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7. A copy of the San Juan Basin health Unit permit <br />is enclosed. <br />8. The map has been changed to include the Leech field <br />and well location for the testing and measurement <br />of the water table. A four inch hole will be drilled <br />1.0 feet deep. A two inch p.v.c. pipe will be installed <br />with the bottom five feet being perforated and packed <br />on the outside with pee gravel. The upper five Eeet <br />will be bentonited. This pipe will be capped and <br />tested for water quality and depth every April and <br />October. A record of these tests will be kept. A <br />diagram is attached for both we11s,.Leech field and <br />sediment pond. <br />9. La Plata will ensure that all soil nomenclature for <br />the text corresponding exhibits and corresponding <br />maps is employed. <br />10. A. The mine fan has been added to map 11. <br />B. The electrical substation has been added to map 11. <br />C. The statement on planned pillar extraction on <br />page 2.05-12 has been omitted. At this time we <br />do not know what method for pillaring will be <br />accepted by M.S.N.A. <br />D. The water well has been added to map #7, <br />E. The overland conveyor has been added to map #.11. <br />F. The coal loadout area is shown on map #11. <br />G. The water monitoring points have been added to <br />map #7. <br />11, 1'he NPDES permit <br />soon as it is re <br />12, Tfie design for a <br />enclosed. <br />13. This information <br />14, Calculations has <br />has not been issued to date. As <br />~ei.ved, it will he submitted. <br />nonclogging dewatering system is <br />is included in this letter, <br />been submitted with this letter. <br />15, At present and throughout this last winter the pond <br />has maintained a water level of two feet. The State <br />Water Engineer on his inspection of this pond 5-15-87 <br />stated that the two Eeet of water presently in the <br />pond will be maintained as this is the ground water <br />level elevation. A ',tter from the State Water En- <br />gineer is enclosed. t don't feel that it is in- <br />appropriate to be able to use the sedimentation pond <br />as a stock pond as well as a sedimentation pond. If <br />-2- <br />