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' KL E I N F E L D E R <br /> TABLE OF CONTENTS <br /> 1 EXECUTIVE SUMMARY......................................................................................... 1 <br /> 2 SITE SETTING........................................................................................................2 <br /> 2.1. SITE LOCATION ..........................................................................................2 <br /> 2.2. CURRENT SITE USE AND VICINITY CHARACTERISTICS ........................2 <br /> 2.3. GEOLOGY AND HYDROGEOLOGY............................................................3 <br /> 3 BACKGROUND......................................................................................................5 <br /> 3.1. PROCESS DESCRIPTION OF FORMER OPERATIONS ............................5 <br /> 3.2. BACKGROUND ON LIME POND AREA.......................................................6 <br /> 4 ACTIVITIES CONDUCTED...................................................................................11 <br /> ' 4.1. MEASUREMENT OF WATER LEVELS...................................................... 11 <br /> 4.2. GROUNDWATER SAMPLING ................................................................... 11 <br /> 4.3. LABORATORY ANALYSIS......................................................................... 12 <br /> t5 SEMI-ANNUAL RESULTS AND DISCUSSION....................................................13 <br /> 5.1. WATER LEVELS........................................................................................ 13 <br /> ' 5.2. LABORATORY ANALYTICAL RESULTS................................................... 13 <br /> 5.3. SEMI-ANNUAL ANALYTICAL TRENDS (PRIMARY ANALYTES).............. 14 <br /> ' 6 CONCLUSIONS AND RECOMMENDATIONS.....................................................16 <br /> 7 LIMITATIONS .......................................................................................................18 <br /> TABLES and CHARTS <br /> ' Table 1 Groundwater Elevations on Various Dates <br /> Table 2 Concentrations of Selected Constituents in Groundwater <br /> Chart 1 Groundwater Elevations, <br /> Upgradient (MW-5) and on the former Spreckels Site (MW-1/MW-1 r) <br /> Chart 2 Concentrations of Selected Analytes in Groundwater in MW-1 <br /> (11/1992 to 9/2001) and MW-1r (12/2001 to Present) <br /> Chart 3 Concentrations of Selected Analytes in Groundwater in MW-2 <br /> (11/1992 to 9/2001) and MW-2r (12/2001 to Present) <br /> Chart 4 Concentrations of Selected Analytes in Groundwater in MW-3 <br /> (11/1992 to 3/1999) and MW-3r (5/12/2000 to 2/29/2005) <br /> Chart 5 Concentrations of Selected Analytes in Groundwater in MW-5 <br /> (11/1992 to present) <br /> ' Chart 6 Concentrations of Selected Analytes in Groundwater in MW-6 <br /> (7/1997 to 3/1999) and MW-6r (4/1999 to Present) <br /> 20-3978-03.10N715T08R117 Page i of iii <br /> 0 2008 Kleinfelder February 1,2008 <br />