N,S S/N S/S.SW S/N.NW S/S.SE S/S.SE S.SW/SW WEATHER CLEAR CLEAR CLEAR CLEAR CLOUDY CLEAR CLEAR CLEAR STORMY CLEAR CLEAR CONCLUSION/PATHFORWARD * SOME HIGH RESULTS. HOWEVER CONTROL ROOM NO LONGER EXISTS (LOCATED IN NEW CR) * NO FURTHER TESTING NEEDED 102170701 BID09327| EXD137035 1j ) e-8 SAMPLING PROJECT PAGE 21 OF 41 PEP OVEN CONTROL ROOM fTCP2311 `POSITON 1 IS EAST-LARGE CONTROL PANEL DESK `POSITON 2 IS WEST-SMALL CONTROL PANEL OESK DATE 07-14-97 07-16-97 07-17-97 07-18-97 07-28-97 07-29-97 07-30-97 07-31-97 08-04-97 08-06-97 08-07-97 08-08-97 POSITION 1 MPB 0.09 0.07 4.31 0.06 0.19 (0.17) (0.12) (0.03) 0.02 0.05 0.04 <0.01 POSITION 2 MPB 0.18 0.16 0.08 1,59 0.07 (0.25) (<0.01) (0.07) 0.03 0.02 SPILLED 0.23 WIND MRN/AFTER NE/NE NE/E NE/NE NE/N N/N,$ S/N . $/$,$W S/N,NW S/S.SE S/S.SE S/N,NE s.sw/sw WEATHER CLEAR CLEAR CLEAR CLEAR CLOUDY CLEAR CLEAR CLEAR STORMY CLEAR CLEAR CLEAR CONCLUSION/PATHFORWARP * SOME HIGH RESULTS, HOWEVER CONTROL ROOM HAS BEEN MOVED TO NEW CONTROL ROOM ' * NO FURTHER TESTING NEEDED EID093272 tC t EID137036 C-8 SAMPLING PROJECT PAGE 22 OF 41 FEP POLYKETTLE CONTROL ROOM (TCP215V POSITON 1 IS CONTROL PANEL DESK POSITON 2 IS WET FINISH DESK DATE 07-14-97 07-16-97 07-17-97 07-18-97 07-28-97 07-29-97 07-30-97 07-31-97 08-04-97 08-06-97 08-07-97 08-08-97 08-12-97 08-13-97 POSITION 1 MPB O.OS <0.01 <0.01 <0.01 <0.01 (0.29) (<0.01) (<0.Q1) 0.48 <0.01 0.23 0.01 <0.01 <0.01 POSITION 2 MPB <0,01 <0.01 0.01 0.01 <0.01 (0.03) (0.01) (0.04) 0.12 <0.01 <0.01 <0.01 <0.01 <0.01 WIND MORN/AFTER NE/NE NE/E NE/NE NE/NE N/N,S S/N S/S,SW S/N,NW S/S.SE S/S.SE S/N,NE S,SW/SW S.SE/E S/SE WEATHER CLEAR CLEAR CLEAR CLEAR CLOUDY CLEAR CLEAR CLEAR STORMY CLEAR CLEAR CLEAR RAIN RAIN CONCLUSIQN/PATHFORWARQ * RESULTS NOT CONSISTENT * POSSIBLY MORE SAMPLING, BUT LOWER PRIORITY 1Z02I203 BID093273 EID137037 C-8 SAMPLING PROJECT PAGE 23 OF 41 #3 SLAB DROP WHILE IN USE (TCP2371 DATE 07-28*97 08-08-97 RESULT _ ...... HPB 0.37 0.2S NOTES ONLY RAN PART OF SAMPLE TIME RAN ENTIRE SAMPLE TIME CONCLUSIQN/PATHFORWARD * CONSISTENT RESULTS * MORE SAMPLING NECESSARY I WfflWmr EID093274 EID137038 C-8 SAMPLING PROJECT PAGE 24 OF 41 SUMMARY OF PATHFQRWARO ITEMS ADDITIONAL SAMPLING IS NEEDED ON C-8 RECOVERY OPERATOR (08PM) WHILE CHANGING FILTERS. THE FOUR SAMPLES TAKEN WERE ON THE SAME OPERATOR. EACH AREA HAS OPERATORS WHO CHANGE FILTERS. TESTING ADDITIONAL PERSONNEL/FILTER COMBINATIONS RECOMMENDED. SOME AREAS HAD A FEW HIGH RESULTS WHILE MIXED IN WITH LOW RESULTS. ADDITIONAL SAMPLING IN THOSE AREAS IS NEEDED. THEY INCLUDE: GRANULAR POLYKETTLE CONTROL ROOM (TTF06Q) FINE PONDER FINISHING (DRYER) CONTROL ROOM (TTF031) FEP POLYKETTLE CONTROL ROOM (TCP215)-1ow priority IN THE PAST, THE WAX ROOM (TTFQ28) HAS SHOWN HIGH RESULTS. THIS IS CONFIRMED IN THAT EIGHT OF THE NINE SAMPLES IN THIS STUDY WERE OVER THE ACTION LEVEL. ADMINISTRATIVE CONTROLS ARE SUGGESTED ON AMOUNT OF TIME SPENT INSIDE THE ROOM. RENEW FREQUENCY FOR ROUTINE SAMPLING. JHE S U B DROP (TCP237) IS A DIFFICULT SAMPLE TO GET DUE TO ITS LIMITED OPERATION. IT HAD BEEN TARGETED IN THE PAST AS A TROUBLE A THESE RESULTS CONFIRM THERE IS APPRECIABLE LEVELS. IT WAS 5 K HT T0 ATTENTION THAT THE BEST TIME TO SAMPLE THIS LOCATION W B E WHEN THE PRODUCTS 100 OR S100 ARE RUNNING AS THEY ARE FINE TOWfRfD AND RUN FAST. ADDITIONAL SAMPLING IS NEEDED DURING THESE CONDITIONS. THE B-162 SECOND LEVEL SMOKING AREA (TM0048) SHOWED CONSISTENT VALUES CLOSE TO THE ACTION LEVEL (0.28 MPB) INDICATING THE NECESSITY TO FIND AN ALTERNATE SMOKING AREA. ONE CONCERN IS THE FINE POWDER FINISHING DRYER OPERATOR (08PI) WHILE CLEANING THE ORYERS. ONE RESULT WAS HIGH (2.4 MPB) WHILE CLEAN DRYER #3. DRYER #3 CONTAINED A BELT (SHOULD MINIMIZE EXPOSURE)-RATHER THAN THE PAPER USED ON DRYER #2, SINCE SHUTDOWN, MTHDRVERS NOW CONTAIN THE BELT. INCIDENT REPORT, F0L970015, FOR THE HIGH RESULT INDICATED MECHANICAL INTEGRITY MAY HAVE BEEN RESPONSIBLE. THIS WAS THE ONLY SAMPLE TAKEN ON THE #3 DRYER, THf5RE FOLLOW-UP SAMPLES ON THIS UNIT SHOULD BE DONE. A HIGH PRIORITY IS PLACED ON THIS FOLLOW-UP. THE ROOF SAMPLES DEMONSTRATE A NEED FOR BETTER CONTROLS ON THE C-8 STACK EMiSSIONS AND/OR LIMITING THE TIME SPENT (WITHOUT A RESPIRATOR) ON THE ROOF. LOCATIONS CLOSEST TO THE STACK SHOWED LOWER LEVELS TM A N THOSE TO THE SOUTH (FIGURE 4) DEMONSTRATING A LOOPING EFFECT OF THE EMISSION. AS STATED BEFORE, ON SEVERAL OCCASIONS WHEN I WAS ON THE ROOF I WITNESSED THE EMISSION LOOPING EFFECT (DEPENDING ON THE WEATHER). FOLLOW-UP SAMPLING CAMPAIGN SUGGESTED AFTER REMEDIATION. EID093275 EID137039 RJZQ21205 C-B SAMPLING PROJECT PAGE 25 Of 41 ? 3 K S BROUGHT to our atten t i o n but not accomplished in thi s campaign, INCLUDED THE JOB 90/50 PACKQUT BY THE MET FINISH OPERATOR. THIS PRODUCT IS INFREQUENTLY PRODUCED MAKING SAMPLES DIFFICULT TO GET. FUTURE SAMPLES FOR C-8 AND NUISANCE OUST ARE NEEDED. * SPECIAL ATTENTION SHOULD BE PAID TO THE AREA WHERE FRESH C-8 IS STORED (OUTSIDE OF THE GRANULAR POLYKETTLE CONTROL ROOM). IN THE DEC. 18, 1996 MEMORANDUM (FOLLOW UP TO BLOOD TESTING) IT WAS CONCLUDED THAT THERE HAS NO DRIP PAN UNDER THE TANK'S SPIGOT AND ONE SHOULD BE PLACED THERE IMMEDIATELY. DURING AIR SAMPLING THERE WAS A BUCKET COLLECTING THE DRIP. DURING WIPE SAMPLING THE BUCKET WAS NO LONGER THERE AND WET C-8 WAS DRIPPING AND ACCUMULATING ON THE FLOOR. THIS IS A HIGH TRAFFIC AREA ANO IT WOULD BE EASY TO TRACK DRIED C-8 INTO OFFICES, CONTROL ROOMS, ETC. NOT ONLY IS THE CATCH BUCKET VERY IMPORTANT, BUT IT IS RECOMMENDED TO FIX THE SPIGOT TO REMEDIATE THE DRIP. / EED093276 EID137040 <Wf7nvr%t C-8 SAMPLING PROJECT PAGE 26 OF 41 ATTACHMENT 2: INVESTIGATION OF HVAC SYSTEMS This attachment contains information on HVAC systems supplying the control rooms and other pertinent locations sampled. The information was obtained by interviewing various Teflon* personnel as no known single person has a thorough knowledge of the HVAC units. ! BID093277 ED137041 lA ziw rm C-S SAMPLING PROJECT PAGE 27 Of 41 GRANULAR POLVKETTLE CONTROL ROOM (TTF0601 , THIS CR HAS AN INTERNAL UNIT TO THE RIGHT AS YOU ENTER THE OOOR. AS YOU PASS INTO THE COMPUTER AREA YOU CAN SEE A VENT OF MAKE-UP AIR WHICH WAS TRACED INTO THE WAX ROOM VENTILATION SYSTEM. FP&D AUTOCLAVE CONTROL ROOM (TTFOIO) THIS CR*S SYSTEM IS LOCATED ON THE ROOF (FIG, 1). THE INTAKE IS LOCATED ON TOP OF THE RETURN FAN SYSTEM (AC UNIT IS CONNECTED TO THIS). FINE POWDER FINISHING ORYER CONTROL ROOM (TTF031) THIS CR*S SYSTEM IS INTERNAL WITH (SUPPOSIBLY) NO MAKE-UP AIR. THE CR IS LOCATED BETWEEN DRYER CORRIDORS. THERE IS A HVAC UNIT ON THE ROOF FOR THE DRYER AREA WHICH HAS ITS DUCT WORK RUNNING THROUGH THE CEILING UNIT OF THE CR. IT THEN BRANCHES OFF AND HANGS OVER TOP OF THE DRYERS ALONG EACH CORRIDOR. THERE IS A LARGE (SAUCER SIZE) HOLE IN THE CEILING OF THE CR WHICH COULD PROVIDE MAKE-UP AIR, THIS IS A SMALL CR WITH DOORS ON BOTH SIDES WHICH ARE FREQUENTLY USED. WAX ROOM (TTF028) - THERE IS AN OUTSIDE OOOR WHICH IS FREQUENTLY LEFT OPEN FOR VENTILATION BUT OCCASIONALLY ITS BEEN SHUT. THE HVAC UNIT IS LOCATED ON THE ROOF (FIG. 1). N. OFFICES ROOF HVAC THIS UNIT IS ON THE SANE LEVEL AS OTHERS BUT, APPEARS TO SIT LOWER BECAUSE IT IS FLUSH WITH THE GROUND. IT IS CLOSEST TO THE C-8 STACK (FIG. 1). KJ/02120S EED093278 EXD137042 vj C-8 SAMPLING PROJECT PAGE 28 OF 41 MONOMER CONTROL ROOM (THOlOOl THERE IS A ROOF UNIT HARKED CCR AND COMPUTER #1 UNIT. A SECOND UNIT, WEST OF IT, IS MARKED COMPUTER #2 UNIT. THESE ARE DIRECTLY ACROSS FROM THE C-8 STACK (FIG. 1). SMOKING AREA THIS AREA IS ONE MORE LEVEL DOWN THAN THE SAMPLING AREA OF THE HVAC UNITS. THE C-8 STACK IS LOCATED OIRECTLY UP AND A LITTLE LEFT. THERE IS A SHALL VENT (12" X 12") LOCATED ABOVE BLOWING OUT. IT WAS TRACED TO THE MEN'S RESTROOM IN THE NORTH OFFICES HALLWAY (1ST ON RIGHT). IT IS SUPPLIED BY THE N. OFFICES ROOF NEW FEP CONTROL ROOM ITCP2801 THIS CR HAS AN INTERNAL UNIT WITH NO MAKE-UP AIR. ON A SAMPLE DROP OFF, I NOTED A PAINT FUME SHELL INSIDE THE CR. THE ODOR WAS NOT PRESENT JUST OUTSIDE THE CR IN THE EXTRUSION AREA. FEP EXTRUDER CONTROL ROOM CTCP268) THIS ROOM HAS TWO WINDOW UNITS THAT COMPRISE ITS SYSTEM. 1717(1701 EID093279 EID137043 C-8 SAMPLING PROJECT PAGE 29 OF 41 FEP OVEN CONTROL ROOM (TCP231) HVAC OMIT IS LOCATED ON THE OUTSIDE OF THE NORTH HALL OF THE CONTROL ROOM, IT IS BESIDE OF THE NUMBER TWO OVEN ENTRANCE AND SURROUNOED BY THE CONVEYER SYSTEM THAT CARRIES THE PONDER PRODUCT INTO THE OVEN (AREA SETS VERY DUSTY AT TIMES). IT APPEARS THAT MAKE-UP AIR COMES FROM A UNIT LOCATED JUST ABOVE THE AC. THERE IS WHITE RESIDUE ON THE INTAKE COVER. FEP POLYKETTLE CONTROL ROOM (TCP215) THIS CONTROL ROOM HAS A ROOF UNIT, LOCATION IS UNDETERMINED AT THIS POINT. * NOTE: BOTH THE FEP OVEN CR AND THE FEP EXTRUDER CR HILL BE MOVING INTO THE NEW CONTROL ROOM DURING SHUTDOWN. THE EXTRUDER CONTROL ROOM HILL BE COMPLETELY REMOVED AND THE OVEN CONTROL j ROOM HILL REMAIN TO HOUSE COMPUTER SYSTEMS. &D093280 EID137044 RJZ021210 C-8 SAMPLING PROJECT PAGE 30 OF 41 ATTACHMEMT 3: SURFACE HIPE SAMPLING RESULTS This attachment contains charts for samples 1n Homopolymers and Fep areas. Information on each chart includes: a description of the location, the type of surface that was wiped, and the results reported In mlcrograms (ug). RJZ0212 EDD093281 EID137045 C-8 SAMPLING PROJECT PAGE 31 OF 41 HOMOPOLYHER (BLDG 162) ARIAS LOCATION SURFACE Fine Powder Finishing (Dryer) Control Room -top of monitor plastic -In' Foreman*s room adjacent to monitor room painted on top of cabinet In rear corner metal Dryer Area behind Control Room at Clean Room end of dryers on top of cabinets painted metal -Dry Screen Room on blue switch boxes for moisture analyzer painted metal -in front of Dry Screen Room (Max Room metal end) on small metal shelf on #2 Dryer side -along west wall by #3 Dryer on top of yellow breathing air box painted metal Packout Dispersion Area -at small control panel (across from stairwell doorway) on top of face shield box clear plastic Warehouse -behind the packout dispersion area on tan supply cabinet by desk ' Autoclave Control Room -on top of refrigerator painted metal painted metal -on top of long shelf that has monitors sitting on it laminated wood Autoclave/Polykettle Control Room area -on top of tan filing cabinet roughly in-between each Control Room painted metal RESULTS(uo) 62.2 40.1 310.2 36.8 124.8 29.3 27.2 31.1 23.2 48.3 28.6 zmzorzm BID093282 EID137046 C-8 SAMPLING PROJECT PAGE 32 OF 41 Polykettle Control Room Area -outside door on the stand that holds the fresh C-8 tank -small white refrigerator to the left of mixing hood by C-8 tank Polykettle Control Room -on top of black coat rack Inside door -on top of microwave -doorknob, as you enter Control Room (roughly 100cm(2) area) Monomer Control Room -on top of monitor at far end (from door) of control panel -on top of monitor in middle of control panel of monitor (under vent) in r/monitor room adjacent to area Lunchroom -(in Monomer Control Room area) on top of beige refrigerator N. Offices area -(off of corridor by Monomer Control Room) last office on left (Ruth) on filing cabinet right of desk Womens Lounge -(across from door to smoking area) on top of microwave Smoking area . -on top of vent above the bench -collected sample of dust in vent (weighing 0.09351 grams) metal painted metal painted metal piastic covered metal plastic plastic plastic painted metal painted metal plastic covered metal 4476.8 77.4 4.5 21.2 1.1 23.4 8.4 15.3 16.3 17.5 26.9 25.8 11.0 RJ202I213 093283 EID137047 C-8 SAMPLING PROJECT PAGE 33 OF 41 C-8 Recovery Control Room -on top of small silver box on trail to the right as you enter C-8 Recovery Control Room area -positioned approximately In the middle of the entire area on only flat surface that was dirty Roof area (see figure 2) -at west end of Monomer Control Room hvac unit on top of small box underneath of larger safety switch box -on underside of the N. Offices hvac unit Intake -on small ledge at bottom of Wax Room HVAC unit's Intake -on base of the backside (wax unit side) of the FPDryer area and clave ingredient hood exhaust -on inside ledge of north end of AC part of the Autoclave Control Room HVAC unit metal . metal metal metal metal metal metal 154.8 82.8 11.2 15.6 16.4 28.5 29.7 E1D093284 EID137048 C-8 SAMPLING PROJECT PAGE 34 OP 41 FEP (BLOG. 163) AREAS L O C A T I O N _ ......... ....... New Control Room -on top of monitor along dividing wall SURFACE plastic #3 Slab Drop -inside on small ledge to left Oven Area -on top of breathing air station 34 black box in-between Oven #2 and conveyer system painted metal painted metal -on H u e box on wall 1between Oven #2 and the old Oven Control Room top of old Oven Control Room AC unit behind Control Room in front of conveyer system painted metal painted metal -on blue *check scale* panel box in-between conveyer system and Oven #1 -on top of storage cabinets along back wall across from Oven #3 painted metal metal Warehouse -(warehouse along turnaround area) on top of box for safety glasses beside of door from turnaround area painted wood Extruder Area -on top of lockers against the wall beside of the old Extruder Control Room -on top of white exhaust vent on HVAC .w i t in southwest comer of area (to the side of doorway to hallway offices) painted metal painted metal RtSULTSfuol 1.9 18.3 2.6 4.5 7.8 4.7 6.5 26,7 15.2 13,8 1UZ021215 EID093285 EID137049 C-8 SAMPLING PROJECT PAGE 35 Of 41 Dispersion Packout area -on top of desk/storage stand inbetween the Dispersion Packout pad and wash basin metal 26.5 Dry Flake Packout area -on top of black air mask box at . painted breathing air station 18 metal 8.2 Stairwell -(in-between Dispersion Packout and Dry Flake Packout leading to second floor) on ledge halfway up stairs metal 25.5 Second Floor Polykettle Control Room -at far end (from door) of control area on top of box that houses two monitors laminated wood 6.1 Fluff area -small blue box under large blue box on wall around corner from breakroom across from stetcher painted metal 9.9 Breakroom -(across from Polykettle Control Room) on top of brown vending machine painted metal 4.1 #1 Flake Storage Hopper -at front end of Polykettle Control Room metal 83.4 ) tm im rA EID093286 EID137050 c VP ::;sJ C-8 SAMPLING PROJECT PAGE 36 OF 41 WIPE SAMPLING CONCLUSIONS/PATHSFORWARD * Homopolymers exhibited higher residual C-8 levels than FEP overall. * Wipe samples were collected well into shutdown. Once Teflon* is up and running for a while, selecting a few locations sampled in this project to see how it would compare is recommended. * Setting a routine frequency for wipe sampling is not necessary. .J IUZQ21217 EID093287 EID137051 EID137052 o n t o m \ i & 2- * m m 2 * , w o f n w u N f r lcati^ C w i A?) c-8 m e * C -B ^m m fo ie cr Pftte* 3e c*q EED093289 EID137053 6m m m inB :?3?Wt ^so^exaia 06t60aiH * ?3>W J}&7& ^.wwi/.C -c MWT 3 M JO SrM\ru&k> p a c J S tr m 6 < ( 0 ^ 4 / FIGURE 4: AVERAGE VALUES AT ROOF LOCATIONS excludes contaminated samples LOCATION N.OFFICES MONOMER CR MAX ROOM AUTOCLAVE CR HOOD EXHAUST MBiffiSl .1? .21 1.10 .96 rnm 'Wtw) 15.6 11.2 16.4 29.7 28.5 RJZ02122! I EID137055 C-8 SAMPLING PROJECT PAGE #1 OF 41 -y REFERENCES PLAYT1S, A.J., WASHINGTON Of I99S C-8 BLOOD TESTING. DuPONT, PLAYTIS. A.J.. ET. ALL. INDUSTRIAL HYGIENE FOLLOW-UP. OuPONT. WASHINGTON WORKS. 199$; DECEHBER'iS: I RJZ02222 >093292 EID137056