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SOIL SURVE" I <br />Froure 7—Harvesting sod on Anugo_-Ot loam. 0 to 2 percent siooes. <br />trolled. Control can be accomplished by spraying, cutting, <br />or girdling the trees and by cultivation. <br />This soil has fair suitaoility as building sites and poor <br />suitability for most sanitary facilities. Soil strength is low <br />in the silty mantle but is high in the underlying sandy <br />material. Susceptibility to frost heave is moderate. Spe- <br />cial precautions may be needed when installing roads. <br />streets. sidewalks, and parking areas to prevent damage <br />from frost heave. Sidewalls in the sandy underlying ma- <br />terial have poor stability and may cave in during excavat- <br />ing for foundations or installation of underground utilities. <br />This can easily be prevented with temporary retaining <br />walls. Septic tank absorotien fields function well in this <br />soil. They must be specially designed, however, because <br />the underlying material is rapidly permeable and there is <br />E <br />a hazard of pollution of ground water. Lawns, trees, and <br />shrubs are generally easy to establish and maintain. This <br />soil is a good source of sand and gravel for construction. <br />This soil is in capability suoclass lls and woodland <br />suitability group 2o. <br />498—Antigo silt loam, 2 to 6 percent slopes. This <br />undulating soil is well drained. It occupies low knolls anc <br />broad undulating flats intermingled with depressions on <br />glacial outwash plains. Mapped areas are 10 to 50 acres <br />and irregular in shape. <br />Typically. the suuace layer is very danc grayish brown <br />silt loam about 9 incnes thick. The subsurface layer +s <br />grayish brown and dark graves.-, brown silt loam about <br />