Document 4aRd8LeqO7zDgdbZB1kamj5bx

CAMBRIDGE To: J. Ashworth/Phoenix From: L. K. Park Date: 28 August 1985 cc: P. M. Connor F. W. Eaton T. E. Winkel/Santa Ana J. W. Wolter W. R. Wright Subject: Industrial Hygiene Survey On 1 August 1985 I conducted an Industrial Hygiene Survey at the Phoenix plant. The results are discussed below. Air Sampling - Fiber The air sampling results indicate that employee asbestos exposure is below the OSHA Permissible Exposure Limit (PEL) of 2.0 fibers/cc for an 8-hour Time Weighted Average (TWA). Employee Job Ore 8-Hour TWA Carroll Fitchett Dean Bailey Kevin Jacobson Model A Bagger/Furnace Operator Maintenance/Forklift Driver D-18 Bagger/Furnace Operator L-2 L-2, L-3 L-3 0.164 0.017 0.029 The results of the engineering samples are also included. They are all low except for the product end of the Model 'A' stoner (1.27 fibers/cc), the D-18 baghouse drop (1.00 fibers/cc), and the Model 'A' wasterock hopper (1.00 fibers/cc). For the Model 'A' stoner, I recommend that the product side stoner flaps and exhaust ventilation pickups be checked. For the D-18 baghouse drop, I noticed that the 2 piece wooden lids (encompassing the circular structure of the drop) did not completely cover the entire drop. In addition, the lids did not completely encompass the circular doughnut shaped structure of the drop. However, I was told that new stainless steel lids were ordered to correct this existing problem. For the Model 'A' wasterock hopper, I recoimtend that the ventilation and flaps be thoroughly checked and that you make sure the hopper is properly aligned beneath the cover. Air Sampling - Total Dust The results of the personnel total dust sampling are below the American Conference of Governmental Industrial Hygienists (ACGIH) recommended Threshold Limit Value (TLV) and Grace Internal Limit (GIL) of 10 mg/nr for an 8-hour TWA. 10001179 J. Ashworth/Phoenix -2- 28 August 1985 Employee Mike Beaulieu Steve Baldenegro Job Monokote Mixer Monokote Bagger 8-Hour TWA 2.806 mg/m~ 3.439 mg/nr Noise Monitoring Both employee noise dosimetry and area sound level meter readings were done at Phoenix. The results of the personnel and area noise dosimetry are indicated below and on the attached sheet. Employee Job_________ Kevin Jacobson D-18 Bagger/Operator Mike Beaulieu Monokote Mixer/Bagger 8-Hour TWA (dBA) 80 dB Threshold 90 dB Threshold SO SO 90.2 86.6 The noise monitoring was done using both 80 dBA and 90 dBA threshold levels. An overexposure ( 85 dBA) with the 80 dBA threshold signals the need for a Hearing Conservation Program to be in effect, while an over exposure ( 90 dBA) with the 90 dBA threshold requires mandatory hearing protection in compliance with 0SHA regulations. Both monitored employees were above the 0SHA "Action Level" of 85 dBA for an 8-hour TWA. Therefore, your existing Hearing Conservation Program must remain in effect for plant employees. This means that hearing protection is to be made available to the employees; however, they are not required to wear the protection. Also, annual hearing tests on all employees are required. Safety Survey I have no recommendations at this time. LKP/al Attachments K Lawrence K. Park P009 10001180 Location: Phoenix, Arizona Date: July 31, 1985 Operator: Lawrence K. Park Sound Level Meter Measurements Location Forklift driver (lifting product) Monokote mixing station D-18 bagging station Base of D-18 furnace Door - Q.C. room Base of Model'A' furnace Model 'A' bagging station Distance (ft) At operator's ear At operator's ear At operator's ear 3 ft At operator's ear At operator's ear At operator's ear dBA 86 - 88 89.0 - 89.5 84.0 - 86.0 92.7 81.0 - 82.0 90.5 - 91.0 84.5 Instrument Used: DuPont MK-2 dosimeter Calibrated with DuPont Acoustical Calibrator #20125 to 113 .9 dB at 114.0 dB level. P009 10001181 GRADE NOISE DOSIMETRY RECORD II Health, Safety 6 Toxicology Plant Location P>jreNlY; Ag/ZOift Date AucpJbY I, I If5_____________ Measurements by LflgftV \C ffagK EMPLOYEE NAME SOC. SEC. HO. JOB DESCRIPTION n ]&Cbt>Scrt 53Mf'W PIi'IGl BcauJict/ PlenoCofe f*Unj\c6e^ PROXECIIVE EQUIP. DOSIMETER NO. CALIBRATION pop - POST 0135*16 ......LIW&.33___..... .. KIN. IN WORKDAY TOTAL BREAK MIN. DOSIMETER ON ---- OFF TOTAL TIME a)D0SE \ (dB)svr. fJ>D0SE \ <J^L avR. (dB) l MX. (dB) TIME OF L aax. 0 __ 51?2A*pA.n......... . c:a4 ftp) S i.g K.1 03,2 07.0 133,1 S!/2 !EAK L mx. (1/16 sec.) tOJ. 8-hr DOSE >TME 115 dB 151.0 6*f.t ooo 0135 T1 LLIl3l..1*?. . HP .. 0 5ttoim Fl'f(s cm csn) %0 IO,i ST/.C ft* mi H'MI w,i Y.'V/ l> 8-hr TWA (dB) 2) '8-hr TWA (dB) (SCI) (C6.V ao.v au) Equipment: DuPont MK-2 dosimeter ettings: (1) (2) threshold Level flO d8t Criterion level 32iiL Doubling Rate 5 J6ft 5 Jtfl Additional Comments fa PrUXc\ monofcefc ) lQ'*Znam'' lSr; Viet***. fcv 6fl*\ h4> Ituaji n lunch 10001182 CONFIDENTIAL CONSTRUCTION PRODUCTS DIVISION REQUEST FOR TECHNICAL SERVICE Report: lkl9*i______________ ___ CrouP: ------ CPD-Manufaeturiag-------------Date: 8/6/85 Charge No.: ___________________ Requestor: Ur<y_Par|r,-------------------Marketing or Manufacturing Approvals: Name: ---------T.-,--HamiltOB---------- -Approved: PROBLEM TITLE: Environmental Evaluation -- Air -- Fibrous Materials. SIGNIFICANCE: The evaluation of workplace air on a periodic basis is necessary to comply with the air sampling section of the OSHA Asbestos Standard. SPECIFIC OBJECTIVE: Determine fiber counts for filter media. SUGGESTED APPROACH: Phase contrast microscopy. DEADLINE (last day information will be of value): Two (2) weeks. DETAILS OF PROBLEM: Please evaluate personnel samples from Phoenix, Arizona. Sample numbers PA-1 - fA-12. Products and ores involved: L-2, L-3. ADDITIONAL COPIES: Original to Library; J. W. Wolter, H. C. Duecker, F. W. Eaton, W. R. Wright, P. M. Connor, *jrc. va**}. 10001183 REQUEST POE TECHNICAL SERVICE PAGE 2 NUMBER: 76194___________ GROUP: CPD Manufacturing ACTUAL COST: $325.00 REPORTING DATE: 8/14/85 SUMMARY AND RESULTS: Twelve personnel samples were received from Phoenix, AZ and were evaluated for their fiber content. The results are as shown on the attached Air Sampling Record Sheet. DLV/ph Attachment 10001184 I i i * ft. i tui ui X i/I o a: O O ui oc O z -j 1m Q. s 3 ^ Ob w4C> il Oab 3u MVV < 4) Hr s O. i S to X hQ-. < UI Q > U o-I o o X o ho >t" UI u <10 X I-- -I U<I X ft. o co o Pertonal Protective Equipment -/nbutfaL Ub Evaluation in 00 *4 A V* 3 3 fr >3 * 1 *5 i 1 & S *<* \1 i1)1 to 23 b* H bo CS no O Ct c\ V* 1 s- <S - Flaw Rata frr% *MB4 3 I $ !< o o c? oo ci re c*- 3" c-- 3*0- m-- o 4 ft oo ft n aO o fS- cf of si.a- VO o O o-- & -- Si UL 1- <. sr Si & ft a 6$ cyj s? o--* *# Jj-4 J ft 1 i i /> to o3- t ,t*\ Cft "Ctf o go Q o-- sr K 1 fc * fc* 1v ^ q; *c0* s S2 3& J ** N 1 Job Location and D escription 1 iU ct a a 7? | Ci MB _< 3 "5* *t V 1 fS *n "7* e JJ L J .c 5 Oo T* e E L* j S ii J J cl i C/l ? f ~r n 1 *r T v O' J 'p S avOt** jp a E $ E d IJ i J j J J i cl J f>\ Jii.1. IS ts'7 -JCt iti j^s 1 1 It 1\ ii i JB c~ iJ S3 i 1 11 cS o- i ii it i SjJ -K O 1!? i Ci h'T ^jJj2"i IjC Sjl c*~a J. ' SB 1 1 1 1 1_ <5^ g * i i 1 vr>* {r Jr Ss\1 2h5 i i b S^ iij <Jtn S* c3 ^ s1 11 1 1 1 1 ri rci \ <c lLTV 22 T tt o ET- t A ^ -c1x %tl ajJfl* 13 u ^<4S0eJ4 -S' * 1 <5 Employee Name & S ocial S ecurity No. Sample No. / I f IS fb f LLi UJ I to Q a O U UJ O' o z _l a. s < to o: < CONFIDENTIAL CONSTRUCTION PRODUCTS DIVISION REQUEST FOR TECHNICAL SERVICE Report: Croup: ~u*ns CPD Manufacturing Date: Charge No. 44-24- Requestor: Larry Park Marketing or Manufacturing Approvals: Name: T. E. Hamilton Approved: PROBLEM TITLE: Environmental Evaluation -- Air -- Fibrous Materials. SIGNIFICANCE: The evaluation of workplace air on a periodic basis is necessary to comply with the air sampling section of the OSHA Asbestos Standard. SPECIFIC OBJECTIVE: Determine fiber counts for filter media. SUGGESTED APPROACH: Phase contrast microscopy. DEADLINE (last day information will be of value): Two (2) weeks. DETAILS OF PROBLEM: Please evaluate engineering samples from Phoenix, Arizona. Sample numbers PA-20 through p/\-30 Products and ores involved: L-3, L-4, L-2. ACCEPTED BY RESEARCH DEPT. _ DATE: t/ifer ASSIGNED TO: 1?, C LfA&h - 10001187 ADDITIONAL COPIES: Original to Library; j. u. Wolter, H. C. Duecker, F. W. Eaton, W. R. Wright, P. II. Connor^ . REQUEST FOR TECHNICAL SERVICE PACE 2 NUMBER: ________ 76195 GROUP: CPD Manufacturing ACTUAL COST: $300.00 REPORTING DATE: 8/19/85 SUMMARY AND RESULTS: Eleven engineering samples were received from Phoenix, AZ and were evaluated for their fiber content. The results are as shown on the attached Air Sampling Record Sheet. DLV/ph Attachment 0. d(. Vi D. L. Vickey 10001188 \ 4 *VcM>4 a. faCl a 1*1 hIvk feI^e c c oco -Tm*J (- - 4> UJ s -*c (A O UJ X O OCl --I to H> Oo Q CC o o LU oc o X ~0 a 0 z 3 3 u U b <C b Cl Cl b 3 Ji 01 > Cl na *o < E 3 HCl 01 <bb O to O' 0_ < UJ Q > Oo _l o (J X x o H 3Nj & X z 'S ULLJ < to oo c c-- ----* E0 < a. tj UJ U) uX <0 > a. Q E <0 oC Sample No. Em ployee Name & S o c ia l S e c u rity No. Personal P rotective E q u ip m e n t CLOCK TIME ! Job L o ca tio n and D e s c rip tio n Pump No. Flow R a te lo ca l Volume Sampled Lab E valuation * 00 N\ $** > \ VK \ V 9 s 552 o H o r>l fe o o~ J% oo d O CV oO c> o o' o CV e> o r cS Cv HUm o o LO lR o N0 cvr* o no o o u~> (S LO ar- CT" ifua O rvro rr'l ** o- rt rO ">TrO s rril o Cl C ri*j o cs sic-- < <~v <--tf ro o ACb Si LO UN LH NO o UN u\ Uo3 Pf> li 1 "O 1aC* n KX <noj Jj 2 -Ll<1 p ?? A 3" *s5>cs J3-j mmtl 1 1 l a* - < VJ <c 5tr Sc-/ A'# J rbs1o 2 3 VJj eOo cS Q: ss r 0<3 i rr zr z* -- D ^ T 3 J J _C ' J u> d Z oo o-ho C" C <V0 t111111 <U*J 111 o iiiiii>iiitiiii COLj 1111 1111111111 1111111 --1111111-- 1111 *11J1t1111\ pm C0a-L*1. Oerr~ ii iiiiiiii11tl-- iiiiii1li(iiii _ o iii1iiii_iiii __;iiiiiiiiiii-- 5s rp3 11111i --il-d <3ii11-- s n* Oe 5 SZ uo rTO C *c 1 ct t A. UJ 1X1 X (/) Q c: o <_> UJ a. o Q. 2 < t/i o: < s oO' c m% c <s -- T> #- O o. OV 01 Of -- o. -- >v O HO 4o1 o 4 C* o. X a. E3 Cl. 4j a u w g b 0) oft> h. 3 7; ej i/i Q. tfl IT. 300/ Ei/ C*-* 5 H &. T O T A L DUST CONSTRUCTION PRODUCTS DIVISION REQUEST FOR TECHNICAL SERVICE Report: ~lf.l96, CrouP: CPD Manufacturing Date: ft/fi/as____________ Charge No.: 1174_______ -------Larrj'Parn.---------------Marketing or Manufacturing Approvals: Name: T. E. Hamilton Approved: PROBLEM TITLE: Environmental Evaluation -- Air -- Total Dust. SIGNIFICANCE: The evaluation of workplace air on a periodic basis is necessary to comply with the air sampling section of the OSHA Air Contaminants Standard. SPECIFIC OBJECTIVE: Determine the Total Dust on the sample and calculate the rate of deposition in mg/M . SUGGESTED APPROACH: Analytical Balance -- Filters have been pre-weighed. DEADLINE (last day information will be of value): Two (2) weeks. DETAILS OF PROBLEM: Please evaluate personnel samples from Phoenix, Arizona. Sample numbers ST-14 - ST-21. Products and ores involved: L-3. ACCEPTED BY RESEARCH DEPT.: JJj,, (ft. ASSICNED TO: A/ PiHILi. "' DATE: St/s/eC ADDITIONAL COPIES: Original to Library; J. W. Wolter, H. C. Ouecker, F. W. Eaton, W. R. Wright, P. M. Connory T'C-Yhajj CONFIDENTIAL ^ioooiipi REQUEST FOR TECHNICAL SERVICE PAGE 2 NUMBER: 76196 GROUP: CPU Manufacturing ACTUAL COST: $65.00 REPORTING DATE: 8/14/85 SUMMARY AND RESULTS: Eight personnel samples were received from Phoenix, AZ and were evaluated for their total dust content. The results are as shown on the attached Air Sampling Record Sheet. DLV/ph Attachment 10001192 hLU UJ X V) Q X O O UJ a. o z3 _i a. r> *e34 _ a. iJ V bVC WV h9 XVV < ft H Ob SC to x H0. < LU Q > O 3 o (J X o IId > h UJ u. < to i- 4 *4 ft < <-4 a UJ X ZONOLITE PLANT - INDUSTRIAL HYGIENE AUDIT Plant Location: frfQEH>XAgl7CKM Date: Jufy 3l}I \*\f5 Audited By: LflRRY fefcK AIR SAMPLING LOCATIONS: ASBESTOS (Personnel): </ Vermiculite Baggers / Furnace Operators JoiBid'A' Z Z Truck Loaders Maintenance (Clean-up) / / Other, (List) __________ TOTAL DUST: Monokote Mixer Monokote Bagger Perlite Bagger Soil Line Mixer Soil Line Bagger Other, (List) ENGINEERING SAMPLES: / Stoner (Product End)-j l+R Z Stoner (Waste End) Jfr>oda.t*A*(L-2JL-3) / Waste Rock Hopper *' * ft-ts 'BUS jlHf(HI) Bag House Waste Drop jtnmUi'WCkZ) J______ Other, (List) Unloosing <ntoo/i(L- Mofa/v NOISE MONITORING: (list job descriptions) 11 ktVin Jflfobco - D-fE Ft/rnW _____________________________ 2- ./Hifcg BCOi/liCv ~ rn*%cr\ I ^_____ 3* A'U.ii tampllnj- [)-(? furnaat Qntfl) PlfflLU V?` ROnta^ G,Cn>c*jflboo&k 4. 5. 10001194 -1- (>/) = Satisfactory Condition HEALTH SURVEILLANCE PROGRAM Pre-Employment Physicals Annual Surveillance: Chest X-ray Lung-Function Test Audiogram Health Questionnaire , Status (list) y y y y 3DKfefc/J 4> ftrvJ ____________________ PROGRAMS, PROCEDURES AND RECOROKEEPING Copy of OSHA Regulations (29CFR1910) General Safety Rules Formal Inspection Program Incident Investigation Safety Meetings First Aid Training & Equipment Written Respirator Program Respirator Training & Fitting Records Copy of Hearing Conservation Std. Hearing Conservation Training Records OSHA 200 Log (6 day up-to-date) Lockout and Tag Procedures Baghouse Entry Procedure Employee Hazard Communication Forklift Driver Training Program Asbestos Training - "Picture Perfect" Other Programs T Status (list) y y /, y / y j NteAslU&t None until t/if& / y / y / / i I 1 10001195 -2- r. PLANT WALK-THROUGH SURVEY: ENGINEERING CONTROLS Waste Rock Hoppers Stoner Flaps Baghouse Waste Drop Bag Waste Compactor Monokote Mixing Ventilation General & Miscellaneous Ventilation {J) - Satisfactory Condition ~7 Status (list) Pihjl t*r*rar& / J Rw-ot Su.Ctr*m014s,*!. / / si GENERAL CONDITIONS Employee Work Practices Proper Respirator Use Personal Protective Equipment Use Plant Housekeeping Forklift Trucks Truck Wheel Chocks & Dock Plates Machine Guards and Railings Ladders Fire Extinguishers Battery Charging Stations Electrical Cords Labeled Electrical Panels Storage & Handling of Flammables Warehouse Storage (Pallets) Stoner Deck Conditions Secured Compressed Gas Cylinders v/ y y y v/ y / / v/ / y / / y / y Status (list) Comments: Tlu h'df fct -H-y D-lfjfpodLtfl bojlttfut. did CwryfcTItj cd*Kt ckp. i>'di _OftWd % IkiS jvt.Ur/*___________________I______________________________________________________ T)wAi k qWj a (ri inch gpp. K Lood od itt y&olLq^aeo..___________________________ ______ _ Signature 0U.J Sh. ^QUtstfr^u, `jC. 10001196 j | )/), l , I APR 91984 McGill f University School of Occupational Health Ecole de Santa au Travail Charles Meredith House (514) 392-4568 March 30th 1984 Mr. H.A. Eschenback Health, Safety and Toxicology Department W.R. Grace & Co. 62 Whittemore Avenue Cambridge, Mass. 02140 U.S.A. Dear Harry, I have recently spent a few days with Dr Chris Wagner from Cardiff and had the opportunity of talking to him about tremolite. I mentioned the report you sent to me by John Davis from Edinburgh on Russian vermiculite and the reference in it to further studies in Cardiff. Chris Wagner tells me that the only publication or report from his group is the one attached. You will see that this is rather inconclusive. The fact remains, however, that he personally feels that the contribution to disease of tremolite in certain circumstances may be very important and he is currently trying to carry out and promote research in this field. In our studies in Quebec of the chrysotile mines, we have wondered for some time whether the tremolite component, although very small (about 1%), might not produce more than its share of cancer. I may have told you that at autopsy, both in chrysotile miners and in chrysotile factory workers, tremolite fibres are as frequently found in lung tissue as chrysotile. We, too, are thinking of ways in which we could investigate this problem further. I don't suppose any of this helps you very much or is very reassuring; tremolite occurs in such a variety of forms that clearly no simple conclusion can be reached about its effects. The results obtained at Libby will be important but cannot be readily extrapolated to other situations. Let me know if there are any other points you would like me to look into. Sincerely, (cu/TT . J. Corbett McDonald, MD FRCP Professor JCMcDrjb Postal address: 1130 Pine Avenue West, Montreal, PQ, Canada H3A 1 A3 10001674