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District’s estimate compare with a calculation of water available for augmentation from Meridian Lake using the Jensen-Haise method which does reflect consideration for precipitation? The District is considering pumping water up to Meridian Lake from Washington Gulch to firm up the potential water (GEI Consultants, Reconnaissance Investigation, October 30, 1998: and Helton and Williamsen letter of October 17, 2000). The District is also considering enlargement of storage to a total of 823 acre-feet by raising the lake level 20 feet and installing a 15 to 20 cfs pumping station. Is Washington Gulch already over committed? Has the District carefully evaluated availability of water to be pumped back? For example, see the water augmentation application and calculations in Case No. 97CW156 for 6 augmentation ponds upstream in upper Washington Gulch. The District should consider the geologic origin of Meridian Lake. Consultants for the _ District appear to enly have reviewed limited geologic literature in determining what w. the bedrock “mapped as Mancos Shale” and there-are not potential geologic problems Tak Vp auth (GEI Consultants, Reconnaissance Investigation, October 30, 1998). The lake itself is natural and appears to have its origin as a consequence of a large rotational and bedrock slide (see Rodgers W. P. and others, 1974, Guidelines and Criteria for Identification and Land-use Control of Geologic Hazard and Mineral Resource Areas, Special Publication No. 6, Colorado Geological Survey, Denver, Colorado; and Region Seven, 1969, Conference Proceedings - Geologic and Public Problems, Office of Emergency
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