Laserfiche WebLink
As with any surface mining operation, constantly changing operational <br />needs and regulatory impacts as well as adjustments in production due to <br />customer requirements dictate that the scope and general nature of the <br />operation cannot remain static. <br />The various factors discussed above have required a number of revisions <br />during the initial and subsequent five-year permit terms for the Seneca <br />II Mine. Under Colorado's "old" regulatory program, revisions were much <br />less structured than under the current regulatory program. <br />Additionally, the early permit application submittals were not as <br />detailed as applications which are submitted today. <br />The following text will briefly summarize the 43 Minor Revisions, 28 <br />Technical Revisions, and 1 Permit Revision approved for the Seneca Mine <br />since the original permit was granted in September 1981. Please also <br />refer to Volume 13, Tab 15, Revisions. <br />• History of Operation/Summary of Revisions <br />Original Application <br />At the time the original application was submitted, both the 650 <br />dragline and 770 dragline were working the Wadge coal seam. The intent <br />at that time was to open up the Wolf Creek coal seam area in October <br />1981 with the 770 dragline. The 650 dragline was to stay in the Wadge <br />area until April 1984 when it was to be moved off site. <br />This plan, as approved, was designed to leave approximately 7,000 feet <br />of open pit for 9 years until the Wolf Creek coal seam was mined out and <br />the 770 dragline moved down to the Wadge area to continue mining. <br />Power plant demand, environmental concerns and operations efficiency <br />caused PCC to reevaluate the proposed mining plan. This prompted the <br />first of several Technical Revisions which have served to modify and <br />improve the operational characteristics of the Seneca mining operation. <br /> <br />-3- Revised 09/12/95 <br />