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f <br /> i <br /> By employing the well head elevations and depths to water <br /> In monitoring wells MW-1 , MW-2 , and MW-3, groundwater <br /> elevations were calculated. Groundwater contours were <br /> drawn by interpolation of the groundwater elevations . As <br /> shown on Figure 2 of this report , groundwater flow is <br /> towards the northeast at N-260 -E . <br /> Hydraulic gradient was calculated by drawing a perpen- <br /> dicular line to contours established as described and then <br /> determining the distance on this line between extreme <br /> contours- a distance of 110 feet Hydraulic head (h) <br /> between extreme contours was 63 . 30 ft less 62 . 70 ft or 0 60 <br /> feet Hydraulic gradient is equal to h/L or 0 . 60/110 = <br /> 0 . 0055 ft/ft <br /> I <br />