Document 5DKoY1DdM6qXX0BgEdzapq3M4

7 AR226-2028 ji*3g^^^i$g65#4i62.>*.v3vV^RS F C-8 SAMPLING PROJECT PAGE 1 OF 41 SUMMARY OF SPECIAL C-8 SAMPLING PROJECT Jennifer Nichols Environmental Lab LSE 9-16-97 ) zmzm\ BID093252 E ID 093252 C-8 SAMPLING PROJECT PAGE 2 OF 41 TABLE OP CONTENTS PAGE 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 CONCLUSlONS/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 EID093253 E ID 093253 C-8 SAMPLING PROJECT PAGE 3 OF 41 In response io 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 normal 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 Dines. E tt)093254 EIDO9 3 2 5 4 wmcozra C-8 SAMPLING PROJECT PAGE 4 OF 41 C-8 IN AIR MONITORING Sample locations, results and any conclus1ons/pathsforward that were determined are attached (attachment 1). Sampling was conducted using either the Oupont Alpha Z or P200A pumps with ffows 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 WW3627. Six sets of sampled tubes (206 samples total), along with sample blanks, were analyzed approximately every two weeks. Set 4, analyzed August 5, 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 Z). The focus was placed on the B-162 units because of their close proximity to the C-8 emissions stack located on 8-124 (figure I). 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 S149 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 EID 093255 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 t00cm(2). Sampling techniques were adapted from GSHA'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 WW3627. 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 air 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/hreakrooms, 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 thf* *s 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 S149 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. BJOD093256 EID 093256  ;45C-8 SAMPLING PROJECT. PAGE 6 OF 41 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 1n moles per billion (MPB), wind direction In the morning and afternoon, weather conditions for that day, and any conclusions or pathsforward that were determined. Btt>093257 EID 093257 fizozra **'-J '->* C-8 SAMPLING PROJECT PAGE 7 OF 41 DATE 07-08-97 07-17-97 08-05-97 08-08-97 C8 RECOVERY OPERATOR (TTP068/08FM) RESULT _ H M ... <0.01 0.12 0.06 <0.01 WIND MQRN/AFTER NE/NE NE/NE S,$/$,$ S,SW/SW WEATHER CLEAR CLEAR CLEAR CLEAR CONCLUSION/PATHFGRWARD * ADDITIONAL SAMPLING NEEDED * VARY PERSONNEL TESTED ssiizozro HD093258 EID 093258 C-8 SAMPLING PROJECT PAGE 3 OF 41 DATE 07-21-97 07-22-97 07-23-97 07-24-97 07-2S-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 MONOMER CONTROL ROOM (TM01001 RESULT MPB <0.01 <0.01 0.02 <0.01 0.02 0.05 (0.01) (<0.01) <0.01 (^"`o n r ' <0.01 <0.01 <0.01 <0.01 NINO M0R8/AFTER . NE/NE SW/NW.S $/W S/S - S/l N/N,S S/N S/N.NW S/S,SE s ,se/m T ^ > S/N,HE S.SW/SH S.SE/E S/SE WEATHER CLEAR CLOUDY CLOUDY RAIN CLOUDY CLOUDY CLEAR CLEAR STORMY CLEAR CLEAR CLEAR RAIN RAIN CONCLUSIOH/PATHFQRWARD * RESULTS CONSISTENT * NO FURTHER SAMPLING NEEDED Gsuzozm EED093259 EID 093259 C-8 SAMPLING PROJECT PAGE 9 OF 41 GRANULAR POLYKETTLE CONTROL ROOM fTTF060I 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 08-12-37 08-13-97 RESULT HPB <0.01 1.91 <0.01 o.u <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 (X.80) (<0.01) <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 WIND MORN/AFTER NE/NE E/NW S/SW S/S 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/SE WEATHER CLEAR RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY CLOUDY CLEAR CLEAR STORMY CLEAR CLEAR CLEAR RAIN RAIN t CQNCLUSIQN/PATHFORWARD * TWO HIGH RESULT INDICATE MORE SAMPLING NEEDED. * ONE HIGH RESULT WHILE RAINING, AND ONE HIGH RESULT WHILE CLEAR, INDICATES WEATHER NOT A FACTOR. ^7 EED093260 (16117/170! EID 093260 C-8 SAMPLING PROJECT PAGE IQ Of 41 FP&D A U T O C U V E 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 08-12-9? 08-13-97 RESULT MPB <0.01 <0.01 0.05 <0.01 <0.01 0.02 0.02 0.04 0.01 (<0.0!) (<0.01) * <0.01 . <0.01 0.02 . <0.01 <0.01 <0.01 HIND HORN/AFTER E/NH S/SH S/S NE/NE $H/NH,S S/H S/S S/E M/N,S S/N S/N.NH S/S,SE S.SE/S,SE S/N,NE S.SH/SH S,SE/E S/SE HEATHER RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY CLOUDY CLEAR CLEAR STORMY CLEAR CLEAR CLEAR RAIN RAIN CONCLUSQN/PATHFORWARP * RESULTS CONSISTENT * NO MORE SAMPLING NECESSARY EDD093261 I6TIZ0Zf>I EID 093261 C-8 SAMPLING PROJECT PAGE 11 OF 41 FINE POWDER FINISHING (DRYER) CONTROL ROOM (TTF03n DATE 07-09-97 07-10-97 07-11-97 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 07-30-97 07-31-97 08-04-97 08-05-97 08-06-97 08-07-97 08-08-97 08-12-97 08-13-9# RESULT MPB <0.01 0.01 0.06 0.76 0.02 0.33 0.05 0.08 (0.11) (<0.01) <0.01 <0.01 0.03 0.04 <0.01 <0.01 <0.01 HIND MORN/AFTER E/NH S/SH S/S NE/NE SH/NK,S S/H S/S S/E S/S.SH S/N.NH S/S,SE S,SE/S,$ ` S/S,SE S/N.NE S,SH/SM S.SE/E S/SE HEATHER RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY CLEAR CLEAR STORMY CLEAR CLEAR CLEAR CLEAR RAIN RAIN CONCLUSION/PATHFORWARD * TWO HIGH RESULTS INDICATE MORE SAMPLING NEEDED BID093262 1UZ021I92 E ID 093262 C-8 SAMPLING PROJECT PAGE 12 OF 41 FINE POWDER FINISHING DRYER OPERATOR tTTF102/0aPn DATE 07-14-97 07-14-97 07-2S-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 HPB <><0.01 0.26 . 0.18 0.1$ 0.06 0.06 <0,01 * <0,01 * * ROUTINE WORK, DID NOT CLEAN DRYER CONCLUSION/PATHFORMARD * INCIDENT REPORT FOR 7/14 RESPONSIBLE FOR ABOVE TLV RESULT * PUCE HIGH PRIORITY ON FOLLOW-UP * ADDITIONAL SAMPLING NEEDED WHEN DRYER IS BEING CLEANED EID093263 Cfyff*WyfA EID 093263 C-8 SAMPLING PROJECT PAGE 13 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 08-04-97 WAX ROOM (TTF028) RESULT MPB 0.06 0.37 0.40 0.42 0.28 0.52 0.43 0.36 0.41 WIND MORN/AFTER E/NW S/SW S/S NE/NI $W/NW,$ S/W S/S S/E S/S.SE WEATHER RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY STORMY CQHCLUSIOH/PATHFQRWARD * CONSISTENT RESULTS * GIVE ROUTINE SAMPLING FREQUENCY * SUGGEST ADMINISTRATIVE CONTROL LIMITING TIME INSIDE BID093264 E ID 093264 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 07-2S-97 07-30-97 08-04-97 08-07-97 B162 2ND LEVEL OUTSIDE SMOKING AREA fTM00481 RESULT NP8 .... 0.43 0.26 0.32 0.17 0.15 0.23 0.22 0.23 (<0.01) 0.05 0.06 WIND MORM/AETER_____ . E/NW S/SH S/$ NE/NE SH/NV.S S/U s/s S/E S/S$N S/S.SE S/N.NE weather RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY CLEAR STORMY CLEAR CONCLUSION/PATHPORHARO * RESULTS CONSISTENTLY CLOSE TO ACTION LEVEL . * MOVING SMOKING AREA SUGGESTED NO ADDITIONAL SAMPLING NEEDED Cf rr B m 093265 EID 093265 C-8 SAMPLING PROJECT PAGE IS OP 41 V N. OFFICES ROOF HVAC (TMQ045) DATE 07-09-97 07-10-97 07-11-97 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 RESULT MPB 0.10 . `SPILLED' 0.13 0.15 0.07 0.11 0.14 (0.22) WINO NORM/AFTER E/NN S/SW S/S NE/NE SW/NW,S S/W S/S S/E WEATHER RAIN CLEAR CLEAR CLEAR CLOUDY CLOUDY RAIN CLOUDY ) C0NCLUSI0N/PA7HF0RMARD * CONSISTENT RESULTS * DO FOLLOW-UP AIR SAMPLING IN OFFICE IN N. HALLWAY 1UZ2J196 EID093266 , **') EID 093266 C-8 SAMPLING PROJECT PAGE 16 OF 41 FP&D AUTOCLAVE CONTROL ROOM INTAKE (TM004S1 DATE 07-22-97 07-23-97 07-24-97 07-25-97 07-29-97 08-05-97 RESULT MPB 0.19 0.51 0.96 2.90(0.94) 0.30 WIND MORN/AFTER SW/NW.S S/W S/S S/ES/N S.SE/S.SE * WEATHER CLOUDY CLOUDY RAIN CLOUDY CLEAR CLEAR CONCIUSION/PATHFORHARD * HIGH RESULTS. * RESULTS SUPPORT AREA'S CONTINUING EFFORTS TO REOUCE STACK EMISSIONS * FOLLOW-UP SAMPLING CAMPAIGN AFTER REMEDIATION M l irn7pv BED093267 E ID 093267 C-8 SAMPLING PROJECT PAGE 17 OF 41 MAX ROOM HVAC INTAKE ITM0045) DATE 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 07-29-97 08-05-97 RESULT MPB 0.25 1.21 1.08 2.13 0.69 2.17 0.19 MIND. HOm/AFTER NE/NE sw/n h ,s S/M S/S S/E S/N SSE/$,SE HEATHER CLEAR CLOUDY CLOUDY RAIN CLOUDY CLEAR CLEAR CONCLUSIQN/PATHFORMARD * HIGH RESULTS * RESULTS SUPPORT AREA'S CONTINUING EFFORTS TO REDUCE STACK EMISSIONS * SAMPLING CAMPAIGN AFTER REMEDIATION MlltYZr BID093268 E ID 093268 4 C-8 SAMPLING PROJECT PAGE 18 OF 41 '' . MONOMER CONTROL ROOM HVAG INTAKE (TM004S) DATE 07-21-97 07-22-97 07-23-97 07-24-97 07-25-97 07-29-97 08-05-97 "* T 0.11 0.17 0.16 0.39 0.34 (0.45) 0.07 WIND MQRN/AFTER WEATHER NE/NE CLEAR SW/NW.S CLOUDY S/W . CLOUDY S/S RAIN S/ CLOUDY S/N CLEAR S.SE/S.SE CLEAR CQNCLUSIQM/PATH * COMPARING THE CONTROL ROOM RESULTS TO THESE RESULTS, SHOWS THE HVAC FILTERS ARE SERVING A NECESSARY FUNCTION * FOLLOW-UP SAMPLING CAMPAIGN AFTER REMEDIATION RJZ02II99 093269 EID 093269 C-8 SAMPLING PROJECT PAGE 19 OF 41 HEW FEP CONTROL ROOM (TCP280) RESULT WIND DATE___________ HPB__________ HORH/AFTER_________ WEATHER 07-14-97 0.03 NE/NE CLEAR 07-16-97 0.02 NE/E CLEAR 07-17-97 0.04 NE/NE CLEAR 07-18-97 0.01 NE/NE CLEAR 07-28-97 0.04 H/N.S CLOUDY 07-29-97 (<0.01) S/N CLEAR 07-30-97 (0.01) S/S.SW CLEAR 07-31-97 (<0.01) S/N,NW CLEAR 08-04-97 <0.01 S/S,SE STORMY 08-06-97 08-07-97 <0.01 <0.01 S/S.SE S/N.NE CLEAR CLEAR 08-08-97 <0.01 * S.SW/SW CLEAR 08-12-97 <0.01 S.SE/E RAIN 08-13-97 <0.01 S/SE RAIN EONCLUSION/PATHFORUARO * RESULTS CONSISTENT * NO FURTHER TESTING NECESSARY - BID093270 .ift\ %t E ID 093270 C-8 SAMPLING PROJECT PAGE EO OF 41 FEP EXTRUDER CONTROL ROOM (TCP2681 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 MPB 0.05 0.04 0.04 0.04 0.45 (<0.Q1) (<0.01) (<0.01) <0.01 <0.01 <0.01 MIND KORN/AFTER NE/NE NE/E NE/NE NE/NE N/N,S $/N s/s.sw S/N.NW S/S.SE S/S.SE S.SW/SW WEATHER CLEAR CLEAR CLEAR CLEAR CLOUDY CLEAR CLEAR CLEAR STORMY CLEAR CLEAR CQNCLUSION/PATHFORWARD * SOME HIGH RESULTS. HOWEVER CONTROL ROOM NO LONGER EXISTS (LOCATED IN NEW CR) * NO FURTHER TESTING NEEDED fOZITOTH EID093271 EID 093271 C-8 SAMPLING PROJECT PAGE 21 OF 41 FIP OVEN CONTROL ROOM fTCP2311 POSITON 1 IS EAST-LARGE CONTROL PANEL DESK POSITON 2 IS WEST-SMALL CONTROL PANEL DESK DATE 07-1 4 -9 7 07-1 6 - 9 7 07-17-97 0 7 -1 8 - 9 7 07-2 8 -9 7 07-2 9 -9 7 07-3 0 -9 7 07-3 1 -9 7 08-0 4 -9 7 08-0 6 -9 7 08-0 7 -9 7 08-0 8 -9 7 POSITION 1 MPB 0 .0 9 0 .0 7 4.31 0 .0 6 0 .1 9 (0 .17) (0 .12) (0 .0 3 ) 0 .0 2 0 .0 5 0 .0 4 <0 .0 1 POSITION 2 MPB 0.18 0 .1 6 0 .0 8 1.59 0 .0 7 (0 .25) (<0 .01) (0 .07) 0.03 0.02 SPILLED 0.23 WINO HORN/AFTER NE/NE NE/E NE/NE NE/NE N/N,$ S/N . S/S.SW S/NNW 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 CONCLUSIOM/PATHFQRWARD * SOME HIGH RESULTS, HOWEVER CONTROL ROOM <- HAS BEEN MOVED TO NEW CONTROL ROOM ' * NO FURTHER TESTING NEEDED E093272 E ID 093272 C-8 SAMPLING PROJECT PAGE 22 OF 41 FEP POLYKETTLE CONTROL ROOM ITCP21B1 POSITON 1 IS CONTROL PANEL DESK POSITON 2 IS WET FINISH DESK DATE -07 1 4 -9 7 -07 1 6 -9 7 -07 1 7 -9 7 -07 18-97 -07 2 8 -9 7 -07 2 9 -9 7 -07 3 0 -9 7 -07 3 1 -9 7 -08 0 4 -9 7 -08 0 6 -9 7 -08 0 7 -9 7 -08 0 8 -9 7 -08 1 2 -9 7 -08 13-97 POSITION 1 MPB 0 .0 5 <0 .0 1 <0 .0 1 <0 .0 1 <0 .0 1 Q(0 .29) (<0 . 1) (<0 . 01) 0 .4 8 <0 .0 1 0.23 0.01 <0 .0 1 <0 .0 1 POSITION 2 MPB <0 .0 1 <0 ,0 1 0.01 0.01 <0 .0 1 (0 .03) (0 . 01) (0 . 04) 0.12 <0 .0 1 <0 .0 1 <0 .0 1 <0 .0 1 <0 .0 1 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,SE Ss/. Nsw,N/sEw S.SE/E S/S WEATHER CLEAR CLEAR CLEAR CLEAR CLOUDY CLEAR CLEAR CLEAR STORMY CLEAR CLEAR CLEAR RAIN RAIN CQNCLOSION/PATHFORWARD * RESULTS NOT CONSISTENT * POSSIBLY MORE SAMPLING, BUT LOWER PRIORITY IUZ021203 BID093273 EID 093273 C-8 SAMPLING PROJECT PAGE 23 OP 41 #3 SLAB DROP WHILE IN USE TCP237) DATE 07-28-97 08-08-97 RESULT MPB 0.37 0.25 NOTES ONLY RAN PART OF SAMPLE TIME RAN ENTIRE SAMPLE TIME CONCLUSION/PATBFRWARD * CONSISTENT RESULTS * MORE SAMPLING NECESSARY EEJ093274 EXD093274 C-8 SAMPLING PROJECT PAGE 24 OF 41 SUMMARY OF PATHFQRWARD ITEMS * ?C2H2AiNIG!I2N2GAFcIiLT?ERSS.IN6TTMHiE KFOURE0SA0MNPLECS~8TARKEECNOVWEERRYEOOPNERTAHTEOR (08PM) WHILE SAME OPERATOR. EACH ARIA HAS OPERATORS WHO CHANGE FILTERS. TESTING ADDITIONAL PERSONNEL/FILTER COMBINATIONS RECOMMENDED. * m HIGH RESULTS mhice MIXED IN WITH LOW thU LI n c lu d E ` TI0NAL SAHPUMG IH TM 0SE AREAS IS n e e d e d . GRANULAR POLYKETTLE CONTROL ROOM (TTF060) FINE POWDER FINISHING (DRYER) CONTROL ROOM (TTF031) FIP POLYKETTLE CONTROL ROOM (TCP2I5)-low priority * ?! K5fL(TTF0Z8> AS SHOWN HIGH RESULTS. THIS IS CONFIRMED IN THAT EIGHT OF THE NINE SAMPLES IN THIS STUDY WERE OVER THE ACTION LEVEL. ADMINISTRATIVE f f i o L S A R E SUGGESTE0 ON SAMPLINGF TIME SPEMT IHSIDE TM E R00M- RaiEM FREQUENCY FOR ROUTINE * J TM i L STM 2 ^ iTC?539..IS A DIFFICULT SAMPLE TO GET DUE TO ITS IT RAO BEEN TARGETED IN THE PAST AS A TROUBLE AREA AND THESE RESULTS CONFIRM THERE IS APPRECIABLE LEVELS. IT WAS R2 OmW o ^^KT2WMHrEoNRTTHiEFPSROSD<U!CiTTSiHi1lL00T!O!Rl S81E0S0T AiRiEmRTUNONISNAGMPALSE TTHHEIYS ALROECATFIIONNE CONDITIONS*0 RUN FAST* ADDITIONAL SAMPLING IS NEEDED DURING THESE * THCJ-IBZ SECOND LEVEL SMOKING AREA (TM0048) SHOWED CONSISTENT TMCUfS CLOSE TO THE ACTION LEVEL (0.28 MPB) INDICATING THE NECESSITY TO FIND AN ALTERNATE SMOKING AREA. * OMCCONCiRR IS THE FINE POWDER FINISHING DRYER OPERATOR (08PI) WHILE CLEANING THE DRYERS. ONE RESULT WAS HIGH (2.4 MPB) WHILE CLEANING DRYER #3. DRYER #3 CONTAINED A BELT (SHOULD MINIMIZE S K 8 # J SSONRC,O2NST!A,IINHT^HEABaELT.USE0IN0CNID0ERNTYERREPORT.SFIDNLC9E70S0H1U5T.MWFNO,R TM f "H , ? E S U LJ INDICATED MECHANICAL INTEGRITY MAY HAVE BEEN RFJJONSIBIE. THIS WAS THE ONLY SAMPLE TAKEN ON THE #3 DRYER, PRIORITY IS PLACED ON THIS FOLLOTMW-IUSP.UHIT SH0ULD 8E DONE. A HIGH * S y e L i S l S8EM0NSrrRATE A NEED FOR BETTER CONTROLS ON THE C-8 iIcS?ft^ n ? l2KSJ WlD/0R LIMITING THE TIME SPENT (WITHOUT A R^FIRATOR) ON THE ROOF. LOCATIONS CLOSEST TO THE STACK SHOWED i"rwJ(OIJtiIiJfO*ErEiFcFcErCrTHOocF TMTH?ESEIMTI0SSTIOHNE.S0AUSTMST(AFTIEGDURBEEF4O)RED,EMOONNSSTERVAETRIANLG A 1 m 0M TM E ROOF I WITNESSED THE EMISSION LOOPING EFFECT (DEPENDING ON THE WEATHER). FOLLOW-UP SAMPLING CAMPAIGN SUGGESTED AFTER REMEDIATION. EID093275 EID 093275 C-8 SAMPLING PROJECT PAGE 25 OF 41 f ^ f U N S BROUGHT TO OUR ATTENTION BUT NOT ACCOMPLISHED IN THIS JNCWDED THE jog 90/50 PACKOUT BY THE WET FINISH OPERATOR. THIS... . IS INFREOJENTLY PRODUCED MAKING SAMPLES DIFFICULT TO GET. FUTURE SAMPLES FOR C-8 AND NUISANCE DUST ARE NEEDED. SPECIAL ATT|NTION 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 WAS NO DRIP PAN UNDER THE TANK'S SPIGOT AND ONE SHOULD 8E 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 W ^ U T I I W ON THE FLOOR. THIS IS A HIGH TRAFFIC ARIA AND IT WOULD BE EASY TO TRACK DRIED C-8 INTO OFFICES, CONTROL ROOMS, ETC. NOT ONLY IS Hf CATCH BUCKET VERY IMPORTANT, BUT IT IS RECOMMENDED TO FIX THE SPIGOT TO REMEDIATE THE DRIP. EIDQ93276 E ID 093276 0fl717i>vni C-8 SAMPLING PROJECT PAGE 26 OF 41 ATTACHMENT 2: INVESTIGATION OF HVAC SYSTEMS .. T M * attachment contains information on HVAC systems supplying the control rooms and other pertinent locations sampled. The Information was obtained by interviewing various Teflon* TM { no ,U10W,, single person has a thorough knowledge of the ). E1DQ93277 E ID 093277 C-8 SAMPLING PROJECT PAGE 27 OF 41 GRANULAR POLYKETTLE CONTROL ROOM (TTF060) , THIS CR HAS AN INTERNAL UNIT TO THE RIGHT AS YOU ENTER THE BOOR, AS YOU PASS INTO THE COMPUTER AREA YOU CAN SEE A VINT OF MAKE-UP AIR WHICH WAS TRACED INTO THE WAX ROOM VENTILATION SYSTEM. PP&P AUTOCLAVE CONTROL ROOM (TTFQlO) THIS CR'S SYSTEM IS LOCATED ON THE ROOF (FIG. I). THE INTAKE IS LOCATED ON TOP OF THE RETURN FAN SYSTEM (AC UNIT IS CONNECTED TO FINE POWDER FINISHING DRYER CONTROL ROOM TTF0311 THIS CR$ 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 SHALL CR WITH DOORS ON BOTH SIDES WHICH ARE FREQUENTLY USED. WAX ROOM (TTF02B) . THERE IS AN OUTSIDE DOOR 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 SAME 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). ozjzn/m EED093278 EID 093278 C-8 SAMPLING PROJECT PAGE 28 OF 41 MONOMER CONTROL ROOM ITHOlOOl SJERE IS A ROOF UNIT MARKED OCR AND COMPUTER #1 UNIT. A SECOND UMIT, NEST 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 LEFT.UMT!HEiRiEc II3SEA*CS"H8ALL VENTIS(12* X 12D")IRELCOTCLAYTEUDPABAONVDEABLLOIWTITNLGE K f P J ? THf H|N*S RESTROOM IN THE NORTH OFFICES HALLWAY (1ST ON RIGHT). IT IS SUPPLIED BY THE N. OFFICES ROOF ifVAC NEW FEP CONTROL ROOM ITCP280) THIS CR HAS AN INTERNAL UNIT WITH NO MAKE-UP AIR. ON A SAMPLE HOTED A PAINT FUME SHELL INSIDE THE CR. THE ODOR WAS NOT PRESENT JUST OUTSIDE THE CR IN THE EXTRUSION AREA. FEP EXTRUDER CONTROL ROOM (TCP268) THIS ROOM HAS TWO WINDOW UNITS THAT COMPRISE ITS SYSTEM. EED093279 EID 093279 Art717/r/ni C-8 SAMPLING PROJECT PAGE 29 OF 41 FSP OVEN CONTROL ROOM (TCP23n H W C W I T IS LOCATED ON THE OUTSIDE OF THE NORTH HALL OF THE CONTROL ROOM. IT IS BESIDE OF THE NUMBER TWO OVEN ENTRANCE AND SURROUNDED BY'THE CONVEYER SYSTEM THAT CARRIES THE POWDER PRODUCT INTO THE OVEN (AREA GETS 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 TTCP2151 CONTROL ROOM HAS A ROOF UNIT, LOCATION IS UNDETERMINED AT THIS POINT. * MOSVSIfNLGB?ISNiTAOTT!HIELFNIELW0CVOENNTCRORLmROOTMHDEURFIENPG SHUTDOWN.CR WTIHLELEBXETRUDER CONTROL ROOM WILL BE COMPLETELY REMOVED AND TOE OVEN CONTROL ROOM WILL REMAIN TO HOUSE COMPUTER SYSTEMS. 093280 E ID 093280 RJZ02J2I0 ') . C-8 SAMPLING PROJECT PAGE 30 OF 41 ATTACHMENT 3; SURFACE WIPE SAMPLING RESULTS This attachment contains charts for samples in Homopolymers and Fop areas. Information on each chart Includes: a description of the location, the type of surface that was wiped, and the results reported 1n micrograms (ug). . RJZQ212 EID093281 EIDO9 3 2 8 1 C-8 SAMPLING PROJECT PAGE 31 OF 41 HOHOPOLYMER (BIDS 162) AREAS 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 (Wax 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 * painted metal Autoclave Control Room -on top of refrigerator 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(ua) 62.2 40.1 310.2 36.8 124.8 29.3 27.2 31.1 23.2 48.3 28.6 RJZ021212 EID093282 EXD093282 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 -on top of monitor (under vent) 1n computer/monitor room adjacent to control 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 meta! plastic covered metal plastic plastic plastic painted metal painted metal plastic covered metal 4475.8 77.4 4.5 21.2 1.1 23.4 8.4 15.3 18.3 17.5 26.9 25.8 13.0 IUZ0212I3 BR>093283 E ID 093283 C-8 SAMPLING PROJECT PAGE 33 OF 41 C-8 Recovery Control Room -on top of small silver box on wall 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 Max 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 - f r f \ !t BID093284 V* E ID 093284 C-8 SAMPLING PROJECT PAGE 34 OF 41 FEP (BLDG. 163) AREAS LOCATION New Control Room -on top of monitor along dividing wall #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 syitem -on blue box on wall inbetween Oven #z and the old Oven Control Room -on top of old Oven Control Room AC unit behind Control Room in front of conveyer system -on blue check scale panel box in-between conveyer system and Oven #1 of storage cabinets along back wall across from Oven #3 warehouse . -(warehouse along turnaround area) nof? doLor0firobom\tufronrar*o*u*n*d*aSreuasses beside Extruder Area -on top of lockers against the wall beside of the old Extruder Control Room "ilLi0? of exhaust vent on HVAC * V* l S0l|thwest corner of area (to the side of doorway to hallway office: SURFACE ' plastic painted metal painted metal painted metal painted metal painted metal metal painted wood painted metal painted metal RESULTSfuol 1.9 18.3 2.6 4,5 7,8 4.7 6.5 26.7 15.2 13.8 RJZ021215 E1D093285 EID 093285 C-8 SAMPLING PROJECT PAGE 35 OP 41 Dispersion Packout area -on top of desk/storage stand Inbetween the Dispersion Packout pad and wash basin Dry Flake Packout area -on top of M a c k air mask box at breathing air station 18 . Stairwell . -(in-between Dispersion Packout and Dry Flake Packout leading to second floor) on ledge halfway up stairs Second Floor Polykettie Control Room -at far end (from door) of control area on top of box that houses two monitors Fluff area -small blue box under large blue box on wall around corner from breakroom across from stetcher Breakroom -(across from Polykettie Control Room) on top of brown vending machine #1 Flake Storage Hopper -at IVont end of Polykettie Control Room metal painted metal metal laminated wood painted metal painted metal metal . 26,5 8,2 25,5 6.1 9.9 4.1 83.4 nT--r/fWO! EID093286 EID 093286 C-8 SAMPLING PROJECT PAGE 36 OF 41 WIPE SAMPLING CONCLUSIOHS/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. ;' EID093287 EID 093287 KJZ02I2I7 Outo luvse. m e e 3 fer EIDO9 3 2 8 8 zsyi/2.orno &S 5wpuwb Uooecr f e t 3b & m E ID 093289 6lO?OZra Filit2- T O F W ^ u w er UJC47T/V3 (WtA?) A B MMHIUC, PXc j c c 5^ Furness. PERcmlecmeMofweesmptes EID093290 EID 093290  C-d SrWIrUtUi PtiCJECr " *tO or <i FIGURE 4; AVERAGE VALUES AT ROOF LOCATIONS excludes contaminated samples LOCATION N.OFFICES MONQHER CR VAX ROOM AUTOCLAVE CR HOOD EXHAUST AIRfMPBl .17 .21 1.10 .96 MMiM 15.6 11.2 16.4 29.7 28.5 Ditto w v & z . ,'s/rt/tx/m.meA, 8lu>t. M f 'oGmS**mc* w- 912# WjRg IS4, \At* 041* T3 =i^> L07 ^V/iPe z<?/* J AIR. 0*11 M /CiSoSa3, ,, Q ----- 1 4--W-I-F-6J-0-S O EDD093291 RJZG21221 EID 093291 C-B SAMPLING PROJECT PAGE 41 OF 41 REFERENCES W0RKS; i996tPLAYTIS. A.J.. SUMMARY OF 1995 C-8 BLOOD TESTING. DuPONT. WASHINGTON MAY 7.------ ------ - PLAYTIS. A.J.. ET. ALL. INDUSTRIAL HYGIENE FOLLOW-UP. OuPONT, WASHINGTON WORKS. l99E, "DECEHBER 'Iff.--- !------ RJZ021222 ED5093292 EID 093292