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Jewel Lake Data <br />Low water level <br />Normal high water level <br />Maximum high water level <br />Water <br />surface <br />elevation, <br />feet above <br />MSL <br />Lake <br />surface <br />area, <br />acres <br />Maximum <br />lake <br />depth, feet <br />Estimated <br />lake <br />volume, <br />acre -feet <br />Average <br />annual <br />lake evap- <br />oration, <br />acre -feet <br />Average <br />annual <br />lake <br />seepage, <br />acre -feet <br />Evaporation <br />and <br />seepage, <br />acre -feet <br />6258.89 <br />5.7 <br />6.0 <br />17.1 <br />14.3 <br />2.9 <br />17.1 <br />6261.37 <br />6.8 <br />8.5 <br />28.9 <br />17.0 <br />3.4 <br />20.4 <br />6264.22 <br />7.9 <br />11.4 <br />44.9 <br />19.8 <br />4.0 <br />23.7 <br />Tributary drainage area = 112 acres <br />Average annual runoff = 3 inches /year (from USGS National Atlas) <br />Average annual runoff = 28.0 acre -feet per year <br />assumed <br />radius <br />281.1292 <br />307.0598 <br />330.965 <br />