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November 16,2005 <br /> NOA Project Number:E05120B <br /> • TABLE OF CONTENTS <br /> LIMITED PHASE II ENVIRONMENTAL SITE ASSESSMENT <br /> AND SUMMARY OF PROJECT TO DATE <br /> 1.0 INTRODUCTION . .- . . . • . . . .. ... ... . . .. . . . .. . . .. . . . . • . . , . . . . . . , . . . . . .. .. . 1 <br /> 1.1 Site History . . . . . . . . . . . . . . . . . . . .. . . . . . . . ... _ _ _. . . . . . . . • .. . . . . , . ..- 1 <br /> 1.2 soil _ _ .. . . . ..... . • . , . . . , .. , . . . . . ,. . . . . .. . .. . . . . . - . . . ,. . - . . . . . . . . . . . 2 <br /> 1.3 Geology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. - - . . .• . . . . . . . . ... . . . . . . . 3 <br /> 1.4 Topography . . . . . , . . . •. . . . . . . . . . . . . . .. .. . . . .. . . . . . . . . . . . . . . . . . . .. . . . .. . 3 <br /> 1.5 Regional Groundwater . . 3 <br /> 2.0 WORKPLAN,PERMITS,AND SAFETY . . . .. . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . ... . . 3 <br /> 3.0 SURFACE STAINING INVESTIGATION . . .. . - 3 <br /> 3.1 Sample Locations and Collection Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 3 <br /> 3.2 Sample Analysis Methods . . . . . 4 <br /> 3.3 Analytical Results .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . 4 <br /> 3.4 Discussion of Results . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> 4.0 MANURE IMPACT INVESTIGATION . . - , . . . . , . . . - . , . . . . . . . . . . . . . . 6 <br /> 4.1 Boring Locations and Methods . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 6 <br /> 4.2 Depth to Groundwater . . . . . . . . . . . . . . .. . . . 6 <br /> 4.3 Sample Collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 <br /> 4.4 Grouting of the Boxings . . . . 7 <br /> 4.5 Sample Analysis Methods . . . . . . . 7 <br /> 4.6 Analytical Results . . . . . . . . . . . . . . .. . . . . . . . . 7 <br /> • 4.7 Discussion of Analytical Results 8 <br /> 5.0 ADDITIONAL FINDINGS . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 8 <br /> 5.1 Communication with SJC EHD . . . . . . . . . . . . . . . . . . 8 <br /> 5.2 Communication with Regional Water Quality Control Board . . . . . . . . . . . . .. . . . . . . . . . . 9 <br /> 5.3 File Review at SJC EHD . . . . . . . . . . . . . 9 <br /> 5.4 Calculation of Impacted Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 <br /> 5.5 Review of Clayton Group Services Preliminary Pipeline Findings 10 <br /> 5.6 Welland Septic . . . . . . 11 <br /> 5.7 Lead-Based Paint and Asbestos-Containing Materials . . . . . . . . . . . . . . . . . . . . . . . . . 11 <br /> 6.0 DISCUSSION AND RECOMMENDATIONS i l <br /> 6.1 Identified Findings . . . . . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 <br /> 6.2 Recommendations . . . 12 <br /> 7.0 LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 <br /> 8.0 SIGNATURES OF ENVIRONMENTAL PROFESSIONALS . . . . . . . . . . . . . . . .. . . . 13 <br /> PLATES <br /> Plate 1:Vicinity Map <br /> Plate 2: Surface Soil Sample Locations and Detail of Residential/Dairy Structure Area <br /> Plate 3: Site Map with Groundwater Boring Locations <br /> APPENDICES <br /> A-Boring Logs <br /> B-Analytical Laboratory Sheets and Chain-of-Custody Documentation <br /> C-Select Documents From Dairy File at San Joaquin County Environmental Health Department <br /> • <br />