RGDSS_NonAg_CU_report - Laserfiche WebLink

Although water from the Closed Basin Project is delivered to the San Luis Lakes Area, it is not included in this analysis. San Luis Lake and Head Lake both are used to help regulate flows for the Closed Basin Project, however, evaporation losses are not generally replaced with project water. The area is served by natural drainage and is not supplied by additional surface or ground water. It is estimated that surface or ground water is supplied to non-agricultural lands within the wildlife boundaries classified as open water, deciduous trees, hydrophytes, heavy vegetation, and non-irrigated meadows in the 1998 Irrigated Lands Assessment Using Satellite Imagery in the Rio Grande Basin of Colorado, Agro Engineering, Inc., July 2000. Therefore, these lands have a consumptive use and loss due to human activities. It is believed that lands classified as medium vegetation, sparse vegetation, and bare ground were not supplied surface or ground water during 1998. 1. Data Collection. As described above, the GIS land classification coverage developed for RGDSS was used to determine the acreage by land type for four wildlife areas known to have surface and ground water supplies. These areas include: • Alamosa National Wildlife Area • Monte Vista National Wildlife Refuge • Russell Lakes State Wildlife Area • Rio Grande Wildlife Area In addition, Blanca Wildlife Area is also known to use water delivered from the Closed Basin Project to maintain wildlife habitat and was included in this consumptive use analysis. Table 13 shows the acreage, by vegetation type, for each area as defined in the GIS coverage. Included in the table is the acreage accounted for in the irrigated acreage category and the total acreage in the wildlife area. As noted, the Blanca area boundary was not available, therefore only a total acreage is reported. C:\Documents and Settings\ckf.DWR\My Documents\AppendA_culoss.doc Septei~bdt~2o'~~099