Document 5DQN9VQrzNa1nRVm1J0o7NgO8

jii1tw tV i" ^fUFfTTf'WR^ PLAINTIFF'S EXHIBIT DUP-1400 Deeenher 211 1967 OC: B. B. ___ I. B. IlfM J. C. 1m| K. X. Ami V. C. Wearer C. j. Lownwim, Jr. X. J. - TO: T. I. 1UCXH noKt x. x. xxvm faL dost xxpofm - m xxbvltb jj policy ixcowimatiow We recently --ooladod the MkutM daet wmy id&eh MS conducted at Ohachero Works Construction erwr the post roor. The curvey mbs performed under tbs guidance of A. L. Uwch, No^lool Bcctlce, Choahero Works Float. Sosulto of the osrlroBCMstsl survey skew that anpieyees sro being exposed to o tetsl dust particle oouat that does not oasood 1 per ooat of tas current Threshold Lialt Taluo (TIT) established for sakeotic dust by tbs Aasrlooa Caafereaee of Gorori--to 1 Isdustrlsl fygloalsts. Those results wore obtained la shops shore designed reatllatiea arstoas acre Installed on all power equlpaeat sad o controlled eloonllaoss progrsa existed. The total particle count Is osar orders of aagnitude less than the eetahllahed TLT of 5,000,000 particles per eubie feet for ashestes dust. The acquired results would Indicate that presently we do net. hare a preblaa sf sensors, leweeur, Federal and State legislation enacted ewer the past few years has plsood an the caployer the burden of proof for oostiausus caaferascue with established TLY'e. In riev sf this responsibility sad treads In decisions sf compen sation elslas, it boeeaeo inperutiru that aa effective industrial hygiene progrsa bo adapted. The need far auak a pragma besenes scute when pre^eaployaent aodicol asaoiaetiess are act required for the Mspleyeeo. DUP 11U076 .0 l DU 055068 2 T. H. Xaakls DMikr 21, 1967 With ths absas aaatlaasd rsspsasihlllty la alad, ths mwy rssalts asald ladlaats that s psnuaaat qaality aaatral pragraa bs iaitiatsd ts prsslda ast sal? fMitiUtlM data far lataraal avaloatiaa af dsat eaatral sffleiaasy bat alas ts dssvaaat air quality aaalysls asadsd ta 4--wastrats eaafuraaaas aith sstabliahsd TLT's aa4 prarlda affsstlts dsfaaaa la litlgatlaa easas. Sarlrsaaaatsl maltarlaf aaaa a asatk ahasld safflaa far aaaaval ssrk araaa. If alranaatasaas ahaald arias Aiah 1*ts1ts aiassal Oast gsaaratlsa, spatial aanltarlag sill ba raqairad ts saslatta tbs pot--till sxpssars MTarlty. Kqoipaaat parfsraaaaa aai raatllatisa apaalflaatlaas should bt aatabliahod far affastlra test sadaslML aaatral. Vark prsaadaraa and prstsstlsu sqsl--aat raqair--a ma alas ahaald bs ialtlatad. Vs rsquast that yaa aawsldar adaptlag tbs fallsvlaf raaaasamiatiaaa ta bs appllsd* all sits laaatlaas ts aaquirs sstisfastsry aaqirsaasata fran dsat aspsswst 1. Waiataia aa air a--pi las praaraa aith Ossa--atad rsaslta* This is aaaaatlal far tSs assr-sll baalth aspsoars aad paaslbla lltlfstiaa salts. Psrfsra raadsa paraaaaal'^Hpllac- aa a frsqaaasy af aaaa a aaath at aaab flald ahsp laaatlan sbara thara is haaaladgsdf aapassra ta asbsstss dsat. Tbs , sits Safsty fuparriosr abssld ba raspeasibls far aasslrlaa tbs air sanpla aad all taabalaal laforaatlsm aaaaalatsd with ths tapis. Arrsafsaaata saa bs aada through Or. app. Director, Saaks!I laboratory, far a qualifisd latarprstatlan af tbs saapla. basalts sksuld than ba dssssaatad at aaab sits laaatlas. Ta aaquirs ths aaspla, tbs fallssiag iastnaasnt la rasa--ndsd; 'TUrfaty-Kite ilr taapiar" - Ualaa Madal AAO-A-SP with alcrslapiagsr. Tbs appraadaats east sf ths iastrwsat la 6160.00. 2. bqulpamat a. laslata pssar squipasat spsratisna la ths shsps from sthsr sbap facilities. b. Tnatal! exhaust Tsatllatian os all psaar squipaaat ta rsasTs dsat partlelas at pa1st af origin and salstala atassphsrs tstal dsat casst balav tba . Thrsshsld Llslt Talas af 5,000,000 partlslss par ^ esbis fast. All paaslbla daat fraa setting aad sbapiac fsaatlaas ahaald bs esllsetsd by aa affastirs exhaust aad ssllsatar ayataa. Callaetar ahaald nst sat aff aallaetad dust partlelas ta tha staaspbsrs. DUP UH077 DU 055069 F. H. Maeki* Daaaater 21, 19$7 3. Appliad Matted* la Parking Vith Matarlala . a. Initiate a aaatrallad step alaaallaaas pragran. Om a Taavan te mmti test partial** fran step qnipMurt, vark tablaa, ladgaa, flaara, ate. Bate aattiag ateald te daaa aa Jtkat tewtr paaalbl* aerap ate teat partlalas fall late a eaataiaar. b. Opan aarteaa af aatarlal vitk aara. fast 1a telrim laaaa fran akipplag abas* ate la ate af tea am saaara saaraaa af aateataa date faaatltlsa vltk teiak a* ar* araaaated. Tka aartea in te mate priar t* apaaiag bp aattiag a tela la tea aartoa ate iatradasiag a mwa tea*. e. Aateataa aaaaata mat te tetelad with grant aara. A spates te avald aaa teteHag ate nlaaag bp tend la teaafiaial. Tkla nap te Mimnpllrtwi kp praoaraaant af tea aanaat la aaall plaatla tegs tear* aster aap te iatradaaad ate tk* aanaat teaadad nltteat daat axpaswa. d. Tk* apray appllaatiaa af natarlala aaataialag aateataa fiter ateald te pravaated. Sararal atataa tea* aaaatad laglalatiaa antLaving tkla appliaatlan af Llnplt insalstlng aatarlal. A. teaklng ateald te prakikltad la atepa aith aateataa dst anpasar* ate team aparatlng taala ate afaipnaat parfamlng nark aklak prate*** daat. 5. Raapiratarp Prvtaatlan Savar* aaaditlana aap dletata tte naad far raapiratarp prataatlvs dartaaa. Ravarar, avarp attaapt ateald te aada ta atvld tkaaa darioaa slnea tkap aavar ada^aatalp protact tka paapl* in adjaeant araaa. Kaspiratorp prataotlT* davlaaa ara, teas raqnlrad, aa adaisalan af a prablaa. Sine* tk* lav aaaapta araa a caaaal aspaaar* aa hasaadaua, tte anrlraaaant ateald te aaintalnad aa that prataotlT* raapiratarp davlaas aaa ka avaidad. Apprezlaata coat of aurray - $2200.00 Kqaipaant Pvrekaaad 330.00 Saapla lntarpratatlon at $10.00 par 1970.00 (Dr. R. J. Manalla - Univarsity af Pittsburgh) DUP 0 .L ^ U' < > i DU 055070 CHAWBEKS COBSTKOCTICa ASBESTOS DOST EPOSP1E OOTKOL War--bar 20, 1967 The preliminary personnel nonltorlng array carried out daring Auguet 1967, oa Chambers Works confined earlier TiTlron--fl snrraya (Ref. 1 and 2) oa Chanters Works and la ehs Spruneca Shape which danonatratad that tha total partlela count, not earraetad far asbestos coatant, dass not arraad one par east af tha currant Thraabold Lialt Value (TLV) aatablishad for aabsstaa dost by tha Aaarleaa Coafaranca of Sorarnaantal Iadaotrlal Hygienists (ACGH-1966). Tha i is r anneal aoaltor aaanlaa vara eollaetad la f11tar* over foor to firm hoar porlods. Sine* lnplngers vara aot employed, tha raaplrabla fractloo cannot ba estimated bat can ba ignored as tha total partial* coast la aaay ordara of magnitude laas than tha aatablishad TLV. Eowirar, thaoa raaalta shoald aot eons as a basis for coaplaeaacy bat rathar shoald provide a basa for establishing a paroanaat monitoring program, federal aad Stata (1.*., Saw Jarsoy) legislation onaetod over tha past tan yaars has plaead tha brd*n of proof for continuous coaforasnca with aatablishad TLT's aa th* saatleyor. In view of this ajar shift In raspossibility for asblont air quality control aad tha tranda In conpaaaatlsa data doclsloas, an effective Industrial Hygiene prograa bocoaos Imperative. This rasponalblllty baconaa aenta whan pre-aaployaent aadlcal axaslnation* ara not awallabla for tha aneloyoas. Standards for aqalpnsnt parfornanca and ventilation spseiflcatlons should ba astabllshad aa soon aa poaslhla to Incorporate those currant practices and design fnatures which by thaaa surreys hare danonscrated affective dust Ml 1079 0 G i 2 v. ^ DU 055071 -2- MiMlio eiunl. Hark yraeadaraa aad agalyaar n^tnaati iIm ahaald k ta rvU* act aaly am lataraal pmdat standard far ather dayartaaats at the Da Pane faii^i aij bat aim tat tba tnldaaca at aatalda caatraetara aapliiyail by Da Pant aadsr aaatnet. i i A qnallty eaatrsl pragraa la ftwanM t* yaavlda aat aaly qaaatltatlva data far latataal anlntlm at daat fatal afftrtaaay, bat alaa ta daciant air qaaUty aaalyala aaadal ta laanaatnta aaa faraniun with aatabllabad TLT'a aad yravtda affaativa dafaaaa la Utlyatlaa aaaaa. Oadar earraat caadltlaaa a taaHauiiwn dally aaaltarlac prafram daaa act ayyaar ta ba naeaaaary ar daalrahla. Haaavar, a faraal yragraa far aacplla* aad aaalyalaa tha aatfc afayhaura with a frag aaay wblth vlll laelada all yhaaaa at aabaataa aaapa ahaall ba aatabllabad aad aaaalataatly adalalatarad far aa laat * TtT far aabaataa raaalaa la faraa. Za taaaral, aaaa a aaaeh ahaald aafflaa far gaaatal war* acaaa. If clrtaa ataacaa which laaalya aaaaaal daat faaratlaa ahaald arlaa, ayaalal aanltartag vlll ba rayalrwd ta avalaaca tba pataatlal wyaaara aavarlty. Iaaafar aa paaalbla, ptraaaaal aaaltary (aaa|illai aqwlpaaac carrlad by a aalaetad aaylayaa eaatlaaaaaly darlat Hla varfc aaalcaaaat) ahaald ha aaylayad. Oaly la this aanatr eaa a truly raaraaaatatlva aaayla af tha ataaaahara lmhalad by tha aaylayaa drl hla wight baat vark day ha obtaload. Saeh aqalyaaat la available aad haa haoa aaallad aaeeaaafally aa Chaahara Worka. A farther rayairaaaat far aa affaetlva aanltarlat yrwfxaa will laelada tha --pliyaaat af fully goalIflad (preferably carelflad) Zarfaatdal Rytlaalata ta dlraatly eaadaet eallaetlaa af tba am+laa aad ta cany aat tha daat camtlac* Tha dacmatatlaa at flald aataa aad aaalytlaal raaadta aad tha preparetloa at reperta alaa ahaald ba tha raspaaalblllty af tha ladaatrial Byylaalet DOP oci:^ DU 055072 -3- Saaiwaat 3--elflet1-- A. Ststlaa Snpllag - fertahla (Raf. "Air Stmr" H--fiiw af Oetebar 21, 19*4). 1. Tha pawwi "QOa CtMtwc Kata Oal-Jat Air Saaplar" ar tha taraaatic Oal-Jat Air Hollar" fitta* with aa l^roeai ataaCsn* aU|at laplsarr (Ttelaa MC) la aortas with aa O.t alaraa alaa "Mtlllpets" fUtar (Cat. la. K1WM7AB) la aacaptahla far aaa la all aaplaalaa haaarri araaa aa* aaa aaa* la tha aallaatlaa af aaaplaa raparta* la part aaa af tha rh--hsn Parka aa* tpraaaaa Marka aaraaya f*af. 1 mU 2). Tha aaapla aaat ha tallaata* at a wlfara ataalarl, 0.1 cabla faat par atm rata (Cfe), aa* at laaat aaa eahlc feat af air ahaal* ha aaapla*. Thaaa aalts will operate waortaafe* far chraa ca fear haara. A Ary saaplar. tha "Thtiaa Medal 2.S laaplnhla Daat Saaplar" eaal* ha aaa* ta aeparata tha raaplrahla fraa tha aaaraaplrabla fraatlaa, hat la aat raamgalsa* by tha Aabaataa Tactile Zaatltata. 2. Aa aa alternate tha rachartaabla battary pevare* "Ofciee Model 440 Mighty Mlta Air Saaplar" aay ha aaa*. Tkla Mllpat aaaplar wee aaal ear taaafally far parearns! aaaltarlag aa Chsabers harks (Part 3). Par aaplaalaa hasar* araaa, tha alightly largar "Talaatlc" Medal 150 eaapling aalt egwippe* with an latrlaalcally safe (Taetary Mataal approral) hattary elrealt la reeaaaaade*. Elthar af thaaa aolta parfara aatlafaetarlly with althar tha "Millipere" fUtar alaaa ar la aarlaa with tha atartar* Midget iapiager ar tba naaar Micro laplagar (paraaaaal aaaltarlag). fear ta fire haara of aaapllat at 0.1 Cfe will ha dallrvro* per slagle hattary charge. Laager eerloda will ba obtained at lawar aaapllag rataa with althar tha filter alaaa (0.05-Cfe) or tha wierolaalagar (0.02 Cfe). Largar capacity battarlaa ara available. DUP 1111081 r* 0U1 DU 055073 l--taunt faadfltatiau (CwrlwiwQ 1. rtmaml Maaltarla* 1. Tha hninl 440 Mlshey->*lta Air taafiUr" far -- uplaalaia kauri araas nr tha Haiti 130 "tlnlc" tar --kauri Haltat lawn is eta laatrunirT af stalan (aas 4-1). la tbs aaar faeara a third uial (440-4-fT) tqatpai with total aaiam raaiMt will ha antilahla. tar total 4at aaut adjr cka "HUllpara" filtar la r*ain4 far aa^la aallaatlaa. Itara raaplrakla as nil as ratal caaat la raqalzai, cka nlrralaptajai la uoi la aarlas wltk tha filtar. khlntaaar ayataa la alaatai, tha aallaatlaa darlaa akaald ba loaatai u tlaaaly as ysnslhla ta tka mb's hranthing aaaa wlthawt latarfarla* nick kla nark aaatgauats. 2* An aa altarasta aalatlaa ta tka aanpllat pnklai la t1---- kauri latafilau, tka Mnial TOI-175 'Thi-Jat Air laalar" fitted with i ( al artflea any ka sahatltatai far tha battery nynratai pup. tarar, wlthaat aMitlawl eallkratlaa far ana with tka aUwUpUpr, last aallaatlaa aaal* ha Halted ta filtar aparatlaa. A m paaai akara af ~Trnsn~12" will aartaata tka eaaplar far faar ta fins knars and aspirate a fiat ts air enhie fast snapIs. / "~ J' -^CvwCX A. L. Llaeh Medical Written myttnccr 1. Thatcher, L. T. - "Tataria lapart - Aabsataa tamay* - Jaawery 27, 19(7, addrasaad to 1. 1. Keeper, Oirlaiaa Safety SapaTlataedaat, Cana traceton Written - terriers Betiding 2. Thatcher, L. V. "Asbestos Srrmy - latarla lapart (laealts af Spruaeca Cautraetloa Surrey)" - April 11, 19(7, addrasaad ta r. I. Keeper (addrasa u la 1). DUP 1111082 0 C .1 2 o < DU 055074 cbahips caBnocnca U1RTOI DOR IPMBII OOHTIOL ________fHschmlcal toeacta) --pastor 13, 1W7 Tha peramaal aad wiraMtal aavliH dam at this alka twmIi m km reaaaaakle smtrel af the aatoetea kauri at tkla tlaa. Tka teUevtog esuclmleas aad neswalatlaai (if adepts') akaaU establish stellar aatlafaceary aavlrsaaaats at aay alta. 1) Malatala m air uapllai pregxm. This la eaaaart el ta the evvrall safety aadeevsr aayeuy. lasplrskla 4M: partlalaa fraa aaarly aay maraa are haaairdeue aad a aulaseen. 2) Xmlata uaehlae aparatleua la tha stops free atkar atop facilities. 3) All aaaalkla tot fraa sattlag sad akiyln fwtlaat aaat to celiactad ky aa effective towt aad aallactar ayatu (preferably vat aallactar). lyataa atould aat vaat aff ta tto ataaaykaw cellattad toat psrtlslas. A) tot atoy equlpmut, l*to*i to. assumed alau. laud cuttles atould to 4am aa tto scrap aa4 4aat fall lata a aaatalaat vtoravar yarntkla. 3) Opm aartaaa vltk aart. But la akaku laaaa fraa sklppteg afcaaa aad la a aaataa af hasardeua aakaataa 4aat questItlas. Tto aartaa am to wiairnmil prlar ta epaelag If daamd aaaaaaary ky cuttlag u epaelag la tto aartaa aa4 latredueiag a vaeam toaa. 6) Aatoataa caaaata mat to km41a4 vltk trace cars. A ayataa ta avali amhmdliag aat ulxteg ky kaa4 la toaaflelal. Tkla aay to aeaaapliakai ky a dlapaaelag ayataa ar praaanaaat af tka caaut la aaall plaatle toga vkora vatar aay to latradaaad aa4 tto eamat "haaadad" vltk aa 4mt aapaavra. 7) laaHag aheald to prehlbltod la step md vkm aparatlag taala aad equipmnt perforates daat product** vark. 8) Savara eeudltiaaa alghe dietsta tto aaa4 far respiratory prvuctlva devices! havavar, every attaapt should to aa4a to aveld tkla alaca it saver adequately asasldera tto peepla la adjaaaat areas. Further* sere, reeplratery pratactive davleaa, vkm rayclred, are adutealm af a profclm. Slam tto Lav accepts avm a casval aspeavra aa ksurdom, tto pratactive darlcea atould to avildad. 9) Exhaust aad vmtllatlm atould ualatalu anaasphere total dust asuat bale* tto Threshold Halt Talma aa estakllatod ky tto tedem Cmfarentca af Cirwrnaeifl Iaduatrlal Byglmlata. lest DUP 1 J1J083 0 K - 1 <. ^ O DU 055075 In r^ply 1 a c: l " v.i ''a'iz be:.v. OO '."-"S~c3 ?j;?c:.r -'2 '(Tzsiioi or 's??.'-7_'cz cc:;3T7i'C":o7 survey) Please refer to our first report fated January 27, 1967. he are attaching a list of oiur findings fron the survey trade larcn 21, 1967. 7o personal ronitoring vas done; however, the concentrations ir.dicstef the environ.-.ent at the tine to be well below the T.E.7. of 5,000,229 particles per cubic foot. It should again be pointed out chat this li~.it value is subject to sudden change as has occurred in the cases of -.any hazardous^materials. however, our present level is less than .11 of 7.L.V. LVTtknt Attach. DUP 1111084 Oi DU 055076