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Second Submittal <br /> can produce higher yields. Metamorphic and igneous rocks do not provide <br /> groundwater in the Project area and will not be penetrated by any proposed <br /> mining activities <br /> • Marine sedimentary rocks are generally poor aquifers in Larimer County. <br /> However, fractured carbonate rocks, which most commonly occur near <br /> major fault structures, can locally provide significant well yields. Marine <br /> sedimentary rocks do not provide groundwater in the Project area and will <br /> not be penetrated by any proposed mining activities <br /> • Wells completed in consolidated and semi-consolidated Tertiary and <br /> Cretaceous clastic deposits can yield up to several hundred gpm. These <br /> deposits will not be penetrated by any proposed mining activities and do not <br /> provide groundwater in the Project area <br /> • Unconsolidated stream alluvium along major stream channels range in <br /> thickness from 5 to 30 feet thick and can locally provide well yields up to <br /> several hundred gpm (Topper, 2003). Properties adjacent to the Site have <br /> shallow groundwater wells completed in alluvium. <br /> LaPorte Area Wells <br /> Local groundwater flow and levels are strongly controlled by the River, irrigation ditches <br /> and agricultural irrigation. In early summer 2017, Telesto sent questionnaires to <br /> landowners and registered well owners in the area requesting information from their wells. <br /> Telesto also offered to measure depths to groundwater in their wells. Of 269 questionnaires <br /> sent, 46 neighbors responded-35 neighbors responded that depth-to-water measurements <br /> could be taken. Of the 35 neighbors, Telesto was able to arrange times to measure 18 <br /> neighbors' wells. Copies of the questionnaires and field notes are included in Appendix A. <br /> None of the wells are used for domestic drinking water and most are used for lawn and <br /> garden watering. <br /> Additionally, Telesto installed 14 monitoring wells on the Site. Monitoring well logs are <br /> provided in Appendix B. Early summer 2017 depth-to-groundwater measurements are <br /> summarized in Figure 3, which depicts the resulting groundwater elevations. Since the <br /> issuance of the first submittal of this report, LRM and Telesto have continued to monitor <br /> depths to water in the Project monitoring wells. Data from this effort are presented in <br /> Figure 4. <br /> Loveland Ready-Mix Concrete 7 Telesto Solutions,Inc. <br /> zui sa i 1 z_gmund,%a,tuay_zndmbnnnal doLx January 2018 <br />