Document B1RZkXvdaxjQmndJ1xEG0KoL
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MANAGER ENGINEERING FIELD KA. h. J. NELSON
r,,..-., `'ELi'EMSER 13, 1974
nw '-17 GEE SAFETY WOOD RIVER REFINERY
.uiject ASBESTOS SAMPLING SUMMARY
To monitor the effectiveness of the asbestos handling procedures instituted in 1972, samples of work activities were taken during May and July, 1974. The initial set of samples taken on May 30 involved demolition work at the old Distilling 2 area south of the Distilling 1. The work assigned involved removal of asbestos bearing materials from pumps and piping in the area immediately north of the old Distilling 2 control room. This was grade level work and the refinery practice for handling asbestos bearing materials was used. Two Insulators were assigned, Mr. Meiners and Mr. Pence. In reviewing their activities, it will be noted that sample nos. WRR-5 and WRR-6 exceed the maximum fiber count of 10 fibers per milliter of air by 2.72 and 3.3 fibers. In addition, the time weighted averages of 4.2 and 4.9 are higher than we would anticipate but do not exceed the allowable standard of 5 fibers per milliter of air. From observation of field activities, it was anticipated that more dusts were being generated than necessary. More water was used in wetting down and better handling procedures were used on the next day, May 31. Test results reflect this improved handling.
A second set of samples was taken on July 25 and 26 reviewing job procedures to assure adherence to refinery practice. Work performed was similar to the May test and in the same area. It should be noted that greater emphasis on normal refinery practice brought all sample results below maximum fiber counts of 10 fibers and the current time weighted average standard of 5 fibers and the future time weighted average standard of 2 fibers (effective July; 1976). These tests again reaffirm that control of this activity is necessary to meet requirements. The following steps are necessary for control:
1. Have pressured water hose,on the job site at all times while removing asbestos.
2. Wet down asbestos before dropping it'(by hand line) to ground, keeping ground wet in area of drop.
3. Wet down asbestos after it is on the ground and before bagging.
In the light of these results, we suggest that the training program completed in 1972 by Mr. Jim Thompson, Craft Supervisor, Field Craft Group, be repeated in the immediate future and that all employees (including foremen) exposed to asbestos bearing materials (Insulators) participate in this training. We would be happy to offer any assistance in course composition, material, and/or presentation that you deem necessary in executing this program. We would request that attendance at these meetings be documented and a copy of this training attendance be forwarded to the Safety Department.
LAM 019520
ABS-000331
MANAGER ENGINEERING FIELD MR. C. J. LELSCN
In addition to the above Insulator testing, we received a request from the Tinners to evaluate the exposure to cutting asbestos gasket bearing materials in the Tin Shop. Included in these results is one test for Mr. A. Fritzche, Tinner 1. We have determined by this evaluation that no exposure exists in this activity. These results have been conveyed to Mr. Fritzche and the ether Tinners at the time the test results were available.
If we can be of further assistance in this area, please let us know.
BLB/mah Attachments cc-Messrs. P. E. Slack
J. D. Terry H. G. Rollins Safety Department File
LAM 019521 ABS-000332
RE: CONVERSATION ROLL INS / El !S HOUSES'/PENCE SHOWER TIME
''.}
Received a call from Mr. Emshousen approximately 1:30 p.m. on Thursday, September 5, 1974, requesting a conversation on the subject of shower time. " I met Mr. Emshousen and Mr. Pence at the Lube Zone Shop and invited them to join me in my car. Mr. Emshousen referred to Mr. Willens, Illinois Department of Labor Industrial Hygienist, visit of March 21, 1972. Bonnie sited the conversation between Willens/Rollins/Emshousen alleging 80Z shower time for the Insulators (asbestos workers). I reviewed with Mr. Emshousen and Mr. Pence that Mr. Willens visit was to relate to the exposure of our Insulators to asbestos bearing materials. The conversation referred to by Mr. Emshousen covered our practice at that time of giving approximately 80% of the crew shower time for work with asbestos bearing materials. We, however, did not cover the subject of non-asbestos bearing materials.
Bonnie eluded to a conversation during '72 negotiations with Mr. Kastner and the contract in which asbestos workers should be given shower time 1002 of the time regardless of the material that they were working with. He reiterated recent experience where Engineering Field had tightened up on shower time and they were down 302. When asked what the present level of shower time was, he indicated it was 702. The percentages quoted indicate the number of the crew who are receiving shower time each day. After numerous words, it was agreed that Mr. Rollins would review with Mr. Nelson. Mr. Nelson would have a conversation with Mr. Emshousen covering the results of recent asbestos testing, the role of shower time for this activity, and plans for an Insulator training program covering asbestos procedures. Included in the training program should be clarification on when asbestos procedures should be utilized, i.e. recovering asbestos bearing insulation when the procedures justify this expenditure in craft time.
HGR/mah 9/12/74
cc-Messrs. E J. Nelson P. E. Slack J. D. Terry H. G. Rollins
Safety Department File
LAM 019522 ABS-000333
SUMMARY ASBESTOS MONITORING RESULTS
OLD DISTILLING if2 .
5/30/74
5/31/74
4.925
1.14
V 4.23
2.50
\
7/25/74
0.33 0.45
7/26/74 3.66-
1.8
GASKET CUTTING TABLE TIN SHOP
5/16/74 0.072
lam 019523
ASBESTOS SAMI LLP MAY ?G, 157/-
PENCE - INSULaTO- , EMPLOYEE NO. IEEl
TIME 0800-0820
SAMPLE NO. out of area.
LEVEL 0
EL.` PS ED 7 THE x FLOW***
20 x 0
0820-0900 0900-10:00 10:00-11:00 11:00-12:00
WRR-1 WRR-3 WRR-5 WRR-7
2.72 7.65 \ 12.72 0.47
40 x 2 60 x 2 V 60 x 2 60 x 2
CONCEN'TRAT FI BEUS 0 217.6 918.0 1526.4
56.0
12:30-13:30 13:30-15:00 15:00-16:05 16:05-16:30
WRR-9 WRR-11 WRR-13 out of area
5.62 1.38 3.26
60 x 2 90 x 2 65 x 2
674.4 248.4 423.8
0 4064.6
TWA = 4064.6 =4.23 fibers 8x60x2
*Fiber^> 5^6^/tnl air **Instrument calibrated at 2 liters per minute flov rate.
LAM 019524 ABS-000335
TIME 0800-0820 0820-0900 0900-1000 1000-1100 1100-1200 1200-1230 1230-1330 1330-1500 1500-1605 1605-1630
ASBESTOS SAMPLES
MAY 30. 197') MEINERS - INSULATOR ;/l
EMPLOYEE NO. 8315
SAMPLE NO.
LEVEL
ELAPSED TIME x FLOW***
out of area
WRR-2
5.77
WRR-4
4.68 v
WRR-6
13.30
0 40 X n 60 X 2 60 X 2
WRR-8 out of area WRR-10 WRR-12 WRR-14 out of area
9.82
1.50 0.50 5.08
60 X 2 0
60 X 2 90 X 2 65 X 2
CONCENTRATION FIBERS
461.6 561.6 1596.0 % 1178.4
180.0 90.0
660,4
4728.0
TWA = 4728 = 4.925 8x60x2
*Fiber^ 5/^ /ml air **Instrument calibrated at 2 liters per minute flow rate.
LAM 019525 ABS-000336
TIME 0800-0900 0900-1000 1000-1100 1100-1200 1200-1230 1230-1330 1330-1430 1430-1530 1530-1605
SAMPLE NO.
ASBESTOS SAiLPLES
MAY'31, 1974
PENCE - INSULATOR Si
EMPLOYEE NO. 1S86
7
ELAPSED
LEVEL
TIME x FLOW**
WRR-15 WRR-17 WRR-19 WRR-21 out of area WRR-23 WRR-25 WRR-27 WRR-29
0.15 0.30 1.99 3.18
3.92 0.14 9.87 0.78
60 x 2 60 x 2 \60 x 2 60 x 2
60 x 2 60 x 2 60 x 2 35 x 2
CONCENTRATION
FIEERS
*
IS 36 238. S 381.6
%
470.4 . 16.8 1184.4
54.6 2400.6
TWA = 2400.6 = 2.50 8x60x2
*Fiber^> 5^/ral air **Instrument calibrated ac 2 liters per minute flow rate.
LAM 019526
ABS-000337
TIME 0800-0900 0900-1000 1000-1100 1100-1200 1200-1230 1230-1330 1330-1430 1430-1530 1530-1605
ASBESTOS SAMPLESMAT 31, 1974
MEINEP.S - INSULATOR fll EMPLOYEE NO. 8315
SAMPLE NO.
LEVEL
ELAPSED TIME x FLOW**
WRR-16
0.73
60 x 2
WRR-18
0.45
60 x 2
WRR-20
1.71
'60 x 2
WRR-22
0.76
60 x 2
out of area
WRR-24
2.23
60 x 2
WRR-26
0.20
60 x 2
WRR-28
2.71
60 x 2
WRR-30
0.37
35 x 2
CONCENTRAT ION FIBERS 93.6 54.0 205.2 91.2
273.6 24.0
325.2 25.9
1092.7
TWA = 1092.7 = 1.14 960
*Fiber^> 5^/ml air **Inscrument calibrated at 2 liters per minute flou race.
LAM 019527 ABS-000338
TIME
0800-1000 1000-1200 1200-1230 1230-1400 1400-1610 1610-1630
SAMPLE NO.
ASBESTOS SAMPLES JUwY 25, 1974
W. 5YDALL - INSULATOR
EMPLOYEE NO. 7702
i
LEVEL
ELAPSED TIME x n.rnv**
WRR-31 WRR-34 out of area WRR-35 WRR-37 out of area
0.27 0.41
\\
0.62 0.62
120 X 2 120 x 2 \
90 >: 2. 130 x 2
CONCENT RAT ION FIBERS
64.S 98.4
111.6
*
161.2
436
TWA = 436 = 0.45 960
*Fiber^> 5^/ml air **Instrument calibrated at 2 liters per minute flow'rate.
LAM 019528 ABS-000339
TIME
0800-1000 1000-1200 1200-1230 1230-1400 1400-1610 1610-1630
ASBESTOS SAL/LP
JULY 2:s
C7 '
A. EMSHOUSEN - INSULATOR
EMPLOYEE N'O. 2016
SAMPLE NO.
LEVEL
ELAPSED TIME x FLOW**
WRR-32 WRR-33 out of area WRR-36 WRR-38 out of area
0.26 0.32
\
0.73 0.19
120 x 2 120 x 2
90 x 2 130 x 2
'
CONCENTRATION FIBERS
62.4 76.8
131.4 49.4
320
TWA = 320 960
= 0.33
*Fiber ^ 5/^/ral air **Instrument calibrated at 2 liters per minute flow rate.
LAM 019529 ABS-000340
TIME 0800-1000 1000-1200 1200-1230 1230-1410 1410-1610 1610-1630
ASBESTOS SAMPLES JULY 26,1974
W. SYDALL - INSULATOR EMPLOYEE MO. 7702
SAMPLE NO.
LEVEL
ELAPSED TIME x FLOW**
WRR-39
0.50
120 x 2
WRR-41
1.74
120 x 2
out of area \
WRR-44
\ 2.13
100 X'2
WRR-45
3.23
120 x 2
out of area
CONCENTRATTON
FIBERS
*
120.0
417.6
426.0 775.2
1738.8
TTTWTAA = 1n7iO38.8O =1.8 960
*Fiber^> 5 /Z^/ral air **Instrument calibrated at 2 liters per minute flow rate.
lam 019530 ABS-000341
ASBESTOS SAMPLES MAY 16, 1974
A. FRITZCHE - TINNER i?l EMPLOYEE NO. 1SS3
TIME
SAMPLE NO.
LEVEL
ELAPSED TIME x '/LOW**
0300-0920
out of area
0920-0940
WRR-1
0940-0945'
out of area
0945-1015
WRR-2
1015-1045
WRR-3
1045-1100
out of area
1100-1140
WRR-4
1140-1235
out of area
1235-1300
WRR-5
1300-1330
WRR-6
1330-1400
VTRR-7
1400-1430
WRR-8
1430-1500
WRR-9
1500-1530
WRR-10
1530-1630
out of area
TWA - 69.4 = 0.0722 960
0.14 \
0.20 0.16
0.15
0.10 0.09 0.09 0.08 0.07 0.09
20 x 2
30 x 2 30 x 2
40 x 2
25 x 2 30 x 2 30 x 2 30 x 2 30 x 2 30 x 2
*
*Fiberp> 5 Xijm-l air
CONCENTRAT TON EIDERS
5.6
12.0 ' 9.6
.12.0
5.0 5.4 5.4 4.8 4.2 5.4
69.4
**Instrument calibrated at 2 liters per minute flow rate.
LAM 019531 ABS-000342
INDUSTRIAL HYGIENE REPORT OF REFRACTORY REMOVAL FROM #27 BOILER
SULPHER RECOVERY UNIT APRIL 19, 1934
BACKGROUND
v
As part of the Shell major projects, Insulating and Materials was requested to remove asbestos containing refractory materials from the north end of #27 Boiler in theSulpher Recovery Unit (SRU). The material being removed had been used to seal the head of the boiler.
A bulk sample of this material was obtained and analyzed on April 18, 1984. The analysis indicated an asbestos content of approximately 15%. Because of the asbestos content careful removal procedures were utilized. The two insulators were trained in asbestos removal techniques and are experienced in removal work. Appropriate protective equipment was provided and worn during the removal. The protective equipment was as follows. 1) disposable coveralls with hood, 2) MSA Comfo II 'with type S cartridge and, 3) gloves. Prior to starting the job both employees were observed and instructed by the MPO industrial hygienist in conducting positive and negative pressure fit test of the respirator face piece.
The material removed was a hard refractory material that
-1-
LAM 019532 ABS-000343
required the use of chisels and hampers tc
loose. Dusting
was reduced by periodically wetting the refractory material with
y
water. Egg sized pieces were removed and immediately placed in
appropriate plastic bags.
This greatly reduced area
contamination. The work platform was also covered with a plastic
covering to catch falling debris.
INDUSTRIAL HYGIENE MONITORING
To evaluate exposure to the insulators performing the removal and potential exposure to the area two personal and two area samples were obtained. Sampling was conducted on April 19, 1984, during active removal and represents worst case conditions. At the beginning of the removal one employee removed a small portion of the refractory material without wetting. His exposure was 0.063 fibers/cc. This employee's exposure was significantly greater than the second (0.005 :fibers/cc) employee, who worked using wet methods during his entire exposure. Both area samples were negative. Table I contains the results of this survey.
CONCLUSIONS
Because of- careful work practices employee and area exposure was minimal. The work area was cleaned up well after completion of the job, and no secondary exposure is expected.
- .2 -
LAM 019533 ABS-000344
TABLE I AIRBORN FIBER CONCENTRATIONS
SULFER RECOVERY UNIT Shell Wood River Refinery
April 19, 1984
\
Sample Number
Location
SRU-1
West side of control area
SRU-2
East side of control area
SRU-3
SRU-4
N.D.=None Detected
Fiber Concentration
(F/CC) N.D.*
N.D.
0.063
0.005
LAM 019534 ABS-000345