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Home My WebLink About23079_Northern Telecom_O_Asbestos Survey_199810296713.002 Report Asbestos Survey: Northern Telecom/Nortel 4001 East Chapel Hill -Nelson Highway Research Triangle Park, North Carolina Northern Telecom/Nortel Research Triangle Park, North Carolina Issued: February 1998 Revision 1: August 1998 Revision 2: October 1998 Revision 3: October 1998 Q'BRICN S GERE ENGINEERS, INC. 1015 Aviation Parkway, Suite 700 Morrisville, North Carolina 27560 .. ,.. �: # a a� i_ . � "S a -7 � � ` 71 _ i � y - L + - r _ } • 3 '� t' r. t. r. - - Contents 1. Introduction .......................................... 1 2. Building description .................................... 3 2.1. Building composition ............................... 3 2.2. Buildin; construction materials ....................... 4 3. Asbestos -containing material survey ...................... 5 3.1, Suspect materials included in sampling ................. 5 3.2. Suspect materials not included in sampling .............. 6 3.3. Confirmed asbestos -containing materials ............... 6 3.4. Confirmed non -asbestos -containing materials ............ 8 4. Survey conclusions and recommendations ................. 15 4.1. Confirmed asbestos -containing materials .............. 15 4.2. Continued suspect asbestos -containing materials ........ 16 4.3. Additional notes .................................. 17 4.4. Inspection accreditation ............................ 17 5. Subsequent asbestos abatement activities ................. 19 5.1. July 13-24, 1998 abatement project ................... 19 5.2. September 4-6, 1998 abatement project ................ 19 5.3. October 14-15 and 21-22, 1998 abatement project ... _ _ .. 20 Revised: October 29, 1998 i O'Brien & Gere Engineers, Inc. i A. _16 713.002151rptrev3.wpd Asbestos survey Figures I Asbestos Diagram - Manufacturing Area First Floor 2 Asbestos Diagram - Manufacturing Area Second Floor 3 Asbestos Diagram - East Office Building First Floor 4 Asbestos Diagram - East Office Building Second Floor 5 Asbestos Diagram - West Office Building First Floor 6 Asbestos Diagram - West Office Building Second Floor 7 Asbestos Diagram - West Office Building Basement Tables 2-1. Building composition ................................. 3 2-2. Building construction materials ......................... 4 3-1. Confirmed asbestos -containing materials (January 5-6, 1998) .. 7 3-2. Confirmed non -asbestos containing materials (January 5-6,1998)................................... 8 4-1. Confirmed asbestos -containing materials (January 5-6, 1998).................................. 15 Attachments I Laboratory analytical results O'Brien & Gere Engineers, Inc. Revised: October 29, I998 i:\.A6713.002\5\rptrev3.wpd 1. Introduction O'Brien & Gere Engineers, Inc. (O'Brien & Gere) was retained by Northern Telecom/Nortel (Nortel) in December 1997 to perform an asbestos survey of the Nortel facility located at 4001 East Chapel Hill -Nelson Highway in Research Triangle Park (RTP), North Carolina_ It was O'Brien & Gere's understanding that the Nortel RTP facility was to be scheduled for a major renovation during 1998 and that this asbestos survey was necessary to classify potential asbestos -containing materials (ACM) prior to the renovation activities. As such, the asbestos survey was conducted in compliance with the Occupational Safety and Health Act (OSHA) standards contained in 29 CFR 1910.1200 and the Asbestos Hazardous Emergency Response Act (AHERA) requirements. For clarity, this report has been subdivided into the following sections: • Section 2 - Building description, which provides general information concerning the size, age, and construction materials for the building. • Section 3 - Asbestos -containing material survey, which discusses the suspect materials that were sampled, the suspect materials there were not sampled, and the material which were confirmed to be ACM or non - ACM based on the January 1998 analytical results. • Section 4 - Survey conclusions and recommendations, which provides a listing of the known ACM and the suspected ACM (which was not sampled based on the January 1998 asbestos survey) and which provides recommendations for addressing these materials prior to the renovation activities. • Section 5 -Subsequent asbestos abatement activities, which describes the asbestos abatement activities which have been conducted subsequent to the January 1998 asbestos survey. Revised: October 29, 1998 1 O'Brien & Gere Engineers, Inc. i:\..I6713.002\5\rptrev3.wpd Asbestos sury O'Brien & Gere Engineers, Inc. 2 Revised: October 29, 1998 i:\-.\6713.002\5\rptrev3.wpd 2. Building description 2.1. Building composition Revised: October 29, 1998 i:1..16713.00215 trev3.wpd O'Brien & Gere performed a preliminary site wallcthrough of the Nortel RTP facility and its buildings on December 2, 1997. Based on the preliminary survey, one large manufacturing/office building and three small guard houses were identified at the facility. The layouts for the large manufacturing/office building are provided in Figures I through 7. (The three small guard houses were included within the surveyed area, but are not depicted on the figures.) The large manufacturing/office building was identified to comprise a total of 776,000 ft' of enclosed space, of which: 4I4,000 ft' is designated for office uses; 337,000 ft- is designated for manufacturing purposes; and 15,000 ff- is designated for laboratory uses. The following table provides a description of the different sections of the large manufacturing/office building, which were all constructed during the 1980 to 1994 time period: Table 2-1. Building composition Building Identification of floorslusages Main Basement: Located under the southeastern comer of the Manufacturing manufacturing area. Douses a compressor Building room and a shop area. First Floor: Houses manufacturing and laboratories. Second Floor: Located along the outside walls of the building. Predominantly offices, with some equipment storage_ Bast Office First Floor: Houses offices, the cafeteria, and the atrium. Building Second Floor: Houses offices. O'Brien & Gere Engineers, Inc. Asbestos survey Table 2-1. Building composition Building Identification of floors/usages West Office Basement: Complete basement under entire West Office Building Building. Houses equipment rooms, the control center, the fitness center, and a compressor room. First Floor: Contains offices. Second Floor: Contains offices. Three Guard Houses First Floor: Contain offices. 2.2. Building construction materials The construction materials for the large manufacturing/office building and the three small guard houses include the following types of materials: Table 2-2. Building construction materials Building Component Construction Materials Foundation Exterior Walls Interior Walls Interior Floors Ceilings Roofing O'Brien & Gere Engineers, Inc. Concrete Concrete Drywall, Concrete Masonry Units, Wood Paneling, Sprayed -on Walls Concrete, Various Floor Tiles, Linoleum, Carpeting, Rock Glaze, Brick Drywall, Suspended Ceiling Tiles, Sprayed -on Ceiling, Sprayed -on Fire -Proofing, Built -Up Roofing 4 Revised: October 29, 1998 i:\.A6713.002\5\xptrev3.wpd 3. Asbestos -containing material survey After the preliminary site walkthrough on December 2, 1997, O'Brien & Gere followed -up at the Nortel RTP facility with an ACM survey on January 5 and 6, 1998. During the two-day survey, a total of 160 samples of potential ACM were collected and shipped off -site to Carolina Environmental, Inc. of Raleigh, North Carolina for analysis by polarized light microscopy (PLM) for the presence of asbestos. (Carolina Environmental, Inc. subdivided several of the samples to better characterize the layers of potential ACM. As such, a total of 232 samples were analyzed.) 3.1. Suspect materials included in sampling The following materials were identified as suspect during the preliminary building survey performed on December 2, 1998 and were sampled during the subsequent ACM survey conducted on January 5 and 6, 1998: Thermal System Sprayed -On Fire -Proofing for Columns Insulation: Sprayed -On Fire -Proofing for Beams Floor Materials: 12-inch x 12-inch Floor Tile and Mastic (various colors) 9-inch x 9-inch Floor Tile and Mastic (various colors) Linoleum (various colors) Mastic Concrete Floor Leveling Compound Atrium Floor Rock Glaze Surfacing Wall Drywall Materials: 2 ft x 2 ft Ceiling Tile (various types) 2 ft x 4 ft Ceiling Tile (various types) Interior Wall Covering (Behind Main Entrance) Sprayed -On Ceiling Material Revised: October 29, 1998 5 O'Brien & Gere Engineers, Inc. i:\..\67l3.002\5\rptrev3.wpd Asbestos survey Miscellaneous Window Sealant Caulking for Outside Windows Materials: Kitchen Sink Insulation Laboratory Sink Insulation Water -Proofing Unfinished Sheetrock Joint Compound Outside Flashing Materials around Building and on Roof Suspect ACMs were divided into homogeneous sampling areas. Homogeneous sampling areas are those areas that contain materials which are uniform in function, age, and physical appearance. Homogeneous areas may be adjacent to each other or in separate areas within a building. A total of 160 samples were collected from the homogeneous sampling areas shown on Figures 1 through 7 and 232 samples were analyzed (due to material layering within the collected samples). 3.2. Suspect materials not included in sampling During the preliminary survey and the subsequent ACM survey, the following suspect ACM was also identified: • Built-up roofing materials • Sealants for roof equipment • Insulation for fire doors • Sprayed -on insulation on the structural members above the second floor ceiling tiles and overlying sheetrock • Transite in laboratory hoods • Transite in shock -resistance testing equipment. Sampling of these materials would have required destructive testing during the ACM survey. Instead, it is recommended that these materials be duly noted and that ACM sampling and analysis be performed immediately (within the week) prior to the proposed renovations (to identify ACM content) which would affect these areas. 3.3. Confirmed asbestos -containing materials Based on the analytical results (which are provided in Attachment 1), the following materials were confirmed to be ACM by PLM analysis based on sampling conducted on January 5 and 6, 1999: O'Brien & Gere Engineers, Inc. 6 Revised: October 29, 1998 i:\..\6713.002\5\rptrev3.wpd 3. Asbestos-containi2g material survey Table 3-1. Confirmed asbestos -containing materials (January 3 - 6, 1998) Sample Designation Sample Description Analytical Results WC-01 Window Sealant Caulking for 5% Chrysotile Outside Windows 5%Tremolite WC-02 Window Sealant Caulking for 5% Chrysotile Outside Windows 5%Tremolite LTAN-01 Floor Tile and Mastic - Light Tan - Basement 15% Chrysotile for Mastic Hallway Non -Detect for Floor Tile LTAN-02 Floor Tile and Mastic - Light Tan - Basement 15% Chrysotile for Mastic Hallway Non -Detect for Floor Tile CRT -CI Floor Tile and Mastic - Cream with Yellow 3% Chrysotile for Floor Tile Mastic - Basement Stairwell Non -Detect for Mastic CRT-02 Floor Tile and Mastic - Cream with Yellow 3% Chrysotile for Floor Tile Mastic - Basement Stairwell Non -Detect for Mastic FT-2 5 Floor Tile and Mastic - Main Area of East Office 5% Chrysotile for Floor Tile Building 15% Chrysotile for Mastic FT-26 Floor Tile and Mastic - Main Area of East Office 3% Chrysotile for Floor Tile Building 15% Chrysotile for Mastic CRFT-01 Floor Tile and Mastic - Cypress Room 5% Chrysotile for Floor Tile IS % Chrysotile for Mastic CRFT-02 Floor Tile and Mastic - Cypress Room 5% Chrysotile for Floor Tile 15% Chrysotile for Mastic DTAN-01 Floor Tile and Mastic - Dark Tan - 5% Chrysotile for Mastic Basement Non -Detect for Floor Tile MTAN-01 Floor Tile and Mastic - Medium Tan - 15% Chrysotile for Mastic Basement Mon -Detect for Floor Tile SK-04 Insulation Sample - Meteorology Lab Sint: 10% Chrysotile W WFT-01 Floor Tile and Mastic - Repair Shop, Downstairs 10% Chrysotile for Mastic Office Non -Detect for Floor Tile W WFT-02 Floor Tile and Mastic - Repair Shop, Downstairs 10% Chrysotile for Mastic Office Non -Detect for Floor Tile The positive ACM areas from the January 5 and 6, 1998 survey are denoted by red sample designations and red shading on Figures 1 through 7. Revised: October 29, 1998 7 O'Brien & Gere Engineers, Inc. i:l_.16713.002151rptrev3 .wpd Asbestos su 3.4. Confirmed non -asbestos -containing materials Based on the analytical results (which are provided in Attachment 1), the following materials were identified to be non -ACM through PLM analysis based on sampling conducted on January 5 and 6, I998: Table 3-2, Confirmed non -asbestos containing materials (danuary 5-6, 1998) Sample Designation Sample Description CT-01 Ceiling the (2 ft by 4 ft) from Main South End Training room - bottom floor CT-02 Ceiling the (2 ft by 4 ft) from Main South End Training room - bottom floor CT-03 Ceiling the (2 ft by 4 ft) from Main South End Training room - top floor CT-04 Ceiling the (2 ft by 4 ft) from Main South End Training room - top floor CT-05 Ceiling tile (2 ft by 2 ft) from Southwest Mezzanine - top floor CT-06 Ceiling tile (2 ft by 2 ft) from Southwest Mezzanine - top floor CT-07 Ceiling the (2 ft by 2 ft) from Southwest Comer Room - top floor CT-08 Ceiling tile (2 ft by 2 ft) from Southwest Comer room - top floor CT-09 Ceiling tile (2 ft by 4 ft) Women's and Men's Bathroom - Southwest Side CT-I0 Ceiling tile (2 ft by 2 ft) Break -room CT-11 Ceiling tile (2 ft by 2 ft) Breakroom CT-12 Ceiling tile (2 ft by 2 ft) Breakroom CT-13 Ceiling tile (2 ft by 2 ft) CT-14 Ceiling tile - Bay Area CT-15 Ceiling the - Fire Room CT-16 Ceiling tile (2 ft by 4 ft) - Bathrooms CT-17 Ceiling tile (2 ft by 4 ft) - Bathrooms CT-18 Ceiling the (2 ft by 4 ft) - Upstairs AAB computer room CT-19 Ceilin-- tile CT-20 Ceiling tile CT-21 Ceiling tile - Mineral Wool - Conference Room CT-22 Ceiling tile - Mineral Wool - Conference Room SK-01 Insulation Sample - Kitchen Sink - Southwest Mezzanine - top floor O'Brien & Gere Engineers, Inc. S Revised: October 29, 1998 i:1..167 13.002151rptrev3.wpd 3. Asbestos -containing material survey Table 3-2. Confirmed non -asbestos containing. materials (January 3-6. 1998) Sample Designation Sample Description SK-02 Insulation Sample - Upstairs Sink SK-03 Insulation Sample - Upstairs Sink TFT-0I Floor the - Tan - Main hallways/closet TFT-02 Floor tile - Tan - Main hallways/closet WB-01 Wall board - Drywall sample WB-02 Wall board - Utility Room - Southwest Side WB-03 Wall board - Downstairs on West Side WB-04 Wall board - East Breakroom Hallway WB-05 Wall board - MDR Area - Loading Dock Area WB-06 Wall board - Electrical Closet - Upstairs SE BYFT-01 Floor file - Brownish Yellow - Repair Shop - downstairs BYFT-02 Floor tile - Brownish Yellow - Repair Shop - downstairs WP-01 Water proofing, - East Battery Room WP-02 Water proofing - East Battery Room TS-01 Floor tile - Tan Speckled - Emergency Management Service Center TS-02 Floor the - Tan Speckled - Emergency Management Service Center PPCT-01 Ceiling tile - Meteorology Lab PPCT-02 Ceiling file - Meteorology Lab LBSFT-01 Floor the - Light blue streaked - upstairs in Utility Room LBSFT-02 Floor the - Light blue streaked -.upstairs in Utility Room OW FT-01 Floor the - Of --White - Small Office to the Left of the Facilities Service Area OWFT-02 Floor tile - Off -White - Small Office to the Left of the Facilities Service Area LGFT-01 Floor tile - Light Grey - Janitor's Closet LGFT-02 Floor tile - Light Grey - Janitor's Closet GRFT-01 Floor tile - Grey - Food Court and Hallway GR.FT-02 Floor tile - Grey - Food Court and Hallway YM-01 Yellow Mastic YM-02 Yellow Mastic Revised: October 29, 1999 9 O'Brien & Gere Engineers, Inc. i:\..\6713.002\5\rptrev3.wpd Asbestos survey Table 3-2. Confirmed non -asbestos containing materials (January 5-6, 1998) Sample Sample Designation Description WLB-01 Wall board WLB-02 Wall board GBSFT-01 Floor tile - Grey with Black Specks OBSFT-02 Floor the - Grey with Black Specks FTB W-0101 Floor tile - south end entrance foyer FTBW-0102 Floor tile - Manufacturing area (crack in walkway) FTB W-0103 Floor tile - Manufacturing area IT-01 Insulation tape - Manufacturing area IT-02 Insulation tape - Manufacturing area TWFTM-01 Floor the and mastic-Tan/White - Basement TWFTM-02 Floor the and mastic-TanVhite - Basement BFT-01 Floor tile - Blue - Upstairs in Repair Area BFT-02 Floor the - Blue - Upstairs in Repair Area LFT-01 Floor the - Light Tan - Office area LIN-01 Kitchenette Linoleum sample - Southwest Mezzanine - top floor LC-01 Concrete floor - South End - "Leveling Compound" DGRFT-03 Floor tile - Dark Grey - Center Hall DGRFT-04 Floor the - Dark Grey - Center Hall DFT-03 Floor tile - Dark Tan - Office area DFT-04 Floor tile - Dark Tan -Office area WFT-05 Floor tile - White - Outer Hall WFT-06 Floor the - White - Outer Hall LFT-0I Floor tile - Li.aht Tan - Office area LFT-02 Floor tile - Light Tan - Office area IWC-01 Interior Wall and Ceiling Covering - Behind the Main Entrance IWC-02 Interior Wall and Ceiling Covering - Behind the Main Entrance SC-03 Surface Ceiling from Atrium - Cafeteria Area O'Brien & Gere En.gineers, Inc. 10 Revised: October 29, 1998 j:\.A6713.002\5\Tptrev3.wpd 3. Asbestos -containing material survey Table 3-2. Confirmed non -asbestos containing materials (January 5-6, 1998 Sample Designation Sample Description SC-04 Surface Ceiling from Atrium - Cafeteria Area SPC-01 Sprayed -on Ceiling - basement - former men's sauna SPC-02 Sprayed -on Ceiling - basement - former lady's sauna PWFT-01 Floor the - Small electrical room near Sandlewood Room PWFT-02 Floor tile - Small electrical room near Sandlewood Room FP-01 Sprayed -on Fireproofing - Basement compressor room FP-02 Sprayed -on Fireproofing - Basement compressor room FP-03(1) Sprayed -on Fireproofing - Basement compressor room FP-03(2) Sprayed -on Fireproofing - Basement compressor room FP-04 Fireproofing - Column and beam fireproofing FP-05 Fireproofing - Column and beam fireproofing TWFT-01 Floor tile - Tan -white - Basement comer TWFT-02 Floor file - Tan -white - Basement comer DRKTAN-01 Floor the - Dark tan - Southeast Cotner of Kitchen/Copy Room (2nd floor) DRKTAN-02 Floor file - Dark tan - Southeast Comer of Kitchen/Capy Room (2nd floor) BCT-01 Ceiling the (2 ft by 2 ft) - Basement or Sink Insulation - Main Distribution Center R-8 Room/Dark Room BCT-02 Ceiling tile (2 ft by 2 ft) - Basement or Sink Insulation - Main Distribution Center R-8 Room/Dark Room CCFT-01 Floor tile - Cream - Basement electrical equipment closet CCFT-02 Floor tile - Cream - Basement electrical equipment closet ERFT-01 Floor file - electrical room ERFT-02 Floor file -electrical room ACT-0I Ceiling tile - Accoustical - Auditorium ACT-02 Ceiling file - Accoustical - Auditorium CS-01 Sprayed -on Ceiling - East Guard Station CS-02 Sprayed -on Ceiling - East Guard Station VFT-01 Floor Tile and Mastic - Offices VFT-02 Floor Tile and Mastic - Closet Revised: October 29, 1998 11 O'Brien & Gere Engineers, Inc. is\..\6713.002\5\rptrev3.wpd Asbestos su O'Brien & Gere Engineers, Inc. Table 3-2. Confirmed non -asbestos containing materials (January 3-6, 1998 Sample Sample Designation Description RCT-01 Ceiling tile - recessed - central offices RCT-02 Ceiling the - recessed - central offices WBSFT-01 Floor tile - Front office - Aralia Health Center WBSFT-02 Floor -tile - Side office - Aralia Health Center UFSRJC-01 Unfinished Sheetrock Joint Compound - Basement closet near elevator UFSRJC-02 Unfinished Sheetrock Joint Compound - Basement closet near elevator BGSFT-01 Floor tile - Blue -Grey Speckled - Guard House BGSFT-02 Floor tile - Blue -Grey Speckled - Guard House DTFT-10 Floor tile - Dark Tan DM-1 I Floor tile - Dark Tan GSFT-01 Floor the - Southeast Guard Station GSFT-02 Floor tile - Southeast Guard Station WWBS-01 Floor the - White with brown spots - Cable Room #10 WWBS-02 Floor tile - White with brown spots - Cable Room n 10 GBFT-01 Floor tile - General Store - Cafeteria Area/Atrium area GBFT-02 Floor tile - GeneraI Store - Cafeteria Arca/Atrium area RG-01 Rock Glaze in Atrium RG-02 Rock Glaze in Atrium RRCT-0I Ceiling tie - Recessed rough - Hickory Room RRCT-02 Ceiling tile - Recessed rough - Hickory Room AFG-01 Asphalt Fiberglass - Cafeteria Area/Atrium Area AFG-02 Asphalt Fiberglass - Cafeteria Area/Atrium Area CON-01 Concrete outside wall coating WBFT-10 Floor tile- Whitish (2nd floor) EOFT-01 Floor the - Grey - Executive office CTSLNT-01 Cooling Tower Sealant SRC-20 Ceiling the - SR in bathrooms in Southwest corner by elevator (2nd floor) 12 Revised: October 29, 1998 i:1..16713.002151rptrev3.wpd 3_ Asbestos -containing material survey Table 3-2. Confirmed non -asbestos containing materials (January 5-6, 1998) Sample Sample Designation Description WBCT-0I Ceiling tile - Wallboard - sheetrock with surfacing SK-10 Insulation sample - sink in Executive Office Kitchen OUTFL-01 Outside Flashing at Basement Door - North side WF-01 White Flashing on hoof DCCFT-01 Floor tile - Deep cream - Data communication complex DBFT-22 Floor tile - Dark Brown (2nd floor) FTTEST-01 Floor the - Cream - Office Main Room FTTEST-02 Floor tile - Cream - Office Main Room MEST-03 Floor tile - Tan Mottled with Yellow Mastic - Office Stairwells FTTESTT-04 Floor tile - Tan Mottled with Yellow Mastic - Office Stairwells These non -ACM areas are denoted by blue sample designations on Figures 1 through 7. Revised: October 29, 1998 13 O'Brien & Gere Engineers, Inc. i:1..16713.002151rptrev3.wpd Asbestos survey O'Brien & Gere Engineers, Inc. 14 Revised: October 29, 1998 i:1..16713.002151rptrev3 .wpd 4. Survey conclusions and recommendations 4.1. Confirmed asbestos -containing materials Based on the analytical results (which are provided in Attachment 1), the followinc, materials were confirmed to be ACM by PLM analysis based on sampling conducted on January 5 and 6, 1998: Table 4-1. Confirmed asbestos -containing materials (January 5-6, 1998 Sample Designation Sample Description Analytical Results WC-01 Window Sealant Caulking for 5%Chrysotile Outside Windows 5%Tremolite WC-02 Window Sealant Caulking for 5% Chrysotile Outside Windows 5%Tremolite LTAN-01 Floor Tile and Mastic - Light Tan - 15% Chrysotile for Mastic Basement Hallway Non -Detect for Floor Tile LTAN-02 Floor Tile and Mastic - Light Tan - 15% Chrysotile for Mastic Basement Hallway Non -Detect for Floor Tile CRT41 Floor Tile and Mastic - Cream with Yellow 3% Chrysotile for Floor Tile Non - Mastic - Basement Stairwell Detect for Mastic CRT-02 Floor Tile and Mastic - Cream with 3% Chrysotile for Floor Tile Yellow Mastic - Basement Stairwell Non -Detect for Mastic FT-25 Floor Tile and Mastic - Main Area of East 5% Chrysotile for Floor Tile Office Building 15% Chrysotile far Mastic FT-26 Floor Tile and Mastic - Main Area of East 5% Chrysotile for Floor Tile Office Building 15% Chrysotile for Mastic CRFT-01 Floor Tile and Mastic - Cypress Room 5% Chrysotile for Floor Tile 15% Chrysotile for Mastic CRFT-02 Floor Tile and Mastic - Cypress Room 5% Chrysotile for Floor Tile 15% Chrysotile for Mastic DTAN-01 Floor Tile and Mastic - Dark Tan - 5% Chrysotile for Mastic Basement Non -Detect for Floor Tile MTAN-01 Floor Tile and Mastic - Medium Tan - I5%o Chrysotile for Mastic Basement Non -Detect for Floor Tile Revised: October 29, 1998 15 O'Brien & Gere Engineers, Inc, i:1-.16713.002151rptrev3. wpd Asbestos su Table 4-1. Confirmed asbestos -containing materials (January 5-6, 1998) Sample .analytical Results Designation Sample Description SK-04 Insulation Sample - Meteorology Lab Sink 10% Chrysotile W WFT-01 Floor Tile and Mastic - Repair Shop, 10% Chrysotile for Mastic Downstairs Office Non -Detect for Floor Tile WWFT-02 Floor Tile and Mastic - Repair Shop, 10% Chrysotile for Mastic Downstairs Office Non -Detect for Floor Tile The positive ACM areas from the January 5 and 6, 1998 survey are denoted by red sample designations and red shading on Figures 1 through 7. It is recommended that the above -referenced materials be removed prior to the proposed renovation materials. O'Brien & Gere can assist with the identification and removal of these materials, if needed. 4.2. Continued suspect asbestos -containing materials During the preliminary survey and the subsequent ACM survey, the following suspect ACM was also identified: • Built-up roofing materials • Sealants for roof equipment • Insulation for fire doors • Sprayed -on insulation on the structural members above the second floor ceiling tiles and overlying sheetrock • Transite in laboratory hoods • Transite in shock -resistance testing equipment. Sampling of these materials would have required destructive testing during the ACM survey. Instead, it is recommended that these materials be duly noted and that ACM sampling and analysis be performed immediately (within the week) prior to the proposed renovations (to identify ACM content) which would affect these areas. O'Brien &Gere Engineers, Inc. 16 Revised: October 29, 1998 j:\..\67l3.002\5\rptrev3.wpd 4.3. Additional notes 4. Survey conclusions and recommendations The office areas were inspected for floor tile through a random inspection process, which required the removal of the overlying carpeting. Based on this inspection procedure, the areas denoted in Figures 3 through 6 were found to contain asbestos -containing floor tile and mastic. However, it should be noted that a complete inspection is recommended as the carpeting is being removed prior to the renovation work. In addition, as noted on Figure 5, one area of floor the and mastic on the first floor in the West Office Building was not specifically sampled due to its resemblance to floor the identified and sampled in the basement. The floor the and mastic in the basement was identified to be ACM. It is recommended that the floor tile and mastic on the first floor be sampled to confirm whether it is ACM prior to the renovation activities. This additional sampling may confirm the floor tile and mastic to be non -ACM, which would reduce the removal and disposal costs. 4.4. Inspection accreditation This inspection was conducted by Brantley D. Chesson, who holds Accreditation Number 10002 with the Health Hazard Control Branch of the North Carolina Department of Environment and Natural Resources. Revised: October 29, 1998 17 O'Brien & Gere Engineers, Inc. i A..16713 ,0021151rptrev3 .wpd Asbestos su O'Brien & Gere Engineers, Inc. 18 Revised: October 29, 1998 i:\.A6713.002\5\rptrev3.wpd 5. Subsequent asbestos abatement activities The purpose of this section is to document the asbestos abatement activities which have been conducted at the Nortel RTP facility since the January 5 and 6, 1998 asbestos survey. As such, this section describes the measures taken to remove, encapsulate, and/or include identified ACM within an operations and maintenance plan. 5.1. July 13 - 24,1998 abatement project O'Brien & Gere and NEO Corporation were retained to remove ACM floor tile and mastic from the first floor of the Nortel RTP facility's east office building on July 13 through 24, 1998. This abatement project resulted in the removal of ACM floor tile and mastic from the area designated with green shading on Figure 3. Information concerning the removal procedures, disposal documentation, and certifications ofthose personnel involved in the ACM removal project are provided under separate cover. 5.2. September 4 - 6, 1998 abatement project O'Brien & Gere and NEO Corporation were retained to remove ACM floor the and mastic from the basement floor of the Nortel RTP facility's west office building on September 4 through 6, 1998. This abatement project resulted in the removal of ACM floor tile and mastic from the area designated with purple shading on Figure 7. Information concerning the removal procedures, disposal documentation, and certifications of those personnel involved in the ACM removal project are provided under separate cover. Revised: October 29, I998 19 O'Brien & Gere Engineers, Inc. i:1..16713.002151rptrev3. wpd Asbestos survey 5.3. October 14-15 and 21-22,1998 abatement project O'Brien & Gere and NEO Corporation were retained to remove ACM floor the and mastic from the first floor of the Nortel RTP facility's manufacturing area on October 14-15, 1998 and on October 2I-22, 1998. This abatement project resulted in the removal of ACM floor the and mastic from the area designated with brown shading on Figure 1. Information concerning the removal procedures, disposal documentation, and certifications of those personnel involved in the ACM removal project are provided under separate cover. O'Brien & Gere Engineers, Inc. 20 Revised: October 29, 1998 i:1..16713.002151rptrev3.wpd