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(Page 2) MINE ID # OR PROSPECTING ID # M-1985-184 INSPECTION DATE 3/13/03 INSPECTOR'S INITIALS ESC This was an inspection of the Killion Supply sand and gravel mine conducted by Erica Crosby of the Division of Minerals and Geology. Jamie Killion of Killion Supply Company was present during the inspection. , An 112c Mining and Reclamation Permit was issued to Charles Nauta on February 18, 1986 for a total permit area of 11 acres. The permit was transferred to Killion Supply Company on October 9, 1998. The Division holds a financial warranty in the amount of $14,500.00. The mine is located 1 mile north of Ft. Collins in Larimer County, Colorado. No mining was actively taking place during the inspection. Rather, the area is used to store used concrete, asphalt, overburden material and topsoil. The materials are stored and recycled on site. The eastern portion of the site contains mostly concrete material mixed with overburden. The western side contains overburden material, topsoil and broken asphalt. The mining and reclamation permit is not clear regarding the storage and recycling of this off site material. The operator will need to revise the permit in the form of a technical revision describing this practice. The operator will need to explain the nature of the material stored on site, the source of the material, and the expected volume to be stored on site. In addition, the reclamation plan may need to be revised if any of this material is to be used to reclaim the site. The technical revision to the permit must be submitted by May 13, 2003. See page 3 for further detail. The original application submitted in 1985 depicts a final groundwater lake 6.5 acres in size. The remaining area is to be graded, topsoiled and seeded. It was noted during the inspection that the groundwater lake is approximately 2-3 acres in size. No grading of the lake has been conducted to date. It appears that the mine has reached the eastern limits along the Eaton Ditch and the Union Pacific Railroad. The operator should conduct some reclamation of the pond slopes in this area. The approved grading slope along the shoreline is a minimum 3H:1V from 5 feet above to 10 feet below the expected water line. A 2H:1V slope can be established beginning at the end of the 3H:1V slope and extended to the bottom of the excavation. All wood products need to be removed from the shoreline, and not incorporated into the reclamation plan. The Division contacted the Office of the State Engineer (OSE) to determine if there was an approved substitute supply plan, or plan of augmentation. According to the OSE, the previous operator, Charles Nauta, provided a plan of augmentation in Court Decreed #90CW129. The replacement water is derived from the Griffin and Nauta water rights. Typically, the operator is required to submit reports to the OSE regarding the plan of augmentation. For additional information on this issue, the operator can contact Dave Netels at 970-352-8712. At this point in time, the operator appears to be in compliance regarding exposure of groundwater at the mine site. I & E Contact Addreas NAME OPERATOR STREET CITY/STATE/ZIP Jamie Killion Killion Suonly Co. 12993 N. Foothills Hwy Longmont, CO 80503 ^ CE ^ BL ^ FS ^ HW ^ HMWMD (CH) ^ SE ^ WQCD (CH) Cc: Carl Mount; DMG (via electronic transmission)