Laserfiche WebLink
<br />000118 <br /> <br />- 4 - <br /> <br />4. Sum of Piedra River, Weminuche Creek, and Williams Creek, at <br />or near Bridge Ranger Station, near Pago$a Springs, Colorado. <br />For the period 1934 through 1936, the water year discharge <br />of the sum of these three streams was estimated from correlation <br />with the Piedra River near Arboles. The Piedra River hear <br />Arboles was in turn estimated as explained below. The monthly <br />discharge values are the same percentage of the annual discharge <br />as the average for the period of record, which extended from <br />October of water year 1936-37, through September; 1940, and from <br />July, 1946 through September, 1949. For the rest of thel'period <br />the annual values were from correlation with!bhePiedra River <br />at Piedra. The monthly values again being the same percentage <br />of the annual as the average for the period of record. <br />5. Piedra River at Arboles, Colorado. <br />Monthly values from October, 1933 through September, 1938, <br />were evaluated by using the average monthly percentage of the <br />recorded annual flow applied to 40 percent of the flow of the <br />San Juan River at Rosa. The 40 percent represents the contri- <br />bution of the Piedra Ri ver, as measured at Arboles, to the San <br />Juan River at Rosa, as determined by the Engineering Advisory <br />Committee of the Upper Colorado River Compact Commission. <br />6. Los Pinos River below Snowslide Canyon near Weminuche Pass. <br />Monthly values from March, 1934 to September, 1934 and <br />September, 1938 through September, 1941 and Octpber 1945 through <br />September 1954 are from the U. S. Geological Survey Water Supply <br />Papers. For the rest of the study period the annual discharge <br />values were estimated from correlation with the Animas RLver <br /> <br />. :L <br /> <br />~;. - <br />