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<br />8 <br /> <br />physical and chemical parameters through the water column, sampling at discrete depths for <br />major ion and nutrient concentrations, and biological sampling for chlorophyll, phytoplankton, <br />and zooplankton at selected stations in the reservoir forebay, main channel, and major tributary <br />arms of the reservoir, Continuous water quality monitors are in place for thermal monitoring in <br />the reservoir forebay and for a broader suite of parameters in the reservoir tailwater, Sampling is <br />conducted from the GCMRC 32; Uniflite limnology vessel, with assistance from the National <br />Park Service and Bureau of Reclamation Upper Colorado Regional Office. <br />The database (WQDB) for Lake Powell and Grand Canyon water quality is nearing <br />completion and being integrated with GCMRC's Oracle database management system system, <br />These data comprise all Bureau of Reclamation, GCES, and GCMRC water quality monitoring <br />information collected since 1965, representing the entire water quality history of Lake Powell. <br />The consolidation and management of these data has made it possible to evaluate the information <br />collected from this long-term effort and make changes to achieve a more efficient program, <br />Revisions in major ion and nutrient sampling, plankton sampling, and inflow monitoring are <br />expected during FY 2004. <br />These data are available for input to the CEQUAL-W2 reservoir model in cooperation <br />with the USBR. Initial model development and calibration is being provided my Amy Cutler of <br />the Bureau of Reclamation (BuRec), Eventually there is the prospect that simulation modeling <br />may replace some of the extensive field sampling effort on the reservoir, Beginning in <br />November 2003, GCMRC will provide monthly web-based updates for water quality conditions <br />on Lake Powell, An annual report of2003 monitoring results is in development. <br />GCMRC receives funding for the Lake Powell Water Quality Monitoring Program from <br />Bureau of Reclamation Operation and Maintenance funds, based on an agreement with the <br />Technical Work Group, Adaptive Management Program funds are not used directly for Lake <br />Powell monitoring, The Bureau provides additional support for model development and <br />technical field assistance, In 2003, Reclamation agreed to provide laboratory analytical services <br />through a service agreement, eliminating the need for GCMRC to contract directly for these <br />services and reducing its direct funding to GCMRC. GCMRC has further reduced salary <br />requirements for Lake Powell as the downstream water quality program has developed, <br /> <br />GCMRC FY2005-2006 Draft Annual Work Plan (November 10,2003) <br />