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TABLE 10 <br />SOIL ANALYTICAL RESULTS - HCID, NWTPH and BTEX <br />AREA 6 <br />Sample HCID NWTPH (mg/kg) BTEX (mg/kg) <br />Identification <br /> Gas Diesel Oil B T E X <br />6-49-16.0* -- 1,000 <21 120 -- -- -- -- <br />6-50-16.0 -- 480 <25 <50 <0.013 OJ2 O.d8 2.4 <br />6-~I-16.0 -- 230 QS <50 <0.00~ 0.2 0.1~ 0.67 <br />6-52-18.0 -- 86 <25 <50 0.011 0.21 0.2~ 0.93 <br />6-53-17.5 -- <5 <25 <50 <0.00~ <0.00~ <0.005 <0.005 <br />6-54-20.0 -- <5 <25 <50 <0.00~ <0.005 <0.005 <0.00~ <br />6-55-18.0 -- 7~ <2~ <50 O.id 1.4 0.92 ~.9 <br />6-~6-20.0 -- ~ <25 <50 <0.00~ 0.006 <0.00~ <0.00~ <br />6-~7-16.0 -- <~ <?~ <j0 <0.00~ <0.00~ <0.00~ <0.00~ <br />Soil Matrix NA 80 ~00 ~00 NA NA NA NA <br />Cleanu Level <br />RBCA Tier 1 NA NA NA NA 0.60 790 ~100 ~00 <br />Volatilization to <br />Outdoors <br />Cleanu Level <br />RBCA Tier 1 NA NA NA NA 20 14,000 ~,700 ~3,000 <br />Trench Worl:er <br />Cleanu Level <br />< = less than <br />-- = Not Anal~~zed <br />mg/kg = milligrams per kilogram <br />NA ° Not Applicable <br />tICID = Hydrocarbon Identitication (Method NWTPH-HCID) <br />~ = Soil removed from sample location durine remedial excavation <br />NWTPH = Total petroleum hydrocarbons (Methods NW'TPH-Gx and NWTPH-0x) <br />BTEX = Benzene, Toluene, Eth~~lbenzene, Xytenes (n1ethod 302I) <br />RE3CA = Oregon DEQ Interim Guidance on Risk-Based Corrective Achon for Pctroleum Relenses (April 1996) <br />Concentrations in Bold print exceed the appropriate DEQ ac[ion level <br />Construction Phase-Remedial Actions Cenwr}~ West Engineerin~ Corporation <br />Courthouse Square 40806-001-27 <br />No~~ember 9. 1999 <br />