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ATTACHMENT 3 <br /> IIUIVIAN HEALTH SCREENING EVALUATION <br /> POMBO.PROPERTY <br /> 1755 WIaST 11TH STREET,TRACY,CALIFORNIA. <br /> PROJECT#7243.001. <br /> MAXIMUM CONC;GROUNDWATER NOT POTABLE <br /> DIFFUSIVITY IN AIR(Di)-GUIDELINE FOR PREDICTIVE BASELINE`EMISSIONS.ESTIM'ATION.PROCEDURES FOR SUPERFCiND.SITES'EPA;,1992 . <br /> Gbeuucal MIV `#;Carbons: #;Hydrogens #Oxygens, #Nitrogens #Chlorines. [#Aromak Rings? #Heterocyclic: Vi Di <br /> LIM';Phenanthrene; ? l4 - lU 0 p p. 3 Q' L90.20. O.ObQ. <br /> 1?t= f0.00lV1.75*(1/MWi+UMWaI^05). <br /> (Ya)^15)1"2} <br /> Where':- <br /> C3tom; 163: <br /> H atom . 198 <br /> N`dilom . :69 <br /> Ct atom 19:5 <br /> Aromatic. '-2Q2;. <br /> Heterocyclic. =20.2, <br /> Source:U.S.EPA,1492 <br /> Parameter: S bola Value- Units' <br /> Tein"erasure, T. 298 °K <br /> IvlolecularWei'ht of Air M�Ya 28:8: _ mole- <br /> Absolute Pressure Pab .:, 1 atmos hetes: <br /> MolecularDifffi on <br /> Voluiiic.ol Air Va :20:1 cm3lmole> <br /> Pomba based on UCLsibi.Calcufaiion Page S of l8 <br />