ASBESTOS & HAZARDOUS MATERIALS INSPECTION

Transcription

1 ASBESTOS & HAZARDOUS MATERIALS INSPECTION of Thaddeus Stevens Elementary School 822 Crucible Street Pittsburgh, Pennsylvania Prepared for Facilities Division Pittsburgh Public Schools 1305 Muriel Street Prepared by AGX, INC. 207 PINE CREEK ROAD WEXFORD, PA June 2012 AGX JOB NO Prepared By: Stacey Natale, Inspector Reviewed By: Daniel L. Winkle, Project Manager

2 TABLE OF CONTENTS EXECUTIVE SUMMARY Introduction Asbestos-Containing Materials (ACM) Hazardous Materials Inspection Fluorescent Lamps Polychlorinated Biphenyls (PCBs) Chlorofluorocarbons (CFCs) Batteries Mercury Storage Tanks Miscellaneous Materials Lead-Based Paint (LBP) Summary...12 Page TABLES Table 1 - Cost Estimate Asbestos-Containing Materials Table 2 - Cost Estimate Hazardous Materials APPENDICES Appendix A - Inspection Reports Appendix B - Photographs Appendix C - Asbestos Laboratory Bulk Sample Results/ Chain of Custody Forms Appendix D - Lead-Based Paint Chip Laboratory Sample Results/ Chain of Custody Forms Appendix E - Inspector Accreditations

3 EXECUTIVE SUMMARY Pittsburgh Public Schools retained AGX, Inc., (AGX) to conduct an asbestos and hazardous materials inspection of Thaddeus Stevens Elementary School, located at 822 Crucible Street in Pittsburgh, Pennsylvania The site consists of the main school building. The main school building is a brick and concrete five-story building (including the basement) comprising approximately 59,000 square feet. The purpose of the asbestos and hazardous materials inspection was to identify, locate, and quantify asbestos and other potential hazardous materials, such as lead-based paint (LBP), polychlorinated biphenyls (PCB), mercury-containing fluorescent lamps, thermostats, thermometers and switches; chlorofluorocarbons (CFCs), NiCad and lead-acid batteries, and various other stored chemicals. Exterior areas, adjacent to the building, were also inspected for the presence of Underground Storage Tanks (USTs). The asbestos and hazardous materials inspection consisted of an on-site inspection, sampling of suspect asbestos-containing materials (ACM) and lead based paint (LBP), and quantification of all observed potentially hazardous materials. AGX, Inc. identified the following material as ACM in the school: Friable ACM Pipe and Fitting Insulation Fitting Insulation on Fiberglass Insulated Lines Non-Friable ACM Floor Tile Door Caulking The following materials have been presumed to be ACM. These materials were not sampled due to inaccessibility to materials, or because sampling would have damaged the function of the component associated with the material: Internal and External Boiler Components Blackboard/Tack board Fire Door in Boiler Room B1 The estimated cost to remove and dispose of the above-referenced ACM is $147, See Table 1 for line item cost estimates. AGX, Inc. identified the following hazardous materials throughout the building: AGX, Inc. 1

4 Mercury-containing fluorescent lamps, thermostats and switches; Refrigerator/freezers, water fountains, and air conditioning units with the potential of containing CFCs; Chemicals such as stored oils, grease and gasoline, paints, floor treatment products, cleaning products, degreasers, printing chemical, and pool chemicals. The estimated cost to remove and dispose the above-mentioned hazardous materials is $29, See Table 2 for line item cost estimates. In addition, lead-based paint, as defined by the Occupational Safety and Health Administration (OSHA) was documented as present throughout each of the buildings. Remediation of lead based paint is not required prior to building renovation or demolition. Table 1 Cost Estimate Asbestos-Containing Materials Thaddeus Stevens Elementary School ACM LOCATION APPROXIMATE QUANTITY COST ESTIMATE Boiler Units Boilers 1 and 2 Boiler Room B-1 2 Units $30,494 Floor Tile Ground Floor Cafeteria 4,400 Sq. Ft. $18,144 Blackboard / Tack board Classrooms Throughout Building 3,875 Sq Ft. $51,840 Pipe and Fitting Insulation Mechanical Rooms, Classrooms, Bathroom Pipe Chases 2,500 Ft. $45,360 Throughout Building Fire Door Boiler Room B-1 2 doors Sq Ft. $432 Exterior Door Caulking Exterior Building 12 Doors 120 Sq Ft. $1,296 TOTAL $147,566 Note: Cost estimates reflect 2012 unit pricing averages from select Pittsburgh-based asbestos abatement firms. Cost may vary based on the magnitude of material removed, and whether competitive bidding is used. AGX, Inc. 2

5 Table 2 Cost Estimate Hazardous Materials Thaddeus Stevens Elementary School ITEM CFC Equipment Potential PCB Oil Containing Equipment LOCATION Room 6, Lunch Room, New Class Room 14 Basement Floor - Boiler Room APPROXIMATE QUANTITY (4) Fridge/Freezers (1) Pop Machine (3) Freezer (1) Walk-in Freezer Emergency Generator, Air Compressor, Transformers (3) DISPOSAL COST ESTIMATE $1,365 $2,205 Fluorescent Lamps Throughout building 1,180 Bulbs $1,312 High Intensity Lamps Outside building 15 Lamps $27.75 Other Potential Mercury Containing Items Throughout building Boiler Switches (5) Thermometers (55) Exit Signs (22) Fire Alarms (20) $2,040 PCB Light Ballasts Throughout building 886 Ballasts $1,262 Lead-Based Paint Systems Throughout building Not Estimated NA 2 Solvents, Cleaners, Paints, and Other Misc. Chemicals Throughout building and Maintenance Shed See Section 3.7 $4,745 1 Underground Storage Tank Exterior Building 1 tank 8,000 gal $16,211 TOTAL $29,168 Footnotes 1. Household type air conditioners, refrigerators, freezers, and vending machines were not included. 2. Miscellaneous office and cleaning supplies such as printer toner, ink cartages, spray cleaners, and art supplies were not included. 3. Remediation of lead paint is not generally required for building renovation or demolition, therefore cost estimates are not provided. Notes Cost estimates reflect unit pricing averages gained from select Pittsburgh based hazardous remediation firms. NA = Not Applicable AGX, Inc. 3

6 1.0 Introduction AGX, Inc., (AGX) to conduct an asbestos and hazardous materials inspection of Thaddeus Stevens Elementary School, located at 822 Crucible Street in Pittsburgh, Pennsylvania 15220, to identify, locate, and quantify asbestos-containing materials (ACM) and other hazardous materials, such as mercury-containing fluorescent lamps (including fluorescent, metal halide, high-pressure sodium, and mercury-vapor), thermostats, and other mercury containing items; polychlorinated biphenyls (PCB)-containing ballasts and oil containing equipment; chlorofluorocarbon (CFC)-containing equipment, such as water coolers and building specific air conditioning units; nickel cadmium (NiCad) and lead-acid batteries, commonly found in exit signs and emergency lighting units; storage tanks; stored solvents, paints, and other miscellaneous chemicals; and lead-based paint (LBP) systems. The inspection was conducted May 2012 by Mr. David Grumboski, certified PA Management Planner (#019944), Ms. Stacey Natale, PA certified Asbestos Building Inspector (#039048). As part of this assessment, bulk samples were collected from accessible suspect asbestos-containing materials and paint systems for laboratory analysis. During the writing of this report a review was made of previous credible sampling data on file at the Pittsburgh Board of Education Facilities Office and at AGX. The previous sampling data has been incorporated into this report. 2.0 Asbestos-Containing Materials (ACM) AGX conducted the inspection to identify, locate, and quantify ACM throughout the building. AGX performed a visual inspection of all accessible areas within the building. An appropriate number of samples were collected of any suspect materials that were observed and not previously identified. Suspect ACM was classified into homogeneous materials, and bulk samples were collected for each homogeneous material based on the random sampling protocol, as described by the United States Environmental Protection Agency (EPA), under the Asbestos Hazard Emergency Response Act (AHERA), or as described. All bulk samples were sealed in plastic bags, given unique sample numbers, and logged with an appropriate chain of custody. The samples were analyzed by AGX, Inc., which is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP), using Polarized Light Microscopy (PLM) with dispersion staining, as specified by the EPA method 600/R-93/116. AGX identified a total of forty two (42) homogeneous materials and collected thirty four (34) bulk samples of suspect ACM throughout the building. AGX, Inc. identified the following material as ACM in the school: Friable ACM Pipe and Fitting Insulation AGX, Inc. 4

7 Fitting Insulation on Fiberglass Insulated Lines Non-Friable ACM Floor Tile Door Caulking The following materials have been presumed to be ACM. These materials were not sampled due to inaccessibility to materials, or because sampling would have damaged the function of the component associated with the material: Internal and External Boiler Components Blackboard/Tack board Fire Door in Boiler Room B1 The estimated cost to remove and dispose of the above-referenced ACM is $147, See Table 1 for line item cost estimates. Table 1 Cost Estimate Asbestos-Containing Materials Thaddeus Stevens Elementary School ACM LOCATION APPROXIMATE QUANTITY COST ESTIMATE Boiler Units Boilers 1 and 2 Boiler Room B-1 2 Units $30,494 Floor Tile Ground Floor Cafeteria 4,400 Sq. Ft. $18,144 Blackboard / Tack board Classrooms Throughout Building 3,875 Sq Ft. $51,840 Pipe and Fitting Insulation Mechanical Rooms, Classrooms, Bathroom Pipe Chases 2,500 Ft. $45,360 Throughout Building Fire Door Boiler Room B-1 2 doors Sq Ft. $432 Exterior Door Caulking Exterior Building 12 Doors 120 Sq Ft. $1,296 TOTAL $147,566 Note: Cost estimates reflect unit pricing averages from select Pittsburgh-based asbestos abatement firms. Cost may vary based on the magnitude of material removed and on bidding used. The building summary form, list of homogenous areas, bulk sampling forms, sample point location maps, and homogeneous area maps are located in Appendix A Inspection Reports. Photographs of asbestos-containing materials are located in Appendix B Photographs. Laboratory results are located in Appendix C Asbestos Laboratory Bulk Sample Results. Inspectors certifications AGX, Inc. 5

8 are located in Appendix E Accreditations. 3.0 Hazardous Materials Inspection 3.1 Fluorescent Lamps AGX identified approximately one thousand one hundred and eighty (1,180) mercury-containing fluorescent tubes throughout the building. In addition, AGX identified fifteen (15) Metal Halide Lamps. No sodium lamps were noted. The term lamp refers to mercury-containing lamps, fluorescent tubes or bulbs, metal halide, high-pressure sodium, and mercury-vapor lamps. Disposal costs average between 25 and 50 cents per four-foot tube and 75 cents to one (1) dollar per eight-foot tube, plus the cost of transportation and any additional landfill fees. An alternative to disposal is recycling. The average cost to recycle fluorescent tubes is around 10 cents per foot, or about 40 cents per four-foot tube (80 cents per eight-foot tube). The average cost to recycle high intensity discharge (HID) lamps is approximately $2.50 per lamp. Fluorescent tubes were added to the EPA list of universal wastes in Universal wastes are hazardous wastes, with less stringent requirements for storing, transporting, and collection. Under federal law, these lamps are considered hazardous waste if they fail the Toxic Characteristic Leaching Procedure (TCLP) test. Under this test, the waste can contain no more than 0.2 milligrams per liter (mg/l) of mercury. The majority of spent fluorescent and high-intensity discharge (HID) lamps, however, fail the TCLP test. Therefore, it should be assumed that all used lamps are hazardous, unless proven otherwise. Current production fluorescent tubes will fail the TCLP test for mercury, while older (pre-1988 production) tubes will fail the TCLP test for cadmium. HID lamps will fail the TCLP test for both mercury and lead. The Universal Waste Rule did give states the authority to add products to their individual waste rules. According to the Pennsylvania Department of Environmental Protection regulation 25 PA Code 260a., all fluorescent lamps, if hazardous, must be managed as either a universal waste or manifested as hazardous waste. Therefore, it is recommended that all mercury-containing lamps be handled, stored, and transported in such a manner that they are protected from damage and not broken. If impacted by building renovation/demolition activities, all mercury-containing lamps should be removed from each fixture. Mercury-containing lamps should be disposed or recycled in accordance with USEPA and the Commonwealth of Pennsylvania hazardous waste regulations and guidelines. Separate estimated costs to remove/dispose or remove/recycle the lamps are found in Table 2 Cost Estimate, Hazardous Materials. 3.2 Polychlorinated Biphenyls (PCBs) PCBs can be found in a number of different electrical and hydraulic pieces of equipment. Such equipment typically includes oil-filled power transformers, capacitors, and electric ballasts and pieces of equipments that use hydraulic oil. AGX identified one (1) air compressor, one (1) emergency generator, three (3) transformers, and eight hundred and eighty six (886) light ballasts AGX, Inc. 6

9 that may contain such oil. Select light fixtures were dismantled during the inspection to verify the ballasts labels. Light fixtures inspected housed newer Sylvania Quicktronic and Advance models of ballast, and were labeled as No PCBs. All ballasts manufactured after July 1, 1978, that do not contain PCBs, are required to be clearly marked No PCBs. There are two primary federal regulations that govern the disposal of PCB ballasts: Toxic Substance Control Act (TSCA) 40 CFR Part 761 Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) or Superfund Act TSCA regulates leaking ballasts and requires the PCB liquids to be drained and incinerated in a TSCA-approved disposal facility or in a chemical waste landfill. Under the Superfund laws, PCBs are specifically listed as a hazardous substance. Sixteen (16) ballasts collectively contain approximately one pound of PCBs, which meets the requirements for a reportable quantity of waste. Therefore, based on TSCA and CERCLA regulations, PCB-containing ballasts, in excess of 16, must be handled and removed as PCB-containing waste for proper disposal at an EPA-approved chemical waste landfill or high temperature incinerator prior to demolition/renovation of the building. An approved company may also recycle the ballasts. A separate cost estimate is given in Table 2 Cost Estimate, Hazardous Materials. The average cost for high-temperature incineration is $1.50 per pound, which is approximately $5.25 per ballast. The average cost for recycling is $1.00 per pound or approximately $3.50 per ballast. Disposal at a chemical or hazardous waste landfill is based on disposal of a 55-gallon drum of ballasts. The average cost is $ per 55-gallon drum, which is approximately $0.50 per ballast. The costs do not include packaging, transportation, or profile fees. High-temperature incineration or recycling eliminates future CERCLA liabilities, while liability will continue for landfill disposal. The estimated cost to remove and dispose of the assumed PCB-containing electric ballasts are found in Table 2 Cost Estimate, Hazardous Materials. The estimated cost to remove the assumed PCB-containing oil from other PCB-containing equipment is also found in Table Chlorofluorocarbons (CFCs) CFCs are primarily used as a refrigerant and can be found in heating, ventilation, and air conditioning (HVAC) units, refrigerators, freezers, vending machines, and water coolers/fountains. If impacted by building renovation/demolition activities, these units should be properly purged prior to disposal of the units. The CFCs must be handled and purged by properly licensed contractors and/or personnel, abiding by all Federal, State, and local regulations. AGX identified one (1) walkin refrigerator/freezer in kitchen, and miscellaneous freezers and refrigerators. This equipment may contain CFCs. Window mount air conditioning units, household style refrigerators and freezers, and vending machines, were not included, as they are not part of the building mechanical system and can be easily transported to another location without releasing any CFCs into the atmosphere. The release of ozone-depleting substances is restricted under the Clean Air Act. All CFCs are AGX, Inc. 7

10 required to be purged from the equipment prior to the commencement of demolition/renovation activities. Properly licensed personnel and contractors must be used to handle and purge the CFCs, abiding by all Federal, State, and local regulations. Qualified Pittsburgh Public Schools maintenance personnel should be able to purge and transport the CFC-containing equipment. The cost of handling and purging of the CFC units averages approximately $60.00 per unit. The estimated cost to handle and purge the CFC-containing units is found in Table 2 Cost Estimate, Hazardous Materials. 3.4 Batteries Nickel-cadmium (NiCAD) and lead-acid batteries can be typically found in exit signs and emergency lighting units. Exit signs and emergency lighting units that are hard wired into the building electrical system were not included counted in this assessment. Kimball identified two (2) lead-acid batteries associated with the emergency generator and snow plow tractor. No exit signs or emergency lights which contain batteries were identified in the school. All batteries should be disposed or recycled in accordance with USEPA and the Commonwealth of Pennsylvania hazardous waste regulations and guidelines. The estimated cost to remove and dispose or recycle the battery found in Table 2 Cost Estimate, Hazardous Materials. 3.5 Mercury Mercury may be present inside thermostats, thermometers, and switches. AGX observed one five (5) mercury switches, fifty five (55) thermometers/thermostats, twenty two (22) Exit signs, and twenty (20) fire alarms. Thermometers, mercury switches and, if present, thermostats should be disposed or recycled in accordance with USEPA and the Commonwealth of Pennsylvania hazardous waste regulations and guidelines prior to any demolition/renovation activities. The estimated cost to remove and dispose or recycle mercury containing items is found in Table 2 Cost Estimate, Hazardous Materials. 3.6 Storage Tanks The school grounds were inspected for visual evidence of storage tanks containing fuels or other hazardous materials. Historical documentation notes one (1) 8,000 gallon storage tank on site. The tank is covered with asphalt. 3.7 Miscellaneous Materials Various solvents, paints, chemicals, equipment and other miscellaneous hazardous materials were found throughout the building. AGX, Inc. identified the following: AGX, Inc. 8

11 ITEM Motor Oil LOCATION Basement Floor - Boiler Room INDIVIDUAL QUANTITY TOTAL QUANTITY (2) 32 oz, (1) 32 oz 0.75 gal Spray Paint Ground Floor - Locker Room 5 (6) 16 oz 0.75 gal Paint Basement Floor - Pipe Tunnel & Boiler Room, Second Floor - Fan Room 213 (14) 1 gal, (1) 5 gal, (3) 1 gal, (2) 1 gal 24 gal Wolf s Head Grease Basement Floor - Boiler Room (20) 14 oz 2.19 gal Degreaser Ground Floor - Locker Room 5 (15) 16 oz, (7) 16 oz 2.75 gal WD-40 All Purpose Cleaner, G-Force Basement Floor - Boiler Room Room 12-A, Second Floor - Fan Rooms 213 & 212A, Third Floor A, Second Floor - Art Activity Room 201 (4) 11 oz, (1) 11 oz 0.43 gal (4) 16 oz, (1) 14 oz, (20) 14 oz, (3) 19 oz, (4) 19 oz, (4) 19 oz, (2) 17 oz, (3) 16 oz 5.07 gal Floor Cleaner Ground Floor - Locker Room 5 (3) 5 gal 15 gal Pink Concentrate Ground Floor - Room 5-A (1) 55 gal 55 gal 3M Neutral Cleaner Base Cleaners (R,S,T,U,V,W,X, Y) Speedball Cleaner Room 12-A, First Floor - Room 115-A, Third Floor A Third Floor A Third Floor - Fan Room 313 (22) 10 oz, (4) 10 oz, (4) 10 oz, (4) 10 oz 2.66 gal (18) 2.2 gal, (1) 2.2 gal 41.8 gal (5) 16 oz, (1) 16 oz 0.75 gal SCRUB Wipes Ground Floor - Locker Room 5 (1) 35 wipes Glass Cleaner Ground Floor - Locker Room 5 (2) 2.5 gal 5 gal Dust Mop Treatment Second Floor - Fan Room 213, Third Floor - Fan Room 313 (1) 1 gal, (3) 1 gal, (1) 1 gal Gum Remover Ground Floor - Locker Room 5 (18) 6 oz 0.84 gal Spray and Buff Ground Floor - Locker Room 5 (2) 1 gal 2 gal Rebound II Ground Floor - Locker Room 5 (18) 1 gal 18 gal Bleach Third Floor A (1) 1 gal 1 gal Metal Polish Ground Floor - Locker Room 5 (1) 12 oz gal Lime Away Ground Floor - Locker Room 5 (1) 1 gal 1 gal Floor Adhesive Basement Floor - Boiler Room (3) 5 gal 15 gal Boiler Water Treatment Basement Floor - Boiler Room (3) 5 gal, (1) 35 gal 50 gal Non-Alcohol Foaming Hand Sanitizer ITEM Foamy Hand Soap Second Floor - Fan Room 213 LOCATION Second Floor - Art Activity Room gal (3) 42.2 oz, (1) 42.2 oz 1.32 gal INDIVIDUAL QUANTITY TOTAL QUANTITY (4) 4.5 oz, (2) 4.5 oz 0.21 gal Gentle Grit Soap Ground Floor - Locker Room 5 (2) Boxes AGX, Inc. 9

12 Rubbing Alcohol Acrylic Paint Glue, Weldbond Second Floor - Art Activity Room 201 Second Floor - Art Activity Room 201 Second Floor - Art Activity Room 201 (1) 14 oz 0.11 gal (20) 16 oz, (6) 1 gal 8.5 gal (2) 12 oz, (1) 17 oz, (1) 1 gal 1.32 gal Storage and filing cabinets within the classrooms were not inspected for potential hazardous materials. The estimated cost to remove and dispose of the identified chemicals is found in the following table. AGX, Inc. 10

13 Table 2 Cost Estimate Hazardous Materials Thaddeus Stevens Elementary School ITEM CFC Equipment Potential PCB Oil Containing Equipment LOCATION Room 6, Lunch Room, New Class Room 14 Basement Floor - Boiler Room APPROXIMATE QUANTITY (4) Fridge/Freezers (1) Pop Machine (3) Freezer (1) Walk-in Freezer Emergency Generator, Air Compressor, Transformers (3) DISPOSAL COST ESTIMATE $1,365 $2,205 Fluorescent Lamps Throughout building 1,180 Bulbs $1,312 High Intensity Lamps Outside building 15 Lamps $27.75 Other Potential Mercury Containing Items Throughout building Boiler Switches (5) Thermometers (55) Exit Signs (22) Fire Alarms (20) $2,040 PCB Light Ballasts Throughout building 886 Ballasts $1,262 Lead-Based Paint Systems Throughout building Not Estimated NA 2 Solvents, Cleaners, Paints, and Other Misc. Chemicals Throughout building and Maintenance Shed See Section 3.7 $4,745 1 Underground Storage Tank Exterior Building 1 tank 8,000 gal $16,211 Footnotes: TOTAL $29, Household type air conditioners, refrigerators, freezers, and vending machines were not included. 2. Miscellaneous office and cleaning supplies such as printer toner, ink cartages, spray cleaners, and art supplies were not included. 3. Remediation of lead paint is not generally required for building renovation or demolition, therefore cost estimates are not provided. Notes Cost estimates reflect unit pricing averages gained from select Pittsburgh based hazardous remediation firms. NA = Not Applicable 4.0 Lead-Based Paint (LBP) Seven (7) paint systems sampled through-out both buildings were found to contain between % and 5.96% lead by weight based on laboratory analysis. All paint samples showed concentrations of total lead greater than the laboratory limit of detection, and are considered regulated under the Occupational Safety and Health Administration (OSHA). The OSHA Lead in Construction Standard (29 CFR ) requires all contractors performing AGX, Inc. 11

14 demolition or renovation activities to notify and provide training for their employees involved in the alteration and/or repair of lead-containing building components. The contractor is also required to conduct an initial Employee Exposure Assessment. Unless Child Occupied, there are no requirements for removing lead based paint during renovation or demolition of buildings however means of minimizing the migration of lead dust must be implemented. In addition, waste stream sampling of renovation/demolition materials is required under the Resource Conservation and Recovery Act (RCRA). In addition the above mentioned OSHA requirements, the EPA s RRP (Renovation, Repair and Painting) Rule will apply when the renovated facility will be Child Occupied - used by children less than 6 years of age. This means that all contractors who disturb lead based paint; over six square feet per room, must be RRP certified contractors and must employ proper work techniques when disturbing the lead containing surfaces. The samples were analyzed by RJ Lee Group, 350 Hochberg Road, Monroeville, Pennsylvania, using ASTM D A Atomic Absorption Spectrophotometry (AAS). RJ Lee is accredited by the American industrial Hygiene Association (AIHI) for metals analysis. The paint chip sampling form and the laboratory analysis are found in Appendix D Lead-Based Paint Sample Results. 5.0 Summary AGX performed an inspection for asbestos and hazardous materials throughout all accessible areas of Thaddeus Stevens Elementary School, located at 822 Crucible Street in Pittsburgh, Pennsylvania Asbestos, lead paint and hazardous materials were identified in the building and included mercury-containing light tubes, high intensity lamps and switches, potential PCB-containing equipment, lead-acid batteries, potential CFC containing equipment, and miscellaneous stored chemicals. Based on the results and findings of the building inspection, AGX recommends the following: ACM that will be impacted by future renovation/demolition activities should be removed and disposed of as ACM waste according to all applicable asbestos regulations. The Pennsylvania Department of Labor and Industry and the Allegheny County Health Department (ACHD) requires that asbestos abatement be completed by certified contractors. Assumed materials should be properly characterized for asbestos content prior to disturbance. Painted substrates in the school were found to contain lead. The EPA s RRP (Renovation, Repair and Painting) Rule will apply when the renovated facility will be Child Occupied - used by children less than 6 years of age. This means that all contractors who disturb lead based paint; over six square feet per room, must be RRP certified contractors and must employ proper work techniques when disturbing the lead containing surfaces. Painted substrates in the school were found to contain lead. In accordance with OSHA Standard 29 CFR , contractors are required to notify and train all employees involved in the construction, alteration, and/or repair of lead-containing building AGX, Inc. 12

15 components, of the presence of lead. The Contractors are also required to conduct an initial Employee Exposure Assessment in accordance with 29 CFR (d) (1) (i). Prior to cutting, sanding, or welding painted structural steel for renovation or demolition, the paint should be properly abated from each structure. The OSHA Lead in Construction Standard (29 CFR ) requires all contractors performing demolition or renovation activities to notify and provide training for their employees involved in the alteration and/or repair of lead-containing building components. The contractor is also required to conduct an initial Employee Exposure Assessment. Unless Child Occupied, there are no requirements for removing lead based paint during renovation or demolition of buildings however means of minimizing the migration of lead dust must be implemented. In addition, waste stream sampling of renovation/demolition materials is required under the Resource Conservation and Recovery Act (RCRA). All hazardous materials/equipment impacted by renovation or demolition activities should be removed by properly trained contractors and/or personnel, and the materials disposed of in accordance with USEPA and Commonwealth of Pennsylvania hazardous waste regulations and guidelines. Photographs of hazardous materials and types of equipment found are located in Appendix B Photographs. AGX, Inc. 13

16 AGX, INC. BUILDING SUMMARY FORM BUILDING IDENTIFICATION OWNER/CLIENT: Pittsburgh Public Schools BLDG. NAME: Thaddeus Stevens Elementary School ADDRESS 822 Crucible Street Pittsburgh, PA PHONE: PHYSICAL DESCRIPTION MAIN BLDG. BUILDING USE: School # OF FLOORS: 5 SQ. FOOTAGE: 59,000 BUILDING EXTERIOR: Brick ATTIC: No BASEMENT: Yes CEILING HEIGHT: 12 Feet FRAME: Steel FLOOR: TILE: CARPET: CONCRETE: WOOD: CERAMIC: SOIL: LINOLEUM: METAL: CEILING: PLASTER: CONCRETE: FIBERGLASS: SUSPENDED: DRYWALL: WOOD: ASBESTOS MATERIALS RECORDS MAIN BLDG. (SURFACING) MATERIAL LOCATION SAMPLE # SAMPLE # SAMPLE # QUANTITY %ASBESTOS Internal and External Boiler Room Boiler B-1 N/A N/A N/A 2 Units Assumed Components ASBESTOS MATERIALS RECORDS MAIN BLDG. (THERMAL) MATERIAL LOCATION SAMPLE # SAMPLE # SAMPLE # QUANTITY %ASBESTOS Pipe and Throughout Fitting N/A 2,500 ft Historical Data Building Insulation Internal and External Boiler Components Boiler Room B-1 N/A N/A N/A 2 Units Assumed AGX, Inc.

17 AGX, INC. BUILDING SUMMARY FORM ASBESTOS MATERIALS RECORDS MAIN BLDG. (MISCELLANEOUS) MATERIAL LOCATION SAMPLE # SAMPLE # SAMPLE # QUANTITY %ASBESTOS Associated with 12 Brown with Cafeteria SE-04 SE-05 SE-06 2,200 sq ft Historical Data Black Floor Tile Associated with 12 Tan with Brown Floor Tile Fire Doors Blackboard/ Tack Board Exterior Door Caulking Cafeteria SE-07 SE-08 SE-09 2,200 sq ft Historical Data Boiler Room B-1 N/A N/A N/A 2 Doors 150 sq ft Assumed All Classrooms N/A N/A N/A 3,875 sq ft Assumed Exterior Doors ST-10 ST-11 ST sq ft 10-12% SUMMARY PREPARED BY: PEER REVIEWED BY: AGX, Inc.

18 SUSPECT ASBESTOS BULK SAMPLING FORM BUILDING NAME: Thaddeus Stevens Elementary School PAGE 1 OF 2 ADDRESS: 822 Crucible Street, Pittsburgh, PA SAMPLED BY: David Grumboski & Steve Corwin DATE: May 14 & 15, 2012 SAMPLE NUMBER MATERIAL HM # LOCATION % ASBESTOS Main Building ST-01 Interior Window Glazing 25 Room 314 None Detected ST-02 Interior Window Glazing 25 Room 203 None Detected ST-03 Interior Window Glazing 25 Room 103 None Detected ST-04 Interior Window Caulking 26 Room 314 None Detected ST-05 Interior Window Caulking 26 Room 203 None Detected ST-06 Interior Window Caulking 26 Room 103 None Detected ST-13 2 X4 Smooth Ceiling Tile 06 Room 207 None Detected ST-14 2 X4 Smooth Ceiling Tile 06 Room 110 None Detected ST-15 2 X4 Smooth Ceiling Tile 06 Room 09 None Detected ST-16 Transite Sink 30 Room 203 ST White with Gray Floor Tile and 10 Room 101A None Detected ST White with Gray Floor Tile and 10 Room 101A None Detected ST White with Gray Floor Tile and 10 Room 102A None Detected ST Blue Floor Tile and 17 Room 12 None Detected ST Blue Floor Tile and 17 Room 12 None Detected ST Blue Floor Tile and 17 Room 12 None Detected ST-23 ST-24 ST White with Blue Floor Tile and 20 Room 11 None Detected 12 White with Blue Floor Tile and 20 Room 11 None Detected 12 White with Blue Floor Tile and 20 Room 11 None Detected Exterior Main Building ST-07 Exterior Window Glazing 32 Room 314 None Detected ST-08 Exterior Window Glazing 32 Room 203 None Detected ST-09 Exterior Window Glazing 32 Room 103 None Detected *If first or any sample in a supplied group is positive, then all samples in that group are considered positive ** Insufficient mastic provided for analysis. AGX, Inc. 2

19 SUSPECT ASBESTOS BULK SAMPLING FORM BUILDING NAME: Thaddeus Stevens Elementary School PAGE 2 OF 2 ADDRESS: 822 Crucible Street, Pittsburgh, PA SAMPLED BY: David Grumboski & Steve Corwin DATE: May 14 & 15, 2012 SAMPLE NUMBER MATERIAL HM # LOCATION % ASBESTOS ST-10 Exterior Door Caulking 42 Room %* ST-11 Exterior Door Caulking 42 Corridor 1A None Detected* ST-12 Exterior Door Caulking 42 Corridor 1D None Detected* ST-26 Exterior Window Caulking 31 Room 103 None Detected ST-27 Exterior Window Caulking 31 Room 11 None Detected ST-28 Exterior Window Caulking 31 Room 102 None Detected TSR-01 Roofing Material 33 Main Roof None Detected TSR-02 Roof Flashing 33 Main Roof None Detected TSR-03 Roofing Material 33 West Wing Roof None Detected TSR-04 Roof Flashing 34 West Wing Roof None Detected TSR-05 Roofing Material 34 East Wing Roof None Detected TSR-06 Roof Flashing 34 East Wing Roof None Detected *If first or any sample in a supplied group is positive, then all samples in that group are considered positive ** Insufficient mastic provided for analysis. AGX, Inc. 2

20 LIST OF HOMOGENEOUS MATERIALS BUILDING NAME: Thaddeus Stevens Elementary School LOCATION: 822 Crucible Street Pittsburgh, PA PAGE 1 OF 2 HM # MATERIAL CONTAIN ASBESTOS? YES NO ASSUMED Main Building 01 Smooth Plaster X 02 Textured Plaster X 03 1 X 2 Ceiling Tile X 04 1 X 1 Ceiling Tile X 05 2 X 4 Ceiling Tile X 06 2 X 4 Smooth Ceiling Tile X 07 2 X2 Textured Ceiling Tile X 08 Stair Tread and X 09 Cove Base and X White with Gray Floor Tile and X Light Blue Floor Tile and X Dark Blue Floor Tile and X Peach Floor Tile and X Tan Speckled Floor Tile and X Brown Speckled Floor Tile and X White with Gray Floor Tile and X Blue Floor Tile and X Yellow Floor Tile and X Red Floor Tile and X White with Blue Floor Tile and X Gray with Dark Streaks Floor Tile and X Blue with Light Blue Floor Tile and X Tan with Cream Floor Tile and X 24 Brown Linoleum and Backing Under Carpet X 25 Interior Window Glazing X 26 Interior Window Caulking X 27 Caulking around Auditorium Lights X APPROXIMATE QUANTITY AGX, Inc.

21 LIST OF HOMOGENEOUS MATERIALS BUILDING NAME: Thaddeus Stevens Elementary School LOCATION: 822 Crucible Street Pittsburgh, PA PAGE 2 OF 2 HM # MATERIAL 28 Gymnasium Divider X 29 Mortar X 30 Cementitious Sink X CONTAIN ASBESTOS? YES NO ASSUMED Exterior Main Building 31 Exterior Window Caulking X 32 Exterior Window Glazing X 33 Roofing Material X 34 Roof Flashing X Main Buildings APPROXIMATE QUANTITY 35 Blackboard X 2,275 Sq. Ft 36 Tack Board X 1,600 Sq. Ft Brown with Black Floor Tile Associated X X 2,200 Sq. Ft Tan with Brown Floor Tile Associated X 2,200 Sq. Ft 39 Pipe and Fitting Insulation X 2,500 Ft 40 Interior and Exterior Boiler Material X 2 Units 41 Fire Doors X 2 Doors 150 Sq. Ft Exterior Main Building 42 Exterior Door Caulking X 12 Doors 120 Sq. Ft AGX, Inc.