Document a18J3mBgvVQwQNrxrvOyLBjrX

/' \ April 6, 1972 R. J. England ril* DqirOMt CSxelarUla Be#. : latter fren X. J. tat e J."aiuk; s/as/w This latter la la reply to jw? request far lsfcrneticn eoeaarnlat survey* of uu wtiar* aabeatoe -oectalnlat notorial la uaed. It la bard to *lva pacific datalla of arory survey. Bo too iltuatlooa bar* tba aaaa eariTTraantol faetera, materials, aqulpnoot, M'lMno layout, te. Every profclaa baa to be ranrleewd separately to determine tba aoureaa of duat release and tba aaaociatad factora that contribute to tba workers'anpoeure. Both personal and faenral roaa air sables bora to b takas to adequately aaaaaa tba' situation. Z bare aaeloaad a procadura that daaerlbaa tba recoantaled naabraaa filter aetbed. Tbara is so raaaen to co witb tba <*--salt aa aapbaelsed la tba attaabad outline. I bar* bad pood suoeaaa vltb tba MU Manltalxe and banra board tram a fav pacpla vtoo llba tba Oaloo aanplar. lotb at tbaaa Uttar unit# tra aa durable and tbs floanater la able to bo charted and adjusted durlac tbs oigi11 | period. In addition, it aar bo possible to oao a Oaloo Til mmT1 n 150* Ti^r'I-f although It would bato to bo bead bald at tbo aoaa lrral of tba iterator for iper*<al" camping. aoustlat la dona bf tba foUsalag Ubontdry on tba raplu that wo banra oolloatad. Kiftaw WlUlan tu Burgasa Attention; f. Zyoak p^artmant at krinanetil lanltb Balances award Sdboel at Kblie Jtoaltb 665 HmtHnton Arena# lootan, Mseacbuastta 02135 Telephone: 8-199-73^-3300 Intension 53b 853 DUP 0901930 DU 023313 X. 3, -a - April 6, 197S 1ft wfwnji to your other qaeotlea, tfto actual content of aeftMtoo la ma uftwtot "A* alotft Tartae fro* 75 to 100 ycrooat fty volcftt. The yewlip laewm tritft the grade daaigaatloe from A to Ift thoee alotfte that ci act 100 yercect aahoatoe, oottoa aakae vy the ralate of tfto weight. Tfto terror, tro-iacft ride atrlye rill yooe ao . haanrdla headllag. fteoaoee tfto rider 3&*laofr rolle ore royally out'with -- oftom; my dnet yreblae thould fto alaiaal ^{f m hare further raWtiooe 1^' ee tfto oe^oeltlee oad eharaotarlatlaa of tfto "A* elath, you'thould '" O.ft. Zone, HZ, Biglnecring Departneat, icwrloro lullAlxi*,"an "' - br : fltNM glaaa la oeealdored u inert aatarlal. Xayoanrejpit ftu foiled,to after aay ortdoaeo of flhrealr or eaoeor. OUaa olothfoaaeaaao - . ;.oaly at fotofttlol yrohlee oad tftat la a egtoaocna reeetlenfraa tfto-; , aaotealeal lrritatlotf'bc oattlagaetloa of tfto fiftert. fofcttfa^ay yraftr to'aae gloTea'`rfcaQThandlIag tfto olctft. - Clothe* aey Tiee~~iei oao-^f. y.*- . * teaiaetadrlth tfto'fXftioro oad MMO<iMoU7, ta o oaoStast ncnrao'af * aftlft Irritation; ttatftw, clothes to onrtowi rated thoold fto jboahed * i iqontily fron otftor roaring qytnl. fuUi| after oqpemre to flfter * . llttt e*ll reaore thaflhere fran tfto ekla. tf I eaa he of any further oaalataaeo, do not ftealtato to call. - OUGNAl aCNtt t* UOtAtD 1 0UOMC Richard 3. BAloft Oduatrlal 9glealot wVaoh DUP 0901931 DU 023314 ^:^8|bp r,,vi^^rf IV ..". . t 2RDC.WV- - A=4^ .i.t.r. .,....!!...i..*,.i.,-'A`.Vi&*3 '1 >. i.,,,^ii,.,il!Z 1 , r" v,, *. V s - - ^rpfnsr ^vM#f ',. . r-.^*. ?7-^iiraS = -'--> ..-'-*^S-v3.,, Ji V`..Vy j sfe&r* mts- s . >.- *.7 . i''i.-r;'*i* -' . I '.*J j?* j'1.n e/z! i-f''.*.,' " -... V.. >, JsKlw. '%* `? ' ,hii '.<` ^*v 1 i^K/^zk'\',h<` 'M -v i -t'r^ r <' * fKFtTi 7&E$aBU5SSt~-'' - . f-. *;*?;--1-\.-\- - ~ .V.--.V- jMrtj'fl-.'--64-JJ'-i^ .'}-jf-i - -*"V^tS '*: :- Sfcf-' -'-- ~ r?*' * yt'-^ 'JsEfc^V,'v ?-*r.^ <?**7vWlft*?* T^- ' r-K~A$'-'-7?^jt*> v feg'IgJpS^- i&v. Vi ._ ..... . ......... . * ,&&, '* * jL ;,'c .. ..^.-c*'^t&C^ i.v r^y. j,^f' - - ------ -:* > - -^.it r7^:--*.vj-jg.. i -4#^?_*^|.V- - * L; V^=,T^-