Document yMeGLwb0KxGnK0gZMGDg5EEn

FILE NAME: National Gypsum (NG) DATE: 1956 July 5 DOC#: NG044 DOCUMENT DESCRIPTION: Letter to NG from Laverack & Haines, Inc. with Conclusions & Observations RE Atmospheric Tests t y 5, 1956 hatloaal Gjpaua P ^ n y >25 Dalayara I t i B uffala, lev 7erk Attaatlaas Mr. H. C. M. Follord Gastlaaaas Aa Tou roqvaatad va el* boleo tha i ombI i aad obaarratiena aa a raaalt o f tha aarlaa o ataoapbarle taota aada la tha r ic ia ity a f jour B allafoste, h . p la o t. A to ta l of 54 a lr aaaplea, ovar aa lston dttoat parlad eoverlag alx aaparata daya, geva ooaalateat aad lo flo a l raaolta. Tha aoat unfarormbla viad d lraatiaa, of aowao, voold ha trm tha J eet-ioutbwtat, aad thia aa aaeaapllahad ea Nm k 29ih, 1956 Hovevar, a ll of tha taata vara of aaaaldorahla vala la d o ta n la la f ataoapbarlo ooadltlaaa la tha altgr of Ballafosta han vlad dlraatiaa aada oostrlbotlaaa hf joor plaat aa la p e a a lb illtj. Thora la aa qaaatlaa taot that mmb dual la oalttad lata tha a lr ty jva r plaot oparatlooa, aa arldaaaod by tha toast a f Taot ha. 2 aa tha asraiag of Maroh 29th, vfaaa tha vlad aa froa tha aoothaaat. Ivaa with aoat aaov aad rala tha oaw t aa 11,080,000 partlalaa par eahlo foet af a lr . Diataaoa froa tha p la at, hauarar, paxaittad tha daat te aattla quito rap ldly, aa tha taata on tha tT U n o o i of tha aaaa dar, vlth tha v ia l aov blorlac ataad llj froa tha aoothaaat, lM loatad. Tha drap fraa 2,156,000 partlalaa m Taat lo . 3 , to 1,232,000 partlalaa ea Taot ha.4 , to 1,152,000 partlalaa ea Taat la . 5 aetaa quita ooaalualva. Tha laeraaaa la ocoQt la tha o ity a f Ballafoata la additios of duat oraatad by aparatloaa la tha aity ita a lf. by tha CE#* 403180 oonfe'd -2. Tfaat these sources axiat i a quita arideat fajr tha tarta af iterofa 271*, vfaaa a oeust of 2,000,000 partielas la Taat Mo. 3 aad 1,888,000 partlelaa la Taat la . 5 vlth s wird bleviag froa tfae tova tovard tfae p laat, aad tba ta ita aa May 25tfa, vfaaa ao ts of 2,288,000, 5,160,000, 7,120,000, and 3,060,000 partiels v ltb ia tha elty vara rsad, aad tdad veloolty sa lov aad variable tfaat transport froa your plant vould bava basa la p o s s lh lo . Tba only ooaelusioa tfaat eaa b arrlvad at la th v rita r's opinion, la tfaat, tfaougfa your plant la aadttlag daat la ratbar hieb eooosotratien s, f a i l mi t aad dilution bring tfae eeaeantratloa dova to a n egligiti aaooat. Ote tha etfaar faaad, tfaa tasta iadioat tfaat tfas e ity dosa bava objeetlsaabls eoaosBtratioas at tin as, but tfaa souroe of tfas daat la vitfaia tfas oity itae lf. Tfaa vriter venid raaaaad, faovrrax, tfaat daat aatetrol at tfas plaat voold b ertraaaly daslrabla fo r tfas p erses! verklag tfaara. Tfaa nsdloal prefeaaiaa la laaaiag aera aad aera to tfaa opinion tfaat asp daat, ao attar faov lanooaoq, aaa ba faarteftel. Sa i t ooald prooant a faaaltfa parafalo a , too. Hoplag tfais noaary la b alp fu l, vs roteala, Vary trtely 7# IAVIRACI A BLUES, U C . a b fa ..Jl A . B. BQFTZS2ZR Safaty Diraetar CE#A 403181