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Li <br />0 • <br />May 28, 1987 Project 116-1. <br />immediately transferred to an ice chest containing frozen blue ice, <br />and transported to California Water Labs, in Modesto, at the end of <br />each day. <br />The capped Shelby tubes, containing soil samples, will be transferrer <br />to Terratech, Inc. for permeability testing. <br />3. The boreholes that are not intended for permanent vadose monitoring <br />wells will be filled with cement grout. The grout will be pumped <br />through a tremie pipe that is set within five feet of the bottom of tr <br />borehole until grout appears at the ground surface. Lysimeters will I <br />installled in the boreholes that are intended for permanent vadose zor, <br />sampling. <br />4. The pore water will be extracted from the soil core by the following <br />methods: <br />EXTRACTION METHOD ANALYSES <br />----------------- ------------------------------ <br />EPA Method 5030 <br />Volitile Organics <br />EPA Method 3050 <br />Antimony, Arsenic, Barium, <br />Beryllium, Cadmium, Calcium, <br />Chromium, Cobalt, Coppper, <br />Iron, Lead, Manganese, <br />Molybdenum, Nickel, Potassium, <br />Silver, Sodium, Thallium, <br />Vanadium, Zinc, and Selenium <br />EPA Method 7471 <br />Mercury <br />EPA Method 8080 <br />Lindane, Methoxychlor, Toxaphene <br />EPA Method 8015 <br />2-4,D, and 2,4,5 -TP Silver <br />EPA Method 8040 <br />Phenols <br />EPA Method 9045 pH <br />The grade over trenches 1,2,3, and 4 will not be finalized until after the <br />revised closure plan for the Class II -1 area has been approved by the <br />Regional Water Quality Control Board, Central Valley Region, and the <br />Department of Health Services. Since the new leachate collection system <br />- 2 - <br />