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(Page 2) MINE ID # OR PROSPECTING ID #: ~~-~ 9Z9-nes INSPECTION DATE: ~/2.zr05 INSPECTORS INITIALS: ~_ OBSERVATIONS Backaround. A complaint letter received January 21, 2005, from Cathy Barnett, a former employee at this facility, initiated this inspection. Ms Barnett's complaint, which was forwarded to the Operator, indicated that "Centennial Aggregate" had improperly disposed of material from a diesel fuel spill, and that transmission fluid, oil, and hydraulic fluid from 5 gal drums were being improperly handled. Ms Barnett's letter indicates that the diesel spill occurred in May, 2003. (Considering site condition, Ms Barnett probably was referring to a cache of 5 to 55 gat containers. See later notes.) Her letter also indicates that she was concerned for wildlife at Rocky Flats. Weather was clear. The ground was clear of snow. An identifying sign was posted. Excavation was active during the inspection though crushing and sizing operations appeared to be generally inactive. No wildlife was observed. All distance, volume, and directions cited herein are approximate. Present during the inspection were Tom Murray (Lakewood Brick and Tile), Josh Stratton (Centennial Materials) and Steve O'Brien (consultant for LB&T). Observations: Centennial Materials is the construction contractor for Lakewood Brick and Tile. They are mining the Church pit as a unit along with the adjacent Rocky Flats Pit, M-1987-113, which joins Church Pit to the east. Although the Church and Rocky Flats pits comprise separate permits, and the permit corners are marked with painted fence posts, the boundary between them is indistinct on the ground as the boundary materials are being excavated as a single unit. All drainage from the site is to the pits. All berm slopes are adequate. The berm slopes are presently un- vegetated as the berm surface is being prepared by adding manure. Storm water appears to be managed properly and contained on site. The permit boundary is marked with fences and posts, and properly signed. Along the south property boundary, adjacent to the Rocky Flats main E-W access road, is a berm approximately 15-20' high. North of and adjacent to the berm on the west end, near the office, is a graded area that was used recently to stage manure which is applied to the berm. This is an ongoing activity to amend and vegetate the berm. Small divots appear in the toe of the berm, along the north side, where vehicles are parked and fluids (fuels, etc) are stored. Neither oily or other evidently contaminated soil was noted anywhere along or upon the berm. Two fuel tanks were present north of the berm: a 2000 gal diesel tank and a 300 gal gasoline tank. Both tanks rest in rectangular metal containers that serve as secondary containment. A minor amount (few gallons at most) of liquid was in each metal container. While the service hose nozzles from the tanks were within the secondary containment, the filling points are obviously outside the tanks. Barrels of various liquids rest on a pad adjacent to the 300 gal gasoline tank. These sit on a pad of absorbent sand that acts as secondary containment. Whether the sand lay on an impermeable layer was not evident and Centennial was not sure whether such a pad existed. There was no lip or berm for secondary containment above ground surface. The ground around same of the tanks and in the parking areas was covered partially with crushed stone. No fuel spillage was evident cway from the tanks, but around all of the tanks and barrels were small spills, most evidently from the adjacent containers.