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subsequent bond release. To avoid confusion, we do not show any exploration holes on the Gob Vent Borehole map. J) GVB- LW- 18 -09B and 18 -09C are listed twice on page 7 of the summary sheet. Both wells are listed as having the same road disturbance and pad disturbance as 18 -09 but the Northing, Southing, Survey and Elevations are all different. Also, these wells are listed as not drilled but are shown on the map as existing. Please clarify. Response: the table has been corrected. The 09B and 09C were two directional holes that were permitted but never drilled at the 18 -09 pad. 18 -09 was drilled and completed. The information presented is consistent with the details for the 18 -09 vertical borehole. g) The following wells are listed in the summary sheet as `not drilled' but are labeled on the map as existing or reclaimed: GVB- LW- 16 -07D, - 16 -18B, - 18 -05B, - 19 -08B & C, - 17 -06D, - 17 -08D & E, -18- 07C & D. Please clam. Response: Often times, as noted above, directional boreholes were permitted, but later it was determined that they were not needed. Often they are co- located on a drill pad with one borehole that was drilled and subsequently reclaimed. The pad symbol will reflect the status of the pad, while the summary sheet reflects the status of the borehole. h) Well GVB- LW- 18 -07B is listed in the summary sheet as the same road disturbance and pad disturbance as - 18 -05. These wells are shown in different locations on the map. Please clarify. Response: 18 -07B is located at 18 -07. The summary sheet has been corrected. 1) The Northing coordinates for wells GVB- LW- 18 -03B through GVB- LW- 19 -08C on pages 7 and 8 have seven digits. All the other Northing coordinates have six digits. Please correct this typo. Response: The summary sheet has been corrected. j) Wells GVB- LW- 18 -06, - 18 -07, -18 -08 and -18 -09 are shown as both Existing and Proposed on the map. Please correct the map. Response: The map has been corrected. 2. The current permit and coal lease boundaries that were approved in PR -6 are not shown on Map 2.05 -M1. Please re- submit the map with the correct boundaries. Response: The map was to have included these changes, but they did not make the final plotted version. The map has been corrected. 3. In TR -73, the alluvial monitoring well EC -14 was relocated to accommodate the methane fueled electricity generating station. At that time OMLLC committed to submitting an abandonment report for the well. The generating station has since been installed and the Division has not received the abandonment report. Please submit the abandonment report for EC -14. Response: The report and well diagram for the new well EC -14 #2 is included herein and includes a note concerning the abandonment of the well it replaced. The well diagram may be placed into Exhibit 2.04 -E4, Item #3 — Well Completion Diagrams. 4. Technical Revision 66 changed the procedures for the sealing of the gob vent boreholes at the Elk Creek Mine. A minimum of 50 feet of cement sealant from at least 50 feet below the ground surface to within 3 feet of the ground surface is required. The wells are equipped with a 9 5/8 inch pipe which equates to 1 cubic yard of cement to seal 53 feet of pipe. According to the abandonment reports, all but one of the abandoned wells have more than 6 yd3, most have more than 20 yd3 and one with 50 yds. Doing more than the minimum requirements is always encouraged; however, the Division is inquiring why OMLLC decided to seal the wells in excess of the minimum requirements. Response: The cement trucks were available to quickly fill boreholes, thus avoiding the additional mob /demob of equipment, personnel, etc. per the Division's Estimate to fill boreholes to only 50 feet.