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<br />A topsoil replacement depth of 36 inches for irrigated pastureland that was formerly Soil Unit D70B <br />is proposed. A depth of 1 S inches for irrigated pastureland that was formerly 30C is also proposed. <br />For dryland pasture, 12 inches of mixed topsoil that was salvaged from Soil Units 1E, 1EW, and 808 <br />will be used first. If additional seedbed media is needed, it will be selected from suitable overburden or <br />interburden material. <br />Meirrtenance and Tending Procedures. Prior to distribution of topsail, alt graded mined areas ion which <br />topsoil is to be applied) will be sampled to confirm spoil suitability (see Overburden/Spoil Handling Plan <br />for mare details). The density and physical characteristics of the replaced topsoil and upper spoil will <br />be observed. Past experience has shown that ripping and chisel plowing will correct any excessive <br />compaction problems. Field staking will be utilized, when required, to assist in delineating soil map unit <br />troundaries. Color photographs or video taping of small, undisturbed topsoil islands or pedestals will be <br />taken to verify topsoil salvage depths. The minimum sampling intensity shall be one hole per map unit <br />or five acres, whichever is less. This topsoil salvage depth information will be kept on file a the mine <br />office and will be submitted with the annual topsoil Balance/Spoil duality Report. Topsoil recovery <br />depths will be adjustedrf warranted by the site conditions. <br />Replacement depths of topsoil and subsoil will be documented and recorded for each reclamation <br />block. Topsail depth measurements will be recorded on a 30atoot sample grid. This soil replacement <br />depth information will be utilized in the annual topsoil balance and for bond release purposes. <br />Replaced topsoil will be sampled, tested, and evaluated for fertility to ensure optimum germination, <br />seedling emergence, and root growth conditions. A 300-foot sampling grid will be utilized whereby <br />every four or five samples per reclamation block are composite. At a minimum, the samples will be <br />analyzed for PH, salinity, calcium carbonate, particle size, organic matter, nitrate, and ammonium <br />nitrogen, and phosphorous utilizing standard techniques. Results of the analysis will be maintained by <br />the mine and/or Division offices. Qualitative monitoring for fertility will also be done on all reclaimed <br />areas as part of the ongoing revegetation success monitoring during the period of liability. QualitativE <br />monitoring for fertility will include unscheduled visual observations in conjunction with soil sampling will <br />be conducted at representative revegetation transect locations. <br />(s~sa7 2.05.4(2)(d}11 <br />