Laserfiche WebLink
towards the northeast at N-230 -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 d_stance of 108 feet Hydraulic head (h) <br /> between extreme contours was 63 15 ft less 62 55 ft or 0 60 <br /> feet Hydraulic gradient is equal to h/L or 0 60/108 = <br /> 0 0056 ft/ft <br />