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This consultant contacted the City of Lodi to obtain a from the aquifer into the sanitary sewer and was deni of contaminated water into the sanitary sewer. SITE CONDITIONS AND THE GROUNDWATE In general, all of the soil borings report the same geolc the water table grade from sandy silts to silty clays to water bearing aquifer begins at forty-five feet below surface. Silty clays are directly below the aquifer and The soils of the aquifer are classified as clean fine gravf contamination is confined to this five-foot aquifer. The S = 0.001 and 0.002 with down slope in the south to s a high permeability.. - _ a Q SCOPE OF WORK It has been determined by .this consultant that the most is by the Pump and Treat Method. To confirm the pos of the aquifer, it is very important to determine the aquifer. Both can be determined by pump draw do duration of eight hours with flow rate and depth to wa will be stored on site for reclamation. scharge permit to pump the contaminated water a permit. The City will not allow the discharge AQUIFER cal characterization of the site. The soils above depth of forty-five feet below the surface. The surface and continues to fifty feet below the depth is unknown. sands. All of the soil borings indicate that the c gradient of the water table is between direction. This aquifer appears to have economical method of reclamation of the property sib lity of a successful Pump and Treat reclamation Permeability and Hydraulic Conductivity of the m test. The pump draw down test will run for a te recorded each hour. Resulting discharge water The scope of this work plan includes a feasibility for thbioremediation of the contaminated pump test water. It is estimated the pump test will generate 2000 o 5000 gallons of contaminated water. PROCEDURE Extraction Well Installation An extraction well is to be installed at the location she diameter well is to be drilled with a hollow stem ai approximately fifty-five feet below the surface. At i spoon sampler. This sample will be analyzed by EPA A six-inch PVC casing will be installed with ten feet -c number three sand filter is to be installed to two feet abo will be placed above the sand filter. Cement grout shall The well is to be developed after the grout is in place. Test Procedure A well pump with a capacity greater than ten gallons to the bottom of the casing. The pump shall be equil flow rate and total volume. The flow rate will be re( hourly thereafter until the end of test period. A w stream at the beginning of the test period and at the Soundings to the groundwater surface shall be taken 2 on the attached site drawing. The fifteen -inch to a depth of five feet below the aquifer or depth a soil sample will be taken with a split [hod 8260B. (see extraction well detail -attached). A the screened casing. A two -foot bentonite plug : placed from the bentonite plug to the surface. minute at seventy feet of head is to be installed with a flow meter that records volume in both .d at ten minute intervals for the first hour and sample will be taken from the pump discharge of the test period. y in all monitoring wells.