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Additional Site Assessment Report <br />Former SAN JOAQUIN COGENERATION <br />17200 Murphy Parkway, Lathrop, San Joaquin County, California <br />(APN 198-120-05) <br /> <br />TABLE OF CONTENTS <br /> <br /> <br />SECTION PAGE <br /> <br />1.0. INTRODUCTION ................................................................................................... 1  <br />2.0. BACKGROUND .................................................................................................... 1  <br />3.0. SOIL PROBE BORING ADVANCEMENT ............................................................ 1  <br />3.1. SOIL SAMPLE COLLECTION ............................................................................ 2  <br />3.2. GRAB GROUNDWATER SAMPLE COLLECTION ............................................ 3  <br />3.3 LABORATORY ANALYSIS ................................................................................ 3  <br />3.4. BORING ABANDONMENT ................................................................................ 4  <br />3.5. EQUIPMENT DECONTAMINATION AND WASTE MANAGEMENT ................. 4  <br />4.0. SURFACE AND CONCRETE SAMPLE COLLECTION ....................................... 4  <br />5.0. FINDINGS ............................................................................................................. 5  <br />5.1. STRATIGRAPHY ............................................................................................... 6  <br />5.2. WASTE CELL DELINEATION ............................................................................ 6  <br />5.3. ANALYTICAL RESULTS OF SOIL AND WASTE SAMPLES - PCBs ................ 8  <br />5.3.1. Surface Samples ......................................................................................... 8  <br />5.3.2. Soil and Waste Samples: 3 Feet ................................................................. 9  <br />5.3.3. Soil and Waste Samples: 5 Feet ................................................................. 9  <br />5.3.4. Soil and Waste Samples: 7 Feet ............................................................... 10  <br />5.3.5. Soil and Waste Samples: 10-15 Feet ........................................................ 10  <br />5.4. ANALYTICAL RESULTS OF SOIL AND WASTE SAMPLES - TPH ................ 11  <br />5.5. ANALYTICAL RESULTS OF WASTE SAMPLES – LEAD AND DIOXINS ....... 12  <br />5.6. ANALYTICAL RESULTS OF GROUNDWATER SAMPLES ............................ 12  <br />6.0. SUMMARY AND CONCLUSIONS ...................................................................... 13  <br />7.0. LIMITATIONS ..................................................................................................... 15  <br /> <br /> <br /> <br /> <br /> <br /> <br />