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<br />. <br /> <br />. <br /> <br />-3- <br /> <br />divert from the main stem of the Laramie between the LaraDlie-Poudre Twmel am <br /> <br />the confluence of the Laramie River and L::cIntyre Creek. Such effects WGUld <br /> <br />seem to be within tolerable limits. So far as the exporters are concerned, the <br /> <br />only serious loss of water under historical conditions would have occurred in <br /> <br />1934, the year of the most severe drought during the period of record. <br /> <br />Records of the state Engineer's office indicate that diversions from the <br /> <br />Laramie River through the Laramie-Poudre Tunnel commenced in August, 1914. From <br /> <br />that date to December .31, 1921, records of the mean weekly diversions by the tun- <br /> <br />nel are available. For the years from 1922 to date, the daily tunnel diversions <br /> <br />have been recorded. There are similar records of the diversions made by the <br /> <br />Skyline ditch from the West Branch of the Laramie River and other tributaries. <br /> <br />~~so available are the daily flows of the Laramie River at the gage near <br />I <br /> <br />Glendevey, Colorado. <br /> <br />For a 35 year period, from 1915 through 1949, it is possible to determine <br /> <br />the total water supply which has historically been available for transmountain <br /> <br />diversion and for use by certain of the meadmTland ditches diverting from the <br /> <br />Laramie River below the Laramie-Poudre Tunnel. For practical purposes this <br /> <br />water supply is the sum of the recorded flow at the Glendevey gage plus the <br /> <br />combined diversions of the tunnel and the Skyline ditch. <br /> <br />It is also possible, by USing as a basis the relationships for periods <br /> <br />when apparently maximum transmountain diversions were being made, to estimate <br /> <br />with reasonable accuracy the amounts of water which could possibly have been <br /> <br />diverted from the baSin, daily, monthly or seasonally, for any year of the <br />1915-1949 period under the variable water supply conditions whiCh prevailed, <br /> <br />aSsuming nonnal operation and maintenance conditions and existing works. <br />