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Figure 9 has two photographs , the upper being a view of the Spoil pile ff 3 location, which material was returned to the excavation. The lower photograph shows a drain pipe remnant arid a lesser entry rarnp and terrace on the west sid4 of the excavation. Ero- sion features from rain are obvious . EXCAVAT 1 OId GEOLOGY Figure 10 has two photographs of the partially filled excavation, as of 1 /11/90. The upper view looks north down the main entry rarnp, the lower , an interior view of the excavation looking south. Pooling of rain water can Eye seen (the bottom of the pit is now well above the water table) , along with numerous tires thrown from the spoil piles into the excavation by vandals . The almost flat lying nature of the mediun to fine-grained sands from about -8 ' to -20' g. l . can be seen. laving to slumping caused by the unconsolidated nature of the beds on the north end and sides of the excavation, this bed could not be followed all the way around. The upper view reveals the erosion and slumping of the walls which is occurring. Figure it has two close-up views of the medium to fine-grained, -rev to either reddish-stained or light brown sand, which is des- cribed in the auger hole. borings by GTI and is shown on cross sections 3 & 4, Appendix fl 7 . The sand is found from about 8 to -10 feet below g. l . to 20 to 24 feet below g. l . As seen in the excavation, the bed has a sharply defined top that is more uni- form than that shown on the cross sections . It also has very distinct cross bedding, vvhich is somewhat difficult to see in the photographs. The cross bedding is outlined with very thin layers of f;negrained, black, ferro-rrmagnesium sand. Small cross beds such as :hese are common fluvial deposits . MaNITOR ING WELLS The tops of the three groundwater monitoring wells, installed by GTI , Appendix A-7, are shown in the photographs in Figure A-12. JTO reported that all three wells had been plumbed subsequent to having been sheared during the excavation process. Monitoring well (A11V) I was found to be dry , presurneably owing to soil fall - ing down the pipe. The top of \11C'-3 has beer, replaced and a screw cap added to it. A reference point at each well was established and vertical ]}' leveled using an arbitrary bench mark placed in the asphalt driveway, With an assun-med elevation of W&ISL, taken from Figure .-..... _-.No. .....I ..._These..ele-va-t.i-ons.-.a.re...g.iven.-..o.n...>=iburc Darlene Reuss , DHS, on 1 /5/1990 ,vas contacted by telephone and permission vvas requested to -eater purge the plugged -yell , using Citv of Lodi municipal water . She requested a letter in order that she could present ; t to a meeting on Tuesday, Januziry 8, 12