REPORT OF HAZARDOUS MATERIALS CONSULTING SERVICES

Transcription

1 REPORT OF HAZARDOUS MATERIALS CONSULTING SERVICES MUHJ A Repair/Renovate VOQ F.68 Langley Air Force Base Hampton, Virginia GER prepared for Waller Todd & Sadler Architects 1909 Cypress Avenue Virginia Beach, Virginia Prepared by Matthew J. Rille Virginia Asbestos Inspector # Southern Professional Center Southern Boulevard, Suite 101 Virginia Beach, Virginia (757) Fax (757) germail@geronline.com

2 Waller Todd & Sadler Architects January 5, Cypress Avenue Virginia Beach, VA, Attention: Subject: Mr. David Isbell Hazardous Materials Consulting Services MUHJ A Repair/Renovate VOQ F.68 Langley Air Force Base Hampton, Virginia GER GeoEnvironmental Resources, Inc. has completed our hazardous materials sampling of the subject facility. This work was completed in accordance with the scope of work and fee outlined in GER proposal P R2 dated 26 September This report is relevant to the date of our field work and should not be relied upon for later dates. We appreciate the opportunity of completing this work for WTS. If there are any questions concerning this report, please contact us. Sincerely, GeoEnvironmental Resources, Inc. Matthew J. Rille H. Nelson Adcock, Jr., P.E. Industrial Hygienist President Virginia Asbestos Inspector (# ) Virginia Asbestos Inspector (# ) Attachments - Section 1: Report Section 2: Bulk Sample Results/Laboratory Analysis Sheets Section 3: Sample location maps Section 4: Photographs Southern Professional Center I 2712 Southern Boulevard, Suite 101 Virginia Beach, Virginia (757) Fax (757) germail@geronline.com

3 TABLE OF CONTENTS Section 1 Report Section 2 Bulk Sample Results/ Laboratory Sheets Section 3 Sample Location Map Section 4 Photographic Documentation

4 Report of Hazardous Materials Consulting Services MUHJ A Repair/Renovate VOQ F.68 Langley Air Force Base Hampton, Virginia GER PROJECT DESCRIPTION The project, VOQ F.68 is a two-story, 17,500 SF facility that was constructed in the 1960 s. The building serves as visiting officer s quarters. The building construction is concrete/cmu with an asphalt built-up roof on a crawl space. The entire interior will be gutted and reconfigured. Windows and exterior doors will be replaced. HVAC systems, plumbing systems, electrical systems, fire suppression systems, and new interior finishes will be provided throughout. Prior to the renovation work, hazardous materials must be identified in order to protect workers and the environment. Our scope of work was to collect and analyze bulk samples of suspect asbestos-containing materials (ACM), suspect polychlorinated biphenyl (PCBs) exterior sealants and paint chip samples. We also inspected existing lighting fixtures for possible PCB-containing ballast. Bulk samples were collected of visibly accessible materials expected to be disturbed by the renovation work. We were not provided with previous asbestos sampling or environmental reports concerning this facility. ASBESTOS BULK SAMPLING The building is currently in use and has been renovated in different areas over the years. Suspect asbestos-containing materials (ACM) consist primarily of floor tile, spray-applied ceiling material, carpet mastic, base cove, drywall, thermal system insulation, caulks, and mastics. Roofing materials observed consisted of a built-up asphalt roof with asphalt flashing. In November and December of 2011, Fifty bulk samples of suspect ACM were collected by Brian T. Hyde and Matthew J. Rille, Virginia Licensed Asbestos Inspectors. Samples were collected from areas in the building where proposed renovations will take place. Table 1, attached, is a summary of the sample materials, sample location, and laboratory results. Laboratory results are contained in Section 2 of this report. Drawings showing the approximate sample locations, are contained in Section 3. Destructive activities such as breaking into walls, ceilings, or floors were not performed in order to obtain samples. Therefore, if during the renovation process suspect hazardous materials are uncovered, they must be properly addressed. As the sample results indicate, the following materials were determined to contain asbestos: Expansion tank - mudded insulation & lagging (mechanical room) Joint compound The following materials were assumed to contain asbestos: Pipe insulation/lagging (assumed) Fire doors (assumed) Samples were analyzed using polarized light microscopy (PLM) and dispersion staining techniques. The analytical method was conducted in accordance with Method EPA-600/M Analysis was performed by Analytics Corporation, a NVLAP participant, NVLAP number ASBESTOS DISCUSSION The EPA defines ACM as any material which contains greater than 1% asbestos by weight. The following categories of ACM were identified in the building: Friable ACM Pipe Insulation/fittings (Assumed): A visual inspection of the building and crawl space area did not identify pipe insulation materials other than fiberglass. Pipe insulation/fittings are assumed to exists in walls and chases within the building. All non-fiberglass pipe insulation that exist in the building and its crawl space should be assumed to contain asbestos. (Estimated quantity LF) Mudded insulation & lagging (30% Chrysotile): Found on the expansion tank in the mechanical room. This material is classified GER

5 Repair/Renovate VOQ F.68 GER Page 2 RACM and was in fair condition at the time of the survey. (Estimated quantity - 50 SF). Joint compound (5% Chrysotile): Joint compound is found in stairwell landings. This material is assumed to be found in other areas throughout the building on walls and ceilings. (Estimated quantity - 48,000 LF). Fire Doors (Assumed): Doors in stairwells observed contained fire-rating labels on the door frames. Doors and frames in stairwells are assumed to be asbestos-containing. (Estimated quantity - 4 each) All ACM in the building must be removed prior disturbance due to renovation. Therefore the pipe insulation/fittings, mudded insulation & lagging, joint compound and fire doors must be removed by a Virginia licensed asbestos abatement contractor prior to renovation. All asbestos abatement work shall be performed in accordance with local, state and Federal regulations including but not limited to: 29CFR Asbestos 40CFR61 - National Emission Standards for Hazardous Air Pollutants 9VAC Virginia Solid Waste Management Regulations 18VAC Virginia Asbestos Licensing Regulations PAINT SAMPLING Three paint chip samples were collected by GER. The attached, Table 2, summarizes the samples collected and their laboratory results. The laboratory analysis results are contained in Section 2. The purpose of our sampling was to obtain representative data on the concentrations of lead, cadmium, and chromium in the existing painted surfaces scheduled to be disturbed by the work. Paint samples were collected from door frames and walls. Our inspection services were not intended to meet the requirements of HUD sampling protocols for lead containing paint. Paint samples were analyzed using inductively coupled plasma emission spectroscopy (ICP). The analytical method was conducted in accordance with the NIOSH 7082 Method by Analytics Corporation, a National Lead Laboratory Accreditation Program (NLLAP) approved participant. LEAD, CADMIUM, & CHROMIUM PAINT DISCUSSION There are two frequently used standards to define lead-based paint, the Consumer Product and Safety Commission (CPSC) and the Department of Housing and Urban Development (HUD). In 1978, the CPSC, acting under the authority of the Consumer Product Safety Act, banned the sale of paint containing more than 0.06% lead by weight to consumers. Paint which contains more than 0.06% lead by weight is defined as Lead-containing paint (LCP). The Department of Housing and Urban Development (HUD) defines Lead-based paint (LBP) as any paint, varnish, shellac, or other coating that contains lead equal to or greater than 1.0 mg/cm 2 as measured by X-ray fluorescence (XRF) analyzer or laboratory analysis, or 0.5% by weight as measured by laboratory analysis. The Occupational Safety and Health Administration (OSHA) Lead in Construction Standard (29 CFR ) does not define lead-based paint. However, to comply with OSHA, all painted surfaces with a lead concentration at or above the laboratory s minimum detection limit (MDL) should be considered lead containing. Compliance with this standard is required even for paints with less than 0.5% or 0.06% lead by weight. Therefore, painted surfaces exceeding the MDL should not be disturbed without taking the appropriate precautions when performing certain high risk tasks. Activities such as scraping, sanding, welding/torching and disturbance of painted surfaces could potentially release leaded dust. OSHA has categorized the following high risks tasks into three groups: Group 1: Group 2: manual demolition manual scraping heat-gun applications power tool cleaning with dust collection system spray paint with lead-based paints lead burning using lead-containing mortar power tool cleaning without dust collection system rivet blasting GER

6 Repair/Renovate VOQ F.68 GER Page 3 Group 3: cleanup activities where dry expendable abrasives are used movement and removal of abrasive blasting enclosures abrasive blasting welding, cutting and burning on steel structures Analytical results for lead paint show that all of the samples collected and analyzed were found to have lead concentrations above the laboratory's MDL. Therefore, all existing painted surfaces scheduled for renovation/demolition should be considered lead containing for the purposes of complying with 29 CFR in order to protect workers and the environment. Paints containing cadmium and chromium are often found as protective coatings on structural steel or exterior coatings on metal surfaces. These paints tend to be red, yellow or orange and are typically the first layer. All of the bulk paint chip samples were also tested for Cadmium and Chromium. Sampling results for cadmium and chromium indicated that all of the samples collected and analyzed were found to have concentrations above the MDL for chromium, no cadmium was detected above the MDL. The National Institute for Occupational Safety and Health (NIOSH) identifies chromium as a confirmed carcinogen and cadmium as a suspect carcinogen. Construction Standards established by OSHA for cadmium, lead, and chromium are: Cadmium 29 CFR Lead 29 CFR Chromium 29 CRF The permissible exposure limits (PEL) established by OSHA are 5 ug/m 3 for cadmium, 5 ug/m 3 for chromium (chromates) and 50 ug/m 3 for lead. If the PEL is exceeded, appropriate measures must be taken to reduce the hazard and provide training and personal protective equipment. surfaces to ensure protection of workers and the environment. All lead, cadmium and chromium paint work shall be performed in accordance with all local, state and Federal regulations to protect workers and the environment, including but not limited to: 29CFR Lead 29CFR Chromium 29CFR Cadmium 9VAC Virginia Hazardous Waste Management Regulations 9VAC Virginia Solid Waste Management Regulations 18VAC Virginia Lead-Based Paint Activity Regulations WASTE CLASSIFICATION FOR PAINTED BUILDING COMPONENTS Building components and demolition waste streams which are painted must be properly characterized prior to disposal. The EPA Resource Conservation and Recovery Act (RCRA) regulations establish the limits for RCRA leachable metals (lead, cadmium, chromium, etc.). Leachable metals means the amount of metals likely to leach from the waste into the surrounding soil/groundwater system of a landfill. The leachable concentration of chemicals in a waste stream is determined by an analytical method called the toxicity characteristic leaching procedure (TCLP). Waste stream TCLP concentrations that equal or exceed the RCRA limits must be transported to a hazardous waste treatment, storage, or disposal facility. Precautions should be implemented to prevent the storage of any hazardous waste for more the 90 days. Specific permits are necessary to store hazardous waste in excess of 90 days. MOLD INSPECTION The PEL is an airborne measurement to address worker exposure. There is no direct correlation between lead, cadmium, and chromium concentrations in paint and worker exposure. Only when these concentrations are below the laboratory s MDL, is worker exposure not an issue. Appropriate precautions should be taken during the disturbance of all painted We performed a visual inspection of the accessible interior areas and the exterior of the building. The roof and interior/exterior walls were inspected for signs of water intrusion and/or mold growth. During our inspection we observed water stained building materials around windows and exterior doors. During a rain event we observed flashings at entrance door soffits leaking. This could be a possible source of water intrusion into the building. GER

7 Repair/Renovate VOQ F.68 GER Page 4 Vinyl wallpaper covers all interior walls except for storage closets and mechanical rooms. Vinyl wallpaper creates a vapor barrier and traps moisture within building materials which can lead to mold growth. Suspect mold growth was observed on the interior surfaces of exterior walls behind the vinyl wallpaper. This is likely a result of conditioned air from the HVAC console units being trapped behind the window curtains creating a cooler surface (first condensing surface) than the rest of the interior surfaces. This allows condensation to form on the exterior wall during the warmer months of the year which has lead to suspect mold growth. During our inspection we also observed suspect mold growth behind the vinyl wallpaper in the bathrooms. This is likely due to the typically humid environment of a bathroom. It should also be noted that we observed windows and doors being propped open during a significant Rain event. House keeping staff should be instructed to keep windows and door closed during rain events. As of July 1, 2011 anyone performing mold remediation in the State of Virginia on greater than 10 square feet of surface area must be a licensed Mold Remediator in the State of Virginia. Based on our inspection we provide the following recommendations for your consideration: 1. All sources of exterior water intrusion around windows and doors should be corrected before any other remediation activities commence. 2. The vinyl wallpaper should be removed by a Virginia Licensed Mold Remediator to determine the extent of the suspect mold contamination. 3. All areas of suspect mold contaminated drywall should be removed by a Virginia Licensed Mold Remediator. Wall cavities should be inspected for suspect mold growth/water intrusion at this time. 4. Suspect mold contaminated curtains should be removed by a Virginia Licensed Mold Remediator. 5. Consider an alternate wall finish other than vinyl wall paper. If vinyl wall paper must be used it should be perforated prior to installation. 6. Consider an alternate window covering such as blinds that will not impede air flow around the HVAC console units. 7. Install exhaust fans in bathrooms to control humidity. 8. Instruct housekeeping staff to keep windows and doors shut during rain events. All mold work shall be performed in accordance with all local, state and Federal regulations to protect workers and the environment, including but not limited to: 9VAC Virginia Hazardous Waste Management Regulations 9VAC Virginia Solid Waste Management Regulations 18VAC Mold Inspector and Remediator Regulations POLYCHLORINATED BIPHENYLS (PCBS) On January 1, 1979, the Environmental Protection Agency (EPA) banned the manufacturing of light ballasts which contain PCB s and phased out most PCB uses. Therefore, all light ballasts manufactured prior to January 1, 1979 without Non-PCB markings must be considered PCB containing. The EPA s actions subjects all substances containing over 50 ppm PCBs to regulatory control (with the exception of PCB-contaminated waste oil which is prohibited at any level). Our field investigation of existing light fixtures indicated that light fixtures in the building were primarily the incandescent type. Fluorescent fixtures were observed in stairwells only. Ballasts observed were manufactured by Advance and were marked as No PCBs. We do not anticipate any fixtures to have PCB-containing ballasts, although all light tubes and lamps are assumed to be mercury containing. All PCB work shall be performed in accordance with all local, state and Federal regulations to protect workers and the environment, including but not limited to: GER

8 Repair/Renovate VOQ F.68 GER Page 5 40CFR761 - Polychlorinated Biphenyls (PCBs) Manufacturing, Processing, Distribution In Commerce, and Use Prohibitions 9VAC Virginia Hazardous Waste Management Regulations 9VAC Virginia Solid Waste Management Regulations PCB BULK SAMPLING The Environmental Protection Agency (EPA) recently issued guidelines recommending testing for PCBs in peeling, brittle, cracking or deteriorated sealant in schools built between 1950 and In November of 2011, 4 bulk samples of exterior sealants were collected. The samples were collected of exterior sealants associated with windows and doors. Samples were collected at areas exhibiting peeling, brittle, cracking or deteriorating conditions when possible. The sample locations were patched using new sealant. The attached, Table 3, summarizes the samples collected and their laboratory results. The laboratory analytical results are contained in Section 2. The samples were analyzed for PCBs using EPA method SW-846, The samples were extracted using the soxlet method. Analysis was performed by Universal Laboratories. PCB BULK SAMPLING RESULTS Sealants containing PCB concentrations above 50 parts per million (PPM) were identified in the following locations: 1. All windows (exterior sealants) PCB DISCUSSION Sealants associated with exterior windows contain PCB concentrations greater than 50 ppm. These sealants and the components in contact with the sealants must be removed in accordance with 40 CFR 761. DISPOSAL PCBs must be managed and disposed of in accordance with the Toxic Substance Control Act of 1976 (TSCA) and any applicable state and local regulations. Contractors managing PCB waste should be properly trained and licensed or certified as required by Federal, state and local regulations. Wastes containing less than 50 ppm PCB must be disposed of in a responsible manner. In the Commonwealth of Virginia they may be disposed of in a sanitary landfill or an industrial landfill which complies with 9VAC The landfills should also comply with the Subtitle D federal requirements. PCB containing sealant is considered PCB Bulk Product Waste if the concentration of PCBs in the sealant is greater than or equal to 50 ppm (see 40 CFR 761.3). PCB Bulk Product Waste must be disposed of in a TSCA approved incinerator, in a TSCA approved chemical waste landfill, or by an EPA approved alternative method. Sealant with PCB concentrations greater than 50 ppm is not authorized for use and must be disposed of as PCB bulk product waste according to 40 CFR Additionally, the definition of PCB bulk product waste includes building materials that have been coated or surfaced with PCBs. That is, masonry, wood, metals, and other building materials that are purposely coated with PCB-containing sealant are regulated as PCB bulk product waste if the sealant coating the building materials contains PCBs at concentrations greater than 50 ppm. It is possible that, while the disposal options are available under the federal PCB regulations, state or local regulations may not allow disposal of materials containing PCBs at concentrations greater than 50 ppm. It is also possible that a landfill, which meets the regulatory conditions, may choose not to accept materials containing PCBs at concentrations greater than 50 ppm. When finding a disposal facility, you should ensure that the facility is able and willing to accept the waste. LIMITATIONS This report has been prepared for the exclusive use of Waller Todd & Sadler Architects (WTS) and/or their agents. This service was performed in accordance with generally accepted environmental practices. No other warranty, expressed or implied, GER

9 Repair/Renovate VOQ F.68 GER Page 6 is made. Our conclusions and recommendations are based, in part, upon information provided to us by others and our site observations. We have not verified the completeness or accuracy of the information provided by others, unless otherwise noted. Our observations and recommendations are based upon conditions readily visible at the time of our site visit, November and December of 2011, and upon current industry standards. During our inspection, accessible areas were visually inspected for the presence of mold, asbestos, lead based paints and PCBs. The findings at these locations area assumed to be representative throughout the mold impacted areas of the building. Inaccessible areas, such as inside HVAC equipment and ducts were not visually inspected. Areas inspected for the above-referenced materials were limited to those designated by the client. The inspection did include the entire building and was limited to the areas described in the report. Under this scope of services, GER assumes no responsibility regarding response actions (e.g. O&M Plans, Remediation, Notifications, etc.) initiated as a result of these findings. GER assumes no liability for the duties and responsibilities of the Client with respect to compliance with local, state and Federal regulations. Compliance with regulations and response actions are the sole responsibility of the Client and should be conducted in accordance with local, state and Federal regulations and should be performed by appropriately licensed personnel, as warranted. GER

10 Bulk Sample Results / Laboratory Analysis Sheets Table 1 - Asbestos Sample Results Table 2 - Paint Sample Results Table 3 - PCB Sample Results

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12 Repair/Renovate VOQ F.68 GER Table 1: Bldg Asbestos Bulk Sample Results NO. SAMPLE LOCATION SAMPLE MATERIAL % & TYPE OF ASBESTOS 1 First floor, lobby Joint compound None detected 2 First floor, hallway 4" Tan base cove and mastic None detected 3 First floor, storage closet Block filler None detected 4 First floor, storage closet 12" Tan floor tile and mastic None detected 5 First floor, storage closet 12" Tan floor tile and mastic None detected 6 First floor, hallway Spray applied ceiling None detected 7 First floor, room 352, bathroom Joint compound None detected 8 First floor, room 352, closet Drywall None detected 9 First floor, hallway Carpet mastic None detected 10 First floor, hallway 4" Tan base cove and mastic None detected 11 First floor, North stairwell Spray applied ceiling None detected 12 First floor, storage closet Block filler None detected 13 First floor, hallway Spray applied ceiling None detected 14 First floor, room 355, closet Drywall None detected 15 First floor, hallway Carpet mastic None detected 16 Second floor, hallway Spray applied ceiling None detected 17 Second floor, storage closet Block filler None detected 18 Second floor, hallway Carpet mastic None detected 19 Second floor, room 376 Joint compound None detected 20 Second floor, hallway 4" Tan base cove and mastic None detected 21 Second floor, hallway Spray applied ceiling None detected 22 Second floor, room 371, closet Drywall None detected 23 Second floor, hallway Carpet mastic None detected 24 Second floor, hallway Spray applied ceiling None detected

13 Repair/Renovate VOQ F.68 GER Table 1: Bldg Asbestos Bulk Sample Results NO. SAMPLE LOCATION SAMPLE MATERIAL % & TYPE OF ASBESTOS 25 Second floor, room 368 Joint compound None detected 26 Second floor, hallway Spray applied ceiling None detected 27 Second floor, storage closet 12" White floor tile and mastic None detected 28 Second floor, storage closet 12" White floor tile and mastic None detected 29 Second floor, hallway Carpet mastic None detected 30 Mechanical room White pipe insulation mastic None detected 31 Mechanical room White pipe insulation mastic None detected 32 Mechanical room, expansion tank 33 Mechanical room, expansion tank 34 Mechanical room, expansion tank 35 Mechanical room, expansion tank Mudded insulation & lagging Mudded insulation & lagging Mudded insulation & lagging Mudded insulation & lagging 30% Chrysotile 30% Chrysotile 30% Chrysotile 30% Chrysotile 36 Exterior door Brown caulk None detected 37 Exterior door Brown caulk None detected 38 Exterior door Black caulk None detected 39 Exterior door Black caulk None detected 40 Exterior window Brown caulk None detected 41 Exterior window Brown caulk None detected 42 First Floor, South stairwell landing Joint compound Trace <1% Chrysotile 43 First floor, North stairwell landing Joint compound 1-5% Chrysotile 44 First floor, North exit Joint compound Trace <1% Chrysotile 45 Exterior front soffit Cementitous material None detected 46 Exterior front soffit Cementitous material None detected 47 Roof Gravel stop None detected 48 Roof Asphalt core None detected

14 Repair/Renovate VOQ F.68 GER Table 1: Bldg Asbestos Bulk Sample Results NO. SAMPLE LOCATION SAMPLE MATERIAL % & TYPE OF ASBESTOS 49 Roof Gravel stop None detected 50 Roof Asphalt core None detected

15 Repair/Renovate VOQ F.68 GER Table 2: Paint Chip Sample Results NO SAMPLE LOCATION COLOR % LEAD % CADMIUM % CHROMIUM > MDL Lead Cadmium Chromium P-1 1st floor utility closet, metal door frame Tan < X X P-2 1st floor utility closet, CMU wall White < X X P-3 2nd floor utility closet, metal door frame Tan < X X Table 3: PCB Sample Results NO PCB-1 PCB-2 PCB-3 PCB-4 SAMPLE LOCATION Exterior window frame, Southeast Exterior door frame, Northwest Exterior window frame, Southwest Exterior door frame, Southwest SAMPLE MATERIAL Sealant Sealant Sealant Sealant NOTES: 1. MI = This QC flag is used to indicate matrix interference, value is estimated. PCB CONTENT Arochlor MI mg/kg < 9mg/Kg Arochlor MI mg/kg < 9mg/Kg 2. Each sample was analyzed for the following Aroclors: 1016, 1221, 1232, 1242, 1248, 1254, 1260, 1262, Results shown as <9 mg/kg indicate each Aroclor was reported to be below the laboratory Reporting Limit of 1 mg/kg. Aroclors reported above 1 mg/kg are listed for each sample.

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42 Sample Location Maps

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44 N * P * * * 47 Second Floor Plan PCB3 PCB4 PCB P P LEGEND 1 1 P1 POSITIVE SAMPLE LOCATION FOR ASBESTOS NEGATIVE SAMPLE LOCATION FOR ASBESTOS PAINT SAMPLE LOCATION PCB1 PCB SAMPLE LOCATION PCB First Floor Plan * INDICATES ROOF SAMPLE LOCATION. NOTE - THE LOCATION FROM WHICH THE SAMPLES WERE OBTAINED SHOULD NOT BE INTERPRETED AS THE ONLY LOCATION WHERE THE MATERIAL EXISTS. SAMPLE LOCATION PLAN PROJECT: BUILDING 68 RENOVATIONS LANGLEY AIR FORCE BASE HAMPTON, VIRGINIA SCALE: NONE NUMBER: DATE: DEC DRAWING 1 OF 1

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46 Photographs

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48 Photo 1: Typical view of Building 68 with brick exterior and asphalt built-up roof. Roof is assumed to be asbestos-containing. Photo 2: View of drywall behind wall paper. Joint compound in drywall is asbestoscontaining and has suspect mold contamination in areas. Photographs Project: Repair/Renovate VOQ F.68 Langley Air Force Base Hampton, Virginia Number: Project # Photo Sheet 1

49 Photo 3: View of asbestos-containing mudded tank in mechanical room. Photo 4: View of asbestos-containing joint compound found in stairwell landings. This material is assumed to exist throughout. Photographs Project: Repair/Renovate VOQ F.68 Langley Air Force Base Hampton, Virginia Number: Project # Photo Sheet 2

50 Photo 5: View of suspect mold behind wallpaper in a bathroom of Building 68. Photo 6: View of fluorescent light fixture in stairwell. No PCB containing ballasts were observed. Light tubes are mercury containing. Photographs Project: Repair/Renovate VOQ F.68 Langley Air Force Base Hampton, Virginia Number: Project # Photo Sheet 3