Document 50wErzRNLvDj9KwN0VRVw7yxR
PLAINTIFF'S EXHIBIT
CTD019546
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FORM 117 8/80 *01-19*0015
Opttlei
CTD019547
CertainTeed
Date August 20, 1981
Subject
INDUSTRIAL HYGIENE SURVEY - AMBLER PLANT March 23-24, 1981 and May 5, 1981
To
F. Timpe From
L. Mellon, M. D.
Location and mail code
2125/2B Location and mail code 1125/4
OWt-MOB
cc: J. McGinley - 2125/2B H. Benhardt - Ambler, 258 D. Hall - 2125/2B
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We have issued the report for the industrial hygiene survey of the Ambler A/C Pipe Plant. Following are the summary and recommendations of this survey.
SUMMARY
Excessive noise exposure is the major health problem found during this survey. Noise measurements taken during this survey show that little noise reduction has been achieved since our survey of last year.
Asbestos monitoring revealed that personal exposures were all below the current OSHA standard of 2 fibers/cc. Area samples at the crusher were found to exceed the standard although the crusher operator's time weighted average exposure was 0.69 f/cc, revealing no apparent excessive exposure for this job position. Substantial improvements in fiber levels were found at the bag opener and in the Finishing/Fittings department.
Little to no action has been taken on eight of our thirteen recommendations of last year concerning asbestos monitoring and followup work, establishment of a respirator program, noise reduction and control, and hearing protection.
RECOMMENDATIONS
It is recommended that:
1. The on-going study should be made of the manufacturing area, expecially at the press section/roll up area to determine wind currents and other dust sources, be continued.
2. The use of used felt in all areas of the plant and shipping be discontinued.
3. The on-going study of the Crusher Area to determine dust sources at this area and to measure the effectiveness of changes be continued.
4. The problem with the accumulation of tailings at Lathe Line #3 and the Lehman Lathe be studied and corrected.
5. Hearing Conservation programs with annual audiometric examinations should be established for employees whose exposures exceed 85 dBA level for an 8-hour, i.e., a 50 % reading on audiodosimeter.
Continued...
CTD019548
Ambler Industrial Hygiene Survey August 20, 1981
Page 2.
6. Employees with exposures exceeding 90 dBA on an 8-hour Time Weighted Average, i.e., 100% reading on the audiodosimeter should be required to wear hearing protection.
Those job positions tested and found to exceed the 8-hour allowable dose (100%) during the Dec. 79/Jan. 80 survey and this survey are:
Manufacturing
Machine Tender Mandrel Handler Tray Loader Utility Truck Driver Crusher Operator
Finishing/Fittings
#3 Lathe Operator #3 Lathe Helper #3 Inspector #3 Tester Operator FD16 Boring Mill Operator FD9 Coupling Saw Operator
FD13 Universal Mill Operator FD28 Korit Drill Operator FD21 Wet Saw Operator Pencil Sharpener Operator FD7 Lehman Lathe Operator FD10 Rework Saw Operator
7. The following areas be posted as required hearing protection areas:
(a) Lathe Line #3 Operator Work Station (b) Lathe Line #3 Helper Work Station (c) Lathe Line #3 Tester Operator Work Station (d) Lathe Line #3 Inspector Work Station (e) FD16 Boring Mill Operator Work Station (f) Mandrel Return Change Conveyor Area
8. Previous recommendations (Dec. 79/Jan. 80 survey) be implemented and suggestions be considered for Manufacturing Finishing/Fittings noise reduction. Help from an outside consultant should be obtained if the expertise is not available within the plant or group.
9. A review of all plant positions should be made to determine possible employee noise exposures for all areas of the plant.
10. Until noise is reduced by engineering controls or administrative means, that hearing protection use be enforced.
11. When hearing protection is required, several types of hearing protection should be made available for the employees to choose from (i.e., disposable plugs, reusable earplugs - with/without neckcord and ear muffs).
12. That a quarterly status report on all of the above recommendations be made to Corporate Health and Safety.
CTD019549
CTD019550