PERMFILE49711

• Permit No: M2005066
• IBM Index Class Name: Permit File
• Doc Date: 4/6/2006
• Doc Name: Adequacy Response
• From: Banks and Gesso LLC
• To: DMG
• Media Type: D
• Archive: No

Ms. Erica Crosby
Division of Minerals and Geology
April 5, 2006
Page 8 of 21
19. The applicant stated that baseline water levels for the monitoring wells were
included with the application. The Division could not locate the data. Please re-
submit the baseline water level data to the Division.
Monitoring data from 2005 and early 2006 is included as Attachment 5. The
operator continues to collect data on a monthly basis, and will submit the data with
the annual report each year.
20. Please provide a reclamation plan for the four monitoring wells located on site.
Please include the depth of wells, diameter of the wells and how the wells were
completed. This will assist the Division in determining a final cost of reclamation.
Monitor wells will remain post-mining for the reservoir monitoring, and this is noted
on the revised Exhibit F. If you still require well information for bonding purposes,
please refer to the table below.
Total De th De th Com leted Hole Diameter Casin
MW #1 26 feet 20 feet 3.75 in. 2 in. PVC
MW #2 50 feet 20 feet 3.75 in. 2 in. PVC
MW #3 45.5 feet 40 feet 3.75 in. 2 in. PVC
MW #4 30.3 feet 20 feet 3.75 in. 2 in. PVC
MW #5 40.6 feet 35 feet 3.75 in. 2 in. PVC
21. The groundwater model prepared by the applicant did not take account of the
dewatering and dry mining of the 10-acre Phase 1 pit that will not be lined with a
slurry wall. The pit will ultimately be backfilled to approximate original contours, but
with overburden and shale extracted from Phases 2 and 3. Please revise the model
to include the dewatering, mining and reclamation of the Phase 1 pit.
Please refer to Attachment 6, which contains the Modeling Report from Martin and
Wood Water Consultants, Inc., dated March 6, 2006, containing information
regarding the dewatering of Phase 1.
22. Please depict the location on a map where mine water will be discharged. If mine
water is discharged into a ditch or other man-made structure, please provide
consent to discharge water into this structure. If water is discharged into a ditch that
is unlined, it may be prone to erosion if the discharge rates exceed the carrying
capacity of the ditch. The applicant should submit documentation to the Division for
review as to the proposed maximum discharge rate into the ditch and specifications
as to how much water the ditch can carry without experiencing erosion.
Asphalt Paving Company (APC) has two dewatering options:
1. Discharge to the South Platte River via an existing siphon pipe at the SE
corner of the property (labeled as such on revised exhibit C-3), and thence
through a ditch system across property now owned by Consolidated
Mutual Water Company (and currently mined by APC under DMG permit
#M-1990-098). Below please find photos of the existing siphon pipe ends