2015-04-28_REPORT - M1989065 - Laserfiche WebLink

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Additional Sheet 2015 Annual Report Winkler Light Aggregate Quarry M- 1989 -065 Schmidt Construction Company Anniversary Date: March 28 Differences in Acreages from Previous Reports: The Total Affected Land acreage reported in the 2014 Annual Report was slightly higher than it should have been. Thus the 2015 Total Affected Land acreage shown on Map 1 appears to have declined. That is not actually the case. In fact it has slightly increased if the error made in the 2014 report is corrected. In 2014, the backfill areas were added twice due to the configuration of the object defining the active mining area at the main quarry. If that error is corrected and other acreage increases are taken into account the Total Affected Land acreage on Map 1 for 2015 is correct. County USR Acreage: The Map 1 total acreage accounting block in the upper left corner has been modified slightly. Parenthetical notes have been added below the categories to clarify what applies to the USR permit. This helps to avoid confusion that the Total Affected Land acreage is the acreage that is relevant to the USR requirements. In fact, roads and roadsides are not included in the USR acreages, but are included in the Reclamation Permit issued by the MLRB. Thus the USR relevant acreage and its limitations on total USR defined affected land is equal to the total affected land less the acreage in roads and roadsides. That acreage increased slightly in 2015 due mainly to expansion of mining and creating a new soil stockpile. USR acreage does not decline except with the full release of reclaimed land. In 2015 -16 it is expected that at least a portion of the backfill area will be topsoiled and seeded and the Active Revegetation area may be ready for release in the near future the way it is looking right now. The seeding of the backfill area will not reduce USR acreage, but the release of the Active Revegetation area would reduce USR acreage as well as Total Affected Land included in the Reclamation Permit. Notes on Mining: Mining has now moved westward and to the south of the large soil and overburden stockpile south of the office. Unlike other areas to the east, this location was found to have a rather deep overburden layer but was missing the caprock that usually covers the rhyolite. This appears to be a local geological condition and it is likely that the overburden will be thinner to the south of the current mining area. Although the new pit area added a good deal of land to the actual pit area, all but some tiny pieces was included in previously affected land. Therefore, the increase in affected land as a result of this pit amounted to a few thousand square feet, not including the soil stockpile generated in stripping this land. The result of this deep overburden is that a prodigious amount of overburden was produced. That large volume resulted in a greater amount of backfill area than would have otherwise occurred if the overburden had been of a more normal thickness. As this thicker overburden will likely continue to need to be extracted for an unknown period of time into the future it is possible that a bit more backfill will be able to be done than was expected to be possible from this area. Although this deep overburden results in a considerable increase in mining costs it provides material for implementing more reclamation than was expected. Schmidt Construction 2015 Annual Report M- 1989 -065 Winkler Light Agg Quarry Page 1 of 1