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February 19, 1999 <br />NOV C-93-006 <br />Page 3 <br />7. Subsidence profiles for trio aubaldenee monitoring networx, <br />which shows subsidence to date. <br />s. The results o! a visual survey i! one was completed. I! <br />not, please note in your report that one was not completed <br />and the reasons why this was not done. A visual survey <br />should be performed at least yearly. <br />9. Include hydrologic information. For example, provide <br />venter level information for the groundwater wells that <br />exist over the mina workings. Analyze the groundwater <br />data in respect to subsidence. Include any other <br />information that would correiata any hydrologic impacts <br />with subsidsnce. <br />10. Please provide an explanation as to why Panels 2, 3, 1S, <br />36, s2, and 93 were resat during Survey f13. <br />11. inoluda any other information that would assist the <br />Division in the review o! the eubaiQenoe reports. <br />The information required by the three abatement stops should be <br />aubmittad ns a technical rsviaion an or bafare April 19, 1993. <br />Plsaae call i! you have any quaetiona. <br />Sincaraly, <br />Christine E. J eton <br />Reclamation 9 ac slier <br />Enclosurse <br />Certified Mail No. P 880 7~4 064 <br />007.NOV <br />