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r <br /> Transit Mix Concrete Co. <br /> 444 E.Costilla Street,Colorado Springs,CO 80903 Office: (719)475-0700 Fax: (719)475-0226 <br /> Soils Analysis Results and Seeding Evaluation <br /> Barnhart Pit, M1984-008 <br /> 11-12-2018 <br /> The mine site discussed in this Revision is the Barnhart Gravel Pit. The operation is in temporary <br /> cessation. <br /> The proposed seed mix revision for the Barnhart Pit is based on the successful establishment of <br /> species which were seeded into an overburden/topsoil stockpile at the Pueblo East Pit. The <br /> Pueblo East Pit is adjacent to the Barnhart Pit. <br /> In order to enhance the establishment of the reclamation plant species, TMCC/CMC analyzed the <br /> Barnhart Pit's soil characteristics. Knowing the soil characteristics will help verify if the species <br /> which were seeded into the overburden/topsoil stockpile, (Pueblo East Pit) are compatible with <br /> the Barnhart Pit soils. The soils at the Barnhart Pit and the Pueblo East pit are different. <br /> Therefore the proposed plant species for the Barnhart Pit do not include three plant species <br /> included in the Pueblo East Pit seed mix. We removed Western wheatgrass, Buffalo grass and <br /> Big bluestem which do not appear to be compatible with the Barnhart Pit soils. <br /> The following table only includes those sample parameters which will help determine the plant <br /> species for the Barnhart Pit. It also includes amendment recommendations,based on the soil <br /> analyses. We recommend incorporating P205 into the soil and not applying NO3-N. However, <br /> the reclamation company which submitted a bid for the seeding recommends a slow release <br /> organic fertilizer to enhance the soil organic matter content. <br /> The intent of the slow release fertilizer is to add organic matter("...a rich amount of Humus"", <br /> Specification Sheet, attached) to the soil. The organic fertilizer contains 3.0% slow release <br /> nitrogen, 6.0% P205 and 3.0% K20, along with 10% calcium and 14%humatesl. Given the dry <br /> climate in the Pueblo area, our hope is the addition of a slow release organic fertilizer will <br /> improve the water holding nature of the soil since the soil is a sandy clay loam. <br /> We do not believe there is sufficient nitrogen to produce the typical weed bloom common with <br /> higher nitrogen chemical fertilizers. In commercial chemical fertilizers, the nitrogen content <br /> ranges from 5%to 30+% and they are not generally a slow release product. In addition, we have <br /> a weed control program in place to deal with not only noxious weeds, but also annual weeds, if <br /> they hinder grass establishment. <br /> 1. (A soil humate is"...comprised of Humic Acid and Fulvic Acid, which are proven to build organic matter <br /> in soils, stimulate beneficial microbial activity and Humate is a kev component in building a living soil." <br /> organiclawn.com/services) <br /> 2 <br />