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<br />0:)1990 <br /> <br />Irrigation Depletion Request = <br /> <br />numb., of IR Hue COmbirtati01U <br />L Acres(i) * RateU) * [1.0 + incidentalLassRate] + SprinklerEvaparatian(i) <br />;=-1 <br /> <br />where <br /> <br />j is unit of HUC combination 1. Sprinkler evaporation rate is diversion specific. <br />Rate is shorted rate for validation model. Rate is non shorted rate for study models. <br /> <br />Diversion Request = huc yercent * historic flow for validation model whether non irrigation or <br />irrigation. <br /> <br />Non Irrigation Diversion Request = hucyercent * Minimum(Capacity, Depletion Request/Monthly <br />Efficiency) <br /> <br />Irrigation Diversion Request = hucyercent * Minimum (Capacity, Depletion Request I Minimum <br />Efficiency) <br /> <br />Hucyercent is percentage of diversion's flow provided by depletion category. <br /> <br />R1verWare Water User Depletion = <br /> <br />numb., of Divemonr MaPJMd To Water User <br />L Depletion(i) <br />;=} <br /> <br />R1verWare Aggregate Diversion Depletion = <br /> <br />numb., of Waf., u&~ <br />L Depletion(i) <br />i=l <br /> <br />Database Details <br /> <br />To support computation of depletions by RiverWare, several database tables were developed. The <br />database files obtained from Colorado were used as a starting point. These data consisted of one file <br />that contained various descriptive data such as water district number, diversion identification, use <br />code, name, county number, and legal description of head gate location. Acres for all diversions <br />were obtained by Reclamation. A water rights file obtained from Colorado added decree date, <br />estimated capacity, and direct flow water right capacity to the database. All of this data is contained <br />in table Sta _all. The other data consisted of a time series of diversion records and was placed into <br />table Man all. <br /> <br />DRAFT - SJRIP Hydrology Model Documentation <br />June 18, 1999 <br /> <br />51 <br />