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- <br /> I Problem'Assess'ment'- Feasibility..Stud Re ort • t , <br /> STRONG PROPERTY <br /> I ; 5157 West Business Loop 205, Tracy;California .," <br /> TABLE OF CONTENTS' ' <br /> SECTION PAGE <br /> 1.0. INTRODUCTION AND SCOPE OF WORK . . . . . . . 11 <br /> 2.0: BACKGROUND .. .. . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . , , 1 <br /> ,2.1. REGIONAL GEOLOGICAL/HYDROGEOLOGICAL SETTING. '. . . :.. : ... 1 <br /> I2.2. LOCAL GROUND WATER SETTING 2 <br /> 2:3., DOMESTIC AND MUNICIPAL WELL SURVEY <br /> } ' 2.4: UST REMOVAL . . . ..: . . . . . . . . .i. . . . . . . . ;3 <br /> 3.0.- ASSESSMENT:OF HYDROCARBON-IMPACTED:SOIL AND <br /> GROUND WATER . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . 4 <br /> 4.0.. - SITE CONCEPTUAL MODEL . . . . , . :. . . . . . . . . . . . 5 <br /> 4.1. HYDROCARBON-IMPACTED SOIL :. . . . . .,. ... . . •6 ' <br /> 4.2. HYDROCARBON-IMPACTED GROUND'WATER . . . . . . . . . . . . . . . . . . . . . 6 <br /> 5.0. . POTENTIAL IMPACT ON NEARBY SURFACE AND GROUND WATER.. . .1. . 7 <br /> I <br /> 6:0. SOIL REMEDIATION ALTERNATIVES . . . . . . . . . . . . . . .'. . . . . . . . . . . . . . . 8. <br /> 6.1': •EX-SITU'TREATMENT OF IMPACTED SOIL <br /> '6.1.1. Excavation . . . . . . : . . . . . . . . . . . ... . . . 8' <br /> 6.1.2. Feasibility of Excavation .. . ' . . . . . . . . . . .'. 8 <br /> 6.1.3: Estimated Costs For Excavation, . .r . . ' ' . . . . . . 9 <br /> 6.2:. ' . IN--SITU SOIL BIOREMEDIATION'. . . . . . . . . ... . . . . . . . . . . . . . . . . . . 110 <br /> 6. . ... . . . . . . ... . . . . . . .. . . ....Principles . . . . . . . . 1,0 <br /> r6.2.2. Nutrient Requirements-and Toxicity_ .'.'. . . . 10 <br /> . '6.2.3. Inoculation Wells . . . . . . . . . . . . . 11 <br /> 6.2.4. 'Monitoring Activities . . . . . . 11. <br /> .. 6.2.5. Duration . . . . . . . . '. . . : . . . . . . . . <br /> .- .. <br /> 6.2.6: Feasibility . . . . . . . ... . . . . ... ... ...... . . . . ... . . ... . . . . . . . . . . . . . ... . . ... <br /> 6.2.7.. .Estimated,Costs For In=situ Biorerriediation . . . . . . . . 12 <br /> 6.3 MONITORED NATURAL'ATTENUATION : . . . . . . . . . . 12 <br /> Advanced GMEnvi�onnienW,Inc. <br />