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r~ quantities of residues remaining in the milling tanks and pipe works appear to have been cleaned out in recent years. Only small, insignificant quantities of milling residues remain in processing tank bottoms and interconnecting pipes. Such quantities do not appear to represent a significant environmental problem, and documentation provided in the amendment application indicates that the proposed new owners of the mill will assume responsibility for mainte~aance of the building. The possibility of contamination in the mill building due to chemical spills occurring during milling operations appears to be extremely unlikely since the entire mill building hats an intact concrete floor complete with drainage features, sumps, and pumping units used to recirculate spilled material. No evidence of significant spillage of chemicals was found during the inspection. A significant quantity of crushed ore material does remair.~ in the fine ore bin and along the beltway of the fine ore bin feed conveyor, however the contamination potential of this material is probably low compared to processing sludges, reagents, and tailincfs material. Additionally, the material is adequately isolated from the surrounding environment by being enclosed within the intact and structurally competent ore bin and conveyor belt housing. The proposed new owners of the mill building will assume responsibility for maintenance of the structure, and have further indicated that the remaining ore material helps preserve and enhance the historical character of the site. In regard to health and safety aspects of the mill building, a significant concentration of rodent droppings was observed during the inspection, and in addition a variety of physical safety hazards such as tripping hazards, low head clearance hazards, falling hazards, and a potential for inadequate load bearing capacity on some of the elevated decks used for supporting large tour groups, were also observed during the inspection. At the time the operator applies for release of the mill building from reclamation responsibility, the proposed new owners of the building will need to addre,3s how these problems will be adequately taken care of. Mule Barn and Power Plant Both of these historic structures were included in the Di.vision's 11- 17-95 inspection of the Mayflower Mill. The inspection revealed no significant environmental problems within or immediately adjacent to either structure. As discussed previously, health and safety issues associated with future use of either building for historical tours need to be addressed by the San Juan County Historical Societ}• at the time release is requested. TERRY TIINLIEL FACILITIES: The Division appreciates the operator's clarification regarding the intent of the phrase contained in the amendment application regarding the disposition of water treatment facilities during fina:L reclamation of the Terry Tunnel site. Since no change to the exiet.ing approved 2