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14 • A cement bond log (CBL) shall be run, according to EPA Guidance found in Appendix D, on the intermediate casing to ensure aquifer protection. If the well design precludes the valid use of a cement bond log, then a cement evaluation tool shall be used. • The permittee shall include appropriate narrative interpretations by a knowledgeable log analyst. Coring may be performed in the mining interval, approximately 150 to 800 feet below the Dissolution Surface (approximately 2,200 feet in depth for a surface elevation of about 6,230 feet msl) of solution mining wells as needed to obtain pertinent stratigraphy data for mining planning. Core data shall be provided to the EPA and BLM if requested. PART II, Section B CORRECTIVE ACTION Approximately 28 wells currently exist or shall be constructed in the near future within the vicinity of the area of review (AOR)(see Figure 3). Eleven (11) wells are owned and operated by American Soda, Three (3) of which are Class V test solution mining wells (wells 20-2, 20-3, and 20-19) and nine (9) wells are water supply wells, monitoring wells /or exploration holes. The other sixteen (16) wells are owned and operated by a -}-~ others. American Soda is aware of only one well (Nielsen 17-1) w~ ~ ) in the AOR that may be improperly sealed, or abandoned. NCI' Zp~ Furthermore, none of the wells owned and operated by others are t located within less than 600 feet of the 30-year solution mining GfW~~~ well field, with the exception of wells Nielsen 17-1 and Nielsen `Q,('^~te71 20-1. Nielsen 20-1 is currently used by American Soda as a rt~i monitoring well. Nielsen 17-1, which is located approximately , t4v `^ W~~ ~H1 between the ZO-25 year and 25-30 year mining panels, shall be ~ either completed as a monitoring well or shall be plugged and ~~ abandoned prior to operation of any solution mining wells with a center location that is within 600 feet of Nielsen 17-1. The 17-1 well was drilled to a depth of 1,229 feet, cored to 2,554 feet and then temporarily abandoned. in view of the above, no corrective action by the permittee is considered necessary prior to the issuance of a Class III UIC Area Permit.