Quantifying Uncontrolled Landfill Gas Emissions from Two Florida ...

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Chapter 2 Test Procedures The following subsections describe the test procedures used during the optical remote sensing measurements at each of the survey cells at the two sites. Refer to Figures 1-1 and 1-2 for the geographical orientation of each survey cell. For the ORS measurements, 10 mirrors were used with each ORS instrument for a total of 20 mirrors for each survey within each landfill cell. The coordinates of the mirrors used in each configuration are presented in Appendix B of this report. Additionally, the test procedures used to collect the mercury samples, Summa canister samples, and gas flow measurements, are described below. 2.1 Optical Remote Sensing Measurements at <strong>Landfill</strong> Site #1 2.1.1 Control Cell The control cell was located on the western side of landfill Site #1 (see Figure 1-1). ORS measurements were collected in this cell on February 20. The Control Cell was a closed cell, and a synthetic liner was installed over the surface of the cell in November 2001. The VRPM configuration consisted of a scanning OP-FTIR instrument, a scanning OP-TDLAS instrument, and two vertical structures. The OP-FTIR was deployed in the northwestern corner of the cell, the OP-TDLAS was deployed in the southeastern corner of the cell, and the two vertical structures were deployed in the northeastern and southwestern corners of the cell, respectively. Figure 2-1 presents a schematic of the measurement configuration used in the control cell, showing the distances of the VRPM planes. The dashed black lines depict the location of the four VRPM measurement planes. Figure 2-2 shows a photo of the measurement configuration. Figure 2-1. Schematic of measurement configuration at the control cell of Site #1 2-1
Figure 2-2. Detail of measurement configuration at the control cell of Site #1 2.1.2 Bioreactor Cell The bioreactor cell was located on the eastern side of landfill Site #1 (see Figure 1-1). ORS measurements were collected in this cell on February 22. The bioreactor cell was accepting waste during the time of the measurements, so it was not possible to deploy the instrumentation over the entire footprint of the cell due to heavy machinery traffic associated with landfill operations. The VRPM configuration consisted of a scanning OP-FTIR instrument, a scanning OP-TDLAS instrument, and two vertical structures. The OP-FTIR was deployed in the northwestern corner of the cell, the OP-TDLAS was deployed in the southeastern corner of the cell, and the two vertical structures were deployed in the northeastern and southwestern corners of the cell, respectively. The work face was located in the eastern portion of the landfill cell. Figure 2-3 presents a schematic of the measurement configuration used in the Bioreactor Cell, showing the distances of the VRPM planes. The dashed black lines depict the location of the four VRPM measurement planes. The dashed yellow line indicates the configuration used to collect background measurements at the site. 2-2
Page 1 and 2: Quantifying Uncontrolled Landfill G
Page 3 and 4: Foreword The U.S. Environmental Pro
Page 5 and 6: 3.1.3 Total Site Methane Emissions
Page 7 and 8: List of Tables Table 1-1. Target Co
Page 9 and 10: Table 3-28. Calculated Methane Flux
Page 11 and 12: Table C-6. Methane Concentrations (
Page 13 and 14: List of Figures Figure 1-1. Map of
Page 15 and 16: Executive Summary Waste decompositi
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Page 19 and 20: instrument (IMACC, Inc.). Figures 1
Page 21 and 22: Figure 1-3. Scanning Boreal GasFind
Page 23 and 24: wind direction data are collected n
Page 25 and 26: adsorption spectrometer. The analyz
Page 27: Table 1-2. Schedule of Work Perform
Page 31 and 32: corners of the cell, respectively.
Page 33 and 34: 2.2.3 Background Measurements Backg
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Page 37 and 38: was aligned on the mirror targets i
Page 39 and 40: methane concentrations measured alo
Page 41 and 42: Figure 3-3 Summary of ORS measureme
Page 43 and 44: Table 3-5. Calculated methane flux
Page 45 and 46: Table 3-7. Calculated methane flux
Page 47 and 48: cell to the base. The following equ
Page 49 and 50: Table 3-9. Results of TO-15 analysi
Page 51 and 52: Table 3-10. Results of C1 to C6 and
Page 53 and 54: Table 3-14. Monomethyl Mercury Conc
Page 55 and 56: 3.2 Landfill Site #2 3.2.1 Control
Page 63 and 64: 3.2.2 Bioreactor Cell 3.2.2.1 Febru
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Page 71 and 72: Table 3-34. Results for C1 to C6 an
Page 73 and 74: Table 3-38. Monomethyl Mercury Conc
Page 75 and 76: 3.3 Gas and Mercury Sampling Result
Page 77 and 78: Site #1 with a level of 83 ppmv. Th
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The surveys also found significant
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Monomethyl mercury concentrations i
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5.1 Equipment Calibration Chapter 5
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The R 2 value was used to assess th
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the measured path-integrated methan
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5.2.7 DQI Check of Total Mercury Sa
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Site #1 5.4 Site #2 77.9 Completene
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U.S. Environmental Protection Agenc
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d f e c b PDCs Y X a 2 12( y)( z) (
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When the VRPM configuration consist
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Table B-3. Distance, and Horizontal
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Table B-7. Distance, and Horizontal
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APPENDIX C Path-Averaged Methane Co
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Table C-3. Methane Concentrations (
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Table C-11. Methane Concentrations
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