OLM Environmental, LLC PHONE: (919) LOCKWOOD FOLLY LANE; RALEIGH, NC CELLPHONE: (919)

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1 OLM Environmental, LLC PHONE: (919) LOCKWOOD FOLLY LANE; RALEIGH, NC CELLPHONE: (919) July 31, 2016 Zapolski Real Estate, LLC 501 Washington Street Durham, North Carolina Attention: Subject: Alixander Zapolski Property Manager Final Ambient Air Sampling Report CVS/Pharmacy Plaza Franklin Street Office Building 6 th Floor Main Corridor Near Suite 600 O&M Cleaning for Plumber Access 137 East Franklin Street Chapel Hill, North Carolina OLME Project No.: OLME Dear Mrs. Zapolski: OLM Environmental, LLC (OLME) is pleased to present this report summarizing the results of the ambient air sampling obtained during abatement activities at the above-mentioned location. The cleanup included the removal, disposal and replacement of water-damaged suspended ceiling panels, over-sprayed asbestos-containing fireproofing from insulated ductwork and fiberglass drain pipe insulation coated with asbestos-containing black mastic along seams adequate to provide access. As per the Operations and Maintenance (O&M) plan prepared for the property, cleaning was performed adequate to complete these repairs. Because of the amount of asbestos-containing materials (ACM) affected by the work, Zapolski Real Estate, LLC (Zapolski) contracted Demolition and Asbestos Removal, Inc. (DARI) located in Raleigh, North Carolina to perform the work. OLME was also contracted to inspect the work and obtain ambient air sampling to determine the air quality resulting from the work activities. This report summarizes our work observations and the ambient air monitoring result obtained. DARI s crew was onsite July 27, 2016 performing the desired scope of work. OLME representative, Oral McGirt, was also onsite during the work and met with DARI project supervisor, Alejandro H. Arreal, and Zapolski property manager, Dan Ivey to coordinate the work and to establish cleaning procedures to follow. DARI s abatement crew consisted of one licensed supervisor and three workers. Each maintained an asbestos accreditation demonstrating that they were licensed by North Carolina s Health Hazard Control Unit (HHCU) to perform asbestos-related abatement activities. Details of DARI s

2 Final Ambient Air Sampling Report July 31, 2016 CVS/Pharmacy Plaza Page 2 Franklin Street Office Building 6th Floor Main Corridor Near Suite 600 O&M Cleaning for Plumber Access 137 East Franklin Street Chapel Hill, North Carolina OLME Project No.: OLME abatement crew s accreditation information is detailed in the attached table entitled, Worker Verification Form. Prior to performing any activity that would further disturb or expose the identified asbestos-containing fireproofing exposed by the damages, DARI s crew was required to establish a regulated work area prior to performing the work. Workers installed 6-mil polyethylene sheeting (poly) barriers over doorways and openings to restrict access during the work. 6-mil polyethylene sheeting was placed on the floor to catch any fallen debris. Wet methods and HEPA-equipped vacuum(s) were also required, as per the O&M plan, to control airborne particle during the work. Ambient air sampling was performed to determine the level of airborne particulate generated during the work and to gauge the thoroughness of the cleaning. Sampling was performed inside and outside the regulated work area to gauge the level of airborne particulate generated by the work. Sampling and analyzes of the air sampling obtained were performed by Mr. McGirt, who maintains the appropriate State of North Carolina accreditation for the type of services performed. Details of Mr. McGirt s accreditation information are attached table is entitled, OLME Project Personnel Summary Table. Project Setup and Preparations: Prior to disturbing the identified ACM, DARI s crew 6-mil polyethylene (poly) drop cloths was installed on the floor beneath the water-damaged section of ceiling in order to catch any falling debris during the work. Pre-cleaning of the corridor was also performed to remove visible ACM prior to the start of the work. See the attached Photographs for views of the work preparations and abatement methods. Mr. Arreal, reported that the crew planned to thoroughly saturate the affected materials with water using a Hudson-type sprayer(s). Handtools and a HEPA-equipped vacuum were used throughout the work. He reported that loose and over-sprayed fireproofing was removed from ductwork surfaces adequate to perform the desired repairs. Asbestos-contaminated debris generated during the work was placed inside 6-mil poly waste disposal bag(s) and again be coated with water to minimize fiber release. Once adequately filled, waste was then gooseneck sealed and then placed in a second waste bag and sealed.

3 Final Ambient Air Sampling Report July 31, 2016 CVS/Pharmacy Plaza Page 3 Franklin Street Office Building 6th Floor Main Corridor Near Suite 600 O&M Cleaning for Plumber Access 137 East Franklin Street Chapel Hill, North Carolina OLME Project No.: OLME Sealed waste was properly labeled and handled truck prior to being removed from the jobsite and later transport to a State-approved landfill and disposed. approved the work. Mr. McGirt inspected the area after cleaning and Personal Protective Equipment: The following summarizes the types of personal protective equipment (PPE) worn by the workers during the work: DESCRIPTION OF WORK Work Area Preparations Regulated Removal/Cleaning Activities Waste Loadout PERSONAL PROTECTIVE EQUIPMENT Half-Face Negative Pressure Respirators Equipped With P-100 Rated HEPA Filters Disposable Suits, Gloves and Safety Glasses Half-Face Negative Pressure Respirators Equipped With P-100 Rated HEPA Filters Disposable Suits, Gloves and Safety Glasses None Air Sampling Collection and Analysis Procedures: The ambient air samples were obtained using the Asbestos Hazard Emergency Response Act (AHERA) sampling and analysis protocol. The ambient air sampling were obtained and analyzed using Phase Contrast Microscopy sampling and analysis procedures. Analysis of the ambient air sampling performed outside the work area and after cleaning were determined to be acceptable for public access, less than 0.01 fiber per cubic centimeter of air (f/cc) for each sample obtained, as per the North Carolina State regulations. Summaries of our air sampling methodology and the Phase Contrast Microscopy Air Sample Data Sheet are attached.

4 Final Ambient Air Sampling Report July 31, 2016 CVS/Pharmacy Plaza Page 4 Franklin Street Office Building 6th Floor Main Corridor Near Suite 600 O&M Cleaning for Plumber Access 137 East Franklin Street Chapel Hill, North Carolina OLME Project No.: OLME OLME appreciates the opportunity to provide these asbestos-related services. Feel free to contact us if you have any questions concerning this report. Sincerely, OLM Environmental, LLC. Oral L. McGirt Asbestos Projects Manager Attachments: Worker Verification Form OLME Project Personnel Summary Table Photographs Air Monitoring Methodology Phase Contrast Microscopy - Air Sample Data Sheet

5 WORKER VERIFICATION FORM

6 CVS/PHARMACY PLAZA FRANKLIN STREET OFFICE BUILDING 6TH FLOOR MAIN CORRIDOR NEAR SUITE 600 O&M CLEANING FOR PLUMBER ACCESS 137 EAST FRANKLIN STREET CHAPEL HILL, NORTH CAROLINA OLME PROJECT NO.: OLME CONTRACTOR: DARI RALEIGH DIVISION DATE NAME ACCREDITATION NUMBER EXPIRATION Alejandro Hernandez Arreal /27/16 Felipe Vasquez Paredes Jose Juan Corona Martin Paredes

7 OLME PROJECT PERSONNEL

8 CVS/PHARMACY PLAZA FRANKLIN STREET OFFICE BUILDING 6TH FLOOR MAIN CORRIDOR NEAR SUITE 600 O&M CLEANING FOR PLUMBER ACCESS 137 EAST FRANKLIN STREET CHAPEL HILL, NORTH CAROLINA OLME PROJECT NO.: OLME PERSONNEL NAME Air Monitoring Accreditation Number Expiration Date Inspector Accreditation Number Expiration Date Designer Accreditation Number Expiration Date SAM* Accreditation Number Expiration Date Oral L. McGirt

9 PHOTOGRAPHS

10 PHOTOGRAPHS FRANKLIN STREET OFFICE BUILDING 6TH FLOOR MAIN CORRIDOR NEAR SUITE 600 O&M CLEANING FOR PLUMBER ACCESS 137 EAST FRANKLIN STREET CHAPEL HILL, NORTH CAROLINA OLME PROJECT NO.: OLME PHOTO No. 1 View of Work Preparations Installed to Isolate the Work Performed in the Main Corridor Near Suite 600 Entrance PHOTO NO. 2 View of Insulated Ductwork After Removal of Over-Sprayed Fireproofing From Exterior Surface(s) PHOTO No. 3 View of Drain Pipeline in Which Approximately 3-4 Feet of Fiberglass Insulation Sealed With Asbestos-Containing Black Mastic was Removed in Order to Provide Access

11 AIR MONITORING METHODOLOGY

12 AIR MONITORING METHODOLOGY The final ambient air clearance sampling for this project were obtained and analyzed to determine the fiber concentration in each air samples. The samples were analyzed by Phase Contrast Microscopy using the National Institute for Occupational Safety and Health (NIOSH) 7400 Method. This method is essentially similar to the Occupational Safety and Health Administration (OSHA) Reference Method and specifies the procedure for analyzing air samples for asbestos. The 7400 Method counts all fibers that meets the counting criteria and does not distinguish between asbestos and non-asbestos fibers. To distinguish between asbestos and non-asbestos fibers would require analysis by Transmission Electron Microscopy. The concentration of airborne fibers in an air sample is controlled by several parameters, including total number of fibers counted on the filter, total number of fields counted, filter area, monitoring time and flow rate. The total number of fibers and fields counted in a sample are governed by the counting rules of the 7400 Method. The filter area is a constant and the monitoring time is a known factor controlled by the sampler. Several high flow electric pumps were utilized to obtain area monitoring. Documentation of the calibration of the pumps was performed before and after monitoring using a secondary standard (a rotometer), which in turn is calibrated every six months using a primary standard. Area samples were generally collected by pulling air at a rate of 10.0 liters per minute (lpm) through a 25-millimeter diameter mixed cellulose ester filter (pore size 0.8 micrometer). Some filter cassettes were analyzed as box blanks. One cassette from every box of fifty was analyzed without having been opened to determine the suitability of that particular box of cassettes for air monitoring. Monitoring was performed for a period of sufficient duration for the limit of qualification to be less than 0.01 f/cc for area sampling. Samples with fiber concentrations below the quantification limit were reported as below (<) the quantification limit.

13 PHASE CONTRAST MICROSCOPY AIR SAMPLE DATA SHEET

14 OLME Job No.: OLME Collection Date: 07/27/16 Project Name: CVS/Pharmacy Plaza Analysis Date: 07/27/16 Contractor: DARI - Raleigh Analyst Name: Oral L. McGirt NC Air Monitor No Franklin Street Office Building 6 th Floor Main Corridor O&M Cleanup for Plumber Access for Assessment and Planned Repairs 137 E. Franklin Street Chapel Hill, North Carolina Project Activity: O&M Work Small-Scale Asbestos Abatement and Ceiling Panel Replacement LAB ID No. Job ID. No. General Location Flow Rate (L/M) Start Time Stop Time Total Time (mins.) Volume (Liters) No. of Fibers No. of Fields Conc. DL CVS-01 6 th Floor Elevator Lobby CVS CVS-03 6 th Floor Main Corridor Near Entrance Doorway 6 th Floor Main Corridor Near Suite 600 Entrance CVS-04 Field Blank Clean CVS-05 Lab Blank Clean --- Samples were analyzed by methods as detailed in Issue 2 of Revision 3 of NIOSH s Method Oral L. McGirt Collector s Signature Oral L. McGirt Analyst s Signature Gary P. Alexander Reviewer/SAM No Note: Air Sampling Data was provided to the SAM for review and approval. L/M = liters per minute DL = Detection Limit SAM = Supervising Air Monitor