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3 <br /> 4) Cone Penetration Tests— Cone Penetration Test (CPT) borings were advanced at <br /> three of the proposed injection points and logged to determine the optimal <br /> placement of injection rod screen intervals. A water pressure test was conducted at <br /> three depth intervals at each of these three CPT locations... <br /> 2 PERMANGANATE INJECTION <br /> In preparation for the in-field pilot study: <br /> • Extraction well EI-1 was turned off in August 1999 so that the injected KMn04 could <br /> reside within the pore space of the zone targeted for the pilot study. <br /> • KMn04 injection points were determined from existing well logs. Figure A.1-1 shows <br /> the layout of monitoring and injection points. Figure A.1-2 shows a cross section view <br /> of the soil types, monitoring well screen intervals, and the injection point depths. <br /> • The permanganate solution was mixed at approximately 12.6 pounds KMn04 per 100 <br /> gallons of water for a 15 gram per liter (g/L) permanganate solution. <br /> Between August 3 and 6, 1999, approximately 7,400 gallons of 15 g/L permanganate solution <br /> was injected into the Upper aquifer. This is equivalent to a total of 925 pounds of KMn04. <br /> Figure A.1-1 shows the locations of each injection point in relationship to the monitoring <br /> points. Based on the water pressure test mentioned in Section 1.1, the locations and depths <br /> of permanganate injection were selected as follows: <br /> 1-1 1-2 1-3 1-4 <br /> Depth Volume Depth Volume Depth Volume Depth Volume <br /> ft. b g s al ft. b s al ft. b s al ft. b s al <br /> 89.4 - 92.4 598 87.3 609 89 - 92 600 90 - 93 690 <br /> 90.3 <br /> 102.5 - 103 - 100 - <br /> 105.5 605 106 600 99 - 102 605 103 610 <br /> 110 - 113 701 110 - 589 112 - 594 113 - 592 <br /> 113 115 116 <br /> Total 1,904 1,808 1,799 1,892 <br /> Volume <br /> 3 SOIL AND GROUNDWATER CHARACTERIZATION <br /> In addition to incorporating the WPD sampling requirements, IT completed soil and <br /> groundwater sampling to assess baseline (pre-injection) chemical conditions. Wells M-1A, <br /> ED-1, EI-1, EU-1, EE-1, and EW-1 were sampled in establishing baseline conditions. During <br /> the field pilot study, IT sampled for major cations, total dissolved solids (TDS), VOCs, trace <br /> metals, and anions in soils (As, Cr, Mo, Se, U, and V were the trace metals analyzed in soil <br /> samples) and groundwater (Cr, Se, U, and V were the trace metals analyzed in groundwater <br />