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t • EXHIBIT "D" MINING PLAN This operation will be similar to other clay pits in Fremont and Pueblo Counties. This Louviers - Travessilla Complex is typified by 20 - 50 percent slopes. Topsoil varies from 3"- 10" with 10"-16" of overburden overlaying 2'-8' of caprock, which covers the clay seam. This clay seam ranges from 15'-50' in depth. Notice is hereby given that this pit will normally be oper- ated less than 6 months per year, and the operator requests that this not be considered temporary cessation. Rule 1.6.2 states in part: "a permit granted pursuant to Rules 2 or 3 • shall continue in effect as long as ........operator has in- cluded in their permit applications, a statement that the affected lands are to be used for less than one hundred eighty (180) days per year." (a) Mining Methods Mining will continue to be 50' - 60' wide slices around the side of the hill to remove the clay. The existing slices will be continued into the area on the north added by this conversion to a 112, by moving westward around the hill. Topsoil will be removed by dozer and/or front-end loaders and stockpiled at the outer edge of the previous "slice". Overburden will then be removed in the same manner, but will be stockpiled separately from the topsoil. The caprock may require occasional blasting if ripping becomes too difificult. It will be removed after ripping and/or blasting by bulldozer and stockpiled in the previously mined area for use as backfill in reclamation. Mined clay will be stockpiled in the immediately ad.iacent mined area until it is loaded by front-end loader on haul trucks for transport to the operator's brick manufacturing plant in Pueblo. (b) Earthmovinq • Earthmovinq will be performed by any combination of front-end loaders, dozers with rippers and/or scrapers. (c) Water Diversion and Impoundments 1. There will be no Impoundments other than the pit itself.