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stockpiled for reclamation. Average size of disturbances were: drill pads 60 feet by six (6) feet, mud pits 12 feet by • six (6) feet by five (5) feet, and roads approximately ]4 feet wide. This results in a normal pad size of approximately 60 feet by 40 feet. Drill holes were sealed with a combination of cutting, bentonite compounds and portland cement slurry. The sealant was placed from bottom to within ten (10) feet of the surface. Holes which have multiple aquifers or bedrock aquifers were sealed using a portland and/or bentonite plug extending 50 feet above and below the water bearing zone in accordance with 43 CFR 3484. I (a)(I ). All surface casing was removed and/or cut off three (3) feet below the surface. An approved expandable plug was be placed ten (10) feet below the surface when cuttings were used to backfill the hole, and an approved cement slung will be placed within three (3) feet of the surface. Development drill holes may be [emporazily secured for possible re-entry or future use prior to final abandonment. In such instances, drill holes will either be cased or sealed to prevent possible aquifer communication as described above. Development holes will be surface-cased and cemented or grouted in all instances and tightly capped to prevent unauthorized entry or surface or subsurface water in-flow. Protective barricades or fencing will be installed to prevent damage to the portion of the casing protruding above the ground surface. If development drill holes are not subsequently used for mine development purposes, they will be abandoned in accordance with the standard procedure previously described. Items specific to hole DDP-94-001 (hole A94) are as follows: equipment will be cleaned and oil leaks repaired prior to such equipment using the river crossing. In the event a fuel tank is needed during the drilling, such tanks will be moved across the river on a truck-bed or elevated trailer. All materials produced by drilling will be contained and prevented from entering the river, with the possible exception of water encountered during drilling which will be discharged in accordance with our CDOH permit. The drilling pad will be located out of high flow channels and areas anticipated to be inundated by high spring Flows. Disturbance to trees will be avoided, and disturbance to • understory vegetation will be minimized to the greatest extent possible. Items specific to hole DDP-95-14 (MR 95-40) are as follows: Following completion of drilling and logging of the hole, steel casing will be installed and grouted to prevent hydraulic movement through the annulus or surface. The Middle Sandstone aquifer will be screened for sampling. Well casing will be left protruding a minimum of three (3) feet above the ground surface and will be protected from damage by a fence. Prior to initiating sampling of 95-14, an approved sampling program for frequency and monitoring parameters will be obtained. A small water control bens will be constructed along the lower side of the site to prevent potential suspended solids migration from the drill pad. Reclamation costs are estimated on an average of $1,350.00 bulldozer fee plus $950.00 for mulched-seed mix per acre of disturbance. Seed Mix For Drill Sites Western Wheat Grass 8.1 PLS/ac Intermediate Wheat Grass 7.2 PLS/ac Indian Rice Grass 2.7 PLS/ac All seed to be broadcast covered by a straw mulch then crimped by a dozer. Proof of compliance will be provided within 60 days after abandoning a drill hole, specific drilling program approved by the Division, or when requested by the Division, the operator will submit a report detailing the following information: • Location of the drill hole as spotted accurately on a topographic map • Depth of drill hole • Surface elevation of drill hole App~,O11EdD MAR 15 7112 MidTerm Response 2.05-7 ~~~~ Revised 12/05/01