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<br />N <br />.... <br />en <br />CJ"') <br /> <br />x Definitions of Terms <br /> <br />Streamflow is the discharge of water that <br />occurs in a natural channel. <br /> <br />Suspended sediment is the sediment that at <br />any given time is maintained in suspension by <br />the upward components of turbulent currents or <br />that exists in suspension as a colloid. <br /> <br />Total dissolved solids (TDS) is the total <br />amount of dissolved material, organic and <br />inorganic, contained in water. The actual <br />measure ofTDS may be made using numerous <br />methods: evaporation at 105 .C, evaporation at <br />180 .C, or sum of ionic constituents Oess some <br />portion of the bicarbonate fraction). The method <br />currently used, sum of constituents less <br />approximately half of the bicarbonate fraction, is <br />considered, by the U.S. Geological Survey to be <br />consistent with measurements made using the <br />180 .C evaporative technique. <br /> <br />Totalsa1t load is the total quantity (mass) of <br />dissolved solids passing a given point during a <br />given time. The load is calculated as a function <br />of concentration and discharge. <br /> <br />Transbasin diversion is the total amount of <br />water diverted out of the Colorado River Basin. <br /> <br />Virgin flow is the historical flow at the point of <br />measurement corrected for the effects of <br />manmade developments in the drainage basin <br />above the point of measurement. <br /> <br />Water year is the 12-month period, October 1 <br />through September 30. The water year is <br />designated by the calendar year in which it ends <br />and which includes 9 of the 12 months. <br />