Laserfiche WebLink
HydroBase Data: <br />Diversions are reported as continuously monitored st reamflow records and as <br />administrative records by Colorado DWR. C ontinuously monitored streamflow data for <br />Station 09050590 are available for daily and monthly diversions from 1975 through water <br />year 2002. A review of USGS Water Suppl y Papers for years prior to 1975 shows <br />reported diversions for Roberts Tunn el Station 09050590 back through 1964. <br />Administrative data for Structure 3604684 are available for daily and monthly diversions <br />from 1971 through water year 2002. Both contin ually monitored streamflow records and <br />administrative diversion records are avai lable on a daily and monthly basis through <br />Colorado DWR HydroBase. Monthly Robert s Tunnel diversion data maintained by <br />Denver Water is available si nce the tunnel began diverti ng water in July 1964 through <br />2001. <br />Available diversion data for Roberts Tunnel was reviewed an d compared to identify the <br />best available data source (shown in Figure 2) . The preferred set of data identified for <br />Roberts Tunnel was the continuously monitored data for Station 09050590. When <br />compared to the other available inform ation sources, the data at Station 09050590 <br />displayed the following characteristics: <br />The most consistently recorded set of data throughout the period of study, <br />The most complete readily available se t of data throughout the period of study <br />and in the future, <br />Continues to be operated as a re cording device through present. <br />Annual Diversions for the 1964 to 2002 period of operation: <br />RobertsTunnel.doc 5 of 10 <br />