Laserfiche WebLink
<br />"'l",'l193 <br />) ___, ~1 .J. . <br /> <br />- 4- <br /> <br />The records of the four reservoirs show an average annual discharge <br /> <br />of 77,000 acre-feet out of the 216,000 diverted from the river. <br />The follo~1ing table is a sUllnnary of these storage operations. The <br /> <br />large losses are mostly seepage returns to the river, adding to the supplies <br />to the systems below. <br />These reservoirs may be of more value to users down the river than <br /> <br />to the people who built and paid for them. <br />Capacity Diversions Discharge % Cap. <br /> <br />% Div. <br /> <br />- , <br />Riverside 57,500 93,100 * 37,310 65 40 <br />-,- " <br />I!Jnpire 37,700 68,800 15,600 40 23 ,; <br /> " <br />Jackson L. 35,600 39,900 22,500 63 56 ;, <br />Bijou No. 2 9,200 14,700 1,600 17 11 : <br />, ' <br />TOTAL 140,000 216,500 77.000 55 36 ' ::. <br />* Storage Only Loss 139,500 45 64 ," <br /> <br />Adding the 206,000 acre-feet of direct use diversions to the 77,000 <br /> <br /> <br />of reservoir discharge, we get 263,000 acre-feet as the average annual <br /> <br /> <br />gravity supply to the 95,000 acres under the ditches, a headgate average of <br /> <br />about 3.0 acre-feet per acre. Delivery losses are heavy. <br /> <br />In the 12 ditches or systems they vary from 10 or .15% to 50% or more <br /> <br />under poor conditions in the Riverside and Bijou systems. <br /> <br />Pump discharges from the wells on the 35,000 acres above the ditches <br /> <br />vary from less than an acre-foot per acre in the upper tributary valleys to <br />2 to 3 acre-feet nearer the main valley. Assuming an average of 2 acre-feet <br />would mean 70,000 acre-feet annually. Also, the hWldreds of wells supplying <br />supplemental lfater on lands under the ditches probably utilize an equal <br /> <br />amount of ground water in an average season. <br /> <br /> <br />I,' <br /> <br /> <br /> <br /> <br />..1, 1 <br /> <br /><., ,'; ",~"",-k..i...~'''&':,^'N2_'-'iIt. .-"~~,, b~;;<l;~}~/ <br />