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ejaV I'M <br /> .. <br /> JI7E ASSESSNER UOQK PLAIT <br /> 1 Shelt Station 420 11. Kettteman Lane <br /> Lodi, california <br /> Regis Project No. 89.013 <br /> page i <br /> ^' TABLE OF CONTENTS <br /> 1.4 INTRODUCTION . . . . . . . . . . . . . . . . . . . 1 <br /> 1.1 Purpose . . . . . . . . . . . . . . . . . . . . . . 1 <br /> t1.7. Scope . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> : :2.0 BACKGROUND INFORMATION . . . . . . . . . . . . . . . 2 <br /> 2.1 Site Location . . . . . . . . 2 <br /> 2.1.1 Water Well Information . . . . . 2 <br /> 2.2 Previous Work . „ . . . . . . . . . . . . . . 5 <br /> 2.2.1 Soil Conditions . . . . . . . . . . . . . . 5 <br /> 2.2.2 Groundwater Conditions . . . . . . . . . . 5 <br /> 3.0 WORK PLAN . . . . . . . . . . . . . . . . . . . . . . 5 <br /> 4.0 METHODS . . . . . . . . . . . . . . . . . 8 <br /> 4.1 Soil Borings 8 <br /> 4.1.1 Soil Sampling . , . 9 <br /> 4.1.2 Soil Classification . . . . . . . 9 <br /> 4.1.3 Soil Sample Screening: Portable <br /> --1 Photo,ionization Detector Method . . . . . . . 10 <br /> 4 ` 4.2 Ground Water Monitoring Wells . . . . . 10 <br /> 4.2.1 Monitoring Well Gravel. Pack and Slot Size <br /> � . Selection . . . . . . . 10. <br /> 4.2.2 Monitoring Well Development 12 <br /> I 4.2.3 Ground.Water Sampling . . . . . 12 <br /> 4.2.4 Petroleum Product . . . . . . . . . 12 <br /> i r7 . <br /> 4.2.5 Groundwater Well Elevation Survey . 12 <br /> 4.3 Laboratory Analysis . . . . . . . . . . . 13 <br /> 4.3.1 Soil Sample Analysis . . . . 13 <br /> } 4.3.2 Groundwater Sample Analysis . . . 13 <br /> F 4.4''4uality Assurance Plan . . . . . . . . . .. . . . . 13 <br /> 4.4.1 General Sample Collection and Handling <br /> y - Procedures <br /> 4.4.2 Sample Identification and Chain-of-Custody <br /> Procedures . 13 <br /> e 4.4.3 AnalyticalQuality Assurance . . . . . 14 <br /> "? 4.4.4 Miscellaneous Checks of Accuracy . . . 14 <br /> 5.0 SCHEDULE . . . . . 15 <br /> - 1-- 6.0 -REMARKS/SIGNATURES .. - --- - - 16- - -- <br /> ! 7.0 REFERENCES . . . . . . . . 17 <br /> cJ. <br />