Laserfiche WebLink
Addressee Name <br />Date <br />Page 2 <br />g) The following wells are listed in the summary sheet as `not drilled' but are labeled on <br />the map as existing or reclaimed: GVB- LW- 16 -07D, -16 -1813, -18 -0513, - 19 -08B & <br />C, - 17 -06D, - 17 -08D & E, - 18 -07C & D. Please clarify. <br />h) Well GVB- LW- 18 -07B is listed in the summary sheet as the same road disturbance <br />and pad disturbance as - 18 -05. These wells are shown in different locations on the <br />map. Please clarify. <br />i) The Northing coordinates for wells GVB- LW- 18 -03B through GVB- LW- 19 -08C on <br />pages 7 and 8 have seven digits. All the other Northing coordinates have six digits. <br />Please correct this typo. <br />j) Wells GVB- LW- 18 -06, - 18 -07, -18 -08 and -18 -09 are shown as both Existing and <br />Proposed on the map. Please correct the snap. <br />2. The current permit and coal lease boundaries that were approved in PR -6 are not shown <br />on Map 2.05 -M1. Please re- submit the map with the correct boundaries. <br />3. In TR -73, the alluvial monitoring well EC -14 was relocated to accommodate the methane <br />fueled electricity generating station. At that time OMLLC committed to submitting an <br />abandonment report for the well. The generating station has since been installed and the <br />Division has not received the abandonment report. Please submit the abandonment report <br />for EC -14. <br />4. Technical Revision 66 changed the procedures for the sealing of the gob vent boreholes <br />at the Elk Creek Mine. A minimum of 50 feet of cement sealant from at least 50 feet <br />below the ground surface to within 3 feet of the ground surface is required. The wells are <br />equipped with a 9 5/8 inch pipe which equates to 1 cubic yard of cement to seal 53 feet of <br />pipe. According to the abandonment reports, all but one of the abandoned wells have <br />more than 6 yd3, most have more than 20 yd3 and one with 50 yd3. Doing more than the <br />minimum requirements is always encouraged; however, the Division is inquiring why <br />OMLLC decided to seal the wells in excess of the minimum requirements. <br />5. Two well abandonment reports were submitted with MR -102 not showing that wells <br />GVB- 19 -OIA and GVB -19 -03 have been sealed /abandoned according to permit Section <br />2.05.4. Please clarify if these two wells have been properly abandoned. <br />If you have any questions, please contact me at (303) 866 -3567 ext 8142. <br />Sincerely, <br />Brock Bowles <br />Environmental Protection Specialist <br />