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III IIIIIIIIIIIII III Doc ,`b.12/11I2001 sss 7T' .~ !/ ~` 4_0 OPERATION AND RECLAMATION STATUS The text contained in this section is mostly obsolete since the mine has been reclaimed. It is difficult to revise approximately 144 pages of text without losing some valuable historical information. The purpose of the following discussion is to describe the status of the mine site and loadout as of the date at the bottom of the page. This will assist the reader of this permit to understand the portions of this section that are no longer applicable to the operation. Mine Status All of the structures at the North Thompson Creek No. 1 Mine and No. 3 Mine were removed from the site during 1986 and 1987. The foundations and some of the structures were buried on site. During 1987 the No. 1 and No. 3 Mine sites were contoured and reclaimed. The base of the concrete box culvert in North Thompson Creek through the No. 1 Mine area was left in place to assure creek channel erosion did not occur. Originally, the concrete base and stream banks were covered with riprap. However, high flows moved • the riprap off of the concrete base. The concrete base will be permanent to provide creek channel protection which wilt in turn assure the No. 1 Mine portal area is not eroded which will protect the permanent water treatment facility. During 1988, the No 1. Mine filled with water and started to discharge. The portal area was excavated in order to control this seepage. One of the portals and a flooded air shaft were exposed to control the mine seepage. As of June 1998, all of the seepage water from the No. 1 Mine is emerging from the shaft. The water from the shaft is conveyed to the long pond through a 6-inch plastic pipe. During late 1998, the Operator backfilled the portal area. A 36-inch culvert was placed in the fill to provide access to the air shaft. In the event maintenance on the 6-inch pvc pipe is required, access to the air shaft will be through the culvert. The No. 3 Mine, (Outfall 007), has two separate sources of discharge. One is from a point source (spring) within the Mine that is piped directly to the surface. This good quality point source of water was the source of the discharge from the No. 3 Mine, (Outfall 007), since • the mine was sealed in 1986. The water level in the mine fluctuated since that time but no 4-i (Rev. 5/01)