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The City of Everett
<br />The Floyd & Snider Team Everett Landfill/Tire Fire Site
<br />Table 1
<br />Air Quality Modeling Results
<br />Ambient Standards & Modeled Ambient Air Concentrations
<br />Undiluted Subsurface Landfill Gas
<br />Averages'
<br />Modeled
<br />Modeled
<br />Contribution
<br />Contribution
<br />for Developed
<br />for Developed
<br />Modeled
<br />MTCA
<br />Conditions2
<br />Conditions3
<br />Contribution
<br />Cleanup
<br />with H2S
<br />without H2S
<br />for Existing
<br />Overall
<br />FSI
<br />B&V
<br />ASIL
<br />ASIL
<br />Standard
<br />Treatment
<br />Treatment
<br />Conditions°
<br />Average
<br />Average
<br />Average
<br />CAS
<br />Compound
<br />M.W.
<br />Type
<br />(ug/m3)
<br />(ug/m3)
<br />(ug/m3)
<br />(ug/m3)
<br />(ug/m3)
<br />(ug/m3)
<br />(uglm3)
<br />(ug/m3)
<br />75-71-8
<br />Dichlorodifluoromethane
<br />121.0
<br />B
<br />16,000.0
<br />80.0
<br />0.017
<br />0.006
<br />0.007
<br />402.6
<br />402.6
<br />74-87-3
<br />Chloromethane
<br />50.5
<br />B
<br />340.0
<br />1.7
<br />0.001
<br />0.000
<br />0.000
<br />25.8
<br />25.8
<br />76-14-2
<br />1,2-Dichloro-1,1,2,2-tetrafluoroethane
<br />171.0
<br />B
<br />23,000.0
<br />None
<br />0.052
<br />0.019
<br />0.020
<br />1,205.9
<br />1,205.9
<br />75-01-4
<br />Vinyl chloride
<br />62.5
<br />A
<br />0.012
<br />1.0
<br />0.001
<br />0.000
<br />0.001
<br />189.5
<br />219.4
<br />159.7
<br />75-00-3
<br />Chloroethane
<br />64.5
<br />B
<br />1,000.0
<br />4,600.0
<br />0.011
<br />0.004
<br />0.004
<br />263.2
<br />337.6
<br />188.7
<br />75-69-4
<br />Trichlorofluoromethane
<br />137.0
<br />B
<br />19,000.0
<br />320.0
<br />0.002
<br />0.001
<br />0.001
<br />51.4
<br />48.8
<br />54.0
<br />75-35-4
<br />1,1-Dichloroethene
<br />97.0
<br />B
<br />67.0
<br />None
<br />0.002
<br />0.001
<br />0.001
<br />35.7
<br />35.7
<br />75-09-2
<br />Methylene chloride
<br />84.9
<br />A
<br />0.56
<br />1.1
<br />0.000
<br />0.000
<br />0.000
<br />59.3
<br />59.3
<br />76-13-1
<br />1,1,2-Trichloro-1,2,2-trifluoroethane
<br />187.0
<br />B
<br />27,000.0
<br />13,700.0
<br />0.003
<br />0.001
<br />0.001
<br />69.1
<br />69.1
<br />75-34-3
<br />1,1-Dichloroethane
<br />99.0
<br />B
<br />2,700.0
<br />1.0
<br />0.002
<br />0.001
<br />0.001
<br />40.8
<br />382
<br />43.4
<br />156-59-2
<br />cis-1,2-Dichloroethene
<br />96.0
<br />B
<br />2,600.0
<br />1.0
<br />0.002
<br />0.001
<br />0.001
<br />39.4
<br />37.6
<br />41.1
<br />67-66-3
<br />Chloroform
<br />119.0
<br />A
<br />0.043
<br />1.0
<br />0.000
<br />0.000
<br />0.000
<br />44.1
<br />44.1
<br />107-06-2
<br />1,2-Dichloroethane
<br />99.0
<br />A
<br />0.038
<br />1.0
<br />0.000
<br />0.000
<br />0.000
<br />37.3
<br />37.3
<br />71-43-2
<br />Benzene
<br />78.1
<br />A
<br />0.12
<br />5.9
<br />0.003
<br />0.001
<br />0.007
<br />865.3
<br />854.0
<br />876.5
<br />108-88-3
<br />Toluene
<br />92.1
<br />B
<br />400.0
<br />183.0
<br />0.020
<br />0.007
<br />0.008
<br />456.6
<br />230.0
<br />683.1
<br />127-18-4
<br />Tetrachloroethene
<br />166.0
<br />A
<br />1.1
<br />5.4
<br />0.000
<br />0.000
<br />0.000
<br />61.4
<br />61.4
<br />108-90-7
<br />Chlorobenzene
<br />113.0
<br />B
<br />150,0
<br />8.0
<br />0.024
<br />0.009
<br />0.009
<br />552.1
<br />616.0
<br />488.2
<br />100-41-4
<br />Ethylbenzene
<br />106.0
<br />B
<br />1,000.0
<br />457.0
<br />0.042
<br />0.016
<br />0.016
<br />982.5
<br />731.0
<br />1,234.0
<br />1330-20-7
<br />m,p-Xylene
<br />106.0
<br />B
<br />1,500.0
<br />320.0
<br />0.093
<br />0.034
<br />0.036
<br />2,160.7
<br />1,156.0
<br />3,165.4
<br />100-42-5
<br />Styrene
<br />104.0
<br />B
<br />1,000.0
<br />32.5
<br />0.002
<br />0.001
<br />0.001
<br />56.6
<br />56.6
<br />95-47-6
<br />o-Xylene
<br />106.0
<br />B
<br />1,500.0
<br />320.0
<br />0.008
<br />0.003
<br />0.003
<br />184.2
<br />150.0
<br />218.4
<br />79-34-5
<br />1,1,2,2-Tetrachloroethane
<br />167.9
<br />B
<br />23.0
<br />None
<br />0.003
<br />0.001
<br />0.001
<br />72.8
<br />72.8
<br />108-67-8
<br />1,3,5-Trimethylbenzene
<br />120.0
<br />None
<br />None
<br />0.016
<br />0.006
<br />0.006
<br />362.6
<br />362.6
<br />95-63-6
<br />1,2,4-Trimethylbenzene
<br />120.0
<br />None
<br />None
<br />0.053
<br />0,020
<br />0.021
<br />1,244.4
<br />1,244.4
<br />541-73-1
<br />1,3-Dichlorobenzene
<br />147.0
<br />None
<br />None
<br />0.003
<br />0.001
<br />0.001
<br />73.1
<br />73.1
<br />106-46-7
<br />1,4-Dichlorobenzene
<br />147.0
<br />A
<br />1.5
<br />366.0
<br />0.001
<br />0.000
<br />0,002
<br />192.7
<br />181.0
<br />204.4
<br />95-50-1
<br />1,2-Dichlorobenzene
<br />147.0
<br />B
<br />1,000.0
<br />64.0
<br />0.005
<br />0.002
<br />0.002
<br />112.6
<br />112.6
<br />120-82-1
<br />1,2,4-Trichoorobenzene
<br />181.0
<br />B
<br />120.0
<br />4.8
<br />0.010
<br />0,004
<br />0.004
<br />233.8
<br />233.8
<br />87-68-3
<br />Hexachlorobutadiene
<br />261.0
<br />B
<br />0.7
<br />1.0
<br />0.005
<br />0.002
<br />0.002
<br />119.3
<br />119.3
<br />78-93-3
<br />2-Butanone
<br />72.1
<br />B
<br />1,000.0
<br />460.0
<br />0.002
<br />0,001
<br />0.001
<br />42.0
<br />84.0
<br />0.0
<br />78-93-3
<br />-Hydrogen sulfide
<br />34.1
<br />B
<br />0.9
<br />0.41
<br />0.202
<br />0.375
<br />0.394
<br />23,501.0
<br />23,501.0
<br />Notes:
<br />1 See Appendix H for data sheets used to calculate averages.
<br />2 Developed conditions: three emission release stacks 35 feet high.
<br />3 Developed conditions: one emission release stack 30 feet high.
<br />4 Existing conditions: emissions are assumed to emanate uniformly from a series of area sources covering the entire surface of the landfill.
<br />FSprojectmCOEv-BR EverettLandtilITSNoduclun',FeasibdityStudy Document�Tables'.Table t Compliance Monitoring and Contingency Plan
<br />FINAL - March 2001 Page 1 of 1 Table 1
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