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Ms.Megan Gutwein
<br /> August 16,2019
<br /> Page 6 of 25
<br /> Table 3
<br /> Historically Irrigated Acreages Identified on Aerial Photographs
<br /> Estimate of Irrigated
<br /> Aerial Photograph Image Source Area (acres)
<br /> Diamond A aerial, 9/4/1988, infrared earthexplorer.usgs.gov 1,088.65
<br /> Diamond A aerial, 8/16/1993, black and white earthexplorer.usgs.gov 1,055.64
<br /> Diamond A aerial, 8/1/2009, color earthexplorer.usgs.gov 1,092.41
<br /> Diamond A aerial, 09/2015, color earthexplorer.usgs.gov 1,100.94
<br /> Schweizer aerial, 9/4/1988, infrared earthexplorer.usgs.gov 201.68
<br /> Schweizer aerial, 8/16/1993, black and white earthexplorer.usgs.gov 205.92
<br /> Schweizer aerial, 8/1/2009, color earthexplorer.usgs.gov 204.73
<br /> Schweizer aerial, 09/13/2015, color earthexplorer.usgs.gov 212.20
<br /> Mameda aerial, 9/4/1988, infrared earthexplorer.usgs.gov 149.43
<br /> Mameda aerial, 7/25/1993, black and white earthexplorer.usgs.gov 155.40
<br /> Mameda aerial, 8/1/2009, color earthexplorer.usgs.gov 147.58
<br /> Mameda aerial, 09/13/2015, color earthexplorer.usgs.gov 157.57
<br /> Groves aerial, 9/5/1988, infrared earthexplorer.usgs.gov 258.37
<br /> Groves aerial, 7/25/1993, black and white earthexplorer.usgs.gov 250.91
<br /> Groves aerial, 8/1/2009, color earthexplorer.usgs.gov 186.77
<br /> Groves aerial, 8/25/2015, color earthexplorer.usgs.gov 262.36
<br /> Mayhoffer aerial, 9/5/1988, infrared earthexplorer.usgs.gov 30.93
<br /> Mayhoffer aerial, 7/25/1993, black and white earthexplorer.usgs.gov 30.60
<br /> Mayhoffer aerial, 8/1/2009, color earthexplorer.usgs.gov 32.44
<br /> Mayhoffer aerial, 8/25/2015, color earthexplorer.usgs.gov 35.19
<br /> Irrigated acreages for any study period years after the final aerial photograph of any Participating
<br /> Farm were assumed to be equal to that year. For example, the Groves Farm irrigated acreages for
<br /> 2016 and 2017 were set at 35.19 acres, which is the 2015 acreage for that farm. Irrigated
<br /> acreages for years between aerial photographs were prorated based on the acreages for the years
<br /> prior to and following that period.The resulting acreages were entered into the data tabs of the LFT
<br /> for each of the Participating Farms.
<br /> D. HCU for Shares and Acreage to be Fallowed During the Pilot Project
<br /> The number of acres to be fallowed on each farm and the associated number of shares to fallow
<br /> under the Pilot Project were determined based on discussions with the participating farmers and
<br /> range from 15%to 100% of the shares of each the Participating Farms (see Table 4 for additional
<br /> detail). Colorado Springs may use up to approximately 1,930 acre-feet of water each year for up to
<br /> three years during the 10-year term of the Pilot Project to provide water to replenish water supplies
<br /> during or after a drought.The 1,930 acre-feet includes consumptive use of farm headgate deliveries
<br /> and depletions resulting from deep percolation that historically returned to the Arkansas River after
<br /> the irrigation season as lagged return flows, which will be replaced by Colorado Springs using their
<br /> Martin and Wood Water Consultants,Inc.
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