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Rule 2.05.3(4) Operation Plan -Ponds and Impoupdments <br />For the coal loadout pond, SEDCAD+ elevations do not agree with Figure EX 15-14 <br />edimentation Pond Summary. Please review and correct as necessary. <br />~~ Res_p_onse -Figure Ex. 15-14 has been revised to agree with Sedcad analysis. <br />Pond 002 SEDCAD+ indicates a low hole at 6875.5 feet. Exhibit 15-14 indicates a low hole <br />y at 6872 feet. Please review and correct. <br />Q P' <br />Response -Pond 002 has been redesigned to reduce cut azea. New Sedcad printouts are attached. <br />Figure Ex.15-14 has been revised to agree with Sedcad analysis. <br />11 For fill 5 pond, the barrel diameter is shown as 36 inches on Exhibit 15-14. The <br />~~~ corresponding SEDCAD+ run uses 32 inches. Please review and cottect. <br />Response -Fill Pond 005 has been redesigned. The new Sedcad printouts are attached and <br />Figure Ex. 15-14 has been revised to agree with these analyses. <br />12 Rule 4.05.9(7)(d) requires 1.0 feet of freeboazd between the top of the settled embankment <br />and the emergency spillway flowing at design depth. Many ponds (7-1 and 005 are examples) <br />do not meet this requirement. Please review all designs and correct as necessary. <br />• Response -Revisions have been made to some emergency spillway designs, and for other <br />ponds, the dam crest has been raised. Besides those listed elsewhere in this section, design <br />changes have been made for the following ponds: <br />~ond 003 (Fill 3) Fill Pond 007 Pond 7-2 <br />Pond 004a Pond 5-1 Pond 7-3 <br />Pond 009a Pond 6-1 Pond 7-4 <br />New Sedcad printouts aze attached, and cottesponding revisions have been made on Figure Ex <br />15-14.. <br />13. For pond 006a, SEDCAD+ uses a low hole elevation of 6968 feet. Ex 15-14 shows a low <br />`/ hole of 6962. Please review and correct as necessary. <br />Response -Pond 006a has been redesigned. New Sedcad printouts are attached and appropriate <br />changes have been made on Ex. IS-14. <br />14 Pond 008 SEDCAD+ elevations, barrel diameter, and other information are significantly <br />©l~- different than the design information depicted on Ex. 15-14. Please review and correct. <br />Response -Pond 008 has been revised and new Sedcad printouts are attached. Figure Ex. 15-14 <br />has been revised to show correct information <br />C~ <br />~..'~~ <br />i~iY~° <br />