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ATTACHi14ENT 4 <br /> HUMAN HEALTH SCREENING EVALUATION <br /> POMBO PROPERTY <br /> 1755 WEST LITH STREET;TRACY,CALIFORNIA <br /> PROJECT#7243.001 <br /> 4 %OCL;GROUNDWATER POTABLE, <br /> PHYSICOCHEMICAL PROPERTIES <br /> Log Ocfanol, Organic <br /> water Hcory-'s Law. Henry's Low Aqueous- Cnrtiun 113o1ecular <br /> Cbcinical Partition Diffusivityin Air(Di)' Partition }Vei t Vapor VOC? rbty( Absorption <br /> Purmeab constant. <br /> Constant(IH Constant(H) Solubility(S): 1 Pressure(VP) (Kp}t. P <br /> CoefGcicnt(log Coerrrciek. Mv) Fractions Soil <br /> Koiv) (Kocj, <br /> geed calculated,:- <br /> s given: :calculated <br /> {ABSds) <br /> (atm•in/M0161, (umtic"ss) f ) fcm/sec} (cm lsec); (Vk')• (Plinolel (nrrn:H ) `(cinli)r), {attThr). <br /> Benzene 2.13 5.55E-03 228E-01 L`:75E+03 8:80F O2' - 9.80E-06 5.,89E+01. 78.11 Yes 0.021 <br /> -} <br /> 0`1 <br /> Eth'Iben�erie 3:15 > 8.,44E=03r 3.46E-01 1'.6112+02 0.075 220E+02 106:2 9.5 Yes. 0.074; _ 0;1 <br /> Toluene 2.73: 5.94E-03 2.44E=01 5`35E+02 0.078 2.57E+02' 92" 28.4 Yes 0.045, 0;:1 <br /> X tcncs,Tot51 9.17 5:3QE-O3° 2.17E-01 2.,00E+02 0.087 2.40&02 106.2 7.9 Yes 0:08. 01 <br /> Arena lithene= 3:92 1.,20E<03• 4.92E-01. 3188E+00 0,064 4.,60E+03 154:2 :2.23E-03 Yes NA 0:092' O.tS <br /> senz0(a)ahtliiacene 5.66. 3.,35E-06 1.37E-04 9.40E-03 0.051 3.98E+US 22813 5.31E-07. No 0;81 <br /> Ch sone 5,66; 9.46E-05 3 88E=03 1,60E 03. 0.025 -- 3.98E+05 2283 5.30E-09 No 0:81 d;t5 <br /> Fludrantheim: 4.95 1.61-E-05 6.,60E-04- :2:U6E•Ol 0.0302: 1.07E+0S 202 3 b.,17E-05: No 0;36 0:15: <br /> Fluorene 4.217 6.42E-05 2.63E=03 1.,90E+00 0.061 - .90E+03 066.2 2.15R-03, Yes t�iA' 0.133` <br /> Naphthalene 3 30 5.00E-04 - 2705E-02 3 17E40L @069' - 1,29E+03 I2S 0.082' Yes: ONA <br /> 0':15. <br /> PheaaniFuene 4'.5T 3;90)x05 1.,60E 03 9.,98E 01: NA. 0:060 2.72E+04; 178:24: 4.,44E-04': <br /> IJo 0;27 0:15 <br /> "enei 5.11. 1.I OE705:' 4.5.,1E-04 I35120l' 4.027 1.05E+05 202:26'. 3'.0912=05 No NA 0.311).. 0:15. <br /> H'- H:*4A.. <br /> Source Cal=EEA.1994 <br /> Dr= .(4:001"1'^1;75*(1/IvfWi'+'tliN\Va)TOS)` <br /> (P?*I�Vj^I/3.+(Ua)"Il3)]"Z):> <br /> S.oaee Sez"Di Calctilation",Worksheet <br /> Kp 1:0"(=2 8+:0;0671ogICow-00036NtYO <br /> Source:U.S.EPA.1998 <br /> r Fnr chemic, s not hcfrilrin T�hlr.-A-t af.ihe.PRA Marcia( a Permeabibty constant wasrCdculat''ed based-on US.EPA-s Dermal.Exposure Assessment Guidance(199Bj,instead of chaosin naurro of.v <br /> jzom Table A-1 based bn similar for MW and Kow as rcconunendcd�in the.PEA.Manual.. <br /> b. 8.a clue <br /> pombo_basedon,UCLs\phy"chem and abs Page 4 of:18 <br />