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Cross-sections A and B on sheet number 1 of 2 were taken from Snowmass <br />Coal Company survey data as shown on sheet number 2 of 2. As shown on <br />• Section A, the maximum section, the toe of the proposed embankment, <br />will encroach to within 10 feet (the maximum encroachment) of the top <br />of the bank of North Thompson Creek, but the elevation of the toe will <br />remain at least 2 feet above the 100-year flood plain. Although much <br />greater than the 100 foot limitation required by the Division under <br />section 4.05.18, this encroachment is necessary due to the extremely <br />limited available space. Stream buffer zone markers will be placed at <br />the downstream toe of the proposed embankment, unless otherwise <br />requested by the Division. <br />Although the specific floodplain that the existing pond is located in <br />was not calculated, the bottom of the pond is located 20 feet above <br />the 100-year floodplain in Section A and 16 feet above the 100-year <br />floodplain in Section B. Because the minimum freeboard for the toe of <br />the embankment is at least 2 feet above the 100-year floodplain, the <br />outslope of the embankment will not need to he protected from potential <br />floods. <br />r 1 <br />L J <br />Reclamation of the refuse disposal pond is discussed in Section 4.4. <br />The refuse pile was inspected during construction under the super- <br />vision of, and certified after construction by, a qualified registered <br />professional engineer. Certification of the constructed refuse pile <br />will be forwarded to the Division immediately following final <br />reclamation. <br />n <br />U <br />4-23 <br />