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1.0INTRODUCTION Asphalt Specialties Co, Inc. contracted Weiland, Inc. (WI) to complete the well application/temporary substitute supply plan (TSSP) for the Turnpike Mining Resource operation (TMR). The property has been historically used for grazing land and gravel mining. The property owns water rights, however native water rights have been dedicated to an agreement with the district 6 water users. 1.1 LEGAL DESCRIPTION AND SITE LOCATION The legal description of the permit area is Section 31, Township 2N, Range 68W. The project area includes that part of section 31 as shown in the site location map (Figure 1). 1.2 JUSTIFICATION AND NEED Asphalt Specialties Co, Inc. provides services that utilize gravel for construction of roads and development of the infrastructure of Colorado. Their need is to excavate gravel at the property described to keep up with their demand for services. 1.3 PROJECT DESCRIPTION The life expectancy of the TMR is 4 years. Mining will. begin in April of 2004. Operations within the permit area will include earthmoving, extraction of gravel below the water table and processing. Approximately 500,000 tons are to be extracted from the TMR each year. The gravel extraction process is expected to follow a similar annual schedule to that given in Appendix I, AI.1. The pit sizes for ach of the 5 years are given in the water configuration map (Figure 2). Cell 1 will expand the previously mined pit (see Figure 2) and in doing so will dewater the existing pond. Cell 1 is contiguous with the pond area and the pond area occurs within 100 ft of Boulder Creek. Cell 2 and Cell 4 will also occur within 100 ft of Boulder Creek. Due to pit proximity to the river, no lagged depletions have been calculated. Cell 3 does occur at a distance greater than 100 ft, however this excavation proposes to only expose .1 acres of water for a short period of time and therefore lagged depletions are considered negligible. The project proposes to dewater the active excavation through excavation of dewatering trenches to a width of 4 feet. A turbine pump mounted on a float is used pump the trench discharging to Boulder Creek. Depletion to Boulder Creek will occur as the result of surface water evaporation from groundwater exposed in the dewatering trenches and settling ponds, from water taken with the mined product and water used for dust control.