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Mining Technique <br />• Conventional rornrand-pillar techniques with pillar extraction will be <br />conducted below oollwial deposits and associated springs. No alternative <br />method is required. <br />Repair Procedure - Shor~Term <br />Significant Undeveloped Spring <br />1. Locate flow interrupting crack. <br />2. Excavate crack. <br />3. Install pond lining per manufactr~rer's recrnmendations. <br />4. Backfill with porous gravels. <br />5. Cover with native soils. <br />6. Hevegetate disU~rbed areas with CMLd2D approved permanent seed <br />mixtrre. <br />Material Required <br />• Pond Liner Ataterial - Local suppliers {4-hour delivery) , Alo pond <br />liner required on mine site. <br />Ranger Nlid ~mpany, 242 Elm Oaurt, (;rand Junction, CO 81501, <br />phone - 245-3679. <br />Ute Mills, 555 Abrth 4binsend Avenue, hbntzose, CO 81401, phone <br />- 249-9252. <br />Significant Developed Springs <br />1. Locate flow interrupting crack. <br />2. Excavate groundwater source. <br />3. Pdd additional perforated pipe. <br />4. Backfill with porous gravel filter material. <br />5. Cover with native soils. <br />6. Reveyetate dish~rbed areas with CMLRD approved permanent seed <br />mix h~ re . <br />• <br />