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. . . Water Project Construction Pro2ram - Project Data Non-Reimbursable Investment Applicant: Central Colorado Water Conservancy District - Well Augmentation Subdistrict (WAS) Project Name: Estimation of Deep Percolation from Irrigation to the South Platte Alluvial Aquifer in Northern Colorado Project Type: Study County: Weld, Morgan, Adams Drainage Basin: South Platte Basin Water Source: Varies Total Study Cost: $308,000 CWCB Investment: $150,000 (requested) Funding Sources: CWCB Construction Fund, USGS, CCWCD Type of Applicant: Water Conservancy District Median Household Income: NI A Funding is requested to study deep percolation from irrigation along the South Platte River, to be conducted by the Central Colorado Water Conservancy District (CCWCD) and the U.S. Geological Survey (USGS). The purpose of the study is to develop an improved understanding of return flow to the tributary system through irrigation percolation, particularly as it pertains to well augmentation requirements. The proposed study will use bromide tracing and water-level monitoring to improve estimates of recharge beneath irrigated fields at three farmland test sites in the CCWCD. Sites will be selected to represent three different irrigation methods (sprinkler, flood and drip irrigation) so that recharge comparisons can be made among the different methods. The total project cost includes $200,000 for study costs and $108,000 (normal contract lease value) of lands to be committed to the study by members of the CCWCD Well Augmentation Subdistrict. t:Iarns...., II e ". WELD : 25 -" 'I.. 4 FT, MORGM M:lrg:an Commur CoII.~. FORT MORGilN MUSEUM . MORGAN ) 5 , i Ho\'l '-~-'--_._'_. ._.~-_.~.