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Technical Revision (TR01-10) Adequacy Responses <br />Page 5 <br />Culvert 18A - Culvert has been excluded: will be removed during initial construction. <br />15. The second paragraph on page 2.05-87 references The Upper and Lower Coal Stockpile <br />Sumps (UCSS and LOSS) and list the combined capacity of 1.446 ac-ft above their <br />respective principle spillway inverts, and receive runoff from 101.8 acres, or 3.24% of the <br />Little Grassy Creek watershed. Based on the information proposed in the TR-01 <br />application, the information on approved page 2.05-87 is incorrect. Please update <br />Upper and Lower Coal Stockpile Sump information in Section 2.05.6(3) Protection of <br />Hydrologic Balance to reflect proposed information presented in the TR-01 application. <br />Response: Page 2.05.3-87 has been revised. <br />16. The first paragraph on Page 2.05-39 discusses the two new ponds designated as LCSS <br />and LCSS in the approved permit application constructed north of the coal handling <br />structures. This information is proposed to change through TR-01. Please revise or <br />replace the appropriate text to include information of the Upper and Lower Sumps <br />Response: Page 2.05-39 has been revised as requested. <br />17. The proposed Map2.05.3-E2D Upper Sump submitted with TR-01 application is different <br />than the already approved Map 2.05.3-E2D PECOCO POND SPILL WAYRE-DESIGN. <br />The Summary of Revisions/Additions Insertion Instructions presented with the TR-01 <br />application states that the currently approved Map 2.05.3-E2D PECOCO POND <br />SPILL WA Y RE-DESIGN is to be replaced with the proposed Map 2.05.3-E2D Upper <br />Sump. However, the PECOCO POND SPILLWAY RE-DESIGN is required by Rule <br />2.05.6(3). Please re-number the appropriate maps to ensure that the correct maps are <br />proposed to be inserted into the permit application. <br />Response: Map 2.05.3-E2D PECOCO POND SPILLWAY RE-DESIGN will be replaced with <br />PECOCO Pond As-Built. The Upper and Lower Sump maps will be re-numbered. <br />18. The Summary of Revisions/Additions Insertion Instructions presented with the TR-01 <br />application requests the removal of Addendum D-3 from Appendix 2.05.3-E2.D. The <br />information presented in Addendum D-3 is required by Rule 4.05.9(2). Please provide <br />justification to remove this section from the approved permit application. <br />Response: The request to remove Addendum D-3 remains valid. PECOCO pond is not going to <br />be altered. The pond will remain as previously approved for a permanent pond. The As-Built <br />documentation (Attachment 2.05.3-E2.D-1) remains valid. <br />19. The proposed Appendix 2.05-E2.E provided with the TR-01 submittal, references <br />Appendix 2.05.3-E2.A.1 and 2 as the location for the SEDCAD modeling and <br />demonstrations for the revised sump designs with the Emergency Spillway designs <br />provide with the TR-01 application. This information does not provide adequate <br />information as to the Upper and Lower sump designs required under Rules 4.05.6 and <br />4.05.9. The currently approved Appendix 2.05.3-E2.E references approved addendums