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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />with flows in Willow Creek at Creede and in the Rio Grande River at <br />Del Norte. The Willow Creek watershed is adjacent to the Santa Maria <br />wa tershed, is s imil ar in shape and area, and both have a southerly <br />ori entati on. The gagi ng stati on on the Ri 0 Grande at Del Norte provi- <br />des an accurate description of the entire basin yield and indications <br />of droughts, wet years and trends. Since monthly and annual di scharge <br />volumes were necessary, data compiled by the Colorado Climate Center, <br />Department of Atmospheric Science, Colorado State University was also <br />utilized to estimate streamflow (7). The calculated average annual <br />volume of water available at the Santa Maria feeder canal diversion <br />point is approximately 27,000 acre-feet but can exceed 45,000 acre- <br />feet during wet years. <br /> <br />b. Continental Reservoir Inflow <br /> <br />There are no gagi ng stations upstream of Continental Reservoi 1', <br />nor any records of reservoi I' i nf1 ow. The USGS gage on North C1 ear <br />Creek is about 1,000 feet below the dam with no intennediate tribu- <br />taries and no upstream diversion. Flow at the gaging station is regu- <br />lated by Continental reservoir and the outlet. <br /> <br />Historic reservoir storage records are available for Continental <br />Reservoir and were obtained from the State Engineers office. Records <br />prior to 1964 were unavailable, however. The monthly inflow to the <br />reservoir was calculated from the monthly records using the formula: <br /> <br />Net Inflow = Total Outflow + Change in Storage. <br /> <br />IV ~ 5 <br />