Document pmarM11dG97zmo499g4OXJwwX
SW-32-' 'C (RtV 4-79}
Shell Oil Company Shell Chemical Company
Interoffice Memorandum
SEPTEMBER 26, 1985
^3
"T ;'OL
FROM:
J.E. BARTON - INDUSTRIAL HYGIENE ASSISTANT DEER PARK MANUFACTURING COMPLEX
TO: B. DAVIS - EMPLOYMENT DEER PARK MANUFACTURING COMPLEX
SUBJECT: SILICA SANDBLASTING
Attached for your information are four letters addressing the issues of silica sandblasting at DPMC.
March 18, 1980 appears to be the date of implementing a substitution program for silica (see memos from R.P. Frutiger and J.D. Ransdell).
The July 13, 1978 letter outlines a recommended exposure prevention program which may be of relevance to the time period of concern.
For further reference, the October 2, 1984 letter represents current Industrial Hygiene recommendations regarding silica sandblasting at DPMC.
Please let me know if I can be of further assistance.
JEB/md
Attachments
cc: P.J. Snyder ECB Satellite JEB Chron
CHBT8526905
lam 016398
DPMC-13143
Shell Oil Cornp?.ny o Shell Chemical Co;pp3ny
Ir.l; icf!!ce morsrdum
MMRGH 18, 1980
FROM:
R. P. FRUT1GER
TO:
D. O. CHR1SMER, J. G. MASSEY
SUBJECT: SILICA
V
/
During the past two(2) years. Industrial Hygiene has continued their effort to assess the potential exposure resulting from sandblasting activities. The monitoring results show that although the abrasive blaster can be protected with an air-supplied hood, concentrations of free silica as far as 50-100 feet downwind of the work area can exceed the CSHA limits. Since inhalation of free-silica from sandblasting can produce chronic and progressive lung damage, elimination of the use of free-silica sand for sandblasting has been an objective.
Several substitute materials (free of silica and less toxic) have been found by the maintenance organizations and are currently being used by Shell and several of the maintenance contractors. The most commonly used substitute abrasive is Apache Blast(R)- This material is primarily oxides of iron, silicon, aluminum, and calcium and contains less than 1 percent free silica. As a result of the substitution program, it is now practical to establish the following guidelines for managing our sandblasting activities in a healthful manner:
. Substitute abrasives (such as Apache-Blast or. others approved by Maintenance and Safety and Industrial Hygiene) for sand shall be used:
(1) at the Maintenance North yard and at the Sline yard (the rabbit patch)
(2) in all operating areas (including tank farms) to avoid general exposure to other personnel
LAM 016399
Use of substitute abrasives is optional in areas that are remote from operating areas (e.g. greenbelt areas) providing the proper warning signs are posted'and personnel in the immediate area use an approved respirator.
At times, the supply of substitutes for silica sand have been inadequate. Where work cannot be delayed until a substitute material is available, silica sand rr.ay be used providing the following requirements are met:
\
DPMC-13144
r
i V. O. CHR1 S.'IER, J. G. .VASSEY
< 2
(1) All sand blasters must wear KIOSH approved air-supplied hoods.
(2) Warning signs must be placed around the work area and at least 100 feet downwind to prevent exposure of unauthorized personnel.
(3) Personnel in the perimeter shall wear respiratory protection at all times while sandblasting is in progress. A NIOSH-approved dust mask or air-supplied hood must be used by those not directly doing the blasting.
(4) Only authorized personnel with respirators should enter the restricted area.
We hope the above guidelines will help us manage our sandblasting activities in an effective manner. Please let me know if you have any questions.
cc: R. L. Brunner-One Shell Plaza G. C. Anderson M. T. Anderson J. K. Bagley J. D. ^Ransdell/M. E. Davison F. G. Reitz R. H. Slaughter R. J. Swofford
RPF:ikg
LAM 016400
DPMC-13145
C i-Z
Shell Oil CompEny Shell Chemical Company
E Inieroflice l/emorandum
MARCH 18, 19 80
FROM:
SENIOR INDUSTRIAL HYGIENIST
TO:
SUPERINTENDENT SAFETY AND INDUSTRIAL HYGIENE
SUBJECT: SANDBLAST MATERIALS
Over the past few years, the Maintenance organizations have been able to phase out the use of sand for abrasive blasting. Since inhalation of free-silica from sandblasting can produce chronic, progressive lung damage, elimination of sandblasting was desirable. Industrial Hygiene surveys had shown that although the abrasive blaster could be protected with an air-supplied hood, concentra tions of free silica could exceed OSHA limits as far as 50-100 feet downwind of the work. It was because of the potential health effect that a medical examination program was started in 1978 for Shell sandblasters. That program will continue.
Several substitute materials (free of silica and less toxic) have been successfully used by Shell and several of the maintenance contractors.R The most generally used substitute abrasive is Apache-Blast . This material is primarily oxides of iron, silicon, aluminum and calcium and contains less than 1% free silica. As a result of the substitution program, it is now practical and desirable to ^limit sandblasting according to the following guidelines.
. substitute abrasives (such as Apache-Blast or others
approved by Maintenance and Saf: :y and Industrial Hygiene) for sand shall' be used:
(1) at the Maintenance North yard and at the Sline yard (the rabbit patch)
(2) in all operating areas (including tank farms) to avoid general exposure to other personnel
LAM 016401
Use of substitute abrasives is optional in areas that are remote from operating areas (e.g. greenbelt areas).
At times, the supply of substitute material has been inadequate. Sand may be used in place of the substitute if the work cannot be delayed until substitute material becomes available. Industrial Hygiene should be notified of such situations.
Whenever sand is used for abrasive blasting, the following require
ments are in effect:
\
(1) All sand blasters must wear NIOSH approved air-
supplied hoods.
DPMC-13146
(
SUPERINTENDENT SAFETY AND INDUSTRIAL HYGIENE
2
(2) Warning signs must be placed around the perimeter of the work. The perimeter should extend far enough out to prevent exposure to unauthorized personnel.
(3) Personnel in the perimeter shall wear respiratory protection at all times while sandblasting. A NIOSHapproved dust mask or air-supplied hood must be used by these not directly doing the blasting.
(4) Only authorized personnel with respirators should enter the perimeter.
J. D. Ransdell JDR/gri
cc:
ECB Satellite/ JDR Chron JDR Desk File
l
s LAW 016402
DPMC-13147
'.-J.- Dr-C [1-7!|
I
SHELL OIL COMPANY
SHELL CHEMICAL COMPANY
DEER PARK MANUFACTURING COMPLEX
/--
D. O. CHRISMER J. G. MASSEY
DATE JULY 13, 1978 FRM yj^iiGER SAFETY. & INDUSTRIAL HYGIENE
SUBJECT SILICA
Silicosis is a chronic, progressive and disabling disease for which the only treatment is prevention. Appropriate prevention programs are necessary for our abrasive blasting operations which utilize sand or other materials containing free silica. While certain programs are already in effect, a more comprehensive program is herein proposed. The basic points of the proposed program are summarized below:
1. Expanded industrial hygiene monitoring program. (S&IH)
Monitor sandblasting operation quarterly in the Refinery sandblasting yard, with random periodic monitoring of field sandblasting operations involving Shell personnel.
2. Medical Examination Program (Maintenance North and South, Medical Dept.)
Instigate a iriedical examination program for all Shell employees involved in sandblasting work on a predictably routine basis (per attached recommendations from Corporate Medical). Maintenance North and South shall provide and maintain an evergreen list of these personnel, and Medical will implement the program based on these lists.
3. Respiratory Protection Improvement (Maintenance North)
Complete the audit and improvements (currently underway) of sandblasting air supply systems, for both sandblasting yard and field use. Communicate OSHA compliance status to appropriate personnel engaged in sandblasting operations.
Instigate an effective and ongoing enforcement program regarding the use of the NIOSH-approved breathing equipment.
4. Substitution (Maintenance North and South - proposed joint project).
LAM 016403
Conduct a review of available non-silica or lov.'-silica substitutes now available, and develop a program to reduce or eliminate use of high silica abrasives. This substitution program is not currently mandated, but affirmative action in this regard where practicable seems prudent and in keeping with the recommendations of the Corporate Medical Director.
5. Update "Silica" Safety Bulletin (S&IH)
The attached silica safety bulletin will be updated/republisbed, and will be the, means to communicate the medical examination program to DF.MC employees.
DPMC-13148
D. O. Chrismer J. G. Massey
2
6. Contractors (S&IH)
The Safety Representative contractors will utilize the updated DPMC silica safety bulletin to advise contractors of Shell's program ' regarding silica/sandblasting. Also, contractors will be reminded that their procedures and safeguards must comply with OSHA.
Comments on this proposed action plan are requested by July 21.
Attachments
R. J. Swofford H. J. Bettencourt R. W. Bray/G. C. , D. E. Miller J. D. Ransaell M. E. Davison 15. T. Anderson R. V. Mattern R. P. Frutiger F. G. Reitz R. L. Brunner - 0
JLR:rr
LAM 016404
DPMC-13149
July 24, 1984
f/D.
Tom Roberts
I don't want to beat a dead horse - but this comes from our neighbors. Any comments on the proposed guideline I left with you?
P. J. SNYDER
LAM 016405
DPMC-13150
MEMORANDUM
ROHM AND HAAS TEXAS INCORPORATED
To Project Engineers#
From N.F. Quinn,Jr.
Date Julv 16. 198^
COPIES TO
e'#i
E. Brink R.N. Boruk M.W. Carden R.W. Gri.esser
Subject Crystalline Silica -Based Sandblasting Sand
J.E John son
w
i. 9
File: G-28
The use of crystalline silica-based sand for sandblasting is now prohibited in the Houston Plant due to the potential health hazards associated with dust from this material. Only non-silica sand such as Apache-Blast can be used.
Section D (Safety Conditions) of the job specification form and all applicable engineering standards have been revised to cover the non silica sand requirement. This requirement should be emphasized in safety Indoctrinations for all projects which involve sandblasting.
All exceptions to the non-silica sand requirement must have the Safety Director's approval.
Tne higher cost of non-silica sand should be included in estimates for all projects which involve sandblasting (see attached quotations).
NFQ:vm At tach
ro*u 7404
LAM 016406
DPMC-13151
Plant ft vA*COUSt
p O BOA 9077 -Ol.StCN T CXA$ 77015
4369253
6'-'*
SHtCIALTY SAND COMPANY
June 5, 1934
CEACWait PLANT ft \\AP>OaSe
P 0 BOX 377
CCWCTVILLC TCaaS 77614
741*436
-Jasper Siris Ger.e Kelscr. Inc. ?. C. Box 2243 Texas City, Tz. 77590
Tea" Jasper,
The following quote will cover bias zinc ir. balk end sacks.
F.G.3. -Jobsite - Deer Park
24 ton minimum -------------- -- ----------322. , Of per ton
24 0 per 2 oad ---------------- -- 430 per 2 oad ----------------
"* *" Oj? a, 92 per bag 70 p>er bag
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1 1
1
1
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1
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1
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1 1
50
00 p>er hour (over 1 hoar)
*Price includes the use of customer' s air compressor for unloading. An additional charge of 3.50 p-er ton will be added when our truck-mounted compressor is used for unloading.
hese prices are current. Our terms of payment are net thirty (30) days. If you have any questions reguarding this quote you can reach me at 713-456-3553.
l/AJl/cs
SthCA S*hP
Yours truly,
/
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y.A. Deck ley President
LAM 016407
DPMC-13152
APACHE
Air Blast AOrasiveS
:ne 9S4
A;\t;"v A^r 3>'v-.' {
. o. box 214 3 Texas City, Texas
7 7 5 91
Osar Mr. Simms:
As per year request I an queuing the following on fur .-.7-ACHE BLAST material, F.C.B. job site, delivered in Houston:
Bulk:
17-50 Crude - 24 tons ir.ininur ,6-50 Grade - 2 4 tons rrm.nur
S 6! . 57 66. OC ton
ua ~s:
100 pound bags, 2 5 bags pc-r pallet, F.C.B. our facility m Houstor.. (Full truck lead 4 50 bags)
10-50
iEJO
$4.30
4.55
300 bags or more
4.40
4.65
125-299 bags
4.60
4.85
25-124 bags -
4.95
5.20
1-24 bags
et deposit SI 1.00/pallet, refundable if pallets
(Customers responsibility to return to our facility).
Plastic pallet covers (4 mil) $4.00 each
We thank you for your interest in our product. of further assistance please give us a call.
If v.c- can ke
Sincerely,
APACHE ABRASIVES, INC..' Ob - - c'i i... (
tfoN - 5///CA-
LAM 016408
Alicia G . Gor..: a 1 c z 1 1 : "OOc.
DPMC-13153
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P. J. SNYDER
0?64o8
DPMC-13154
SILICA SANDBLASTING
Industrial Hygienist: Dupont - Beaumont
Using walnut shells instead of silica. Engineering found the sand removed too much metal.
Mgr. Safety: Dupont - Orange
They contract out sandblasting; they do not restrict against the use of silica sand. Industrial Hygiene monitoring establishes area to be roped off.
Safety Supervisor: Dupont - Victoria They contract out sandblasting; do not restrict against the use of
silica sand. For breathing air quality reasons an airline respirator is worn under the sandblast hood.
Industrial Hygienist: Union Carbide - Texas City
Apache blast or other non-silica grit is used in field. The manufacturer of their turbines requires crystalline silica or alumina blasting which is performed inside a sandblast room. Silica was eliminated because air monitoring studies showed over exposures 50 ft. and 300 ft. downwind.
Industrial Hygienist: Dupont - LaPorte
Do not permit crystalline silica for sandblasting for health. Dupont maintenance services did use silica inadvertently recently but management at this location supports not using it.
Environmental: Dupont - Deer Park
They allow silica sand to be used by Dupont maintenance contractors.
PJS08/35 5-29-84
LAM 016410
DPMC-13155