2010-11-16_PERMIT FILE - C1996083A ‎(28)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 11/16/2010
• Section_Exhibit Name: Volume IIIA Exhibit 15 Subsidence Prediction
• Media Type: D
• Archive: Yes

Subsidence Handbook Volume III, Exhibit 15 •
Repair Procedure -Short-Term
Undeveloped Spring
1. Locate flow interrupting crack.
2. Excavate crack.
3. Install pond lining per manufacturer's recommendations.
4. Backfill with porous gravels.
5. Cover with native soils.
6. Revegetate disturbed area with DMG approved seed mixture.
Material Required
Pond Liner Material -Local suppliers (24-hour delivery). No pond liner
required on mine site.
Randall Industries, Inc., 745 Struthers Ave, Grand Junction, CO 81501,
phone [phone] •
Significant Developed Springs
1. Locate flow interrupting crack.
2. Excavate groundwater source.
3. Add additional perforated pipe.
4. Backfill with porous gravel filter material.
5. Cover with native soils.
6. Revegetate disturbed areas with DMG approved permanent seed mixture.
Material Required
PVC Pipe -Local suppliers (24-hour delivery). No PVC pipe required on
mine site.
Bollinger & Queen, Rogers Mesa, Hotchkiss, CO 81419, phone [phone].
Grand Junction Pipe & Supply, 2868 I-70 Business Loop, Grand Junction, •
CO 81501, phone [phone], fax [phone]
PR-04 40 10/00