Document 0LkyZnOYp49M1eNL99OoyyXbO

stect Asbestos Evaluation of AT&T, Piscataway, .A. J. Case: A&10':-'- Beil Laboratories date J une 27, 19 8 3 frorr P . C . Payrit- MH 73 r 0 IF--10 c, 30?A MEMORANDUM FOR RECORD Summary On June 2-3, 1983 an asbestos survey was conducted at AT&T, AAA Hoes Lane, Piscataway, New Jersey. Bulk and air filter samples were collected in Buildings 1, 2, 3 and A. Asbestos fibers were identified in all the bulk insulation samples. The airborne fiber concentrations were all below the Occupational Safety and Health Admin istration's (OSHA) permissible exposure limit (PEL) for asbestos of 2 fibers per cubic centimeter of air averaged over an 8-hour work period. Introduction Mr. John Downes of 195 Broadway Corporation rea.uested an evaluation of asbestos be made at the AT&T facility in Piscataway, N. J. Ms. Patricia Payne of Bell Laboratories performed the survey on June 2-3, 1983, accompanied by Mr. Larry Doyle and Mr. Bill Murphy, both of 195 Broadway Corporation. Methods A walk-through survey was first done to select sampling locations. MSA (Model G) personal sampling pumps with a MCE ( O.Sym, 37 mm) filters in line were calibrated before and after use. Representative area air filter samples were collected in Buildings 1 through A. bulk insulation samples were collected where possible in the same area of the air filter samples. All samples were analyzed by Clayton Environmental Consultants, Inc. of Edison, N. J. CONFIDENTIAL 003676 Analysis of the air filter samples for fibers greater than five microns in length with an aspect ratio of three tc one or more were done in accordance with National Institute for Occupational Safety & Health P&CAM 239- The bulk insulation samples were analyzed by polarized light microscopy to identify fibers with the morphological and optical characteristics of asbestos fibers. Results The area fiber concentrations for the locations monitored are reported in Table One. All of these sample concen trations are below OSHA's PEL for asbestos, as well as the medical surveillance requirement set at 0.1 fibers/cc for an 8-hour time-weighted average. All the bulk insulation samples contained asbestos fibers as reported in Table Two. The Treasury Computer Room (2D-100) did not have any sprayed-on insulation above the ceiling tiles. Therefore, no asbestos Insulation material could be found in this location. Discussion Based on the results of this asbestos survey, the ambient fiber levels measured are well below the OSHA's PEL for asbestos and do not present a potential health hazard. Should the asbestos insulation be disturbed, appropriate control procedures need to be taken in compliance with federal and state regulations. MH-78691-PCP-nib Patx^cia C. Payne Copy to J. E. Downs - 195 Broadway Corp. R. Gonzalez - 195 Broadway Corp. T. Inge - 195 Broadway Corp. ,7 . L. Crumrine, M. D. - AT&T Degen - AT&T R. W. Stone, D. AT&T W. J . Schreibeis r* M. Wilkenirg -ONFIDENTIAl Table One Asbestos Air Samples Collected Fror AT&T, 4 i4 Hoes Lane, Piscataway, N. J. June 2-3, 1983 Sample Descript ior. 1. Elam. 1D-5D10C _ Operations Computer 2. Bide. 4C - 2nd Floor "Other Place" 3. Bldr. 3 - 2nd Floor Cafeteria 4. Bldr. 1C - 157 Central Mailroom 5. Bldr. 2D - 100 Treasury Computer 6. Bldr;. 4D - 520 Ed. & Career Center 1. Bldr*. 3D - 106 Control Room 2. Bldr,. 3 - 1st Floor Engine Room Blan/ Duration (minutes) 365 300 167 29^ 299 252 172 173 Volume of Air (L) 566 5*)5 324 585 565 50.1 3 42 353 Fibers/cc <0.00fc <0.00^ <0.006 <0.003 0.004 <0.Q0t <0.006 <0.006 ND* * Below the lower limit of detection of 2,024 fibers per filter. COMFi: 003677 Table Two Asbestos Analysis of Bulk Insulation Samples Collected From AT&T, i} i: a Hoes Lane, Piscataway, N.J. June 2-3, 1983 Sample Description Bldg. ID - 5D100 Operations Computer Bldg, lie - 2nd Floor Hall Near Other Place Bldg. 4D - 520 Ed. & Career Center Bldg. 3 - 1st Floor Engine Room 31dg. 1C - 157 Mailroom Asbestos Fibers Detected Chrysotile Chrysotile Chrysotile Chrysotile Chrysotile Percent Total Asbestos in Sample 2-4% 1-2$ 1-2% 7-9% 4% CONFIDENTIAL 003678