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WATER LEVELS IN THE ALLUVIAL AQUIFERS �F THE <br />LOWER S�[JTH PLATTE RIVER BASIN, CaL�RAD� <br />200� <br />By Chuck Rober�s <br />The purpose of this report is #o provide water level data for 79 wells w�thin the Lower South Platte <br />Allu�ium for the period of Spring of 1988 through �he Spring of 2�D1. The data presented in this <br />report is a result of cooperation between well owners, the Central Colorado Water Conservancy <br />Dis#rict, and the Colorado Division of Water Resources. Funding for this prvject is supplied in part <br />from well permit fees collected and managed by the Coforado Division of VIlater Resources as a <br />result of the passage of Senate Bill 2QQ during the 1987 legislative session, <br />The folfowing body of this repor� includes up to 26 water level measurements for each well, for the <br />indicated period in addition to a water le�e! measurement taken at the time of construction of the <br />well, if available. Measurements are usually taken twire yearly, typically in the spring before <br />irrigation pumping commences and in the fall after irrigation pumping has ceased. The <br />measurement �alues in this report are expressed in feet befow ground surface to water surFace <br />and were obtained utilizing an electric sounder de�ice or steel tape. All measurements were done <br />by Di�ision 1 Water Commissioners (DWR} or the Central Colorado Water Conservancy District <br />�CCWC} as indicated for each well. All of the wells are completed in unconsolidated gra�el, sand, <br />silt and c�ay deposits predominantly of allu�ial origin. The line in the main body of this report <br />entitled AQUiFER delineates both the geologic unit and stream reach for each well as explained <br />on page 4. Figure 1 is a GIS generated map shvwing the recorded location of most of the wells <br />measured for this report. The South Platte River system is depicted. The recorded outline of the <br />Sou#h Platte Ri�er allu�ial aquifers is depicted in gold. <br />-1- <br />