Document gbmMKqOQkjbmbrL0rpJg1dby9
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May 16, 1984
TO : $. _W. Ellis Jr FROM : David Horecka
DISMANTLEMENT & REARRANGEMENT ASBESTOS REMOVAL - PERIPHERY,MONITORING
Monitoring was done on April 9, 1984 to ensure that the barricaded boundaries around the old Nylon block are below the TLV for Asbestos of 0.5 fibers/cc > 5 microns/cc in length. Samples were taken downwind of the project. Five "spot checks" were made to allow for variations in weather data and work load changes. (Sample location and weather data are noted in Tables II and III.)
The samples were obtained using NIOSH Analytical Method P&CAM 239. Calibrated Dupont P-4000, and Bendix 44 high flow sampling pumps were used to pull ambient air through a 37 mm cassette with a Millipore AAWHP 0.8 um MCE filter in line. Airborne Asbfestos fibers were trapped'on the filter.
The cassettes were analyzed by the Clayton Environmental Consultants, Inc. for Asbestos fibers greater than 5 Microns in length (fibers/filter). The results show that Asbestos periphery levels are well below the TLV (Table I).
DU 009796
DUP 0814438
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DU 009797
CLAYTON ENVIRONMENTAL CONSULTANTS. IN C .
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-ASBESTOS REMOVAL PERIPHERY MONITORING
iu p o n t P-4000 H igh F low S am pling Pump Was Used. B endix 44 H ig h Flow S am pling Pump Was Used.
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DU 009798
DU 009799
TABLE III .............'WEATHER DATA
. SSni_sj).;' SA i t) ,~x5rt h L'i$..'-HpH
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33 33 33 3 I
L2-. 10-400
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13>ftQu
157 , 320
.OC.1457 ...00.. 14.4 7
14,400 . -. a* 40.0
...1.74 *,240 -- =->02280
.00 1427
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200152c
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8.000
1421200
; 20. ' 232 ... 14.800,
194.760
2 J.0C '1347 : : i.i. 600 .08510 40
V no 1327,. .,; ,.13.400. ; 139.120
-6 . . 340- --------52511125..
87*900 ' n 29*132'
89.100"
29.136
88*200 1 .,,.29*.:ua..1--.
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29.146
88.500
29.150
3'.3150
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S7..900 29.162
88.200
29,1,62 .'7
27.000 28.90P7 .,29-*2.aa 28,100 29,000 95 , Rft.;,
26.000 31.200
170 131.7: . -J.1.BQ0. ,, X72..34 0
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12.800
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1 :l;,0 1157.. . 41*200; .,.,.. 205.200
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11.400
165.240
37.750 57.45<> 83,650 05 . .no
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34,800
29,190
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83.400
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DUP 0814442
DU 009800