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Flatirons, Inc. — Surveying & Engineering <br />Property Description <br />The site is approximately 20 acres in size, and has historically been used for milling <br />purposes. The property is rectangular shaped with each of the four sides being roughly 900 <br />feet in length. There are two distinct areas of the site. The northern one -third of the site is <br />situated on a steep hillside that slopes to the south at 25 to 33 %. The southern two- thirds <br />of the site lay at the base of the hillside and slopes to the southwest at 5 to 10 %. Two metal <br />roofed buildings are situated near the northwest comer of the site, and the Tailings Storage <br />Facility (TSF) is located to the south of the mill buildings. When completed, the TSF will <br />have an impervious liner and be used to permanently store waste material from the milling <br />process. The high point of the site is near the northeast corner and has an elevation of <br />9780, and the low point is situated at the southwest comer at an elevation of 9700. The <br />natural ground slopes to the southwest across the property. <br />The property is generally covered with a healthy, mature pine forest with a poor <br />understory. There is little groundcover, and the groundcover that does exist is widely <br />spaced. Trees have been cut down near mill buildings, Tailings Storage Facility, and road. <br />There is little or no groundcover in areas where the trees have been removed. <br />Access to the site is from US Highway 24 on a gravel and dirt surfaced road across the <br />Uintah Placer. <br />Proiect Description <br />The Union Mill is being developed as a gold and silver mill that will concentrate the metal <br />values in untreated ore processed through the plant. Ore will be imported from offsite <br />sources to the mill for processing. The tailings or waste product from the milling process <br />will be stored onsite in the TSF. The concentrated ore from the mill will be shipped offsite <br />for further processing <br />The project will use the Tailings Storage Facility to retain the site generated storm water <br />runoff from impacted areas. Offsite runoff will be directed around the site, and not allowed <br />to mix with the onsite generated surface runoff. The NRCS method was used to calculate <br />the runoff volumes. <br />Union Mill 4 March 5, 2014 <br />