Quantifying Uncontrolled Landfill Gas Emissions from Two Florida ...

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Sample Type: Landfill Gas Landfill Gas Landfill Gas Nitrogen Blank Can ID: Can F-2 Can F-3 Can F-4 Can F-5 Average Landfill Gas Concentration Corrected Landfill Gas Concentration CAS NO. COMPOUND ppbv Ppbv ppbv ppbv ppbv ppbv 107-06-2 1,2-dichloroethane ND ND ND ND ND ND 79-01-6 Trichloroethylene 9.5 50.1 47.4 ND 35.7 36.7 78-87-5 1,2-dichloropropane ND ND ND ND ND ND 75-27-4 Bromodichloromethane ND ND ND ND ND ND 123-91-1 1,4-dioxane ND ND ND ND ND ND 10061-01-5 cis-1,3-dichloropropene ND ND ND ND ND ND 108-88-3 Toluene 954.5 4259 3110 144.8 2775 2852 108-10-1 4-Methyl-2-pentanone (MIBK) 61.1 295.7 193.1 6.8 183.3 188.4 1006-02-6 t-1,3-dichloropropene ND ND ND ND ND ND 127-18-4 Tetrachloroethylene 9.1 43.3 ND ND 17.5 18.0 79-00-5 1,1,2-trichloroethane ND ND ND ND ND ND 124-48-1 Dibromochloromethane ND ND ND ND ND ND 106-93-4 1,2-dibromoethane ND ND ND ND ND ND 591-78-6 2-Hexanone ND ND ND ND ND ND 100-41-4 Ethylbenzene 762.1 3281 2337 ND 2127 2186 108-90-7 Chlorobenzene ND ND ND ND ND ND 1330-20-7 m/p-Xylene 1397 6005 4416 155.9 3939 4049 95-47-6 o-Xylene 373.1 1679 1222 47.6 1091 1122 100-42-5 Styrene 40.8 UB 201.7 131.1 11.8 111.0 114.1 75-25-2 Tribromomethane ND 26.1 ND ND 8.9 9.1 79-34-5 1,1,2,2-tetrachloroethane ND ND ND ND ND ND 622-96-8 1-ethyl-4-methylbenzene ND ND ND ND ND ND 108-67-8 1,3,5-trimethylbenzene 210.5 922.4 659.2 11.8 597.4 614.0 95-63-6 1,2,4-trimethylbenzene 221.1 930.6 694.1 14.2 615.2 632.3 541-73-1 1,3-dichlorobenzene ND ND ND ND ND ND 106-46-7 1,4-dichlorobenzene ND ND ND ND ND ND 100-44-7 Benzyl chloride ND ND ND ND ND ND 95-50-1 1,2-dichlorobenzene ND ND ND ND ND ND 87-68-3 1,1,2,3,4,4-hexachloro-1,3butadiene ND ND ND ND ND ND 120-82-1 1,2,4-trichlorobenzene ND ND ND ND ND ND UB = Sample concentration less than 5 times the blank concentration ND = Not detected 3-15
Table 3-10. Results of C1 to C6 and permanent gases by GC/FID/TCD from Site #1 Analyte: Methane Ethane Propane Butane Pentane Hexane O2 N2 CO2 Sample Type Sample ID (%) (ppmv) (ppmv) (ppmv) (ppmv) (ppmv) (%) (%) (%) Landfill Gas F-2 6.1 8.6 3.5 3.4 ND ND 20.1 79 ND Landfill Gas F-3 33.2 9.5 11.7 5.5 7.5 12.6 10.6 39.1 25.7 Landfill Gas F-4 15.5 5.9 6.1 4.4 7 ND 17.7 66.8 19.6 Nitrogen Blank F-5 0.0032 ND ND ND ND ND 4 101 ND Table 3-11. Results of Method 25-C analysis from Site #1 Analyte: Methane CO2 NMOC Mass Conc. Sample Type Sample ID (%) (%) (ppmv) (mg/m 3 ) Landfill Gas F-2 64.4 46.1 2576 1286 Landfill Gas F-3 59.4 43.2 2782 1389 Landfill Gas F-4 58.2 42.2 2677 1337 Nitrogen Blank F-5 ND ND ND ND The results in Table 3-10 show a possible leak during the analysis, and should be considered as suspect data. Concentrations of O2, methane, and CO2, are not typical of a mature gas producing landfill, as O2 concentrations should be less than 2 percent, methane greater than 50 percent, and CO2 greater than 35 percent. The sum of the concentrations for methane, O2, N2, and CO2 also exceed 100% in all cases due to problems in the analysis. In response to these questionable results, additional landfill gas measurements were taken during the October 2007 field campaign. These results are presented in Section 3.3 of this document. The results shown in Table 3-11 appear to be the most valid results for methane and CO2 because this method was specifically designed for measuring landfill gas concentrations. With the exception sample F-2, the sum of the concentrations for methane and CO2 more closely balance to 100% than the results presented in Table 3-10. 3.1.5 Total Mercury Measurements Total mercury concentrations in the landfill gas from Site #1 ranged from 4958 to 5148 ng/m 3 with an average of 5022 ng/m 3 for all of the samples. Matrix spike recovery for the total mercury sample was 98.2 percent. Table 3-12 presents the total mercury concentration data from Site #1. 3-16
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 and 28: Table 1-2. Schedule of Work Perform
Page 29 and 30: Figure 2-2. Detail of measurement c
Page 31 and 32: corners of the cell, respectively.
Page 33 and 34: 2.2.3 Background Measurements Backg
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: Table 3-9. Results of TO-15 analysi
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
Page 69 and 70: Based on the calculations presented
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
Page 79 and 80: The surveys also found significant
Page 81 and 82: Monomethyl mercury concentrations i
Page 83 and 84: 5.1 Equipment Calibration Chapter 5
Page 85 and 86: The R 2 value was used to assess th
Page 87 and 88: the measured path-integrated methan
Page 89 and 90: 5.2.7 DQI Check of Total Mercury Sa
Page 91 and 92: Site #1 5.4 Site #2 77.9 Completene
Page 95 and 96: U.S. Environmental Protection Agenc
Page 97 and 98: d f e c b PDCs Y X a 2 12( y)( z) (
Page 99 and 100: When the VRPM configuration consist
Page 101 and 102:
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Page 103 and 104:
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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