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INDUSTRIAL HYGIENE MONITORING FOR ASBESTOS TO: D. L. Johnson, 511-5518 Computer Ref. W-1043 CC: C. W. Carman, 725-105 G. F. Hurley, 701-334 C. R. Johnson, 511-2009 L. R. Noble, 511-2149 D. R. Paugh, 511-2009 P. A. Perry, 511-5583 H. L. Robinson, 701-401 E. C. Shipley, 511-2009 PERSON MONITORED T. L. Jividen Location#1 Powerhouse - Institute Date 4/28/80 EXPOSURE RESULTS Sample 1 2 3 4 5 6 Cone, fibers ^ . 52 5 pm/cm- ! Sampling Time 57 minutes .62 111 minutes Comments A.M. - Stripping insulation A.M. - Stripping insulation Time-Weighted Average Concentration (TWA) Not monitored long enough to Ceiling Concentration calculate TWA ALLOWABLE' EXPOSURE TWA 2 f ibers > 5 pm/cm3 Ceiling _________________________ Cosha) OSHA UCC UCC Other Other COMMENTS Stripping insulation from several steam lines on #1 boiler on the first level of #1 Powerhouse at Institute. Sometime during the afternoon, the filter cassette worn by Mr. Jividen was lost so a TWA was not calcu lated. During the stripping he wore a disposable dust respirator and dis posable coveralls. Even insulation that does not contain asbestos should be watered to help contrtrooll--tthhe dust. WORK BY APPROVED BY 7 UCC 024717 INDUSTRIAL HYGIENE MONITORING FOR ASBESTOS TO: D. L. Johnson, 511-5518 Computer Ref. W-1043 CC: C. W. Carman, 725-105 G. F. Hurley, 701-334 C. R. Johnson, 511-2009 L. R. Noble, 511-2149 P. A. Perry, 511-5583 D. R. Paugh, 511-2009 H. L. Robinson, 701-401 E. C. Shipley, 511-2009 PERSON MONITORED F. E. Cobb Location #1 Powerhouse - InstituteDate ______ 4/28/80 EXPOSURE RESULTS Sample 1 2 3 4 5 6 Cone. fibers i .15 5 urn/cnr .37 .06 .52 Sampling Time 63 minutes 108 minutes 30 minutes 45 minutes Comments A.M. - Stripping insulation A.M. - Stripping insulation P.M. - Stripping insulation P.M. - Stripping insulation Time-Weighted Average Concentration (TWA) .14 fibers > 5 pm/cm3 Ceiling Concentration ALLOWABLE- EXPOSURE TWA 2 fibers > 5 pm/cm3 (OSHA^) Ceiling _________________________ OSHA UCC UCC Other Other COMMENTS Stripping insulation from several steam lines on #1 boiler on the level of #1 powerhouse at Institute. Mr. Cobb wore a disposable dust respirator and disposable coveralls during the stripping. first Even though part of the insulation being stripped did not contain asbes tos, the insulation should be well watered to help control the dust. WORK BY APPROVED BY UCC 024718 INDUSTRIAL HYGIENE MONITORING FOR ASBESTOS D. L. Johnson, 511-5518 Computer Ref.w-1043 C. w. Carman, 725-105 G. F., Hurley, 701-334 C. R. Johnson, 511-2009 L. R. Noble, 511-2149 P. A. Perry, 511-5583 D. R. Paugh, 511-2009 H. L. Robinson, 701-401 E. C. Shipley, 511-2009 PERSON MONITORED ___________________T. G. Grant______________________________ Location #1 Powerhouse - Institute Date 4/28/80 EXPOSURE RESULTS Sample 1 2 3 4 5 6 Cone. fibers ^ .43 5 um/cnr 1 Sampling Time 58 minutes .64 116 minutes .34 89 minutes Comments A.M. - Bagging insulation A.M. - Bagging insulation P.M. - Bagging insulation Time-Weighted Average Concentration (TWA) .27 fibers > 5 um/ciw3 Ceiling Concentration _____________ ALLOWABLE- EXPOSURE TWA 2 fibers > 5 pm/em3 Ceiling _________________________ (QSHA) OSHA UCC UCC Other Other COMMENTS Bagging insulation that had been stripped from several steam lines on #1 boiler on the first level of #1 Powerhouse at Institute. The stripped insulation was placed in plastic bags tagged and placed in a dumpster for proper disposal. Mr. Grant wore a disposable dust respirator and. disposable coveralls. UCC 024719