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<br />Preliminary Sand and Gravel Mineral Evaluation e r <br />T r acon <br />29 Acre Parcel -East of Balsam Avenue <br />' Greeley, Weld County, Colorado <br />Project No. 20015242 <br />volume is approximately 11.6. The above referenced quantities are strictly estimated values <br />based upon average thickness of layers, average depth to bedrock and straight-line plan <br />dimensions. These estimates do not account for variations of thicknesses, actual areas of <br />' mining and/or anticipated cut slopes. <br />Variations may be encountered in the field when gravel extraction/mining operations take <br />1 place. Safe distances should be kept from property lines, roads,. and waterways. Since the <br />sand and gravel strata was encountered below the groundwater, temporary dewatering of the <br />gravel pit or use of a drag line will be required to remove the sand and gravel material. <br />Excavation and possibly dewatering of the pit should be pertormed in such a manner as to <br />protect the adjacent properties, roads, railroads and waterways. <br />' GENERAL COMMENTS <br />Variations in overburden and sand and .gravel stratum thicknesses, the quantity of the sand <br />and gravel, as well as the soil and groundwater conditions, may exist between test borings. <br />These variations may not become evident until gravel/mining operations take place. Additional <br />' test borings, test pits, and laboratory analysis may be required prior to the proposed <br />gravel/mining operations to more accurately evaluate the quantity and quality of the granular <br />materials encountered at the site. <br /> <br /> <br />1 <br />A <br /> <br /> <br />