Document bv40xeVzJdQ1xo3VXneEm1dD
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C4 < t*6>-2
n INTERNAL CORRESPONDENCE Si
CHEMICALS AND PLASTICS
P 0. BOX K. KING CITY. CALIFORNIA 93930
r(NM)Mr. Paul V. McDaniel ohuem Medical Department
4th. floor, room 202 New York
cmf L. F. Crow J. L. Myers pi A. Riddle
don October 29, 1969
D*pL
Aamrlag lth*r dot*
Monthly Dust Count Zing City Plant
Dear Mr. McDaniel:
Enclosed are the dust counts for the month of October at the King City plant. All samples were taken on 10/21/69 during swing shift. All circuits were operating, but the automatic palletizer was down.
Acosta
GA/clg end:
UC-4558
G. Acosta
10-21-69
DUST SAMPLE COMMENT: Weather - clear, winds - 15 MPH from North, Temp. 76F.
SAMPLE
COMMENT
AVE. +5M
TOTAL
#1 North Fence Line
A:45 pm - 76F
2.8 liters/min-10 min. Wind 15 MPH from North
2 19
#2 Same as #1
4:58 pm - 74F 2.8 liters/min-10 min.
3 27
#3 South Fence Line
5:28 pm - 72F 2.8 liters/min-10 min. Wind 17 MPH from North
6 ' 27
Same as #3
5:41 pm - 70F 2.8 liters/min-10 min.
1 16
#5 Beside Bagger Operator (Breathing Zone)
6:20 pm - 76F
2.8 liters/min-10 min. Palletizer not operating West door open-inside door open Wet dust return working, "bagging
SG-100 (pellets)
3
104
6 Same as #5
6:55 pm - 76F 2.8 liter/min-10 min.
20 58
f? Riding Front End Loader
7:25 pm - 64F 2.8 liters/min-10 min.
Wind 17 MPH from North Hauling ore from stockpile to #202 Hopper
13 97
8 Same as #?
7:40 pm - 64F 2.8 liters/min-10 min.
9 " 133
*9 End of Bag Conveyor 8:40 pm - 72F 2.8 liters/min-10 min. Bagging room door open
Packaging SG-100 (pellets) Palletizer not operating
4 23
G. Acosta
10-21-69
Pg. 2................
SAMPLE
COMMENT
*10 Same as #9
8:55 pm - 72F 2.8 liters/min-10 min.
Ol Rock Fiber-Refiner 9:35 pm - 72F
Mezzanine Area
2.8 liters/min-10 min.
0.2 Same as #11
9:45 pm - 72F 2.8 liters/min-10 min.
0.3 Filter Press Area
10:15 pm - 70F 2.8 liters/min-10 min.
04 Same as #13
10:28 pm - 68F 2.8 liters/min-10 min.
05 Packaging Area
10:50 pm - 69F
(Above Change Room) Bagging Room Door Open
Bagging SG-100 (pellets)
2.8 liters/min-10 min,
06 Same as #15
11:02 pm - 68F 2.8 liters/min-10 min.
AVE. +5M 2
TOTAL 16
3 67 1 15 ' 2 16 2 12 1 . 26
3 21
n
G. Acosta 12-17-69
DUST SAMPLE
COMMENT: December 12, 1969* Weather - clear, no winds, temp. 68F.
! SAMPLE #1 North Fence Line #2 Same as #1 #3 South-Fence Line
#4 Same as #3
#5 Packaging Area (Above Change Room)
#6 Same as #3
#7 Rock Fiber Refiner
(Mezzanine Area) #8 Same as #7 #9 Area Around Palletizer
COMMENT
AVE. +5M
1:55 pm - 68F 2.8 liters/min. 10 min.
2
2:08 pm - 68F 2.8 liters/min. 10 min.
2
3:00 pm - 65F 2.8 liters/min. 10 min. Wind 5 MPH from Northwest
1
3:12 pm - 65F
2.8 liters/min. 10 min. Wind 5 MPH
2
4:13 pm - 70F
2.8 liters/min. 10 min. North door open - all circuits operating bagging room door open - floors in mill building being swept.
4
4:28 pm - 69F 2.8 liters/min. 10 min. Same conditions as #5
5
4:55 pm - 71F 2.8 liters/min. 10 min.
3
5:07 pm - ?0F 2.8 liters/min. 10 min.
4
5:30 pm - 69F 2.8 liters/min. 10 min. West door open. Inside door openpalletizer operating-bagging SG-130 wet dust return operating-using Stoker & Black baggers.
7
TOTAL 17 20
- 19 19 27
24 54 24 37
>
G. Acosta 12-17-69
pg. 2--
SAMPLE #10 Same as #9
COMMENT
5:45 pm - 69F 2.8 liters/min. 10 min
AYE. +5M 13
COMMENT: December l8, 1969. Weather - cloudy, wind 5 MPH from Southwest.
#11 Filter Press Area
4:30 pm - 72F 2.8 liters/min. 10 min.
1
#12 Same as #11
4:43 pm - 71F 2.8 liters/min. 10 min.
6
#13 Riding Front End Loader
5:00 pm - 6lF 2.8 liters/min. 10 min. Wind 10 MPH from Southwest
20
#14 Same as #13
5:15 pm - 6lF 2.8 liters/min. 10 min. Same wind condition as #13
22
#15 Beside Bagger Operator
5:40 pm - 70F 2.8 liters/min. 10 min. Bagging SG-130 using both baggersinside west door open, palletizer working-wet dust return working.
21
#16 Same as #15
6:05 pm - 70F 2.8 liters/min. 10 min. Same conditions as #15
22
TOTAL 46
25
30
193 171
45
73
GA/clg
12-31-69
. Acosta -31-70
UST SAMPLE
OMMENTs July 27, 1970. Weather-Clear, wind 27 nph from Northwest 75F.
SAMPLE L North Fence
' Sane as #1
5 South Fence
t Sane as #3
> Bagging Circuit
(At operators breathing zone)
Sane as #3
Front End Loader
Sane as Ifi
COMMENT
5:10 pm - 75F 2.8 liters/min., 10 min. Wind 27 mph northwest
PARTICLE COPNT
AVE. +5M
TOTAL
1 19
5:25 pm - 75F 2.8 liters/min., 10 min. Conditions same as #1
1 21
6:00 pm - 72F 2.8 liters/min., 10 min. Wind 30 mph northwest
1 ' 25
6:20 pm - 72F
2.8 liters/min., 10 min. Conditions same as #3
1 28
7:00 pm - 77F
2.8 liters/min., 10 min. Bagging HPP Inside door open-west door open Palletizer not operating Wet dust return running
7 30
7:15 pm - 77F
2.8 liters/min., 10 min. Same conditions as #5
8 48
7:30 pm - 66F
2.8 liters/min., 10 min. Wind 30 mph northwest Hauling from stockpile to 202 Hopper
9 49 /
7:45 pm - 66F
4
2.8 liters/min., 10 min.
Same wind condition Hauling from stockpile .to 202 Hopper 4-Min.
Leveling ore pile 6-Min.
Continued
40
. Acosta
-31-70
3. 2--------
SAMPLE *9 Packaging Area
(Above Change Room) .0 Sames as #9
.1 End of Bag Conveyor
2 Same as #11
June 28, 1970 3 Filter Press Area
4 Same as #13
5 Rock Fiber-Refiner
0 Same as #13
COMMENT
9:20 pm - ?0F
2.8 liters/min., 10 min. 9:40 pm - 70F 2.8 liters/min., 10 min.
10:00 pm - 65F 2.8 liters/min.. 10 min.
10:15 pm - 65F 2.8 liters/min., 10 min.
4:35 pm - 82F 2.8 liters/min., 10 min.
4:50 pm - 82F 2.8 liters/min., 10 min.
5:10 pm - 84F 2.8 liters/min.i 10 min.
5:25 prn - 84F 2.8 liters/min., 10 min.
PARTICLE COUNT
AVE. +5M
TOTAL
2 26
2 25
3 27 4 23
2 22
1 - 19
3 19 2 18
G. Acosta 6-29-70
DUST SAMPLE
COMMENT: June 22, 1970
Weather-clear, wind 17 mph from Northwest 80.
Collected by G. Acosta
SAMPLE #1 Packaging Area
(Above Change Room)
#2 Same as #1 #3 Rock Fiber-Refiner
(Mezzanine Area) #4 Same as #3 #3 Front End Loader
6 Same as #3
? North Fence Line
?8 Same as t7
f*9 South Fence Line
COMMENT
4:20 pm - 80F 2.6 liters/min., 10 min. North door open - bagging room door open Bagging HPP
PARTICLE COUNT
AVE. +3M
TOTAL
1 37
4:33 pm - 80F 2.8 liters/min., 10 min.
1 ` 4l
5:00 pm - 8lF
2.8 liters/min., 10 min. Both East doors open
2 18
9:30 pm - 75F 2.8 liters/min., 10 min.
1 11
5:20 pm - 78F
2.8 liters/min., 10 min. Wind 20 mph Northwest Hauling from stockpile to 202 Hopper Both loader doors open
1 4l ^
5:35 P* - 78F
2.8 liters/min., 10 min. Hauling from stockpile to 202 Hopper 5-min Leveling ore pile 5-oin.
8
51
6:00 pm - 73F 2.8 liters/min., 10 min. Wind 25 mph Northwest
1 10
6:20 pm - 73F 2.8 liters/min., 10 min.
3 13
6:45 pm - 70F 2.8 liters/min., 10 min. 20 mph Northwest
1 34
continued.
G. Acosta 6-29-70 Pg. 2....
SAMPLE #10 Sane as #9
COMMENT 7:00 pm - 70F 2.8 liters/min., 10 min.
PARTICLE COUNT
AVE. +5M
TOTAL
2 10
COMMENTS: June 23, 1970
All circuits running, collected by R. Bowman
#11 Filter Press Area
#12 Same as #11
#13
Bagging Circuit (At Bagger Operators
breathing zone)
#14 Same as #13 #15 End of Bag Conveyor
'16 Same as #13
9:50 pm - 79F 2.8 liters/min., 10 min.
10:15 pm - 79F 2.8 liters/min., 10 min.
12:10 am - 60F 2.8 liters/min., 10 min. Bagging HPO Wet dust return running. Palletizer not operating.
12:30 am - 60F 2.8 liters/min., 10 min.
12:50 am - 56F 2.8 liters/min., 10 min. Bagging HPO
1:05 am - 56F 2.8 liters/min., 10 min.
1 13 1 24 2 ' 18
5 20 3 11 3 13
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G. Acosta 1-27-70
DUST SAMPLE
COMMENT: January 27 1970* Weather - clear, wind 35 mph from north.
SAMPLE #1 North Fence Line #2 Same as #1
South Fence Line
Same as #3
COMMENT
12:38 pm - 52F 2.8 liters/min., 10 min. Wind 35 mph from north, clear '
12:55 P - 52F 2.8 liters/min., 10 min. Wind 35 mph from north, clear
3:38 pm - 50F 2.8 liters/min., 10 min. Wind 40 mph from north, clear
3:52 pm - 50F 2.8 liters/min., 10 min. Same conditions as #3
PARTICLE COUNT
AVE. +5M
TOTAL
1 19
1 13
1 30
1 20
Inside Conditions - palletizer in operation. Wet dust return not operating. Bagging BPO - T. West door open.
#5 Palletizing Area
4:25 pm - 64F 2.8 liters/min., 10 min.
4 173
Same as #3
4:45 pm -- 64F 2.8 liters./min., 10 min.
5 227
#7 Bagger Operator (at his breathing zone)
5:10 pm - 65F 2.8 liters/min*, 10 min.
9 167
#8 Same as #7
5:35 pm - 65F 2.8 liters/min., 10 min.
17 209
#9 Bock Fiber Befiner
7:00 pm - 72F
4
2.8 liters/min., 10 min.
All doors open Ti02 being dumped into circuit next to refiner circuit.
61
#10 Same as #9
7:27 pm - 72F
2.8 liters/min., 10 min. Same conditions as #9
2 55
~. /.
G. Acosta 4-28-70
DUST SAMPLE
COMHENT: April 24, 1970. Weather - clear, wind.11 mph iron north, 52F.
SAMPLE #1 Rock Fiber-Refiner
(Mezzanine Area}
#2 Same as '#1
#3 Filter Press Area
#4 Same as #3
#3 Palletizing Area
#6 Same as #5
#7 Packaging Area (above changing room)
#8 Same as t?
COMMENT
8:45 pm - 69F 2.8 liters/min., 10 min. Door to bagging room open
1 I
9:02 pm - 69F 2.8 liters/min., 10 min. Door to bagging room open
9:20 pm - 70F
2.8 liters/min., 10 min. Door to R-G 244 bagging room closed
9:33 pm - 70F
2.8 liters/min., 10 min.
Same conditions as if3
9:50 pm - 70F
2.8 liter6/min., 10 min.
West door closed, inside door open
pallet!zer operating-bagging SG-144
with both mills & baggers-wet dust
return working.
..
10:05 pm - 70F 2.8 liters/min., 10 min. Same conditions as #5
11:05 pm - 69F 2.8 liters/min., 10 min.
11:20 pm - 69F 2.8 liters/min., 10 min.
PARTICLE COUNT
AVE. +5M
TOTAL
1 52
1 * 54
2 21 2 26
9 . 55
7 .45 2 28 1 20
. continued!
G. Acosta 4-28-70 Pg. 2....
COMMENTS: April 25, 1970.. Weather - clear, wind 35-40 mph from north, 66F All circuits operating
SAMPLE #9 North Fence Line
#10 Sane as #9 #11 Front End Loader
#12 Same as #11
#13 South Fence Line #14 Same as #13
&5 Bagging Boon (at operators breathing zone)
#16 Same as #15
COMMENT
4:15 pm - 66F 2.8 liters/min., 10 min. Wind 35-40 mph from north loading 2 ttucks at truck dock
4:30 pm - 66F 2.8 liters/min., 10 rain. Same conditions as #9
5:15 pm - 62F 2.8 liters/min., 10 min. Wind 22 mph from north Hauling from stockpile to #202 hopper
5:30 pm - 6lF 2.8 liters/min., 10 min. Wind 22 mph from north
6:10 pm - 58F 2.8 liters/min., 10 min. Wind 20 mph from north
6:22 pm - 57F 2.8 liters/min., 10 min. Wind 20 mph from north
9:30 pm - 72F 2.8 liters/min., 10 min. Bagging SG-130, 4 broken bags .using both mills & baggers wet dust return working. West door closed
9:50 pm - 72F 2.8 liters/min., 10 min. Same conditions as #15* only 1 broken
bag
AVE. +5M 3
TOTAL 19
1 32 7 137
4 1 1 - 44
104 10 25
114
50 144
/clg
DUST SAMPLES August 1970
"F" - Freon Sampler) Samples were collected side by 6ide at same time. "P" - Electric Pump)
8-12-70 SAMPLE
J Beside bagger Operator
.p Same as #1F
COMMENT
2.8 liters/min., 10 min. Bagging Standard Grade. Bag broke during sampling period.
2.8 liters/min., 10 min. Same conditions as #1F
F Around Palletizer
2.8 liters/min., 10 min. Standard Grade Fiber
P Same as #2F
2.8 liters/min., 10 min. Same conditions as #2F
F South Fence Line Same as #3^
2.8 liters/min., 10 min. Variable winds, 0-6 MPH from West.
2.8 liters/min., 10 min. Same conditions as #3?
Wet End of Operation
Same as #4F
1 North Fence
(South edge of ponds)
2.8 liters/min., 10 min. Operation down, but bagger operating. Doors to bagger area open.
2.8 liters/min., 10 min. Same conditions as #4F
2.8 liters/min., 10 min. Wind from NU 10-18 MPH.
PABTICLE COUNT
AVE. +5M
TOTAL
1st 13 102 2nd 17 128
3rd 16 141
1st 2nd 3rd
20 197 22 * 185 26 211
1st 2nd 3rd
1st 2nd 3rd
9 5 5
6. 4 10
66 49 41
62 44 51
1st 1 25 2nd 0 15 3rd 1 21
1st Q 26 2nd 0 26 3rd 0 36
1st 0 24 2nd 0 28 3rd 0 26
1st 0 y*
2nd 0 39
3rd
0
*+3
1st 0 29
2nd 0 25
3rd
0
33
continued.
-2-
SAMPLE 5P Same as #5F
COMMENT
2.8 liters/min., 10 min. Same conditions as #3?
>F Beside Bagger operator
2.8 liters/min., 10 min. Standard Grade Fiber
iP Same as #6F
2.8 liters/min., 10 min. Same as conditions #6F
P General area
2.8 liters/min., 10 min. Outside building on south side during bagging Standard Grade fiber.
P Sample Contaminated (Taken-8-13-70)
2.8 liters/min., 10 min. Beside operator bagging EG 244
P Beside bagging operator 2.8 liters/min., 10 min.
(taken 8-13-70)
Bagging EG 244
PARTICLE COUNT
AVE. +5M
TOTAL
1st 2nd 3rd
1 1 0
25 34
23
1st 14 119
2nd 11 153 3rd 10 141
1st 16 111
2nd
9
96
3rd 10 126
1st 7 55
2nd 5 44
3rd
8
53
-
1st 2nd 3rd
3 ` 23 2 18
6 91
-24-70 'clg
DUST SAMPLES September 1970
COMMENT: Sept. 21, 1970. Veather-Clear, wind 20 mph from North 88F.
SAMPLE *1 North Fence Line
l2 Same as #1
<3 South Fence Line
<k Same as #3
-'5 Beside Bagger Operator (at his breathing zone)
> Same as #3
7 Palletizing Area
8 Same as 47
9 Packaging Area 0 Same as #9
COMMENT
2:25 pm - 88F 2.8 liters/min., 10 min. Wind 20 mph North
2:40 pm - 88F 2.8 liters/min., 10 min. Same conditions as #1
3:15 pm - 86F 2.8 liters/min., 10 min. Wind 22 mph North
3:30 pm - 86F 2.8 liters/min., 10 min. Same conditions as #3
7:20 pm - 82F 2.8 liters/min., 10 min. Bagging HPP
8;00 pm -82F 2.8 liters/min., 10 min. Same conditions as #5
8:20 pm - 70F 2.8 litere/min., 10 min. West & South doors open -
8:40 pm - 74F 2.8 liters/min., 10 min. Same conditions as 47
9:00 pm - 80F 2.8 liters/min., 10 min.
9:15 pm - 8oF
2.8 liters/min., 10 min.
PARTICLE COUNT
AVE. +5M
TOTAL
1 15- -
2 12
2 13 3 20 9 28 8 37
3 26
3 15;
1 .5
2 10
continued
) SAMPLE
.1 Filter Press Area
2 Same as #11
COMMENT
11:05 pm - 80F 2.8 liters/min., 10 min* Mill making Standard Grade Product
11:20 pm - 80F 2.8 liters/min., 10 min. Same conditions as #11
COMMENT: Sept. 22, 1970. Weather-55F, Wind 10 mpk jbrtheast.
3 Bock Fiber & Befiner (Mezzanine Area)
+ Same as #13
5 Front End Loader
Same aa #15
6:45 am - 66F 2.8 liters/min., 10 min. Mill making Standard Grade Product
7:04 am - 66F 2.8 liters/min., 10 min. Same conditions as #13
7:20 am - 55F 2.8 liters/min., 10 min. Wind 10 mph Northeast
7:35 am - 55F 2.8 liters/min., 10 min. Same conditions as #15
-2
PARTICLE COUNT
AVE. + 5M
TOTAL
12 48
4 33
4 36 2 40
28 : 131
30 124
DUST SAMPLES October 1970
. SAMPLE I1'
#1 North Fence Line #2 Same as #1 #3 South Fence Line
Ijk Same as #3
#5 Rock Fiber & Refiner Mezzanine Area
?6 Same as #5 7 Packaging Area
$ Same as #7
*9 Filter Press Area 0 Same as #9
^c5 ^COMMENT
~2;30 pm - 66F 2.8 liters/min., 10 min. Y/ind 3 mph from North
2:45 pm - 66F 2.8 liters/min., 10 min. Same conditions as #1
3:10 pm - 68F 2.8 liters/min., 10 rain. V/ind 5 mph from North
3:25 pm - 68F 2.8 liters/min., 10 min. Same conditions as #3
5:50 pm - 68F 2.8 liters/min., 10 min. Making Standard Grade Product Both East Doors Open.
6:05 pm - 68F 2.8 liters/min., 10 min. Same conditions as #5
6:25 pm - 68F 2.8 liters/min., 10 min. Bagging Room Door Open North Door Open
6:40 pm - 69F 2.8 liters/min., 10 min. Bagging Room Door Open North Door Closed
7:50 pm - 70F 2.8 liters/min., 10 min.
8:05 pm - 70F 2.8 liters/min., 10 min.
PARTICLE COUNT
AVE. +5M.
TOTAL
3/ m 13 ^
2 16 2 13 2 . 15 4 21
2 21
4 10
3
4 2 Continued
18
28 15
''Octotcr 1970
" Duct Samples
SAMPLE *11 Palletizing Area
1.2 Same as #11
13 At Bagger Operators Breathing Zone
14 Same as #13
COMMENT
8:20 pm - 64F 2.8 liters/min., 10 min. Bagging Visbestos with Both Baggers Palletizer operating, inside door open, South Door Open.
8:35 pm - 64F 2.8 liters/min., 10 min. Same conditions as #11
9:00 pm - 65F 2.8 liters/min., 10 min. Bagging Visbestos with both baggers Palletizer & wet dust return operating South Door Open.
9:15 pm - 65F 2.8 liters/min., 10 min. Same conditions as #13
PARTICLE COUNT
AVE. +5H
TOTAL
20 78
10 40 63 173
57 123
GA/clg 10-26-70