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Johns-Manville (\ | Intern1a.l Correspondence
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To:#/ L. I. Richards - Dehispn.r
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From: Copies: Subject:
W. A. Sells m
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s. B. Gillespie, H. T. Brode-Denison, file/chrono `j
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ASBESTOS STATIONS OVER 2.0F/CC YOUR LETTER OF FEBRUARY 6, 1976
I am sure you are aware of the deadline for the
reduction of 8-hour TWA exposures to asbestos fiber
below 2.0F/cc by July 1, 1976. Your subject letter
does not indicate a time schedule to meet this require
ment. Specifically when do you propose to complete
evaluation of modifications to the scrap feed chute?
Also, what is your schedule for completion of the design
of the bag opening station? When do you expect to
resample these two locations in order to confirm dust
levels?
Your prompt answers to the above questions will be appreciated. They are needed to confirm the Division's ability to meet these dust requirements oh schedule.
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W. A. Sells. DHQ L. I. Richards, Denison
February 6, 1976
S. B. Gillespie, DIIQ
H. T. Brode
AS3HST0S STATIONS OVER 2.0 F/cc CRITERIA FOR CORRECTION
Denison has two stations over 2 F/cc, the Scrap Grinder Operator
and the Willow Operator.
Scrap Grinder Operator
All of E. J. Mitchell's basic criteria have been met except providing mechanized scrap feeder to the grinder. Recent modifications to the scrap feed chute are being evaluated to determine if a mechanized feeder is needed.
Willow Operator
Two of E, J. Mitchell's criteria have not been met. The elimination of paper fibre bags Is beyond plant control.
The design for modification of the fibre feed is being prepared to make possible the use of one bag opening position. Modification will be complete approximately 2 months after commencement of work.
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U3i Johns-Manville
To: See Below
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From: W. A. Sells^
Internal Correspondence
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Date: January 27, 1976 r? i:l/$
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Copies: S. B. Gillespie, File/Chrono
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Subject:
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ASBESTOS STATIONS OVER 2.0 F/cc
/AAaJJLE. J. Mitchell's Letter of December 30, 1975
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You were all forwarded copies of the subject letter recently.
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I am sure you are well aware of the urgency of reducing the 8-hoyx_^\^>r
TWA exposures at these cited locations.
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If you have not already done so, will you please advise me of your current plans and schedules for the elimination of these problem areas. A copy of this information should be sent to Sam Gillespie here at DHQ. If the demands of these projects will disrupt your current Six Months Operating Plan Schedule, arrangements should be made with Sam for their modification.
Please have your current plans in my office by February 9, 1976.
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TO: L. I. Richards - Denison
G. E. DeLong - Green Cove Springs
W. A. Ford
- Long Beach
R. F. Henry
- Manville
W. E. Volwiler - Stockton
J. W. Christopher - Waukegan
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s,,hirri- ASBESTOS STATIONS OVER 2.0 F/cc CRITERIA FOR CORRECTION
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Following is a 3isting of Pipe Division and IPD asbestos
stations recorded as "over 2.0 F/cc" on the latest Indus-.
trial Hygiene Surveys. Survey dates are shown to the
right of the plant name.
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Denison - Pipe
Oct. 13-17, 1975
D-7WE
Willow Feed Operator
D-8WE
Scrap Grinder Operator
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Green Cove Springs - Pipe
Sept. 29 - Oct 3, 1975
D-1T
Willow Operator
D-6T
Crosswalk over slurry trough
Long Beach - Pipe
Aug. 18-28, 1975
D-14WE
General area - over #1 P.M. mixing trough
D-16F
General area - inside enclosure under baghouse (finishing)
D-2M
Skilsaw Operator -
D-1F
U.C.L. Operator
Manville - Pipe
Apr. 23 - July 23, 1975~,
D-12W
Willow Operator, #1 and #2 machine
Asbestos Stati-0s over 2.0 F/cc
Dec. 30, 1975 ^
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Page 2
Stockton _ Pipe
D-9WE
w4 Willow Operator
June 16 - July 3, 1975
Waukegan D15-WE D9-F D-15F D-25F D-41F D-22S
Pipe
flay 1-30, 1975
Willow Operator -
DeWalt Sav: (3824)
Operator, large coupling lathe
Mold. Sav; Booth Operator
Hawthorne Lathe - North side
Millwright
Billerica - IPD
W. B. Reitze report 9/22/75
Dl-P
Grinder Operator
D2-P
Mixer Operator
D5A-P
Press Utility Operator Racking and un-racking by hoist
D6A-F
Panel Saw Helper
D7-F
Silica Treating Operator
D15-F
Maintenance Worker
D17-F
Packing Operator
Tilton - IPD
W.B. Reitze report 9/23/75
D-lT
Beater Operator
D-8T
Millboard Machine Operator
D-9T
Millboard Take-off Operator
>t *> Asbestos StntiW-s over 2.0 l'/oe
Dee. 30, 1975
Page 3
Waukecran - IPD
W.__B. Reitze report 9/23/75
D6-MB
Millboard Saw Operator
D-1MP
Willow and Ross Mixer Operator
D-65
Unload Boxcar Fiber
D-4C
Operator of Adhesive Mixer
Under current 05-iIA regulations, July 1, 1976 is the deadline date for reducing 8-hr. TWA exposures to asbestos fibre below 2.0 F/cc. With but six (6) months to go, correction of those stations still above 2.0 F/cc should be given priority treat ment .
At your request, I am submitting the following basic criteria for correction of those Pipe Division stations now above 2.0 F/cc.
1. Willow Operators
Empty bag disposal inside discharge hood.
tb. Willow air used for hood ventilation.
c. One (1), only, bag opening position on conveyor-
type fibre feeders.
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-d. Eliminate all "up-drafts'-1 in working area.
*e. Immediate availability of vacuum clean-up ' equipment at each bag opening station.
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Pallet v;ashing station for cleaning empty pallets.
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g. Elimination of paper fibre bags.
h. Continuous audit of all fibre handling procedures, coupled with training and discipline as required.
2. Scrap Grinder Operators
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a. Eliminate "dump mining" operations where, and
if, in use.
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>-b. Select and use only large size pieces of scrap
at grinder. Do not contaminate with dust at
finishing end.
'C. Eliminate dust feeding operations at scrap
grinder where, and if, in use.
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Asbestos Statics over 2.0 r/cc Dec. 30, 19 75'4-
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id. Provide hood at scrap feeder with sufficient protection to eliminate adverse affect of cross-drafts. Provide additional ventilation air to insure dust capture velocities in work ing area. Eliminate all "up drafts" in working area.
e. Provide mechanised scrap feeder to grinder.
where not now installed.
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f. Continuous audit of all scrap handling procedures,
couplec with training and discipline as required.
3. Crosswalks over Slurry Troughs
a. Provide dust collection system at all leak points j.n fibre storage, handling, weighing, mixing and feeding system. This means every shaft seal, inspection door, clean-out, etc'.
b. Provide vacuum clean-up capability on an immediate availability basis.
c. Increase ventilation air at wet mix box..
d. Continuous audit of housekeeping and clean-up procedures, coupled with training and discipline
as required.
4-. Baghouse Dust Discharge Enclosures
a. Eliminate use of open top container when, and
if, in use.
b. Eliminate use of containers which must be . "re-positioned" to fill completely.
c. Provide "standard" connectors (like Waukegan) between rotary valve and container.
d. Provide "negative pressure" vent connection (like Weukegan) between dust collector and container.
e. Provide dust collection system at.all leak points (shaft seals, doors, transfer points, etc.).
f. Continuous audit of housekeeping and clean-up
. . procedures as well as material handling pro
cedures, coupled with training and discipline
as required.
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Asbestos StaL; -~ys over 2.0 r/cc Dec. 30, 1975`
Page 5
5. Skill Saw Operator
Eliminate i he operation.
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6. U.C.L. Opcrator
a. Provide all tool bars with airjet to operate only whe-n hood is closed.
b. Provide pallet washing station to insure only "clean" pallets are used for blanks.
c. Provide vacuum clean-up system for immediate availability at each lathe.
d. Provide down-draft, ventilated inspection table at each lathe.
e. Continuous audit of clean-up and materials handling procedures, coupled with training
' and discipline as required.
7. DeWalt Saw Operator
Continuous audit of dust collection system op
eration and use. Provide training and dis
cipline as required.
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8. Pipe Lathe Line Operators
a. Provide hoods, where not'now installed.
-b. Provide rubber wiper rings on each chuck.
c. Eliminate air blast cleaning after lathe.
- .-.d. Eliminate impact of pipe-against-pipe after lathe. Provide mechanical conveying.
e. Wash all pipe I.D.s.
f. Provide vacuum cleaning system at each lathe for immediate availability.
g. Continuous audit of clean-up and materials handlirg procedures, coupled with training and discipline as required.
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Asbestos Statics over 2.0 J/cc Dec. 30, 1975 ^
i'anr. (3
9 . Millwright 11laintenance ;'.rsonnel)
a. Provide portable vacuum cleaning equipment to be used prior to start of maintenance work.
b. Provide training in procedures to be followed (clean up job before starting work, leave job clean when finished, etc.).
c. Establish job pre-inspection procedures to be carried out by lead-man or foreman and followed by specific instructions regarding hazardous exposures - increase both quantity and quality of supervision.
d. Continuous audit of all work procedures, coupled with training and discipline as required.
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