Laserfiche WebLink
<br />i <br /> <br />., <br /> <br />RECEIVED <br />SEP 0 8 1995 <br /> <br />CALPOLY <br /> <br />Colorado Water <br />Conservation Board <br /> <br />CALIFORNIA POL YlEO-rN1C ST ATE UNIVERSITY <br />SAN LUIS OBISPO. CA 93407 <br />Agricultunl Engmeering Depanmczu <br /> <br />IRRIGATION TRAINING and <br />(805) 756-2434 Main office <br />(805) 756-2379 Dr. Charles M. Bun <br /> <br />August 17, 1995 <br /> <br />RESEARCH CENTER <br />(805) 756-2433 Office FAX <br />(805) 756-2429 Stuart Styles <br /> <br />To: <br /> <br />Bob Norman! Ram Dhan Khalsa <br />USBR-GJAO <br /> <br />Charles Bun! Stuart Styleslf; <br />lTRC <br /> <br />From: <br /> <br />Re: <br /> <br />Analysis -of Spills from the Government Highline Canal <br /> <br />The following information in this technical memorandum was generated based on the <br />detailed plan of action in the "ITRC Game Plan" - Objective 3 and 4 (dated 4/17/95). The <br />following describes the objectives: <br /> <br />Objective #3 - V erifv the accuracv of historical soill data. <br /> <br />Objective #4 - Determine how much extra flow rate (and volume) will be necessarY <br />to maintain the Dresent level of service flexibilitv when the new check <br />structures are in olace. <br /> <br />In addition. this memo also evaluated the estimated savings potential by installing additional <br />checks into the Highline Canal. <br /> <br />Analysis: <br /> <br />Attachment A contains the summarY charts of the data sent to the ITRC from the <br />USBR-GJAO, Included are the Government Highline Canal Flows at <br />Indian Wash. GJWUA Water Orders, and Recorded Spills. Minimum, <br />maximum, and average values were calculated. <br /> <br />Attachment B includes the analysis of the spill based on a water balance <br />calculation. The assumed seepage was 20 cfs for the Highline Canal from <br />Indian Wash to Badger Wash. The evaporation was calculated by multiplying <br />the area of the canal (] 60 surface acres) by the daily ETo and by a 1.20 <br />coefficient for open water. The data show a close match between the calculated <br />spill trom the water balance and the recorded spill. <br /> <br />Attachment C evaluates the relationships between water orders and the spills by <br />RIDE for 1992, 4 graphs were generated to illustrate the relationship between <br />precipitation. water orders, and recorded spills. The data was separated into 3 <br />segments to facilitate later analysis, Rides 1-3 were grouped together and rides <br /> <br />-'i.:.. <br />