Project No. 2761 CertainTeed Corporation Wool Fiberglass Manufacturing Facility Dry Electrostatic Precipitator and

Common Outlet Exhaust Stack Emission Evaluation Test Report December 2004Prepared for: Ms. Annjanette Ciliberto CertainTeed Corporation 1220 Oak Hill Road Crestwood Industrial Park Mountaintop, Pennsylvania 18707-2199Table of Contents

Page 1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Source Information and Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.0 Test Results Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.0 Sampling and Analytical Methodologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.1 Cyclonic Flow Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.2 Volumetric Flow Rate Determination . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.3 Moisture Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.4 Gaseous Emissions Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.4.1 Oxygen and Carbon Dioxide . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.4.2 Volatile Organic Compounds . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.4.3 Sulfur Dioxide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.4.4 Nitrogen Oxides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.5 Filterable and Condensible Particulate Matter . . . . . . . . . . . . . . . . 17 4.6 Toxic Metals - Arsenic, Chromium, and Lead . . . . . . . . . . . . . . . . . . 18 4.7 Particulate Matter/Phenol/Total Organic Carbon . . . . . . . . . . . . . 19 4.8 Formaldehyde . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.9 Ammonia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.10 Methanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.0 Quality Assurance/Quality Control Procedures . . . . . . . . . . . . . . . . . . . . . 24 5.1 S-Type Pitot Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5.2 Dry Gas Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5.3 Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.4 Thermocouples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.5 Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.6 Chain-of-Custody Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.7 Calibration Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Appendix A - Field Data Appendix B - Laboratory Data Appendix C - Calculations Appendix D - Calibration DataCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

1 AirNova, Inc. 1.0 Introduction AirNova, Inc. conducted an emi ssion evaluation test program at the CertainTeed Corporation facility located in Mountaintop, Pennsylvania on December 2 and 3, 2004. Emission sampling was conducted to evaluate the Dry Electrostatic Precipit ator (Dry EP) control device and the Common Outlet Exhaust Stack in operation at this facility. The specific parameters which were determined as part of this emission test program included the following:

C Volatile Organic Compounds

C Sulfur Dioxide

C Nitrogen Oxides

C Filterable/Condensible Particulate Matter

C Toxic Metals - Arsenic, Chromium, and Lead

C Particulate Matter/Phenol /Total Organic Carbon

C Formaldehyde

C Ammonia

C Methanol AirNova, Inc. was respon sible for the performance of all on-s ite sampling and for the submittal of this final test report presenting the test results and detailing all the sampling and analytical methods employed. A description of the sources which were evalua ted, a complete summary of the emission test results, the sampling methodologies that were ut ilized and the quality co ntrol/quality assurance procedures implemented in the performance of the test program are provided herein. Any questions pertaining to the information provided herein may be addressed to:
Mark D. Daly AirNova, Inc. 5845 Clayton Avenue Pennsauken, New Jersey 08109 Phone: (856) 486-1500 Fax: (856) 486-9896 E-mail: daly@airnova.comCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

2 AirNova, Inc. 2.0 Source Information and Description The CertainTeed Corporation facility manufactures wool fiberglass insulation products for both the commerical and residential markets. The facility op erates two (2) manufacturing lines for this purpose which are identified as the M1 and M2 Lines. Each manufacturing line consists of a glass melting furnace which is fired by natural gas. The molten glass ex its the furnace through the forehearth to the forming section where the glass fibers are sp un through the action of a series of rotary spinners. An organic thermosetting binder is added at this time for the purpose of bonding the fibers together to form a continuous mat. The resulting mat is conveyed thro ugh a natural gas fired curing oven and subsequently through a cooling section. Asphalt adhesive and backing material is then added before the mat is cut into bats, trimmed and packaged. Emissions resulting from the two glass melting furnaces (M1 and M2) are directed to a common Dry Electrostatic Precipitator (Dry ESP). The outlet of the Dry ESP is vented directly to the atmosphere through a dedicated exhaust stack. Emissions from the M1 forming section, curing oven and cooling section are directed to the M1 Wet ESP. The M1 adhesive application section is exhausted to the M2A Wet ESP for emission control. Both the M1 Wet ESP and M2A Wet ESP outlets are exhausted to atmosphere through the common stack. Emissions from zone 2 and zone 3 of the M2 forming section are directed to the M2 Wet ESP. The M2A Wet ESP is utilized for control of emissions re sulting from zone 1 of the M2 forming section, the M2 curing oven, cooling section and asphalt applicat ion section. Both the M2 Wet ESP and the M2A Wet ESP are exhausted to atmosphere through the common stack. Process flow diagrams for the M1 and M2 manufact uring lines are provided on the following page.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

3 AirNova, Inc. Figure 2-1 CertainTeed Corporation

Process Flow DiagramCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

4 AirNova, Inc. 3.0 Test Results Summary A complete summary of test results for this emi ssion evaluation test pr ogram has been provided in tabular format. The list of tables which followsindicates the order in wh ich the summary tables have been provided. CertainTeed Corporation Dry Electrostatic Precipitator and

Common Outlet Exhaust Stack Emission Evaluation Test Program

Summary of Test Results Tables

Table No. Description Page No. 3-1 Dry Electrostatic Precipitator - Particulate Matter Test Results Summary 5
3-2 Dry Electrostatic Precipitator - Toxic Metals, NOx and SO 2Test Results Summary 6
3-3 Common Outlet - Volatile Organi c Compounds and Formaldehyde Test Results Summary 7
3-4 Common Outlet - Ammonia and Methanol Test Results Summary 8 3-5 Common Outlet - Particulate Matte r, Phenol, and Total Organic Carbon Test Results Summary 9CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

5 AirNova, Inc. Table 3-1 CertainTeed Corporation Dry Electrostatic Precipitator Emission Evaluation Test Program Particulate Matter Test Results Summary Run No. 1 2 3 Average Date 12/03/04 12/03/04 12/03/04 Test Period 1128-1332 1429-1640 1744-1950 Stack Gas Characteristics Temperature (F) 519 522 523 521 Moisture Content (%) 29.8 30.1 29.1 29.7 Velocity (fps) 45.7 45.8 45.7 45.7 Flow Rate (ACFM) 30,995 31,023 30,980 30,999 Flow Rate (DSCFM) 11,600 11,527 11,665 11,597 Oxygen (%-dry) 8.82 8.94 9.21 8.99 Carbon Dioxide (%-dry) 10.15 10.26 10.07 10.16 Filterable Particulate Matter Concentration (gr/DSCF) 8.3E-3 1.4E-2 1.1E-2 1.1E-2 Emission Rate (lb/hr) 0.82 1.34 1.09 1.08 Condensible Particulate Matter Concentration (gr/DSCF) 6.0E-2 5.7E-3 2.7E-2 3.1E-2 Emission Rate (lb/hr) 6.00 0.57 2.72 3.10 Total Particulate Matter Concentration (gr/DSCF) 6.8E-2 5.7E-3 3.8E-2 3.7E-2 Emission Rate (lb/hr) 6.82 1.91 3.81 4.18

Standard Conditions 68 o F, 29.92 in. Hg.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

6 AirNova, Inc. Table 3-2 CertainTeed Corporation Dry Electrostatic Precipitator Emission Evaluation Test Program Toxic Metals, NOx and SO 2 Test Results Summary Run No. 1 2 3 Average Date 12/03/04 12/03/04 12/03/04 Test Period 1128-1332 1429-1640 1744-1950 Stack Gas Characteristics Temperature (F) 525 526 526 526 Moisture Content (%) 30.7 30.8 30.7 30.7 Velocity (fps) 45.7 45.4 45.3 45.5 Flow Rate (ACFM) 30,962 30,764 30,669 30798 Flow Rate (DSCFM) 10,874 10,772 10,812 10819 Oxygen (%-dry) 8.82 8.94 9.21 8.99 Carbon Dioxide (%-dry) 10.15 10.26 10.07 10.16 Toxic Metals Chromium (lb/hr) 1.5E-3 1.1E-3 1.6E-3 0.0014 Lead (lb/hr) 2.0E-4 2.7E-4 3.5E-4 2.7E-4 Arsenic (lb/hr) 1.8E-5 <1.6E-5 <1.6E-5 <1.8E-5 Nitrogen Oxides (as NO 2 ) Concentration (ppmV) 237 255 236 243 Emission Rate (lb/hr) 18.38 19.59 18.20 18.72 Sulfur Dioxide Concentration (ppmV) <0.1 <0.1 <0.1 <0.1 Emission Rate (lb/hr) <0.01 <0.01 <0.01 <0.01

Standard Conditions 68 o F, 29.92 in. Hg.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

7 AirNova, Inc. Table 3-3 CertainTeed Corporation Common Outlet Exhaust Stack Determination of Formaldehyde and Volatile Organic Compounds Emission Evaluation Test Program Test Results Summary Run No. 1 2 3 Average Date 12/02/04 12/02/04 12/02/04 Test Period 0952-1115 1321-1446 1723-1838 Stack Gas Characteristics Temperature ( O F) 102 104 104 103 Moisture Content (%) 7.5 7.2 7.2 7.3 Velocity (FPS) 57.9 58.1 58.4 58.1 Flow Rate (ACFM) 272,867 273,731 275,080 273,893 Flow Rate (DSCFM) 226,209 226,762 227,914 226,962 Oxygen (%) 19.80 19.80 19.77 19.79 Carbon Dioxide (%) 0.60 0.59 0.59 0.59 Formaldehyde Emissions Concentration (ppmV) 3.2 3.3 2.9 3.1 Emission Rate (lb/hr) 3.37 3.54 3.04 3.32 Volatile Organic Compounds (as methane) Concentration (ppmV) 26 27 26 26 Emission Rate (lb/hr) 14.65 15.31 14.72 14.89 Standard Conditions 68 o F, 29.92 in. Hg.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

8 AirNova, Inc. Table 3-4 CertainTeed Corporation Common Outlet Exhaust Stack Determination of Ammonia and Methanol Emission Evaluation Test Program Test Results Summary Run No. 1 2 3 Average Date 12/02/04 12/02/04 12/02/04 Test Period 0805-0935 1133-1300 1501-1629 Stack Gas Characteristics Temperature ( O F) 105 105 105 105 Moisture Content (%) 7.9 7.7 7.4 7.7 Velocity (FPS) 57.5 57.4 57.4 57.4 Flow Rate (ACFM) 271,159 270,558 270,671 270,796 Flow Rate (DSCFM) 222,727 222,563 223,305 222,865 Oxygen (%) 19.79 19.80 19.74 19.78 Carbon Dioxide (%) 0.61 0.60 0.59 0.60 Ammonia Emissions Concentration (ppmV) 131 135 136 134 Emission Rate (lb/hr) 77.3 79.4 79.9 78.9 Methanol Emissions Concentration (ppmV) 11 4 9 8 Emission Rate (lb/hr) 12.2 4.9 9.9 9.0 Standard Conditions 68 o F, 29.92 in. Hg.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

9 AirNova, Inc. Table 3-5 CertainTeed Corporation Common Outlet Exhaust Stack Determination of Particulate Matter, Phenol, and Total Organic Carbon Emission Evaluation Test Program Test Results Summary Run No. 1 2 3 Average Date 12/02/04 12/02/04 12/02/04 Test Period 0952-1115 1321-1446 1723-1838 Stack Gas Characteristics Temperature ( O F) 105 105 105 105 Moisture Content (%) 7.8 7.4 7.2 7.5 Velocity (FPS) 57.9 57.5 57.8 57.7 Flow Rate (ACFM) 272,874 271,084 272,193 272,050 Flow Rate (DSCFM) 223,866 223,873 225,155 224,298 Oxygen (%) 19.80 19.80 19.77 19.79 Carbon Dioxide (%) 0.60 0.59 0.59 0.59 Particulate Matter Concentration (gr/DSCF) 1.3E-3 2.5E-3 1.3E-3 1.7E-3 Emission Rate (lb/hr) 2.47 4.82 2.57 3.29 Phenol Concentration (ppmV) 7.3 7.6 5.4 6.8 Emission Rate (lb/hr) 23.9 25.1 17.9 22.3 Total Organic Carbon Concentration (mg/DSCM) 38.1 26.7 28.3 31.0 Emission Rate (lb/hr) 32.0 22.4 23.9 26.1 Standard Conditions 68 o F, 29.92 in. Hg.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

10 AirNova, Inc. 4.0 Sampling and Analytical Methodologies The emission test program was conducted in dete rmination of the following parameters utilizing the methodology specified below: Table 4-1 CertainTeed Corporation Wool Fiberglass Manufacturing Facility Test Methodology Summary Emission Parameter Sampling and Analytical Methodology Test Location
Volumetric Flow Rate EPA Reference Methods 1 and 2 Common Stack/Dry EP Oxygen/Carbon Dioxide EPA Reference Method 3A Common Stack/Dry EP Moisture Content EPA Reference Method 4 Common Stack/Dry EP Filterable and Condensible Particulate Matter EPA Reference Method 5/202 Dry EP
Chromium, Lead, Arsenic EPA Reference Method 29 Dry EP Nitrogen Oxides EPA Reference Method 7E Dry EP Sulfur Dioxide EPA Reference Method 6C Dry EP Formaldehyde EPA Reference Method 316 Common Stack Particulate Matter/Phenol/Total Organic Carbon EPA Reference Method 5E Common Stack

Ammonia EPA Reference Method 206 Common Stack Methanol EPA Reference Method 308 Common Stack Volatile Organic Compounds EPA Reference Method 18/25A Common Stack

4.1 Cyclonic Flow Determination The absence of cyclonic flow was demonstrated at each sampling location according to Section 11.4 of EPA Reference Method 1. An S-type pitot was connected to a manometer. The pitot tube was placed in such a position that the openings of the pi tot tube were perpendicular to the stack gas flow. An angle finder was placed on the pitot tube which was rotated until a read ing of zero (0) was obtained. The 'yaw' angle was then recorded.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

11 AirNova, Inc. 4.2 Volumetric Flow Rate Determination Traverses for volumetric flow rate at each lo cation were determined by using EPA Reference Methods 1 and 2. An S-type pitot tube attached to an inclined manometer was used to measure gas stream pressure differentials at the designated traverse points identified for each test location. A Type-K thermocouple attached to a digital temperature re adout was used to measure gas stream temperatures at each of the designated traverse points for both of th e test locations. A baseline coefficient of 0.84 was assigned to the pitot tube upon a visual inspection which meets the criteria of Section 5.0 of EPA Reference Method 2. Sampling was performed at the Common Stack test location which is situated at >2.0 duct diameters upstream and 6.0 duct diameters downstream from the nearest flow disturbances. Four (4) sample ports are situated at 90° separation. The sta ck diameter at this location is 120 inches. A total of sixteen (16) traverse points (4 points per port) we re utilized for all volumetr ic flowrate determinations. The traverse point locations were as follows: Table 4-2 CertainTeed Corporation Common Outlet Exhaust Stack Traverse Point Locations Traverse Point % of Diameter Location (in) 1 3.2 3.8 2 10.5 12.6 3 19.4 23.3 4 32.3 38.8 Sampling was performed at the Dry EP outlet in a vertical section of exhaust duct which is 45.5 inches in diameter. Two test ports located at 6. 7 duct diameters downstream and 1.2 duct diameters upstream from the nearest flow disturbances were utiliz ed for all sampling and velocity traverses. A total of twenty four (24) traverse points were utilized fo r all volumetric flowrate determinations. The traverse point locations were as follows:CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

12 AirNova, Inc. Table 4-3 CertainTeed Corporation Dry ESP Traverse Point Locations Traverse Point % of Diameter Location (in) 1 2.1 1.0 * 2 6.7 3.0 3 11.8 5.3 4 17.7 8.0 5 25.0 11.3 6 35.6 16.0 7 64.4 29.0 8 75.0 33.8 9 82.3 37.0 10 88.2 39.7 11 93.9 42.0 12 97.9 44.0 *

* Relocated in accordance with EPA Re ference Method 1, Section 11.3.1.4.

4.3 Moisture Content Moisture content determinations were performed at each sampling locati on in accordance withCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

13 AirNova, Inc. EPA Reference Method 4, Section 2.2.2. Determinat ions conducted by EPA Reference Method 4 utilized large capacity impingers and collected a minimum volume of 30 DSCF. 4.4 Gaseous Emissions Sampling An extractive sampling system was used to continuously determine CO 2 , O 2, NOX , SO 2 , and VOC concentrations. A representative sample of the flue gas was extracted through a heated (225°) stainless steel probe and filter assembly, and transported via a he at-traced Teflon sample line through a heated filter and a Teflon lined diaphragm sample pump to a condensation removal trap located in the mobile laboratory. The condensation trap was cooled to approximately 37°F. The sample exited the trap free of moisture and particulates. The sample was then introduced into a constant pressure manifold constructed of stainless steel and Teflon for metered distribution to th e respective analyzers. 4.4.1. Carbon Dioxide and Oxygen The carbon dioxide and oxygen concentrations in the stack gases were determined by EPA Reference Method 3A. The sampling system was the same as described above. Oxygen concentrations were determined using a paramagnetic oxygen analyz er. The oxygen analyzer was operated in the 0-25% range. A non-dispersive infrared analyzer was util ized to measure carbon dioxide concentrations. The carbon dioxide analyzer was operated in the 0-15% ra nge. Calibration gases were as follows: nitrogen, and two (2) upscale span gases of CO 2 /O 2in nitrogen. The upscale sp an gases were approximately 45- 55% and 80-95% of span. A zero and midpoint bias calibration was performed both before and after each test run from the sample probe. Carbon dioxide an d oxygen samples were collected simultaneously with all sampling events. Output signals from the anal yzers were stored and processed via a PC based DAS as well as a strip chart recorder. 4.4.2. Volatile Organic Compounds VOC emissions were determined by directing a portion of the sample into a total hydrocarbon analyzer equipped with a flame ionization detector (FID). With the total hydrocarbon analyzer, sample gas is transported to the FID via the sampling system described in section 4.3, with the exceptionCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

14 AirNova, Inc. that the sample gas which entered the FID bypassed the condensation trap. Once introduced into the FID, all hydrocarbon species present are io nized simultaneously to produce th e signal output. The THC-FID was calibrated with certified NIST traceable methane cali bration gases. Three (3) calibration gases of 25-35%, 45-55% and 80-95% of span, as well as a zero air (z ero gas) were utilized for instrument calibration procedures. A zero and midpoint bias calibration wa s performed for the FID both before and after each test run. The THC-FID was operated in the 0-100 ppmV range. Output signals from the THC-FID were stored and processed by a PC based DAS system as well as a strip chart recorder. 4.4.3 Sulfur Dioxide Sulfur dioxide concentrations were determined in accordance with EPA Reference Method 6C utilizing a UV photometric analyzer. The analyzer is comprised of a si ngle ultraviolet source, a chopper wheel containing two interference filters, a beam sp litter, one measuring cell, one reference cell and two matched photodetectors. During SO 2 measurement, two wavelengths are used - one which is absorbed by SO 2 is used for the measuring wavelength (285 nm) and one which is not absorbed by SO 2 or other components normally in the gas sample stream is us ed as a reference wavelength (585nm). The sample flows through the measuring cell while the reference ce ll contains only non-ab sorbing gases. As the chopper wheel rotates, a flash of radiation passes throug h the measuring filter to the beam splitter. After a brief period, a flash of radiation passes through th e reference filter to reference filter to the beam splitter. These flashes of measuring and reference ra diation continue at a nomi nal frequency of 52 times per second per filter. The beam splitter directs half the radiation through the measuring cell and half through the reference cell to the two detectors which de velop electrical signals pr oportional to the amount of radiation that impinged on the detectors. The detector signals are demultiplexed into two measuring signals and two reference signals. The reference signal s are used to automatically control the gain of each detector to independently compensate each path for optical contamination. The detector signal developed from the measuring wavelength radiation that passes through the reference cell is used to control the current to the ultraviolet source. The two detector signals developed from the reference wavelengthCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

15 AirNova, Inc. radiation that pass through the measuring and refere nce cell are used to produce an analyzer output signal that is proportional to the SO 2 concentration in the measuring cell. The SO 2 analyzer was calibrated prior to the start of sampling with NIST traceable, Protocol grade calibration gases. Calibration gases were as follows: nitrogen, and two (2) upscale span gases of approximately 45-55% and 80-95% of span. The analyzer was operated in the 0-100 ppmV range. A sampling system bias check was performed pr ior to the first test run by introducing the zero gas and the mid-level span gas at the sample probe/sampleline interface. The sampling system bias check was repeated after each test run to determin e the instrument zero and calibration drift. 4.4.4 Nitrogen Oxides Nitrogen oxides concentrations were dete rmined by EPA Reference Method 7E. The principle of this method is to continuously extract a gaseous sample of flue gas and introduce a portion of this sample into a chemiluminescent analyzer for determination of concentratio n. The principle of the analyzer is based on the following reaction: NO + O 3--> NO 2+ O 2+ a photon The photons emitted by the reaction are me asured by a photomultiplier tube. The photomultiplier signal is proportional to the number of NO molecules; therefore, the photomultiplier signal is recorded as the concentration for NO. The sample flowrate is carefully controlled. NO xis comprised of NO and NO 2 . NO 2present in the sample gas is converted into NO prior to entering the reaction chamber by a NO 2to NO converter. The NO 2to NO converter breaks one (1) of the two (2) nitrogenoxygen bonds by passing the sample gas through capillary tubing into an electronically controlled, heated catalytic converter. A converter efficiency check was performed prior to the start of the program in accordance with Section 5.6.1 of EPA Method 20. Calibration gases were 45-55% and 80-95% of span plus N 2(zero gas). A zero and midpoint bias calibration were performed from the sample probe both before and after each test run. All calibrations we re conducted in accordance with EPA Reference Method 20. Output signals were stored and processed by a PC based DAS system as well as a strip chartCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

16 AirNova, Inc. recorder. The analyzer was operated in the 0-500 ppmV range. 4.5 Filterable/Condensible Particulate Matter Determination Filterable particulate emissions were determin ed as specified in EPA Reference Method 5 by isokinetically extracting particles from the stack ga s and gravimetrically determining the amount collected in the nozzle, probe, filter holder and filter (front half fraction). Condensibl e particulate emissions were determined as specified in EPA Reference Method 202 by gravimetrically determining the amount of particles collected in the series of four (4) impingers (b ack half fraction). The volume of liquid collected in the impingers was also measured gravimetrically to determine the moisture content of the gas stream. Flue gas parameters were also recorded during the test at each sampling point. The sample train consists of a heated borosi licate glass probe maintained at 250°F ± 25°F equipped with a stainless steel button hook nozzle and attached thermocouple and pitot tube. After the probe, the sample gas passes through a heated glass fiber filter maintained at a temperature of 250°F ± 25°F. The filter was followed by a series of four (4) impingers, as mentioned above, with the first and second impingers initially containing 100 ml of distilled water each. The third impinger was initially empty and the fourth contained a known quantity of silica gel. The impingers were followed by a pump, dry gas meter and calibrated orifice. Upon completion of each test run, a leak check of the sampling train was performed at the highest vacuum encountered during the test run. Following the leak check, the sampling train was disassembled and the sample fractions were recovered. The front ha lf of the sample train (nozzle, probe and the front half of the sample train) was initially rinsed with di stilled water, then brushed and rinsed three (3) times with acetone. The washes were placed in separate high density polyethylene containers. The glass fiber filter was placed in a clean, dry petri dish. The back half of the sample train (series of four (4) impingers) was measured for volume increase and placed in an amber glass sample jar. The impingers were then rinsed with deionized water and MeCl 2and the washes retained for analysis. Front half filterable particulate was determined gravimetrically by EPA Reference Method 5. TheCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

17 AirNova, Inc. procedure which was employed involved the following steps. 1. Transfer the filter and any loose particles from the filter holder to a tared weighing dish. Oven dry at 250°F and desiccate to a constant weig ht. Record results to the nearest 0.1 mg. 2. Measure the volume of acetone and water used to rinse the nozzle, probe and front half of the filter holder. Evaporate each wash at 70 o F and 1 atmosphere in separate tared Teflon baggies. Heat each Teflon baggie to 220-230 ° F, desiccate at room temperature and weigh to a constant weight. After adjusting for blan k contamination, report results to the nearest 0.1 mg. 3. The total particulate matter collected is the sum of the weights obtained for (1) and (2). Back half condensible particulate was analyzed in accordance with EPA Reference Method 202. Wash/catch fractions were extracted with MeCl 2 . The solvent extractant and aqueous extracts were separated and dried to completeness in Teflon baggies . Each fraction was then weighted to a constant weight to determine the mass of organic and inorganic condensible PM. 4.6 Metals - Chromium, Lead, and Arsenic Toxic metals in the exhaust gases were determin ed isokinetically according to the procedures outlined in EPA Reference Method 29, "Methodology for the Determination of Metal Emissions in Exhaust Gases from Hazardous Waste Incinerator Processes". Metals sampling occurred during 2-hour sampling events with each event collecting a minimum volume of 60 DSCF. The sampling trai n consisted of the following components:

C Quartz glass sample nozzle and probe

C Heated glass quartz fiber filter

C A modified Greenburg Smith impinger containing 100 ml of a 5% HNO 3 /10% H 2 O 2 C A Greenburg-Smith impinger containing 100 ml 5% HNO 3 /10% H 2 O 2 C A Greenburg-Smith impinger initially dry

C An impinger containing approximately 225 g of silica gel desiccant

C Dry gas meter equipped with inlet and outlet thermocouples The sample was extracted from the exhaust stre am using a vane-type vacuum pump. Isokinetic sampling conditions were maintained through the use of a type "S" pitot tube to monitor the exhaust gas stream pressure differentials. A type "K" thermo couple was utilized to determine the exhaust gas temperature.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

18 AirNova, Inc. At the completion of sampling, the probe liner, nozzle, and front half of the filter housing were rinsed and brushed with a 0.1N nitric acid reagent and the washings retained for analysis. The quartz filter was removed from the filter holder and placed in a pe tri dish and sealed. The contents of impingers 1, 2, and 3 were measured for volume increase and placed in a separate container along with 0.1N nitric acid washings of the impingers and back half of the filter housing. The silica gel was recovered from the last impinger and placed in a sealed container for weight gain determination. Prior to analysis, the collected front and back halfliquid sample volumes were reduced to 30 ml and 25 ml respectively. 4.7 Particulate Matter/Phenol/Total Organic Carbon Particulate matter, Phenol, and Total Organic Carbon (TOC) emission s were determined in accordance with EPA Reference Method 5E, “Deter mination of Particulate Emissions from the Wool Fiberglass Insulation Manufacturing Industry”. Prior to sampling, the sample train was leak checked at 15 inches Hg vacuum to ensure that all sample train components were leak free. During sampling, gas samples were isokinetically extracted from the exha ust stack and passed through a quartz glass nozzle, a glass lined probe and a quartz fiber filt er, all maintained at a temperature of 250 o F or less, but sufficiently high to prevent condensa tion on the glass fiber filter. Th e gas sample then passed through an impinger train consisting of four (4) glass impingers immersed in an ice bath . The arrangement of the impingers was as follows:
1 st : Modified Greenburg-Smith, containing 100 ml of 0.1N NaOH. 2 nd : Greenburg-Smith containi ng 100 ml of 0.1N NaOH. 3 rd : Modified Greenburg-Smith initially dry 4 th : Modified Greenburg-Smith containing approximately 350 g of silica gel for final drying of the gas sample The sample gas volume was measured by passing itthrough a calibrated dry gas meter. An S-type pitot tube was attached to the sa mple probe to monitor the stack ga s velocity in order to maintain isokinetic sampling conditions. In addition, a type K thermocouple wa s attached to measure the exhaust gas temperature. Following each test run, the sa mple train was leak checked at the highest vacuumCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

19 AirNova, Inc. recorded during the run. After each run, the probe, nozzle and all connect ing glassware ahead of the filter were brushed and rinsed with acetone. The washings were retained in a high density polyethyle ne container. The quartz fiber filter was placed in it's original petri dish. The impinger contents were recovered and measured for moisture gain. The impinger contents were then captur ed into a glass amber jar. The silica gel was placed in its original pre-weighed polyethyle ne container. Impingers 1,2, and 3 were then rinsed three (3) times each with deionized water and the washes were placed into a glass amber jar. After receiving and logging the samples at the AirN ova, Inc. laboratory, the glass fiber filters were oven dried for 2 - 3 hours at the average temperat ure maintained during the corresponding test run, desiccated for 2 - 3 more hours and then reanalyzed for a final weight determination. The acetone samples were evaporated at room temperature and pressure in tared beakers, desiccated for 24 hours and also reanalyzed for a final weig ht determination. Laboratory data was then inputed to a spreadsheet software program to calculate PM concentration (grains/dscf) and mass emissions (lb/hr). TOC emissions were quanti fied by converting organic carbon in the sample to carbon dioxide by catalytic combustion or wet chemical oxidation. Th e carbon dioxide formed was measured directly by an infrared detector or converted to methane and measur ed by a flame ionization detector. The amount of carbon dioxide or methane is direct ly proportional to the concentratio n of carbonaceous material in the sample. Phenol emissions were quantified in the 0.1N Na OH solution by being acidified and analyzed by using a High Performance Liquid Chromatograph (HPLC) equipped with an ultraviolet detector. 4.8 Formaldehyde Formaldehyde emission determinations were pe rformed isokinetically utilizing EPA Reference Method 316. “Sampling and Analysis for FormaldehydeEmissions from Stationary Sources in the Mineral and Wool Fiberglass Industry”. Samples were withdr awn from the exhaust stack through a stainless steel nozzle and a heated, glass-lined probe. The gas stream then enters an impinger train. The first impinger,CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

20 AirNova, Inc. a modified Greenburg-Smith, contained 100 ml of ASTM Type 1 water and was followed by a GreenburgSmith impinger containing 100 ml of ASTM Type 1 water. A third impinger, a modified Greenburg-Smith design was initially empty. The last impinger contai ned a pre-weighed quantity of silica gel. The sample probe was heated to 248±25°F. Sampling was cond ucted isokinetically for a period of 60 minutes collecting a sample volume of approximately 50 DSCF. At the completion of sampling, the nozzle, pr obe and all connecting glassware ahead of the impingers were brushed and rinsed with water. Th e washings were retained in an amber glass sample jar with a Teflon lined lid. All impingers were measured for any increase in volume and retained in the same container along with water rinses of the impingers and all conne cting glassware. The silica gel was measured gravimetrically for any increase in moisture content. The samples were analyzed by the Pararosaniline spectrophotometric technique described in the method. 4.9 Ammonia Emissions of ammonia were determined isokinet ically using EPA Reference Method 206. The sample train consisted of the followi ng apparatus connected in series:

C In-stack glass fiber filter and quartz glass nozzle

C Heated glass probe

C Two (2) Greenburg-Smith impingers ea ch containing 100 ml of 0.1 N H 2 SO 4 C A modified Greenburg-Smith impinger initially empty

C A modified Greenburg-Smith impinger co ntaining 225 g of silica gel desiccant

C Vane type pump

C Dry gas meter equipped with thermocouples An S-type pitot tube attached to the sample probe monitored the exhaust gas stream pressure differentials in order to maintain isokinetic sampli ng conditions. A K-type thermocouple was used to measure the exhaust gas temperature. Sampling was conducted during three (3) 60 mi nute events each collecting a minimum sample volume of 30 DSCF. Prior to the start of sampling, leak checks were conducted at 15 in. Hg vacuum to insure that all connections were leak free.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

21 AirNova, Inc. At the completion of sampling, the sampling train was post run leak checked and then disassembled and the sample fractions recovered. The no zzle and front half of the filter holder were rinsed and brushed with distilled water and the rinsings were retained in a polyethylene sample jar. The glass fiber filter was removed and retained in a glass petri dish . All sample exposed areas of the front half of the sampling train (probe and back of the filterholder) were brushed and washed with 0.1 N H 2 SO 4and placed in a polyethylene container. The contents of Impinger No.' s 1 and 2 were measured for volume increase, rinsed with deionized distilled water to a volume not exceeding 230 ml and placed in a 250 ml polyethylene container. The conten ts of Impinger No. 3 were measured for volume increase, rinsed with deionized distilled water to a volume not exceeding 230 ml and placed in a 250 ml polyethylene container The silica gel desiccant was removed from the lastimpinger and placed in a pretared polyethylene container. The samples were refrigerated then tran sported to the AirNova, Inc. facility for subsequent analysis. The silica gel samples were reweighed to determin e moisture gain. All collected sample fractions were analyzed in accordance with EPA Referenc e Method 206 utilizing an HPLC equipped with a nonsuppressed conductivity detector. 4.10 Methanol Methanol emissions were determined in accordance with EPA Reference Method 308, “Procedure for the Determination of Methanol Emission s from Stationary Sources”. Utilizing this method, a gas sample is extracted from a centroid point inside the stack. The methanol is collected in deionized water and absorbed on silica gel tubes. Specifica lly, two (2) midget impingers connected in series were filled with 15 ml of deionized distilled water, and a si lica gel tube was attached to the impinger as a drying agent. Stainless steel and teflon tubing was utilized as the sampling probe before the midget impinger and after the silica gel tube into the dry gas volume meter. The train was pre-leak checked at 10 inches of mercury vacuum to ensure that all components of the sampling train were leak free. A post-leak checkCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

22 AirNova, Inc. was conducted at the end each test run at 10 inches of vacuum. Following the end of each test run and the post-leak check, the sampling train was disassembled, and the midget impinger filled with deionized water was captured in a 45 ml amber vial. Three (3) deionized water rinses were implemented for the midget impinger and placed in the same sample vial. Analysis of the sample fractions obtained by aqu eous impingement and silica gel tube absorption involved the utilization of an 8610 SRI Gas Chroma tograph equipped with a flame ionization detector.

5.0 Quality Assurance/Quality Control Procedures All of the source sampling and analytical proced ures were performed in accordance with the USCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

23 AirNova, Inc. EPA's 'Good Laboratory Practice' guid elines. AirNova, Inc. followed the requirements of the individual test methods to ensure the precision and accuracy of the so urce testing procedures. In addition, AirNova, Inc. followed the procedures provided in the 'Quality Assurance Handbook for Air Pollution Measurement Systems, Volume III, Stationary Sources'. Sampling equipment utilized in the test program was calibrated prior to the test performance. The following procedures were utilized. 5.1 S-Type Pitot Tubes The S-type pitot tubes were visually inspected to verify dimension requirements. Pitot tubes meeting requirements were assigned a pitot tube coe fficient of 0.84. Pitot tubes which did not meet the requirements were not utilized. 5.2 Dry Gas Meters and Orifice All dry gas meters used in the field were calibrat ed against a transfer standard dry gas meter that is maintained in AirNova's calibration data. The tran sfer standard gas meter is calibrated annually and certified against an NIST traceable Bell-type Pr over which operates by liquid displacement. Field dry gas meters and orifice meters are cali brated at two month intervals at the following orifice meter settings:

C 0.5 in. H 2 O

C 1.0 in. H 2 O

C 1.5 in. H 2 O

C 2.0 in. H 2 O

C 3.0 in. H 2 O

C 4.0 in. H 2 O
The initial and final volume readings and temp erature readings were recorded for the dry gas meter and the secondary standard test meter at each orifice meter setting. A dry gas meter correction factor (DGMCF) was calculated for ea ch setting and the average DGMCF was recorded. All calibration documentatio n is stored in a designated filing ca binet for future reference. All repair and maintenance documentation for each meter is stored in files that provide a history of each meter and aid in our preventative maintenance program.CertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

24 AirNova, Inc. AirNova, Inc. also participates in the EPA Method 5 dry Gas Meter Audit Program. 5.3 Nozzles Probe nozzles selected for isokinet ic sampling were calibrated a ccording to section 3.4.2 of the "Quality Assurance Handbook for Air Pollution Measur ement Systems: Volume III" Upon receipt, the inner diameter of each nozzle was measured across three (3) distinct diameters with a micrometer caliper. The calibrated nozzle diameter is the average of thes e measurements. Each nozzle is identified uniquely and its calibrated diameter is checked prior to use. 5.4 Thermocouples Thermocouples and thermometers utilized in th e sampling program were calibrated according to section 3.4.2 of the "Quality Assurance for Air Pollution Measurement Systems: Volume III" every two months. The calibration method includes compar ing each field thermometer and thermocouple at different temperatures to an ASTM certified merc ury-in-glass thermometer. The temperatures must agree within the tolerances mentioned for the type of sampling equipment being calibrated. All the calibration data is stored in a designated filing cabinet for future reference. 1. Stack Gas and Filter Housing Thermocouples and Thermometers Three temperatures are measured and extrap olated over the range of temperatures encountered in field operations. The thr ee temperatures used for calibration are: 1. Ice bath 2. Boiling point of water 3. Boiling point of cooking oil (o r equivalent in solid salt bath) 2. Impinger Thermometers and Thermocouples Two temperatures are required to calibrate: 1. Ice bath 2. Stabilized room temperature 3. Dry Gas Thermometers Two temperatures are required to calibrate: 1. Stabilized hot water bath at approximately 104 - 122°F (40 - 50°C) 2. Stabilized room temperature 5.5 Labels All samples collected as part of the sampling pr ogram (silica gel desiccant samples) were affixedCertainTeed Corporation Project No. 2761 December 2004 Revision No. 0

25 AirNova, Inc. with labels which identify the following: 1) Project No ., 2) Date, 3) Type of sample, 4) Run No., 5) Sample location, and 6) Sample fraction. 5.6 Chain-of-Custody Documentation Chain-of-custody documentation for all samples was implemented at the completion of sampling and sample clean-up and was documented until the samp les were received by the laboratory for analysis. 5.7 Calibration Gases

C NIST Traceable Protocol 1 grade (±1%) gas standards were utilized for calibration of the O 2 , CO 2 , NOX , SO 2 , and THC analyzers.