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The quality of the water within the tailings, stope fill areas, and settled water sumps is controlled by the offsite, <br />gravity/flotation concentration milling process. This mill process removes the pyritic, acid producing materials from <br />the ore. Additionally, the process produces an alkaline (ph 7-9) tailings product that mitigates the possibility of acid <br />producing tailings. Representative process testing has been conducted to determine the waste stream <br />characterization of typical materials encountered within this type of mine. These are higher grade complex lead, <br />zinc, copper, gold, and silver ores and low-grade stope fill/pyritic waste material. Attached as Addenda A - H, are <br />typical waste characterizations of the complex lead, zinc, copper, gold and silver ores. Addendum I contains a <br />typical waste characterization of the low-grade stope fill/pyritic waste material. <br />Ambient ground water quality in the area is best inferred from the data collected from the Argo Tunnel Facility and <br />a monitoring well located at the Bald Eagle/ 2 Brothers Mine. This information is attached as Addendum J. It now <br />must be noted that the water quality of the tailings process water exceeds the ambient ground water quality as <br />exhibited. Therefore, any seepage of water from this mine into the surrounding groundwater will not be a detriment <br />to groundwater quality. Furthermore, the compacted, finely ground solids will become a sealing medium; self- <br />sealing the stope fill areas against the percolation of water into the substrate rock. <br />This recycled water process will not contaminate, but will improve groundwater quality; and it will not create a <br />hazardous environment in the stope fill areas or in the rest of the mine. Due to the extreme depths of the mine <br />workings and stope fill areas, the most practical way to monitor water quality is to sample the recycled slurry <br />process water at the 10,000 gallon steel tank located on the surface. <br />The only chemicals to be used are diesel fuel, motor oil, ATF and/or hydraulic oil, and automotive grease. Diesel <br />will be stored in a 55 gallon drum and/or 5 gallon fuel cans. Motor oil and ATF will be used in case quantities or a <br />maximum of 55 gallons each. A maximum of 2 cases of grease (12 tubes/case) will be on hand. All these <br />maintenance chemicals will be stored in the tool shed and/or hoist house. MSDS and hazard placards will be <br />displayed as required.