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i ~ . <br />• <br />Letter of June 7, 1982 <br />Item 4. <br />Anti-seep collars will be used along conduits that extend <br />through the embankment on all new ponds having a height of more <br />than 10 feet at the bottom of the emergency spillway in accord- <br />ance with Rule 4.05.6(10)(c). <br />We cannot find any reference to cut off trenches in the <br />regulations and do not feel they are necessary for the small <br />volume ponds to be constructed. Therefore, cut off trenches <br />will not be used unless they are requested by the Division. <br />• <br />. ~,~~ <br />~\~'~{w QyCI <br />~'` <br />~~ <br />