Document bNxaBGGnjnwqwwYbJRX2EYvO
FILE NAME: Asbestos Cement Pipe and Sheet (ACPS) DATE: : DOC#: ACPS0 KhMENT DESCRIPTION:hZZW&Z
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ental Control Departmer. _
l.Jenver GHQ
July 20, 1972
PIPE FABRICATION
Date
4/10/72
( 1)
3/9/72
(2)
O2eration Power Machining
Power Machining
Count F/cc
0.6 0.4
28.0 24.0
Pipe Size
61' 8"
6" 8"
3/17/72
Power Machining
1.2
6"
(3;
4.1
S"
4/10/72
Manual Machining
0.4
4"
1.2
6''
0.4
3"
3/9/72
Manual Machining
13.7
4"
3.6
6"
20.0
8"
3/17/72
Manual Machining
2.5
4"
3.3
6"
2.5
8"
4/10/72
Hand Rasping
1.6
6"
~
1.2
8"
-t
OJ
0 3/9/72
Hand Rasping
8.2
6"
0.;:..
20.0
8"
0
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N 3/17/72
::a,1d Rasping
2. 5
5"
:2 . n..,
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Commemts
Sampled inside walkway - stronq
draft blowing away from operator.
Sampled outside - moderate to strong drafts present - Frequent swirling winds contaminated area Short sample time - not representative of the average concentration.
Sufficient sampling time.
Samp 1ed inside walkway - Strong draft blowing away from operator.
Same as item #2
Sameas item #3
Same as item #l Same as item #2 Sarne 2,s item #3
PRODUCED
JY - 8J
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PIPE FABRICATION Page 2
,luly 20, 197 2
Date 4/l0/72
Opera ti.on
Skil Saw
Count F/cc
4.1 2.9 4,5
Pipe Size
4u 6" 8"
Cmmuents
Same as item :JI l
3/9/72
Skil Saw
123.D
129.0 96.Q
4"
Same as item #2
6"
a
4/10/72 3/9/72
Hammer & Chisel (Tapping for Sewer
Saddle)
Hacnmer & Chisel (Tapping foe Sewer
Saddle)
1.2
19 .o
8"
Same as item ltl
8"
Sa!ne as i tern ii 2
3/17/72
Hammer & Chisel (Tapping for Sewer
Saddle)
8"
Same as i tern jf-)
3/9/ 7 2
Power Cutting wi~t
6.9'
Carbide Tip Blade
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9.9
4"
Same as item 4tZ
6"
. 8"
7
3/9/72
Hand Sawing
3.3
41
Sarne as item #2
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PRODUCED
JM .. 83