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Engineering Analytics, Inc. 1600 Specht Point Rd. , Suite 209 1 Fort Collins, CO 80525 970.488.3111 www.En9Analytics.corn <br />Technical Memorandum <br />;To: m K. Havengar From: Clint Brown, P.E. <br />Nate Bolles, P.G. <br />,&illia <br />H Inc Date: M arch 20, 2015 <br />EA No.: 110545 <br />Re: Exhibit B — Site Description <br />Applicant: Lazy H Inc <br />Cc: 7 Rod Baumgartner, Henrylyn Irrigation District <br />C) VEGETATION AND SOIL CHARACTERISTICS <br />Vegetation in the affected area includes a mixture of native grass and forbs. Yucca glauca <br />(soapweed, Spanish bayonet), Buchloe dactyloides (buffalo grass), Opuntia phaeacantha (prickly <br />pear), Calamovilfa longifolia (prairie sandreed), Aristida purpurea (red threeawn), and Lactuca <br />serriola (prickly lettuce) are among the vegetation types present at the site. <br />The soils within the affected land boundary area shown on Exhibit B -1 have been characterized <br />by the Natural Resources Conservation Service (NRCS). The information outlined in this section <br />was obtained from the NRCS' online Web Soil Survey (MRCS, 2015) and the printed soil survey <br />for Adams County (Sampson and Baber, 1974). Four soil units, or series, are represented at the <br />site. These units are comprised of Arents (earthen dam), Blakeland- Truckton association, Sandy <br />alluvial land, Truckton loamy sand. According to the information obtained from the NRCS, 8.2 <br />acres of the area of impacted area was reported as water. Based on review of the information <br />obtained in the NRCS report, the soil information was obtained while the Boot Lake Reservoir <br />was still operational. No surface water is currently located within the impacted area and the dam <br />has been taken out of service_ Soils generally consist of thick layers of sand and loamy sand with <br />varying amounts of silt, sand and gravel. Vegetation is sparse in areas dominant in well- drained <br />sand, with thicker stands of vegetation where loamy sands are dominant. Prior to and during <br />operations existing topsoil will be salvaged and stockpiled to be used during revegetation. <br />Arents (AED) Series <br />The Arents series soils are comprised of earthen fill used to construct the Boot Lake Reservoir. <br />Arents soils are located along the west and north edge of the impacted area and comprise <br />approximately 22% of the total area. <br />Exhibit B.docx 1 Engineering Analytics, Inc. <br />