Document 1aMOd2w485orE8Nqq9J8GzBE

46C.O-Safety-Asbestos Air Monitoring Results PLAINTIFF'S EXHIBIT Dallas, May /< , 1991 L ,, vu iiw/'ii revu-i... O0tc (k.d stamp denotes file copy.) DISTRICT MANAGER-ARCHITECTURE & BUILDING OPERATIONS - San Antonio: DISTRICT MANAGER-ARCHITECTURE & BUILDING OPERATIONS - Houston: DISTRICT MANAGER-ARCHITECTURE & BUILDING OPERATIONS - Dallas: Attached are asbestos air monitoring results through April, 1991. -- All buildings with asbestos surveys completed and having "friable" asbestos are presently being monitored semi-annually (see attached). Please forward a copy of these results to the appropriate building manager. I* you have any questions, feel free to call or contact Joey Grubbs, Manager-Safety, on 214 464-8652. .1 Judy McCallum ristrict K`anager-Human Resources Attachment Operations Staff DM-Human Resources 004785 Asiest: C**59. *icr:r. 'eiii Bldg LOC Address Mgr "e! Mo. Sched. COUP. X AsP 1. Ati'ene Orchard XF4075 356 Cypress AddiSon744263 14653 Oils rkiy 3. Aiiarillt To" XF2124 3120 Eddy 4, Arlington Coin 738143 303 110th 5. Arlington East T30G33 400 1. South 5. 3ig Spring XP473G 501 Funnels ( 5o,ia 735521 310 l. Tarrant 5. Oil las Connors 743072 1446 Connors 3. Dallas Mockingbird T44103 5331 E Mcckmgbird 10. Dallas 3 5611744205 505 5. Akard 11. Dallas Khiunall 743175 214 H. 5th *2. El Faso Mam XAC030 13. El Faso Plant XAGG8G 510 Te*as 11253 Pelllcino 14. ElFaso Southeast XA0040 5045 Srens 15. Ft. Worth Edison 734531 1116 Houston 15. Ft. north lest 135143 3501 3.1. Loop 320 1?. Grand Prairie 743020 1425 Siall 13. Hillsboro XF3405 215 E. Franklin 15. Hurst 730215 1240 Park Place 30. Lubbock XF5505 1405 item 21. McKinney 735552 307 K. Kentucky 2. Midland <F5511 410 M. Missouri 23. Odessa XP2400 801 M. Lincoln 25. Semnoie XF4345 307 5.1. 3rd 25. 7yler 733525 611 1. El* 25. Waco XF2317 325 Mashington 21. Wichita Fails 735510 352 5th st 23. icharasort 746005 200 E. T.ler 23. Dallas 4 Bell 741080 311 3. Akard 30. Grand Prairie 641 743013 2513 Sfterian 31. Dallas 7alor 745555 4211 Bryan 32. Dallas (ianoton 743014 2301 3. Hanoton 33. Dallas E*erscnT46G6: 3643 Hillcrest 34. Arlington '274J 730065 312 4. Apra* 35. Dallas Melrose '*4033 750 Mocningbiro 35. Dallas East 743125 1130 Seachvie, 37. Dallas K. u1st Oft 745D55 1500 srestcn Forest 33. E: Paso Hacienda 7345 Parrel Elascyk Carranco Sanoai1 Hunter Hunter Causey Foss Foss Hoge Garra Foss HaraOie Marable MaraPle McCloud Barron Thornshurg Hansen Fiy 31lions Goodian Causey Causey Causey Tenpenny Thoias Henry Dosier Soloion Thornshurg Hogue Thornshurg Hogue Hunter Carranco Dosier Cosier Haraole 515-675-3073 214-344-6041 506-373-0455 317-453-5461 617-453-5451 315-534-153: 214-544-6041 214-544-5041 214-464-7517 214-464-4373 214-544-5041 315-542-4574 515-542-4674 315-542-4674 117-333-6033 317-333-5643 214-544-6517 214-544-3150 317-338-5656 306-741-6250 214-457-2020 315-534-1635 515-634-1635 315-534-1835 214-531-3430 817-757-7511 817-766-7182 214-484-7517 214-464-3071 214-344*6517 214-464-731? 214-344-6517 214-464-751? 317-453-5451 214-544-6041 214-464-7517 214-454-731? 315-542-4674 06/51-12/31 02/31-03/51 03/51-05/31 04/31-10/51 04/31-10/51 05,31-12/3; 05/31-11/51 04/51-1C/31 04/51-10*51 02/51-03/31 ' 03/31-03/31 05/31-12/31 06/31-12/31 35/31-12/31 82/31-08/31 02/51-08/31 04/51-10/31 05/51-11/51 04/31-10/31 06/51-12-31 02/51-08/31 32/51-03/51 32/31/08/31 36/51-12/31 02/51-03/51 05/31-11/31' 05/31-11/51 02/51-03/31 02/51-03/51 02/51-03/51 02/51-03/31 02/31-03/51 02/31-05/51 32/31-08/51 02/31-08/51 32/31-33/31 03/31-05/31 06 - 51-12/31 02;05/51 02/14/31 04/22/51 04/24/31 02/23/51 03/05/51 03/04/51 uu'Auft /*ft\* 04/30/31 04/25/51 03/81/31 02/20/51 02/20/51 02/25/31 03/06/31 02/21/51 02/27/5! 02/15/51 02.-14/31 82.-.3t Dj;06. 3` 03/07/51 '.235 .005 . 005 ..005 .033 .005 .805 .322 <004 .006 .008 .005 .006 1.005 .005 .003 ,.005 i.305 :.005 , ll* . J3: ASteStOS 4ir asBO'Uig; South Te/dS Sldg Lot Address Hgr Tel Ho. Sched. Cone. x asp T. SA CdDitoI 105 Aud Oir b: $A 4*13 Braad.ay 415021 4115 Broadid) rl. SA Pershing 412030 110 Varner Sutmrez Jennings Enbry 512-226-4524 05,31-11/31 512-320-5712 05,31-11/31 512-320-5332 05/31-11/51 A. ACS Sm.ood 4F2530 305 Colorado Benavides 512-570-2315 05/31-11/31 5. Alio Hickory Ar2535 201 Cunher'ano Benevadies 512-370-2315 05/51-11/31 5. AOS Hoiestedd AP3510 ( . 00 Tulip 412080 3`T H. Loos ill liaison 312-870-2433 05/31-11/3! 406 K. Caranchua Hon roe 512-881-7330 03/51-05/51 5. Seguin XI3055 4ua o. mer Carlian 512-370-2300 05/31-11/3! 3. Broinstille 412045 736 E. Haddington Lopez 512-421-7134 04/31-10/31 15. Victoria 414205 205 rt. Bridge House 312-575-3427 03/51-03/3! n. Sen Benito 412056 251 Reagan Lope: 512-421-7134 03/31-03/31 12. Hoy Ham 445i02 3100 Ham Hernandez 713-521-7403 33/31-35/31 13. Harlingen 412051 401 E. Van Suren Lopez 512-421-7134 04/31-10/31 U. Houston CdDitoI WK57C+ 1121 Capitol Brandenburg 713-520-0633 05/51-11/31 15. Houston O'd) 442313 1200 Olay Brandenburg 713-520-063! 05/31-11/51 16. HOuStOfi JaCkSOn 44606: 1310 Richiond Brandenburg 713-520-0638 05/51-11/31 IT. Houston Kiss ion 443110 <a*i uOOnn Aragon 713-320-4374 04/51-10/31 13. Houston Kational'436052 2310 Vest Lane Sohr 713-521-0252 04/51-10/3! 15. Houston effort 473060 710 Serry Vi Ison 713-353-4813 05/31-11/51 25. Houston r1uB Creek 444001 2522 rlui Creek Aragon 713-320-4974 04/31-10/5! 21. Houston ialnut 447130 3745 Harnsfiurg Brandenburg 713-520-0833 05/51-11/31 22. Klein Adiin Bldg. 4L7054 7533 Spring Cypress koiaginezak 713-443-3113 04/31-10/51 23.- Orange 4Z7270 704 4. Eli Latino 403-335-6105 04/31-10/51 24. Houston 4esidrdn 436431 3303 Veslayan Gohr 713-521-0252 04/51-10/31 25. 0ai*eston 445155 322 25th St. Quiroga 405-763-7750 04/51-10/31 25. Houston Hedical 432184 7330 Fannin Hofstetter 713-750-7626 04/31-10/51 27. Houston Prescott 437015 8303 Brae Acres Wilson 713-363-4813 03/31-03/31 23. Beduiiorit 423125 220 Ham Latino 403-533-6106 03/31-03/31 23. Houston Apollo 4430*2 623 El Dorado Faspua 713-336-3145 03/31-03/31 30. Beet 11'e 433034 300 Corpus Christ! House ='2-576-3427 03/31-33,31 31. Houston Sunset 435012 2533 Fonoren Wilson 713-663-4313 03/31-03/31 32. 3ELLVILLE 433034 `04 4, LtiBN Holly 713-521-6132 05/31-11-51 33. Liberty 520 Fannin St. Hiuerson 403-231-3436 05/31-11*31 34. Tdr'or SCO Tatbut Brignan 12-341-0:33 05/31-11/31 35. Cc'udOuS 1213 Austin Holley 713-521-6132 05/31-11/31 35. Houston ffeoub < ic 3301 Jutland Aragon 713-520-437* 54,31-:0/31 37. Haller 1313 Siith Holley 713-62*-6182 05/31-11/31 33. Brenhdi A 4 Eagle Lake 206 H. Saylor 302 4. Ham Holley Holley 713-521-6152 :s/si-ii/s; 713-521-6132 05/31-11/31 40. 3A 4et*ore 454 office 17213 San Pedro 34/03/51 04/25/31 04/25/31 04/25/51 04/25/3! 02/01/31 02/25/51 33/01/3! 04/16/31 04/02/31 04/08/31 04/13/9! 02/21/31 02/26/31 34/02/31 02/27/31 04/03/31 32/25:31 '.003 '..003 -.002 *'.005 .005 :.004 .004 7.004 ,004 .004 .004 .003 <.004 i.004 :.304 .005 :.3C3 ..004 004787 SwL SOUTHWESTERN LABORATORY INC Construction materials testing, analytical chemistry and geotechnical engineering P.0. Box 224227 2575 Lone Star Drive Dallas, Texas 75222 214/631-2700 May 1, 1991_____________File No. Report of: Reported to: Air Monitoring Southwestern Bell Attn: Joey Grubbs One Bell Plaza, Room 910 Dallas, Texas 75202 Date received: Identification: 4/30/91 1423 Small Street, Grand Prairie, Texas On April 30, 1991 a representative from Southwestern Laboratories Inc., (SwL) was at the Southwestern Bell Facility located at 1423 Small St. in Grand Prairie, Texas to provide prevalent air monitoring during normal work activities. The results of the air samples collected are as follows: Sample No. 043091 SWB 01 Location Field Blank Volume (L) Fibers per GC <0.0/100 fids. 043091 SWB 02 Field Blank <1.0/100 fids. 043091 SWB 03 Chief Switchman's Office 1200 <0.004 043091 SWB 04 043091 SWB 05 1st Floor, Switchroom 2nd Floor Switchroom, West Side 1200 1240 <0.004 <0.004 043091 SWB 06 Basement, Boiler Room 1200 <0.004 043091 SWB 07 2nd Floor Switchroom. East Side 1200 <0.004 004788 Lab. No. D9104282 .l { Samples are discarded 30 days after reports are mailed unless priorarrangements are made in writing. A storage fee will apply on samples held over 30 days. Our letters and reports are for the exclusive use of the client to whom they are addressed. The use of our name must receive our prior written approval Our letters and reports apply to the sample tested and/or inspected, and are not necessarily indicative of the qualities of apparently identical or similar products. SOUTHWESTERN LABORATORIES, INC. Report of: Air Monitoring Reported to: Page ^ Qf Southwestern Bell 2 1423 Small St., Grand Prairie, Texas Sample No. 043091 SWB 08 043091 SWB 09 043091 SWB 10 Location Basement, Breakroom 1st Floor Switchroom, East Side Basement, South End Volume (L) 1270 1230 1200 Fibers i <0.004 <0.004 <0.004 Method: Analyst: NIOSH 7400 DP Distribution of report: Respectfully submitted, 1C: Southwestern Bell SOUTHWESTERN LABORATORIES, INC. Per: /fa# Bob Garrett, Manager Environmental and Analytical Service Lab. No. D9104282 Samples are discarded 30 diys after reports are milled unless prftSr arrangements ire made in writing. A storage fee will apply on samples held over 30 days. Our letters and reports are for the exclusive use of the client to whom they are addressed. The use of our name must receive our prior writien approval. Our letters and reports apply to the sample tested and/or inspected, and are not necessarily indicative of the qualities of apparently identical or similar products. Xl 004789 SwL SOUTHWESTERN LABORATORIES Materials, environmental and geotechnical engineering, nondestructive, metallurgical and analytical services P.0. Box 224227 2575 ton* Star Drive Dallas, Texas 75222 214/631-2700 Date: Report of: Reported to: April 30, 1991 Air Monitoring Southwestern Bell Telephone Attention: Mr. Joey Grubbs One Bell Plaza, Room 910 Dallas, Texas 75202 Date received: 4/25/91 Identification: 1240 Park Place, Hurst, TX On April 25, 1990 a representative from Southwestern Laboratories Inc., (SwL) was at the Southwestern Bell facility located at 1240 Park Place in Hurst, Texas to provide prevalent air monitoring during normal work activities. The results of the air samples collected are as follows: Sample No. SUB-01 042591 Location Field blank Sotefi--(L). Fibers per CC . 2.0/100 fids. SUB-02 042591 SWB-03 042591 SUB-04 042591 Field Blank Breakroom Mid Cities Maintenance Center 1200 1200 0.0/100 fids. 0.006 <0.004 SUB-05 042591 Directory Assistance Operator area 1200 <0.004 SUB-06 042591 SUB-07 042591 Waiting Room NDS Conference Room 1200 1200 <0.004 <0.004 Method: NIOSH 7400 Analyst: DP Respectfully submitted, SOUTHWESTERN LABORATORIES, INC. Lab No. D-9104245 Bob Garrett, Manager Environmental and Analytical Services 004790 S/L SOUTHWESTERN LABORATORIES Materials, environmental and geotechnical engineering, nondestructive, metallurgical and analytical services P.0. Box 224227 257S Lon* Star Oriv* Dallas, T*xas 75222 214/631-2700 Date: Report of: Reported to: March 20, .1991 Air Monitoring Southwestern Bell Telephone Attention: Mr. Joey Grubbs One Bell Plaza, Room 910 Dallas, Texas 75202 Date received: 2/22/91 Identification : 3901 S. W. Loop 820, Fort Worth, Texas Samole No. SWB-01 022291 Location Field blank folMt (L) SWB-02 022291 Field blank SWB-03 022291 Basement, breakroom 1150 SWB-04 022291 Basement, mechanical room 1200 SWB-05 022291 Basement, boiler room 1200 SWB-06 022291 Basement, air handler room 1083 SWB-07 022291 1st floor, billing office 1370 SWB-08 022291 2nd floor, air handler room 1026 SWB-09 022291 1st floor, breakroom 1150 Fibers per GG 2.0/100 fids. 1.0/100 fids. 0.007 0.008 <0.004 0.005 0.009 0.016 0.008 Lab No. D-9102182 004791 SOUTHWESTERN LABORATORIES, INC Report of: Reported to: 2 Page.____ of Air Monitoring Southwestern Bell Telephone 2 Sample No. Location Volume CD SWB-10 022291 2nd floor, new order business office 1100 SWB-11 022291 Air Handling Room 1000 SWB-12 022691 Second floor, air handler room 1026 SUB-13 022691 Second floor, new orders business office 1000 Fibers, per GC 0.022 <0.005 * * These two samples were analyzed by Transmission Electron Microscopy. These two samples were recollected and analyzed due to the previous results obtained on February 22, 1991. No asbestos structures were observed on these samples. Method: NIOSH 7400 Analyst: DP Respectfully submitted, SOUTHWESTERN LABORATORIES, INC. /%& Bob Garrett, Manager Lab. No. D-9102182 _ Mkz Environmental and Analytical Services Simples are discarded 30 days after reports are mailed unless prior arrangements are made in writing, A storage fee will apply on samples held over 30 days Our letters and reports are for the exclusive use of the client to whom they are addressed. The use of our name must receive our prior written apprv*i- Our letters and reports apply to the sample tested and/or inspected, and are not necessarily indicative of the qualities of apparently identical or similar prooucts. 114 004792 S<L SOUTHWESTERN LABORATORIES Materials, environmental and geotechnical engineering, nondestructive, metallurgical and analytical services p.O. Box 224227 2573 Lon Star Driv* Dallas, Texas 75222 214/631-2700 Date: Report of: Reported to: February 27, 1991 Air Monitoring Southwestern Bell Telephone Attention: Mr. Joey Grubbs One Bell Plaza, Room 910 Dallas, Texas 75202 Date received: 2/21/91 Identification:: 2513 Sherman, Grand Prairie, Texas Sample No. Location Volume (LI Fibers per CC SWB-01 022191 SWB-02 022191 SWB-03 022191 Field blank Field blank Basement, mechanical room 1050 2.0/100 fids. 3.0/100 fids. <0.005 SWB-04 022191 Basement, Lounge area 1050 0.008 SWB-05 022191 1st floor, Switch room 1150 <0.004 SWB-06 022191 1st floor. Room 103 1200 <0.004 SWB-07 022191 1st floor, Air handler room 1200 <0.004 SWB-08 022191 2nd floor, Business office 1000 <0.005 SWB-09 022191 2nd floor, Lounge area 1000 <0.005 Method: NIOSH 7400 Analyst: DP Respectfully submitted, SOUTHWESTERN LABORATORIES, INC. Lab No. D-9102175 Bob Garrett, Manager kz Environmental and Analytical Services 004793 SOUTHWESTERN LABORATORIES PREVALENT AIR MONITORING FOR 1116 HOUSTON STREET FORT FORTH, TEXAS FOR SOUTHWESTERN BELL TELEPHONE ONE BELL PLAZA DALLAS, TEXAS 75202 Prepared by Southwestern Laboratories, Inc. 2575 Lone Star Drive Dallas,Texas 75212 ISoI 0c6 Tic:ON 131 IH'l' 1P1S ;QI C.S :?I It ` 004794  OUTHWBST6RN LASONATOniSH TABLE OF CONTENTS SECTION 1: SECTION 2: REPORT PREVALENT AIR SAMPLE RESULTS ZOd 1 TbST 036 FT3:QN "131 004795 Ihq. ms :.2I ,,:?! HH1 To.-lC'-dTl; SECTION 1: REPORT ilia T68T 0?b ric:ON 1H1 "M `ins 004796 :ai 6 ='?T HH1 Ib.-wO-d^U outhwebtebn laboratorih PREVALENT AIR MONITORING for Southwestern Bell Telephone ' One Bell Plaza, Room 910 Bellas, Texes INTRODUCTION Prevalent level air monitoring for Southwestern Bell Telephone is designed to evaluate the existing air quelicy in the area sampled in the building located et 601 N. Lincoln, Odessa, Texas. Air monitoring was conducted to establish prevalent fiber levels in the building. The procedure used to evaluate the air samples collected is an established procedure developed by NIOSH. PROCEDURES Prevalent level air monitoring was performed in accordance with procedures contained in the National Institute for Occupational Safety and Health's (NIOSH) "Manual of Analytical Methods, Third Edition, Method No. 7400", and recommendations contained in "Guidance for Controlling Asbestos-Containing Materials in Buildings", EPA 560/585-024, June, 1985. The analyses were performed by Phase Contrast Microscopy (PCM). Prevalent Level air samples were obtained by means of high flow sample pumps equipped with a critical orifice to control air flow rate. Samples were collected on open faced cassettes containing 25 millimeter (mm) diameter cellulose ester membrane filters equipped with extension cowls. The high flow rate samplers (10 liters per minute) were utilized to enable a large volume of air to be sampled within the designated sample period, thus yielding a lower reliable quantitation limit. The pump/filter arrangement enabled SwL to achieve a Reliable Quantitation Limit of 0.005 fibers per cubic centimeter of air sampled. "Aggressive Sampling" (as contained in the aforementioned E?A Guidance document) was not utilized during this test program, however, normal air flow from air conditioning units was not restricted. The sampling protocol followed was designed to test at least 502 of the building (ie: one-half of the total number of floors). In addition, air samples were collected in areas where previous abatement had occurred or potentially damaged ACM was located. &Jd ilbft T68I 0S6 :QN 131 1W. IMS 004797 :<1I S3:ST flHl 18. ouTHWESTeniu uABonATontea At the conclusion of the sampling periods, each filter was sealed and carefully labeled. . The air samples obtained and the blank filters were submitted to SwL's accredited laboratory in Dallas, Texas, for analysis utilizing Phase Contrast Microscopy (PCM) at 400 X magnification by an analyst who has completed the NIOSH (582) training course for evaluation of airborne asbestos dust. SwL participates in the Proficiency Analytical Testing (PAT) program for airborne asbestos by PCM, sponsored by NIOSH. The PCM technique (utilizing NIOSH methods) does not distinguish asbestos fibers from other fibrous particulate (ie. fiberglass, cellulose). RESULTS Prevalent level air monitoring results are shown on the attached reports. Initial analysis of sample SWB-14 (15th floor air handler room) yielded results greater than 0,01 fibers/cubic centimeter. This area and the office area which is serviced by this air handler, were resampled on 3-4-91. All of the samples collected on 3-4-91 yielded results below 0.01 fibers/cubic centimeter. The reason for the initial, aberrantly high value (SWB-14) was found to be the result of a technician sampling error, The sampling cassette fell to the floor in the 15th floor air handler room during sample collection. Asbestos debris was noted (and confirmed by PLM analysis) in the specific area where the sample cassette had fallen. This debris originated from thermal insulation on a chill water pipe. The fiber count for this sample was therefore biased due to fiber contamination from the debris on the floor. This sample was not representative of prevalent level fiber concentrations on the 15th floor office area or air handler room. LIMITATIONS The prevalent level asbestos results are representative of their respective sampling period only, and there Is no guarantee that the levels will not change with time and building use. IbST 0cb tT?:0N 131 IH'l H'lS :QI 004798 TlHl If. SECTION 2: PREVALENT AIR SAMPLE RESULTS T66T 0c t T c : ON 131 004799 nya'ii'is . "f T eii'rt flHi T3 .--C-rrl. Su>L SOUTHWESTERN LABORATORIES Matatiah, twiroamntal and gteteckmcal aagiimrm& madextructm, mtaUargieai and analytical nrriett P.0. Bex 214227 2575 lorw Star Drtva alias, Texas 75222 a 214/511-2700 Date: Report of: Reported to: March 1, 1391 Air Monitoring Southwestern Bell Telephone Attention: Mr. Joey Grubbs One Bell Plaza, Room 910 Dallas. Texas 75202 Date received: 2/27/91 Identification: 1116 Houston St., Fort Worth, Texas Sample No, Location Volume (L) SWB-01 022691 Field blank SWB-02 022691 Field blank SWB-03 02269 L Basement, Boiler Room 1000 SUB-04 022691 Basement, Mechanical Room 1010 SWB-05 02269L 1st floor, Switch Room, Air Handler Room 940 S V? - 0 6 022691 1st floor, Switch room column #L9. i 970 SUB-07 022691 2nd floor, Mr handler Room 219 1070 SUB-08 022691 5th floor, Room 538, Special Services 1020 SWB-09 022691 7th floor, 737 Room, Storage Room 1180 SUB-10 022691 9th floor, Emergency Generator Room 1240 SUB-11 022691 ilth floor, Air handler room 1230 HMh.pt cc 0.0/100 fids. 1.0/100 fids. - <0.005 <0.005 <0.006 <0.005 <0.005 <0.005 0.005 <0.004 <0.004 Lab No. D-9102210 SOd 1681 0S6 rI3:0N 131 nya nns 004800 aI OQ'-Lt fiHl IS .-wO-dfl I SOUTHWESTERN LSBCIATORiE88 8NC. Report of: Reported to: Pape ^ of Air Monitoring Southwestern Bell Telephone 2 SaiRle.3, SUB-12 022691 SUB-13 022691 SUB-14 022691 SUB-15 022691 SUB-16 022691 SUB-17 022691 foltane (LI 11th floor, #1140, Northwest corner 1110 13th floor, Operators Room 1190 15th floor, Air handler room 1110 14th floor, Air handler north side 12th floor, North-south hallway near Room 1225 8th floor, Office 800 1000 1060 1000 rifr.tTt-Fr S <0.005 0.006 0.040 <0.005 0.005 0.009 Method: NIOSH 7400 Analyse: JG Respectfully submitted, SOUTHWESTERN LABORATORIES, INC. 004801 Jlw\ Bob Garrett, Manager Lab. .No. D-9102210 \}kz Environmental and Analytical Services Samples are discarded 30 days after reports are mailtd unleu prior arrangements are made in writing. A storage fa* will apply on samples held over 30 da Our letters and reports are for the exclusive use of the client to whom they are addressed- The use of our name must receive our prior written approval. ( letters and reports apply to the sample tested and/or inspected, and are not necessarily indicative of the qualities of apparently identical " il4 60d 1681 036 RI3J0N 131 nya-'ins :>3I 00:It PHI 16 .-10-3*711 &tu SOUTHWESTERN LABORATORIES Materials, eitrironmental and gtettcknkel tngltmrmg, Madmntctite, mstaMssrgieal and analytical strricst 7.0. Box 224127 2575 Lon* star Orfva Datlaa, Taxaa 75222 214/431*2700 Date: Report o: Reported to: March 5, 1991 Air Monitoring Southwestern Bell Telephone Attention: Mr. Joey Grubbs One Bell Plaza, Room 910 Dallas, Texas 75202 Date received: 3/4/91 Identification: 1116 Houston St., Fort Worth, TX Sample Ho. Location Volume ID SWB-01 030291 Field blank SWB-02 030291 Field blank SUB-03 030291 Room 1502 1545 SUB-05 030291 SUB-07 030291 Room 1509 Room 1508 1017 1607 SUB-09 030291 Room 1510 1587 SUB-11 030291 Room 1506 1779 SUB-13 030291 Conference Room, Room 1514 1647 SUB-15 030291 Hallway near Room 1508 1515 yifrra pey CC 1.0/100 fids. 0.0/100 fids. <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 Lab No. D-9102210 Old S4SB T63T 036 VISION 13J lyil/ins 004802 TO:,:! OHl T 6..-=" SOUTHWESTERN! LABORATORIES INC, Report of: Air Monitoring Reported to: Southw*tern Bell Telephone _L of 2 ^ MsMiisn MfflliU Zttin per cc SWB-17 030291 SWB-X9 030291 Supply Room near Room 1509 15th floor, Air Handler Room 1312 1638 <0.004 0.005 Method: NIOSH 7400 Analyst; DP Respectfully submitted, SOUTHWESTERN LABORATORIES, INC. 004803 Bob Garrett, Manager Environmental and Analytical Services Sample* ar* discarded 30 day* after report? are mailed unleaj prior arrangements are made in writing A storage fee will apply on samples held wet 30 days. Our letters ind reporti are for the exciisive uie of the client to whom they are addressed. The ute of our name muit receive our pnor written approval Our tetters end reports epply to the sample tttted and/or inspected, and are not necessarily indicative of the qualities of apparently identical or similir producti. 114 TTd S4S8 T6ST 036 813:014 131 iua nns '31 I0:j.T nHl T