Laserfiche WebLink
records. This gage is included in the satellite flow monitoring system of the State <br />Engineers Office and Aurora. <br />Conveyance Efficiency: The Pipeline is constructed of concrete and steel pipe, therefore <br />conveyance efficiency through the Pipeline is estimated to be high. <br />HydroBase Data: Diversion records for the Homestake Pipeline deliveries to the South Platte <br />Basin were found, in various states of completeness, at the State (Colorado <br />DWR/HydroBase) and at Aurora offices. No diversion records for South Platte imports <br />were found at the USGS or US Bureau of Reclamation (which operates deliveries into the <br />Homestake Pipeline). The State recorded three years (1981, 1982 and 1999) of <br />diversions for the Homestake Pipeline deliveries upstream of Eleven Mile Reservoir <br />[Station AHOMPLCO (aka 07086300)], three years (2000-2002) of diversions from <br />Station HOMSPICO upstream of Spinney Mountain Reservoir and seven years (1973, <br />1975, 1979-1982) of administrative water commissioner records for Structure 2304490. <br />State records are available on a monthly and daily period. Aurora provided monthly <br />electronic records back though 1989 and provided access to operational records on paper <br />back to 1971. Daily data is understood to be available electronically from Aurora starting <br />in 1989. Aurora is implementing a digitization effort of historic records and daily <br />diversions records prior to 1989, if available in paper form, will likely become available <br />within several years. <br />Available diversion data for Homestake Pipeline was reviewed and compared to identify <br />the best available data source (shown in Figure 2). Based on the long period of record, <br />completeness of the data set throughout the period of study, and availability of monthly <br />data provided by Aurora, the monthly data provided by Aurora is the preferred set of data <br />for Homestake Pipeline prior to 2000. However, since 2000 the data provided by Aurora <br />is consistent with the continuously monitored data for Station HOMSPICO. While the <br />continuously monitored data at Station HOMSPICO does not have a long period or <br />record it is more readily available than data from Aurora and it is available on a daily and <br />monthly basis. For these reasons, the recommended future source of data for Homestake <br />Pipeline diversion records is the continuously monitored data at Station HOMSPICO. <br />Sof10 <br />