Laserfiche WebLink
Surface Water Supply Index <br />Year Volume* of <br />water in HUC <br />NEP <br />1999 460,388 76.12 <br />1996 453,066 73.63 <br />1974 440,361 71.14 <br />2015 429,100 <br />Interpolation: <br />70.19 <br />1979 411,037 68.66 <br />1998 396,116 66.17 <br />1993 394,651 63.68 <br /> *Volume = Reservoir Storage + Forecasted Runoff <br />Example Step 3: <br />Interpolate to get the NEP <br />value for this May <br />Use NEP value to calculate <br />SWSI <br />SWSI = + 1.47