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<br />1 <br />I <br />1 <br />I <br />I <br />I <br />I <br />I <br />1 <br />1 <br />I <br />I <br />I <br />I <br />1 <br />I <br />1 <br />1 <br />1 <br /> <br />Wind is not a major element of concern. No devastating winds have <br /> <br />caused major damage in this area. <br /> <br />Frost is a major concern in this area. Depending on the type of <br /> <br />winter, the frost zone will vary. A dry, open winter as experienced in <br /> <br />1975-77 allowed the frost to penetrate to t3'-QQ". A winter like 1974-75, <br /> <br />when snow falling in late November left a covering on the ground, allowed <br /> <br />the frost to penetrate to t1'-5". The frost usually lasts from November to <br /> <br />March. Adequate bury depth on the waterline should eliminate the hazards of <br /> <br />freezing. <br /> <br />, <br /> <br />2 <br />