Document pepg8a7oDojQ1Z62LN20go64d
PLAINTIFF'S EXHIBIT
Certairfleed
Dal
' . T
.;
December 18, 1980
Jack Anderson
CT-1419 LocatiorM^Mm^HMBj Hillsboro 257
Subject INDUSTRIAL hygiene survey "b" plant NOVEMBER 12-14, 1980
F,om T9~Janis Woodson'-' Jj
Location and mail code VF Corp #4
cc: F. Timpe - 2125/2B J. McGinley - 2125/2B D. Hall - 2125/2B
B. Blakeslee - 1126/00 N. Pocock - Hillsboro 257 O. Kittllstad - 1125/4
Attached find a completed log of the personal/area air samples and audiodosimetry results. These samples were obtained November 12-14 during the new B-Plant start up, with some follow-up air sampling and noise work done in A-Plant.
A total of 52 air samples were obtained with 44 being in B-Plant and 8 in A-Plant. One 20 minute sample (#171) taken on a Maintenance person was heavily loaded with particulate and an exact count was not possible, however, in order to determine an exposure level an attempt was made to count the sample. The results were found to be in excess of 61 f/cc. Insufficient data was obtained, therefore a TWA was not calculated for this employee. This sample was found to be above the current OSHA ceiling concentration of 10 f/cc.
Sample number 150 taken on the Mixer Operator for 60 minutes was found to be 4.6 f/cc. This employees time weighted average (TWA) was 1.1 f/cc. The current OSHA 8 hour time weighted average (TWA) is 2.0 f/cc.
Both of these samples (#150/171) were taken on employees involved in clean-up and repairing a block up at the Bag Opener flat conveyor. The Maintenance person (sample #171) was in the pit uhclogging raw fiber and putting It in plastic bags while the Mixer Operator (sample #150) was on the upper level emptying the bags back into the bag opener. All employees in the area wore 3M-8710 air purifying respirators.
While the current OSHA Asbestos Standard 1910.1001 d2(i) of the Federal Register (attached) requires only air purifying respirators for levels from 10-100 f/cc short term exposures, it is our recommendation that when a block up of this type occurs or when an exposure of this level is expected or unknown the employees involved should be outfitted with powered air purifying respirators or supplied air respirators (continuous flow or pressure demand).
All other samples taken during this survey were within the OSHA standard with only 2 other samples being above 1.0 f/cc (samples #153/#169). They were taken on the Mixer Operator (#153) and the Crusher Operator (#169). Both wore 3M-8710 respirators. It is recommended that any area/job position that exceeds 1.0 f/cc should be reviewed for possible engineering changes and monitored regularly for all sizes and classes of pipe to insure that the employees exposure remains below the 2.0 f/cc level. If a level of 2.0 f/cc or greater is found, respirators are required until an acceptable level is again achieved.
oi>s-oei
CTD020606
Hillsboro A/C Plant Industrial Hygiene Survey November 12-14, 1980
Also, more testing is needed at the Mandrel Handler job position. Of the 5 samples taken at this position during this survey, 4 were voided due to heavy particulate concentration. It is recommended that plant personnel sample this job position for personal and area exposures for an 8 hour shift, limiting each sample to no more than 60 minutes each.
The results of the audiodosimetry noise survey indicated 3 job positions with a daily dose percentage above 100% (90 dBA dosimetry). The current OSHA standard limits the daily noise dose to 100% with a 90 dBA dosimeter.
Those positions exceeding the 100% are:
Mandrel Handler (Sample 197) Relief Person (Sample 198) Crusher Operator (Sample 199)
185% 111% 193%
It is recommended that hearing protection be required for these job positions until proper and permanent noise controls can be instituted.
One thing to keep in mind when reviewing all of the sampling results from this survey, is that these samples were taken during a shakedown period and that these levels are not necessarily the same levels that would be found during normal operations. Continued surveillance and follow-up work of the new B-Plant by plant personnel, along with help from Corporate Health and Safety should be made. All equipment and operation changes and improvements should be noted when documenting the new exposure levels.
A complete and comprehensive survey report combining the May 27-30, 1980 survey and the November 12-14, 1980 survey is forthcoming detailing sample analysis and observations.
If you have any questions or comments don't hesitate to contact me.
JLW/tmf
CTD020607
Hillsboro A/C Plant Industrial Hygiene Survey November 12 - 14 1980
No* POSITION/ 80 LOCATION
(Date)
NAME/AREA
142 #1 Boring
J. Slovk
Kill Operator
(11/14/80)
143
144 #1 F M Lathe A Coaster Operator (11/14/80)
145
146 #1 F H Lathe T. Brown Helper (11/14/80)
147
148
Large Coupling
J. Foster
Saw and
Rework Saw
Operator
(11/14/80)
149
nrTable
Personal Dust Exposures "A" Plant
ANALYSIS FOR
TIME
MIN.
Fiber
7:50a 11:45a
235
Fiber Fiber Fiber
11:45a 3:00p
195
7.55a 10:00a
125
10:00a 3:05p
305
8:20a 10:00a
100
10:00a 3:10p
310
8:00a l:35p
335
l:35p 3:05p
90
RESULTS F/CC
TWA REMARKS
FOR SAHPU PERIOD
0.29
Boring 6" cplgs
0.27
0.24
0.10 0.078
0.084
6' 1/4 length FM'e
0.11 0.16
0.15
VOID
0.55
6" 1/4 length FH'g
-
1/4 hour Coupling Sav 3 1/4 hrs. putting rings in couplings 1 1/2 hrs Rework Sav Void sample heavy
particulate
6* Rework
CTD020608
Hillsboro A/C Pipe Plant Industrial Hygiene Survey
November 12 - 14 1980
TABLE Pereonal Dust Exposures "BM Plant
No. POSITION/
NAME/AREA
80 LOCATION
(Date)
Manufacturing Department
150 Mixer Operator 11/13/80
R. Lacy
151
152 153
154
155 Machine Tender J. Owens 11/13/80
156
157
158 Control Operator 11/13/80
159
H. Cox
160
161 Mandrel Handler 11/13/80
162
C. Salinaa
163
ANALYSIS FOR
TIME
MIN.
Fiber
8:05a 9:05a
9:05a 9:35a
60 ' 30
Fiber Fiber Fiber
9:35a 11:20a
105
11:20a l:40p
140
l:40p 3:50p
130
8:15a 11:01a
166
11:01a 1:45p
1:45p 3:S5p
164 130
8:07a 11:00a
173
11:00a l:42p
162
1:4 2p 3:50p
128
8:10a 11:01a
171
11:01a l:46p
165
l:46p 3:55p
129
RESULT F/CC
TWA
REMARKS
FOR SAMPLE
PERIOD
4.6 0.26 0.36
6"150 pipe Helping unblock bucket elevator at Bag opener
Bag opener not working with 100Z efficiency having to silt Bags by hand One window to Bag opener open all the time i.i
1.0 0.46
Employee wore a 3M 8710 Respirator throughout the entire shift.
0.21 0.17
6"150 pipe 0.20
r
0.23
0.025 0.027
0.026
6"150 pipe vlsable mist at press section
0.026
0.11
6"150 pipe
VOID VOID
-- Void sample * heavy particulate
Steamy area feel mist In air
Void sample ~ heavy particulate
CTD020609
Hillsboro A/C Pipe Plant Industrial Hygiene Survey November 12-14 1980
TABLE Personal Dust Exposures "B" Plant
No. 80 164
165
POSITION/ LOCATION (Date)
Take off Person 11/13/80
NAME/AREA J. Payne
ANALYSIS FOR
TIME
MIN.
Fiber
10:35a 1:35a
180
l:35p 5:00p
205
RESULT
REMARKS
F/CC
TWA
0.022 0.022
0.022
6"150 pipe Trayloader
166 Relief Person 11/13/80
167
R. Pavelka
Miscellaneous Departments
168 Crusher Operator 11/13/80
C. Harris
169
170
Fiber
10:26a l:52p
206
1:52p 5:00p
188
Fiber
8:45a 10:36a
111
10:36a 12:00N
1:30p 2:50p
84 80
0.13 0.15
0.14
6*150 pipe
0.36 1.7 0.37
0.78
Secondary Crusher Block-up 8:45a - 9:30a
Employee wore a-3M 8710 Respirator throughout entire shift
171 Maintenance Person 11/13/80
M. Ruda
Fiber
8:42a 9:02a
20
>61*
Working on a mixing system Block-up at flat conveyor for the Bag opener. All employees In the area wore 3M 8710 Respirators
172
9:02a i S3
0.32
at water treatment
9:55a i
slurry tank.
* Note - filter heavily loaded with particulate actual count would bt greater than 60f/cc.
CTD020610
Hillsboro A/C Plant Industrial Hygiene Survey November 12-14 1980
Table Environmental Dust Exposures "B" Plant
No. POSITION/ 80 LOCATION
(Date)
NAME/AREA
173 Fiber Warehouse Area 11/12/80
174 Bag Opener
Area
at Compactor
11/12/80
175
176 Bag Opener at Control Panel 11/13/80
177
Area
178
179
180 Mixer Operator's Desk 11/12/80
181 Willow Mill 11/12/80
182
Area Area
183 Willow
Mill 11/12/80
Area
ANALYSIS FOR
TIME
Fiber
11:04a 2:03p
Fiber
11:00a l:47p
Fiber
l:47p 4:13p
8:30a 9:02a
9:02a 9:37a
Fiber
9:37a 11:15a
11:1Sa l:37p
11:52a 2:46p
Fiber
10:56a 11:40a
2:03p 4: lOp
Fiber
8:27a 10:21a
MIN. 179
167 146
32 35 98 142 174 44 127 114
RESULT
TWA for Sample period
REMARKS
0.050
pump 4* from floor setting on a pallet of ML 6 fiber -- located near the Bag opener. all doors In area open
0.39 0.41
6*150 pipe
2 windows on Bag Opener open, pump sitting on Bag Compactor 1' from window 2f from platform
0.23 0.65 0.43 0.70
no dump made. 1 window, nearest control panel, open.
-- one dump made 1 window nearest control panel open
t
pump setting at control panel 1' from window 4' from platform
0.16 0.24 0.13 0.22
1 1 ' pump setting 4' from floor after clean up of fl-#2 mixer area
nail leak In Willow Hill -- -- 11:30 leak fixed 11:30 - 11:50 block up/ cleanup t2 mixer area
sample taken to measure effectiveness of repair work made to stop leak on Willow Mill
~ more sealing/repair work done on Willow Mills
CTD020611
Hillsboro A/C Plant Industrial Hygiene Survey November 12 - 14 1980
Table Environmental Dust Exposures "B" Plant
No. POSITION/ 80 LOCATION
(Date)
184 Fiber Scale 11/12/80
1 185 2nd
Floor Mixer 11/12/80
186
NAME/AREA Area Area
187 Mixer #4/
Area
Wetting Screw
11/12/80
188
189 Control Operator's Station 11/12/80
190
Area
191 Mandrel Handler* s Station 11/12/80
i
192
Area
193 Stripper JStatlon 11/12/80
Area
ANALYSIS FOR
TIME
MIN.
Fiber
2:46p 4:12p
86
Fiber
11:10a l:57p
167
Fiber Fiber
l:57p 4:15p
138
11:13a 1:58p
165
l:58p 4:07p
129
11:30a 2:40p
190
Fiber
2:40p 4:16p
96
11:35a 2:40p
185
2:40p 4:17p
97
Fiber
12:00N 4:20p
260
RESULT
TWA for
Sample period
REMARKS
0.13
--
pump setting 3' from floor on fiber scale
0.25 0.21
--
pump located on 2nd floor hanging 3' from platform 20' above 1st floor
0.32 0.20
--
pump setting 1' from #4 mixer 2* above covered wetting screw.
0.023 0.047
pump approx 5' from Roil-up/Prees Section at operators station
*
VOID
VOID
--
0.0004
--
pump approx S' from Roll-up/Press Section at operators station Void sample - heavy particulate
Void Sample - heavy particulate,
No employees in area pump setting on Mandrel Return side on control panel approx. 4* from stripper
CTD020612
Hillsboro A/C Plant Industrial Hygiene Survey November 12 - 14 I960
TABLE ______ _ Audiodosimetry Results "B Plant"
NO. BO
position/ LOCATION (Date)
NAME
_______________ _
Manufacturing Department
194 Mixer Operator (11/13/00)
R. Lacy
TIME
Min.
10:15a 3: 5 Op
335
RESULTS Eight Hour %
Dosimeter 05 dBA | 90 dBA
87%
195 Machine Tender (11/13/60)
196 Control Operator (11/13/80)
197 Mandrel Handler (11/13/80)
J. Owens H. Cox C. Salinas
10i22a 3iS5p
333
10:30a 3:50p
320
10:33a 3t 55p
322
85%
--
185%
196 Relief Person 11/13/90
R. Pavelka
Miscellaneous Departments
199 Crusher Operator 11/13/80
C. Harris
10i26a 5i OOp
394
10:36* 12:00N
164
113 Op 21 50p
111% 193%
REMARKS
6"ISO pip* employee in Mixing Room-normal operations
6-150 pipe
VOID SAMPLE
6"150 pipe Mandrel Return behind employee accounting for most of his exposure.
This job position requires work in all areas of the Manufacturing Department
CTD020613
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CTD020614