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File No 94342-S&G Page 5 <br /> thoroughly cleaned with Alconox solution and then rinsed with distilled water <br /> All <br /> groundwater samples were placed in appropriate containers placed on ice and transported <br /> to the laboratory under the chain-of-custody <br /> The water generated from the well development was stored in a 55 gallon drum at the site <br /> Based on the results of the laboratory analyses performed on the groundwater sample at the <br /> site, the groundwater can be disposed of at an appropriate disposal facility <br /> 2 3 GROUNDWATER LEVELS RELATIVE ELEVATIONS <br /> AND FLOW DIRECTION <br /> ' On January 25, 1994, the highest point on the casing heads of the three monitoring wells <br /> were surveyed by our firm The assumed reference point for this survey was a point on the <br /> pump-island as shown in Figure 2 of this report The elevation of this point was assumed <br /> as +10 00 Based on the survey and the calculation of the groundwater elevations in the <br /> wells, the direction of the groundwater flow at the subject site has been determined to be <br /> north-northeasterly <br /> The groundwater depth in each well was measured by using a calibrated electric cable with <br /> an alarm indicator, activated upon touching water The measurement from the highest point <br /> on the casing to groundwater in each well was determined to within 0 01 foot A water level <br /> elevation in each well was calculated by subtracting the measured depth to water from the <br /> I tap-of-casing elevation The measured depths, calculated elevations, and groundwater <br /> gradient in the wells are summarized in the following page <br /> ADVANCE SOIL TECHNOLOGY INC <br />