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KLEINFELDER TABLE OF CONTENTS (Cont.) !Qh ) er Page 5.3 Ground Water 16 5.3.1 Existing Monitoring System 16 5.3.2 Ground Water Characteristics 17 5.3.2.1 Organic Compounds 17 5.3.2.2 Metals 17 5.3.2.3 General Minerals 18 5.3.3 Discussion of Ground Water Monitoring Results 19 5.4 Surface Water 20 5.4.1 SWAT Sampling 20 5.4.1.1 Volatile Organic Compounds 20 5.4.1.2 General Minerals 21 5.4.1.3 Asbestos 21 5.4.2 May 1991 Sampling 21 5.4.3 Discussion of Surface Water Monitoring Results 22 6 CLOSURE PLAN 23 6.1 Remediation of Surface Soil Contamination 23 6.1.1 Areas Requiring Remediation 23 6.1.2 Methods of Remediation 24 6.1.3 Confirmation Sampling 25 6.2 Closure of Waste Management Units 25 6.2.1 Existing Conditions 25 6.2.1.1 Landfills 25 6.2.2 Proposed Future Land Use 26 6.2.2.1 Building Activities 26 6.2.2.2 Deed Restrictions 26 6.2.3 WMU Cap 27 6.2.3.1 Existing Regulations 27 6.2.3.2 Proposed Cap Configuration 28 6.2.4 Final Grading Plan 29 6.2.4.1 Fill Activities 29 6.2.4.2 Grade 29 6.2.4.3 Settlement 30 6.3 Drainage Plan 30 6.3.1 Background 30 6.3.2 Configuration 31 6.3.2.1 Phase 1 33 6.3.2.2 Phase 11 33 6.3.2.3 Phase 111 34 6.3.2.4 Off-site Assessment and Remediation 34 6.4 Construction QA/QC 34 6.5 Environmental Monitoring 35 6.5.1 Surface Water 35 6.5.1.1 Storm Water Runoff 35 6.5.1.2 Surface Water 35 6.5.1.3 Method of Analysis 35 6.5.1.4 Frequency and Duration of Monitoring 36 6.5.2 Ground Water 37 6.6 Closure Schedule 37 CR14-92-12 Page iv of A 24-220109-1309 Copyright 1992 KteinfeLder, Inc.