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Transit Mix Concrete Co. <br /> Overall, the fault zone between the West Fault and the East Fault appears to act as a restriction <br /> to groundwater flow from west to east across the fault, although the faults may act to increase <br /> vertical groundwater flow and flow parallel to the north-south fault direction. During periods of <br /> minimal surface water runoff, Little Turkey Creek flows change from being slightly gaining west <br /> of the West Fault to significantly losing east of the fault. By the winter months, Little Turkey Creek <br /> flows are generally not measurable several hundred yards downgradient of the East Fault due to <br /> the creek water being lost as recharge to the groundwater in the sedimentary rocks underlying <br /> the creek. <br /> In the eastern portion of the Ranch property, east of the East Fault, surface water infiltration from <br /> Little Turkey Creek appears to be the primary source of recharge to ground water in the <br /> underlying Fountain Formation sedimentary rocks. This interpretation is supported by <br /> groundwater chemistry data as described in Section 5d. In addition, runoff from affected areas <br /> will flow through sediment basins before being discharged into Little Turkey Creek. Once this <br /> water is diverted back to Little Turkey Creek, Transit Mix will have fully mitigated any possible <br /> impacts on the sandstone hydrological system. <br /> d. Groundwater Chemistry Information <br /> The Quart' aggregate operation will be developed within a deposit of inert granitic rock and no <br /> acid-forming or toxic producing materials were identified during the exploratory drilling and <br /> sampling program; therefore, no release of pollutants to groundwater is expected. <br /> Water quality samples were collected from each of the monitoring well zones to evaluate <br /> groundwater chemistry at the various depths and locations. After each well was drilled and <br /> completed, water was purged from each zone to develop the well before water quality samples <br /> were collected. Samples were collected using micro-purge techniques, and the samples were <br /> analyzed by TestAmerica Laboratory for general chemistry, Colorado Analytical Laboratory for <br /> biological constituents, and Isotech for stable isotopes. In addition, dissolved oxygen, pH, <br /> specific conductance, and temperature were measured in the field during each site visit. The <br /> results are included in Table G-10. For a more detailed discussion on the groundwater quality <br /> data see the Hydro-Logic report included as Attachment G-2. Transit Mix will continue to monitor <br /> groundwater chemistry to evaluate the baseline conditions as discussed in the attached Surface <br /> Water and Groundwater Monitoring Program. <br /> Hitch Rack Ranch Quarry Permit Application <br /> October 3,2017 G-35 <br />