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<br />Water Supply Reserve Account - Grant Application Form <br />Fonn Revised May 2007 <br /> <br />6. Water Availability and Sustainability - this information is needed to assess the viability and effectiveness of <br />the water project or activity. Please provide a description of each water supply source to be utilized for, or the <br />water body to be affected by, the water activity. For water supply sources being utilized, describe its location, <br />yield, extent of development, and water right status. For water bodies being affected, describe its location, <br />extent of development, and the expected effect of the water activity on the water body, in either case, the <br />analysis should take into consideration a reasonable range of hydrologic variation. <br /> <br />This proposed project will protect the reliable water supplies statewide by minimizing the risk of spread of zebra <br />mussels. Nationwide studies looking at susceptibility to zebra mussels have rated most of Colorado as a high <br />likelihood for invasion based on pH, temperature and salinity characteristics of our water bodies. The Division of <br />Wildlife is working with scientists to conduct a more detailed risk analysis, but based on current information, many of <br />the water basins of Colorado will be susceptible. <br /> <br />In other states zebra mussels have negatively affected the availability and sustainability of water supplies by causing <br />temporary shutdowns of water treatment plants and water transport facilities. There are concerns about mussels <br />requiring extensive shutdowns for maintenance at Parker and Hoover dams in Nevada and California that might be <br />very costly and impact water supply (see attached Bureau of Reclamation Information). The Southern California <br />Water district has had to shutdown and dry out their aqueducts for a week several times in the last year due to mussels. <br />Again maintenance costs have run into the billions for power and water treatment facilities in the Great Lakes region. <br /> <br />This project would help protect reliable water supplies statewide in Colorado. <br /> <br />7. Please provide a brief narrative of any related or relevant previous studies. <br /> <br />This is an emerging issue, so the Response Plans and the modeling analysis studies on this issue for Lake Pueblo are <br />not available yet. There is a multi-agency team that has advised on this strategy for State Parks. This team is writing a <br />rapid response plan that will be available in April of 2008. The team involves local staff and biological experts from <br />State Parks, Division of Wildlife, Bureau of Reclamation, Division of Water Resources, Colorado Water Conservation <br />Board and the US Fish and Wildlife Service. There a large number of studies and plans that have been gathered by <br />the response team from other states and it is based on the best management practices from these other plans and <br />studies that the response for Lake Pueblo has been predicated. <br /> <br />Relevant studies from other states include: <br />. California Aquatic Invasive Species Management Plan, The California Department of Fish and Game, <br />January 20082. <br />. Economic Impact of Zebra Mussels - Results of the 1995 National Zebra Mussel Information Clearinghouse <br />Study, Chmles R. O'Neill, Jr., Great Lakes Research Review Vol. 3, No.1, April 1997 <br />. The Economic Impacts of Aquatic Invasive Species: A Review of the Literature. Lovell and Stone. January <br />2005 <br />. A calcium-based invasion risk assessment for zebra and quagga mussels (Dreissena spp t Whittier, Ringold, <br />Herlihy, and Pierson. Front Ecol Environ 2008; 6, doi: 10.1890/070073 <br /> <br />13 <br />