Laserfiche WebLink
EXHIBIT I - Soils Information <br />Soil Description <br />Soils at the Pierce North site are described on Sheet 26 of 43 in the Soil Survey of Weld County, Colorado - <br />Northern Part published in 1981 by the Soil Conservation Service. <br />Soils at the Pierce North site include gravelly alluviums (haplaquolls-fluvaquents) associated with the channel of <br />Lone Tree Creek. <br />The site contains Altvan fine sandy loamy (unit 1). These soils are very well drained with moderate wind and water <br />erosion potential. The Altvan soils are suitable for non-irrigated agricultural, typically winter wheat. Altvan soils in <br />the area are used for rangeland pasture where livestock are managed to prevent overgrazing. <br />The site also contains Bankard loamy fine sands (unit 12). Bankard loamy fine sands are excessively drained, <br />typically are found in floodplains. Wind erosion potential is high. The Bankard soils are suitable for non-irrigated <br />rangeland pasture where livestock are managed to prevent overgrazing. <br />The 1981 soil survey identifies the areas of Altvan fine sandy loamy as good for roadfill material but too sandy for <br />expectation of gravel deposits. The 1981 soil survey identifies the areas of Bankard similarly although Weld <br />County's experience at the adjacent Pierce pit in Section 7, T8N, R65W, is that sufficient larger gravel deposits do <br />exist in the subsurface to provide suitable road base material. <br />Top soil at the Pierce North site is sparse and very thin, typically less than 6 inches thick. <br />MADAVE B\Pierce North\DMG permit\Exhibits-Revl.doc 8/21/2009