2009-08-01_HYDROLOGY - M1981112

• Permit No: M1981112
• IBM Index Class Name: Hydrology
• Doc Date: 8/1/2009
• Doc Name: Full Removal & Habitat Restoration & Monitoring Plan
• From: JJ Concrete, LLC & Builders Aggregate Company Properties
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

List of Tables

Number / Section Page

Table 1. South Platte River Mean Flow Duration........................................................................37
Table 2. Channel Geometry at Cross Sections............................................................................38
Table 3. Plant Species List .........................................................................................................39
Table 4. Work Plan & Schedule.................................................................................................41

List of Photos

Number / Section Page

Photo 1. Builders Aggregate Company office. July 30, 2009. ....................................................44
Photo 2. Shop and equipment buildings. July 30, 2009.............................................................44
Photo 3. Vehicles and equipment. July 30, 2009. .....................................................................45
Photo 4. Old and abandoned vehicles and equipment. July 30, 2009.......................................45
Photo 5. Old and abandoned machinery. August 12, 2009.......................................................46
Photo 6. Hydro-Dredge on mining pond. July 30, 2009............................................................46
Photo 7. Mining pond, tipple and sorter on right bank. July 30, 2009.......................................47
Photo 8. Waste rock. August 12, 2009......................................................................................47
Photo 9. Left bank following excavation. May 11, 2008............................................................48
Photo 10. East bank on August 12, 2009 following spring flooding............................................48
Photo 11. Left bank following sand deposition of high flows in June 2009. August 12, 2008.....49
Photo 12. Road across High Flow Channel of the River on left bank. August 12, 2009..............49
Photo 13. Right bank Herbaceous Wetland. August 12, 2009...................................................50
Photo 14. The berm created to keep River water from mining pond impacted wetlands.............50
Photo 15. Right bank and low water River crossing. August 12, 2009.......................................51