Document Z4opopMR80bmqg7B57dz37Qp7

TREMOLITE JCY 4/2/85 15169873 I S $ 1 15169874 ^^agosixion^ , ^.. Asbestos Fibers from Libby; (Weathej^f''-; ` vs. Hard Tremolite) RFTS 49514 - J.-;C.sTBg^^#,, ' '.'.-...- -::vi: n .r-v-V ' Associated; Minerals ' :;: r'-"'Sfu:" Veraiculite Rock Composition Memo J. C. Tang to V v R. J. Ostertog 1/12/82 b) Section of a Research Report - J. C. Tang to i E. S. Wood 6/17/77 on composition of Libby rock with sp. gr. between 1.585 -2.60 in ore concen trate composites 3. Morphology a) -Libby Tremolite SEM & FDAX Photos (McCrone) b) Libby Air Cassette Samples SEM a EL-AX photos (P. Sebastien, McGill Univ. 6/10/83) c) Literature W. Campbell, NBS SEM & EDAX of fibrous and massive t remolite 4. Size Distribution a) Air sample from Libby Mill (P. Sebastien, McGill Univ. 6/1 0/83) i. ii. iii. Table on Sample Characteristics Table on Concentrations and Size Dis tributions Size Scattergram b) ME-3 bulk samples 6/23/83 and 7/1/S3 (E. T. Peters. A. D. Little - 7/13/84) i. Graph on fiber size distributions ii. Portion of the report with table on fiber concent ration 3 . in Vernjculite Deposits Research Report - J. C. Yang 4/28/75 X-Ray Analysis of the l.ibbv Ore Deposits 15169875 ^r^&i-'ep^ii... Graph on monthly tremollte analysis;of*5^ ;"?:4-i;. .*? . c) Research Report - J. C. Tang 7/13/83 Tremollte Fiber Content of Libby Ore Concen trates other than monthly composites (1976-1984) d) Portion of Report to J. C. Yang to E. S. Wood 5/16/77 Tremollte Analysis of Libby Ore Concentrates In Zonolice Products a) Research Report - J. C. Yang 7/13/83 Tremollte Analysis of Grace Veraicullte Ore Concentrate and Zonollte Products. b) Research Report - R. C. Howard 5/4/83 Tremollte Content in Expanded Venniculite c) Portion of Research Report J. C. Yang to E. S. Wood 5/16/77 Table on Tremollte Content In Expanded Vermiculite. d) Portion of Research Report - J. C. Yang to E. S. Wood (4/20/77) Tremolite Content in Zonolice Products and Zonollte Job-Site Samples. e) Table from memo report S. Venuti to R. C. Walsh 9/10/84 Cencral 15169876 CaO Na20 k2o H2 F 0-F TOTAL 6.15 5.15 1.80 0.87 1.30 100.91 -0.54 100.37 3.22 1.26 -- -- 3.41 1.46 ... -- ___ . 3.26 1.58 -- -- Mg 't&57- Ma ... .0.01 Na 1.39 K 1.32 2.63 Ca 0.S2 OH 0.81' F 0.57 1.38 Total Fc as Fe^O-j 1. Richterite -- altered pyroxenite adjacent to aegirine-rlch vein Includes Ct203 0.06, NiO 0.23, SrO 0.02. Larsen, 1942, p. 49. Analyst: F. A. Gonyer. la. Analysis 1, calculated on the basis of 24 (0 + OH + F). 2, 3, and 4. Soda-rich trenolite -- altered pyroxenite adjacent to quartz veins. Analyses by Zonolite Division, W. R. Grace and Co. Libby !5 169877 Vexmiculites are known to be the weathered products of mica. A hydro- thermal process has occurred in the geological formation; the mica structure was altered as interlayer water was introduced. A partially hydrated mate rial is usually classified as hydrobiotite and a more fully hydrated mineral as vermiculite. However, due to the variation of chemical composition at different localities, the degree of isomorphous substitutions and rate of alteration vary in a wide range with the generally accepted formula of ver miculite as Mg0 ^ Mg3 (Al, Si)j. t.5 H20. ,A The octahedral Mg nay be partly replaced by Fe , Fe+^, Al, etc. In tetrahedral position the Al/Si ratio usually lies between 1:2 to 1:3- The optical properties, densities and x-ray diffraction patterns of the minerals vary with the substitutions and degrees of hydration in the molecular structure. Table 1 attached shows the literature values for the general properties of biotite-vermicuiite series. Tremolite, an amphibole, has the composition Cap (Mg, Fe)^ Sig Opp (OH)p- A slight amount of Al may replace the Si, with the attendant addi tions of 9a to the composition. EXPERIMSNTAI. Five samples (three vermiculite' ar.d two tremolite) were chosen for analysis. Sample Description: $1, brownish vermiculite flakes, hand-picked from Libby =2 size reserve, thin books or flakes, light brown to red brown with high luster. (2, greenish flakes, hand-picked from I.i'oby n2 size, heavy, thick books, dull, green color. tf21 Libby #3 as received, except some \~.sible bundles of tremolite were removed. , tremolite fiber bundles, hand-picked fro:s Libby $2 reserve. #5, tremolite rock from. Libby, slightly crushed. 15169078 DISCUSSION and CONCLUSIONS The experimental results indicated that there are differences in density of the Libby ver*!iiculites, depending upon the degree of weather ing, i.e., the percentage of hydrobiotite vs. the percentage of veraiculite present. The x-ray identification of the species agrees with the trend of the density determinations. Two tresolite picked from different locations, whether in bundles cr in rocks, showed no significant difference either in x-ray patterns or density. The reddish-brown to brown flakes with high luster (#1).are velihydrated true vermiculite whereas the dull dark green thick books (#2) are mostly hydrobiotite. Kydrobiotites showed higher density and index of refraction, and lesser degree of hydration. The composite sample Libby size l (-73) has slightly higher density than samples 1 and 2, but does not necessarily naan we have more hydro biotite or biotite since there is a certain amount of rock [pyroxenes (D = 3-2) and feldspars (D ? 2.7/] present even sore fiber crer.olits (D = 3-3-2;. The presence of any of these minerals, or combinations, would re sult in a slightly higher density. 15 1696 79 15 169880 f'1 jf fc--.' v' Acarite - Augite NaFe Si-jOg - (Ca, Na)(Mg, Fe, AljSigOg Oiopside CaMgSigOg Intermediate: Feldspar Mi crocline Ortheclase Anorthite KAlSi308 1si38 CaAloSi-0,, L co Minor: Quartz Tremolite Mica phlogopite biotite SiO? Ca2Mg5Sig022(0H)2 KMg3AlSi3010(0H)2 K(Fe, Mg)3A1Si3O10(OH)2 Magnetite Sphene Fe34 CaTiSiOg and some u^expanded but expandable vermiculite and hydrobiotite. 15 169882 ___________ __ ;the " e/ s:|?^-betveen4fljoati^K^1^ia3^ vere;i^t3^Mca<^us ofipercentageof.:;: ?d^r&^^t%he? Table 1 of 5/16/77 report. ; .- .t. s-Vr'\<wj >*'"- -S' :s Expanded Vermicullte A sample of K-5 vhich we used for the determination in the repor vas submitted to L. Feldman for vermiculite determination. Len's resu were attached. This specific sample showed 38.9236 heavy particles usi C-31 test of less thun one-minute standing versus our results of 51-3/b (5-nirute standing}. This sample therefore is a very poor sample and v out of specification. JCY:nlr ]-Z6/* Julie C. Yang < 1!I 1516960 '(T V-irrV^ '-V To evaluate three trc which tresnolite fiber is clc product; that sample will b-. SUGGESTED APPROACH: DEADLINE (Last day informatio: DETAILS OF PROBLEM: ~s submitted by Libby due, and to determine properties of the fiber found in our Libby 'eration stucty. . ue): ACCEPTED BY RESEARCH DEPT. : ASSIGNED TO: \ ADDITIONAL COPIES: 0: i:;ir.:a t DATi . ii.C.Duecker, RJI. Locke, -'rio/Libby, 0 .F.Stewart/linor -070 CPD-TSA 15169884 -------------------- ---- -............. tesamples were '{characterized, by. ac-ray^t ofeach vasideterminedandcociparedi ad ____ Jflted; that ^ the' ?L ^resembles the taand-pickedffrber found in Libbjr; Levei4/Dytestremolite fiberjinfthey operational test; ' * .a'r"n:.v-ai' tamm*` *.- ' : 'tile Beceived firom Libbv I.D. No. Description ?P ive. Lift tuse o- scoramenaed^ tev $&&&: :/i ^.A<v: _! >' $**', 22279-1 2 22279-2 3 22279-3 Level 4 Dyke, high grade ar . stos, ."X]:J-. Level 15 Dyke, high grade asbestos. Asbestos Concentrate Dunp, relatively lov grade asbestos. Observation ie: 1 2 3 very lumpy but soft, highly weathered, rocky and hard, .more impurities than 1 and 3, moderately hard, more asbestos pencils. X-Ray Diffraction Characterization All three samples showed very good tremolite patterns, identical to the rn of the hand-picked tremolite from Libby 2 product. AH have small is of vermiculite-hydrobiotite and pyroxenes. Sample no. 3> "asbestos itrates", has the least impurities - verciiculite only. Specific Gravity Determination Thp -100 mesh samples were weighed, immersed in distilled water in the meter, de-aired with temperature measurement for density determination in ;cate. Sample No. DescriptLcr. Density Determined (g/cc) 1 Level L 2.867 2 Level 15 2.77 6 3 Asbestos Cone. 2-919 i ked tremolite from Libby //l' product. ;,.003 15 169885 I >I 2) The sarnie from Level 15 Dyke is hard, shows high aggregates and rock center When screened, the fine fractions are all in hard pencils; no vh' fiber balls are observed. 3) Ihe "Low Grade Asbestos Concentrates" seems to have the highest grade of tremolite with very little impurities; when screened, the fine fractions again show hard pencils. VI. Degradation Studi.~ The objective of this stuiy i " to find the degradation behavior of each asbestos su-mple, thus to achieve better understanding if the material is pres ent in the vermiculite concert.-ition operation. The fraction (-6 r PI slit.-/ of samples obtained f.o..i the screen analysis was taken for this analysis. Samples of about 5 6 by weight were subjected to SPSX-milling for a predetermined time, then sized, and weight percent de,ttermined. Hie results are presented in Tables ha, b and c, and Figures la, b, and c. From the figures it showed that the Level h Dyke material and the "low grade" asbestos concentrate are somewhat similar in degradation behavior ex cept the Level U material bro-zo do'/n a little faster in the 5 minute test du~ to high degree of weathering. These two samples were comparatively softer and did not break down as fast ir. d- d .grab lion process as tile let s- weathered Level 1 5 material when S?.OI-"i lied. Vie .oft f'ber would iiave a cushioning effect to reduce the imuict 15169886 Appendix II Figures 1 a, b, c 151698 67 06- + O c\i 1 + 3.5 -3-5 + 6 -6+20 -70+100 - 100 % Recovery: 0.6 12.0 44.3 23.7 ' 5.1 3.5 99-3,1 0.6 10.7 44.2 28.8 4.6 9.9 93.# 0.6 9.5 44.3 29-0 4.5 10.6 98.43 :V 0.6 8.4 44.4 29.I 4.4 11.0 97.9* 3 - Screen Analysis of Low C-rade Ao^T* tl03 Concentrates 3.5 3-5 + 6 6+20 20 + 70 70 + 100 ICO 1.2 15.3 46.9 24.5 4.8 6.1 r1 Recovery: 93.31 0.8 16.4 46.9 24.4 4.3 7. 100.1,', 14.7 * 46.7 24.2 4.1 7-9 93. ?1 0.6 14.7 46.4 24.1 4.0 8.2 97.91 O o\ a.*;. 169386 Kesh Size 00 Level 15 Dyke Material 5 riin. dP Retained 10 x!in. + 20 M - 20 + 50 M - 5G + 10C M - 100 M *p Recovery: COo vi 0.2 l.l 12.7 97.5;. 0.5 5-b 12.7 76.7 55-7f, 25 Mir:. 1-3 7-6 J J* 7U.0 96.26 Hesh Size (c) Low Grade Asbe stos Concentrates 5 Min. # Retained 10 Min. 25 Mir.. 20 M - 20 + 50 M - 50 + 100 K - 100 M % Recovery: 0.2 .8 ;(5.3 9-3.1> 1.0 7.6 19-9 66.7 99 - 5?> 1.1 9.2 13-3 7U.9 93-56 151698 89 Ibices' /oooo* 8 383 SEC 20898 INT ' VS : 2588 HS : S8EV/CH TR.F.M01.1TE (1. ibi'y) 15 169- Chemical analysis of individual fibers by Energy Dispersive Spectrometry of x-rays. Typical spectrur Scanning electron microscope (STM ) and energy dispersive X-ray spectra (EDX) photographs >l asbestos .mil non. is best os t rein ol ite. Upper panels - S I" M . left I remolite asbestos and right --nonnsbestos tiemoliie. lower panels - HDX. lelt (remolite asbestos and right nonasbestos treniohtc it> 1698 96 , --< TREMOIITE Figure 19. - Transmission electron microscope (TEM) photographs and selected area electron diffraction (SAED) patterns of asbestos and nonasbestos tremolitc: Upper paneb - TEM, left - tremolitc asbestos and right - nonasbestos tremolitc; lower panels-SAED, left - tremolitc asbestos and right -norusbestos tremolitc. lc-1 f.'if-f Megascopic nd nnori'vi pir photogr a phs of asbestos and nsvrushostos tremolite: Upper panels - k:\ trem--!(c .i>N-and right nonast'cs'.in tremolite. lower panels -microscopic. left - ! e:e .v^-.n-s and r:pV-1 n- - `'oos tremolite 4J to 3 o 5; IB ! >, ? C< w> <0 ; o ai Me f- o Cl o i-* 0 wa t- V o >t R Q Sc o0 w ->H 13 O' g to < (0 M w w CO < -* V) fO \o in o * o VO c\ 00 o o rH CM CM I i i CM CO O 1 CD [ <N CM 'ey l m h (N -3 ^ .-3 .C u a0 c o 0u 93 UA OO 31 a _* Q O H Vt 14 a Mc 0o Q H U a -H 0 o nC a< O . O o o + oH & 3 O sM 1 H 00 O a: Oo >o 6 0 o i i ~rK V-i Vi to o o oo o z o rH *H Ch H N 0 3 x: x: a1 < 4J 4J to O0 O> 4 * rH H to e> rH rH -H z -H M X s: Pj n #H c., to *-3 t--i * s V. * '*iK FIBEK WIDTH (urn) Figure l- Distribution of fiber dimension* by c1***1flcetIon category (open symbols June 21. 1931 ssnple; filled svobols: July 1. 1981 sample} X5164903 ?'W.%V<rr;n.'v.-: ^|;|i;.||f":;" `preferred. f; \< /. __........._ ptelatlngtto-. the representativeness of a particular^analysis, .\fstatistical approaches are Available for estlaatlng thefxange of results that could be expected,Ifor, a series of replicate^analy.^ses'^MThei Poisson" distribution!function Is generallyeused for .;tMCo^uclng|t]ie: results of replicate analysis or forScouputing a ''^^o^ldioBce^'lntetval^' i? The - usuhl ^cotifidence Interimrlsjthe'i range inwhich1 95 of 100 replicate-analyses would fall assuming the fibers analyzed satisfy the Poisson distribution. Thlscan be examined for the wo recently completed analyses. June 27 July 12 Category Tremolite Confidence Fibers Interval 0.24 - 7.22 Confidence Fibers Interval 2 0.24 - 7.22 Tremolite Probable tremolite 14 7.65 - 23.49 2.2 -13.06 Tremolite Probable tremolite possible tremolite 23 14.58 - 34.51 8 3.45 -15.76 For the conversion formula and the median fiber masses given earlier, the results rounded off to the nearest ppm are Category Fiber Concentration (ppm) June 27 July 12 Tremolite 0-5 30 - 913 Tremolite probable tremolite 4-14 14 - 81 Tremolite + probable tremolite + possible tremolite 9-22 4-19 l5l69994  -> i'^Yr-vv^ % k+5 ar identify and estimate seml-quantitatively the mineral components present in the Libby ore deposits at the locations of which were identi fied from the blast report-1 provided by D. Riggleaan. SUMAHY The results are shown in the attached tables, 1 and 2. Most of the findings agree with the key (vermiculite content determined from the assay reports), but some showed deviations from the key, generally with vermiculite contents higher than the amounts shown in the key. Minerals associated with vermiculite ores are mainly feldspars (ortboclase, microcline, anorthite, plagioclase, etc.) pyroxenes (ac-ro.te, augite, bypersthene, Johannsenite, etc.) and, surprisingly, very minor amounts of treirolite, talc and hornblends. The data present are indicative but not conclusive. We will have good petrographic analysis of these to confirm our findings in the near future. JCYtmlr attachments Julie C. Yang i ; 15169905 i rM 20-hOf, V IV, Tr 4o-6o)6 v 4o-6oj6 v - -% v -5$ v 4o-6oj6 v vy> v *V, V iv iv jr, V* Tr, IV Tr V, By, Tr V, By, Tr Tr -% v -% v 20-40)6 V IV 4 v Talc, Tr Talc, Tr F, Tr 4o-6oj6 v F Tr 20-40)6 V Hy, v j j* ij quantity t Tr, Talc Hy - hy&robiotite pno V - ver" ! JLite F-f oar 15l6990t 3|g aw T*t"> fi;: -.,K-..-.\,e ... iv &<;&* V >;--'i*.s* i'-.'T >W'.', > -t ."y. mMm.............. " STABLE?: BWW Jsfew **<" UTICW, 15-38 (BAD); S3r* -*1 ' - 19 PW gPigPjg 'J^K^qK$gi| ^t^5035)H iSfe^'lSS ?$fT& `:vs- ff9*y^ -fc?T. Talc, ^iJMf ;. r^^il^l ,jgf V- -k :-.: ;s, q, y, y ' f :mmm ;y-->v;.y.S':-5r' yr ^ mmrV- : - r Hf!" r ;::;v r -,V -5jtv F q, iy l''v Hy, V, Sale, Tr 27 -5* V 33 4o-6o v 48 v6036 JD 20-4o V P V, Hy v, Hy v, Hy Tr, Talc, Hy, V f, iy F F, Py, Tr, Talc Fy, Q Q, Tr Py, Tr (?) -- 10-15* v -- 84 v20-kaf, V, H 86 -% v F Hy, V. T?J.c, Tr, Py F F, Py* * Fy Tr, Talc Tr, Talc i * Intermediate minor - 5-20* I f1 j F - feldspar Hy - hydrobiotite V - vermiculite Tr - tremolite Py - pyroxene Q ' quartz J.C.Yangrmlr U/16/75 15169907 tI ' - 10% Vm.; j 15% Vm. I 20% Vm. | 40% Vm. 50% V'm. v'ualiiy i ;o' Qy \ o' Mffih # r1 W VC !C*J I i- ft$*''!-/s'*i# ;- 5%vm. A-r 5% - 10% Vm. 0+ 1Qe3 - 15% Vm. j -j- 15% - 20% Vm. j ^pr 20% -- 40% Vm. j <-J- 40% - 60% Vm. J (+ 60% Vm. | / Marginal Quality Giotite | X B'Otite 1 f i " = 50' 01 \ r. 15169909 JCY 4/9/85 1516^910 JCY 4/9/85 1516 1911 -o XX o -37 K-4 3/1/77 75^ -38 K-5 3/1/77 76.6 46 Head Feed, 3/9/77 7.0** Libby Includes all anoh-ibole mineral ** The material floated after e.\ "903 .492 .874 .070 5-034 302 34 235 009 10.0 15.9 3.8 2* 1516991- In 1977, we analyzed Smith Carolina ore c. products containing v issued on April 19 at ical procedure and t analyses are attack' Since then, various . Tht results tabu" The tremolite content monitored monthly sin shovn in Figures l tl in Figure 6. Only a October 1977. The r. are shown in Table 4. size of Libby ore cor These data cover all concentrate and Zonol: feeds and ore concent designated numbers in kept in the library. . content of all sizes of Libby and expanded vermiculites, and all Zonollte E. S. Wood's request. Two memos were respectively describing the analyt:z analyses. Sumnarlzed tremolite were analyzed from time to time, in Tablas 1, 2 and 3. j feeds and ora concentrates were 777. The yearly plots of this data are " running plot of each size is given concentrates were analyzed prior to .ysis, other than monthly composites, ages of the tremolite content of each tabulated in Table 5. : tremolite fibers in Libby ore o date. The analyses of Libby head rted under individual RFTS' with 75XX to 68499. These reports are JCY/ph At cachments It 3/14/78 VETS 69515 S - -#v': : J-.r. :6/7/78|p, KFTS 69530 AtticFill -MV<oOVi 8/19/80 EFTS 69622 4/24/81 KFTS 69755 6/25/31 KFTS 65538 5/4/83 Hetao co J. Wolter CMC Coated L-l 14H. L-l SS L-l. 14M Attic Ins. CMC Coated Uncoated L-l vV L.'i, f-' ' : W. Chicago',../--; , * 1'- /'; Baimafnitnace Buffalo'/ /-t:#*- '. Aldrich Weedsport . .. .005 .56 6.13* Easthampton 0.44 0.79 .003 (b) 2/27/79 EFTS 69545 5/5/80 RFTS 67583 EFTS 67589 2/3/82 RFTS 69755 5/4/83 Memo Co J. Wolter Ind. L-2 + 14M Ind. L-2 14M Ind. L-2 14M. L-2 L-2 Pyro Engineering. Ca. .008 W. Chicago .002 Ventron, Alpha .021 Weedsport .10 t 0.02* Easchampton .002 * average value of 6 determinations HfV? 7/22/77 L-3 't -* rv^ ...................... . V W. Chicago (0-18) .y:i^:/ ^ .076 0036 8/7/78 5/4/83 RFTS 69534 Hwo co J. Wolter Screened* 14M L-3 L-3 J. D. Brash Co. Easchaapcon .010 .001 (b) 7/22/77 1/31/78 1/31/78 4/28/78 5/16/78 5/16/78 5/78 1/19/79 2/27/7S 3/6/79 5/8/83 RFTS 50110 RFTS 67012 RFTS 67013 RFTS 67015 RFTS 67016 RFTS 67016 RFTS 67020 RFTS 67026 RFTS 69544 RFTS 69543 Memo to J, Wolter L-4 L-4 V. Chicago Agway, NT L-4 Voluntary Purchasing Group. Texas L-4 Unscreened Unscreened QC L-4 L-4 Rockland Chemicals Sea Coat Lab Screened Unders L-4 Dallas D-18 (dry) D-18 (wet) L-4 Agricultural Grade Wilder (D-18) L-4, Roof Deck Gem Tel Bldg., CA L-4 L-4 Sinclair Paint Bldg.,CA Ea s thampton .062 .032 .008 .16 .003 .007 1.5 .0099 .0025 .039 .61 0.15 .002 15169916 3/4/80 A. D. Little Prudential Bldg. Morristown, N.J. B. T. Peters 6/27/83 A. D. Little Easchampton E. T. Peters Confirmed Possible 7/11/83 A. D. Little Trenton, Lot 2F1 Mt. Sinai "wipe out" technique* E. T. Peters Found Estimated detection liml k * J. C. Tang has concentrated the Creoolite contalng fine portion by plaster of Paris binder burning off the cellulosic fiber and organic floatings off the vermiculite and submitted to ADL for electron oici V . ,- i' i 'ktfi ^ Vv l-4v^!otSerge^?'?'s Concrete : Aggregate Dealer Concret< Aggregate Dealer Concrete Aggregate Industrial Industrial Industrial Industrial Industrlal Industrial SC-4 L-- 1 L-2 L-3 L-4 SC-3 SC-4 Masonry Insulation L-3 Masonry Insulation L-4 Masonry Insulation SC-3 Monokote Monokote Plaster Aggregate Plaster Aggregate Terra-Lite Terra-Lite Te rr a- LI te MK-4 & 5 (L-3) MX-5 (SC-3) L-3 SC-3 L-2 L-3 L-4 _*V ` j '*' - *-# -t -* '?'' it''-"' * > 5/19/77 5/4/83 .5/4/83 -.-* i`-*SfK* -*>> ,5/4/83,: 5/17//7 * *: ''* TV**?r '< SWf*3^! 5/19/77 <5.0 7.9 5/17/77 SEE CONCRETE AGGREGATES ABOVE i tl 6/10/77 6/10/77 6/10/77 7/19/77 7/19/77 7/19/77 It <0.1 <0.1 <0.1 <0.5 <5. C* <5.0* 0.003 0.002 0.001 0.002 1.6 7.9 N 5/4/83 5/4/83 5/4/83 5/4/83 5/17/77 5/17/77 5/19/77 <0.5 0.001 5/4/83 5/19/77 5/19/77 1/29/82 1/29/82 NA Na na na Na <0.5 0.001 <5.0* 1.6 0-20pptc No Mention 0-l0ppm No Mention NA NA 0.001 NA i. 6 NA NA NA NA NA NA 5/4/83 5/17/77 7/11/83 NA 5/4/83 5/17/77 NA NA NA  HA HA ' NA i'^fel3fev0.07 .' 0.06 W NA 3/17/83 5/12/77 . .?.. :?X -/ HA NA HA NA NA NA 0.04 0.06 NA HA NA HA NA 0.06 0.22 NA NA NA NA NA 0.04 0.12 NA NA NA NA NA 6/1/83 6/1/83 NA NA NA Q.08 0.83 0.63 4/27/83 0.02 0.33 0.13 6/27/83 0.03 0.21 HA 5/12/77 0.01 0.09 ^0.10 <-0.25 0.04 NA 4/26/83 5/12/77 NA. NA NA NA NA NA 0.10 0.10 NA NA 0.82 0. 72 NA NA 0. 19 0.20 NA NA 6/20/83 6/20/83 <y ?4 "-ix:-.f'.. M ft * ., is-;-' .* *If S ' &}&)]$... ''S' '.'l,>"> C -'' f""` sl5^' 15 16 99 19 Introduction: This memorandum is being issued in response to your verbal request for quantitative treaollte determination in our expanded Libby products, samples L--1, L--2, L-3, and L-4 were received in four cubic foot bags from Easthaapton and the L-5 sample in a five gallon bucket from Libby. Each sample was quartered using a large plastic sheet until portions weighing 1500.00 g or more were obtained. Samples so obtained were separated on the basis of density using: a. Water floatation to separate the bulk of Mie expanded vermicuiice from any heavy particles or "sink", b. Heavy liquid (density "2.7 g/ni.) ro further separate any vermiculite fines from the sink. After separation both fractions were dried and reweighed. The sink portions were then pulverized for quantitative analysis of their tremolice contents via X-ray Diffraction. Results: The mean treaollte content, based upon duplicate analyses for each sample, have been summarized in Table 1. Table 1 -- Mean Tremolite Content of Expanded Vermiculite Sample Uc. Z Tremolite Content L-l L-2 L-3 L-i L-5* O o 0.003 0.002 0.001 0.002 `based "n .'nly one determination. 1516^920 * x -t -- Mater: with s ^yi^tuofrc. . e rewo cone 51e 1 the total tremdLite:contents' of these ^samies^are^'all "" > * -*^, ***?' -^-iQ- g*aHWMBMMttBiflfr ; difference ; between: L-5? and s' the :others^o|K^resSlt^dftf * .._.i on of L-5 at Libbyin; an assay furnace^wltho^^baghodse % of airborne treodilte,:;;;^r ^ gating the expanded product to stoner':treatients' ' - Easchampton Is done In a^Kodel A. fur^c^l^ulpped;:^; : ' sconer. \; As toch; treaolite.Jewelaejar^^feM^tfdrj42^:-.-. . ouse lsolates;;airborne'tr^iite*1wh,ilefft^stbner%':' '' ' portion of heavy particle In which treaolite is ; L4-23 52-18 1000-242. rch.-j 15169921 *- - s> 99952-39 99952-40 99952-48 99952-41 99952-42 99952-43 L-2 L-3 K-3 k-4 K-5 3/18/77 3/9/77 3/3/77 3/3/77 3/3/77 5 :>; ; . . -- > . 97.1 97.7 0.028 t . ! y/V ' o.o49 91.0 T9-1* 1.6 * 7.9 48.7 interference * Includes ell amphibole cinereis. V 15169922  .r'*-v 7' I ... Her.. "SSK'.-'-1 " O' '/<vi To: L. S. Vcv From: J. C. Yar April 20, 1977 ''.A' Libby ID Bo. 10 6 19 25 23 14 15 12 3 16 22 V T- : At/ . Re Fr f' r c s c B. Tremolit:1 ID No. 8 9 28 51 51* 55 58 S7 z-: K FK." Ms.:: ZI* Ka M- 'r>/A?vV,-r` " V ''^'a- ; - '.7 ; '"V .--` .. <:;77v> 7 Tremolite Content in ZONOLIT# Products Page 3 ; .737' criptioa Chicago % Tremolite <0.10 0.01 ~ .cago W.Chi: o 0.035 .013 nta A: ( s rec'd) .031 <0.02 (dried) .051 ( S<> , Chicago ec'd)O.03U <0.007 0.3H lried)<.0h3 (L) L.. . ^0.009 <0.009 ,-ite Job- .te Samples * Descript, on L ration '5 B) r) ) Mas'r Montgone. - , Ala. Columbus, hio Forest S ice, Santa Ar San Dieg W.Palm T oh, Fla. Edison i... . , Miami, Fla. irn & Coe Bldg. , Oklahoma Hyatt Regency, Dalles ied bas' & Tremolite 2.828 0.050 0.031 <0.106 2.86 0.476 0.250 0 ?Uo (.0: j-Ss&Eg-^KES 151bQ92 1 "fixl9?7i w analyzed thetremolitecontent of all slzes of,.Libby and Soath Carollna ore,concentrates; expanded vermicuHtes.and allZonolite produces containing veraicullte at E. S. Wood's requests Two nemos were Issued on April 19 and May 16,' 1977 respectively describing the analyt ical procedure and the results of these analyses. Susnarlzed treaollte analyses are attached with this oeno. Since then, various Zonollte products were analyzed froa tine to tine. The results are tabulated-by product In Tables 1, 2 and 3. The treaollte content of Libby head feeds and ore concentrates were aonltored monthly since October 1977. The yearly plots of this data are shown in Figures 1 through 5, and a running plot of each size Is given in Figure 6. Only a few sets of ore concentrates were analyzed prior to October 1977. The results and analysis, other than monthly composites, are shown in Table 4. Yearly averages of the treaollte content of each size of Libby ore concentrates are tabulated in Table 5. These data cover all the analyses of treaollte fibers in Libby ore concentrate and Zonollte products to date. The analyses of Libby head feeds and ore concentrates were reported under individual RFTS' with designated numbers in the block of 675XX to 68499. These reports are kept in the library. .. ,3/14/78 RFTS 69515 S 4 6/7/7 8 RFTS69530 8/19/80 > SFTS 69622 4/24/81 RFTS 69755 Attic Fill W. Chicago ,...,. ifikvn 4-v'iVv^-... Hanna-Furnace, a, '."-Tl.-'S......`------ i^f!rL*L - *.rf1 w| CMC Coated L-l 'ludrich'1:", :*t:f. . 14M. L-l \Y'Veedsport 0.02, l013?`lfef ,,' n 'SfJ -'V W rj-Vi, 'mv^ioos-: V .56 0.13* 6/25/81 RFTS 65538 S6 L-l, 14M Attic Ids. CMC Coated Uncoated 0.44 0.79 5/4/83 Memo to J. Volter L-l Easthampton .003 0>) 2/27/79 RFTS 69545 5/5/80 RFTS 67583 RFTS 67589 2/3/82 RFTS 69755 5/4/83 Heao to J. Volter Ind. L-2 14M Ind. L-2 14M Ind. L-2 14K, L-2 L-2 Pyro Engineering, Ca. .008 V. Chicago .002 Ventron, Alpha .021 Veedsport .10 t 0.02* Easthampton .002 * average value of 6 determinations 7/22/77 1/31/78 1/31/78 4/28/78 5/16/78 5/16/78 5/78 1/19/79 2/27/79 3/6/79 5/8/83 RFTS 50110 L-4 V. Chicago ' : *: .062 RFTS 67012 L-4 Agvay, NT .032 RFTS 67013 L-4 Voluntary Purchasing Croup, Texas .008 RFTS 67015 L-4 Unscreened Unscreened QC .16 .003 RFTS 67016 L-4 Rockland Chemicals .007 RFTS 67016 L-4 Sea Coat Lab Screened Onders 1.5 RFTS 67020 RFTS 67026 RFTS 69544 >. L-4 Dallas D-18 (dry) D-18 (wet) L-4 Agricultural Grade Wilder (D-18) L-4, Roof Deck Gem Tel Bldg., CA \ .0099 - .0025 SJ^039-' fsKfs&e . ; ^61 RFTS 69543 Memo Co J. Wolter L-4 L-4 Sinclair Paint Bldg.,CA 0.15 % Easthampton i .002 15054729 5J &f3/4/80 . > sftaseas teferencel .So.ur.ce. ,, jcAnalyst:^ ^S |ply^^fe^fc;`cCA * - '*'' S^.E^&>etera>- 4 &M&<4$ifp!p^ : tJ~... . ;, . .. ; 9^^Vpf' '' "' . . "^VivD. Little t Prudential Bldg. Morristown, N.J. E. T. Peters 6/27/83 A. D. Little Easchampton E. T. Peters Confirmed Possible 1-3 ppa 7-30 ppa 7/11/83 A. D. Little Trenton, Lot 2F1 Ht. Sinai "wipe out" technique E. T. Peters Found Estimated detection limit none 10 ppa P?i~. r< f * J. C. Tang has concentrated the tremollte contalng fine portion by dissolving the plaster of Paris binder burning off the celluloslc fiber and organic natters and floatings off the veralcullte and submitted to ADL for electron microscopic analysis. 15054730 O' r* 8 I o 00 o f' r" o O Hn L>'"- mIFSjC* ' $&<?- 1505^731 l505*732 1505*735 ii-fV, %r35 "' -36 y 's *^?kko/a/ i t h-*smJm.i'SMMi+ian) ', i.uss- V'v'H \ ^ '<' * c *" (r70;+100M) . .232 **? t (-10CM) .009 - ; #1% * > .; ?^Z * ' L-5 V; 3/1/77 63.9 (+70M) (-70 +ioom) .119 1.016 1-913 3.0 K-3 3/1/77 72.0 (+50M) (-50M) 1.60 .158 1.8 -37 K-4 3/1/77 75-1 (+70M) (-70 +100M) (-100M) 8.903 -554 .492 10.0 -38 -1*6 K-5 Head. Feed, Libby 3/1/77 3/9/77 76.6 7*0 (+7CM) (-70 +100M) (-100M) 0.874 2.070 13.034 (+6m) (-6 +20M) (-20 +70M) (-7014) 1.302 .684 1-235 .609 3.8 ! $" i \ tv.V" Includes all anohibole minerals, 1 <;$* -' r \ "$fy vV^r 99952-41 K-3 99952-42 K-4 99952-43 K-5 H^/iSt/77^ 3/3/77 3/3/77 3/3/77 m^g imp # 'V. ' S," v )&>' <*r^ yt y/.JLfe | t * '' *02^ \ 97.7 " 91.0 79*4 1.6 * 7.9 48.7 interference * Includes all amphibole cinerals. 1505^7A0 > ; o, --., 9 ' *VA V-J, -* >A-S 936535S7 '4& u * ri- <7" - ..*'& Product Description ' ' :iV,t^1&SMSeato=Ai ft HK-4 (L-3)eVest Chicago Masonry Fill' (Lto-18) West Chicago TemirLLte^if^ Chicago Attic Fill (L-g) .y.Chicago__________ ___ _.013 0.035 Redi-Barthi1 (L) Santa Ana (as rec'd) .031 Redi-Barth (L) W. Chicago<_0.02__ (dried) .051 15 Metro-Mix 200 (L) V. Chicago (as rec'd)D.034 (dried)<-043 12 Zonolite 3300 (L-3) W. Chicago <0.007 3 Concrete Aggregate (LUd-18) tf.Chicago _ __0.344_ 16 Scott Turf BoLlder (L) Dark 22 Scott Turf Builder (L) Light tyo.009 <0.009 ` y'.V-'j B. Tremolite Content in Zonolite Job-site Samples ID Ro 8 9 28 51 5* 55 58 57 Product Description Location ia Tremolite ZK Roof Deck (K 4/5 B) Montgomery, Ala. Masonry Fill (K-3) Columbus, Ohio Redi-Earth (L-4) Forest Service, Santa Ana Monokote-5 (L-3) Masonry Fill (K-4) Ssui Diego W.Palm Beach, Fla. ZIC (K-4) Edison H.S., Miami, Fla. Masonry Fill (L-3) Mashbuxn & Coe Bldg., Oklahoma Monokote-4 (L-3) Hyatt Regency, Deltas 2.828 0.050 0.031 <0.106 2.86 0.476 0.250 0 240 (.051) *oven-dried basis