PERMFILE137803

• Permit No: M2004022
• IBM Index Class Name: Permit File
• Doc Date: 6/28/2004
• Doc Name: Response to Adequacy Review Comments
• From: J B Engineering LLC
• To: DMG
• Media Type: D
• Archive: No

J~~~g~-
106 Rock Bridge Ct., Windsor, CO 80550
Telephone: [phone]
Fax: [phone]

June 24, 2004
Mr. Tom Schreiner JUN 2 8 ~
Division of Minerals and Geology
1313 Sherman Street, Room 215 Division of Minerals end Dsslspy
Denver, CO 80203
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RE: Resparse fo Adequacy Review Commrerr>s - Raindance Sand 8 Gravel Done
Regular 112 Application, F'li a No. M-Z004-022, Class: Permit
Dear Tom:
On behalf of our client, Hilltop Aquatic Investments, LLC, we offer the following responses to
your Adequacy Review Comments, dated June 14, 2004, as follows:
6.4.4 Exhibit D -Mining Pin
1. The concrete and asphalt plant and concrete and asphalt recycling fadlities
wpl tie rek>cated from another site and shall tie in place during the operation
of the mine only- Post mining and prior to redamatan, the batch plants and
recycle fadlities shall lie removed.
2. Application for the SWSP and Gravel Well Permit is expelled to be submitted
to the Office of the State Engineer for review and approval the week of June
21, 2004. The expelled approval date is uncertain; however the operator
shall not do any grading that would expose groundwater and shall provide
written notification with an affidavit at the time SWSP and Gravel Well Permit
approval is received stating that no groundwater was exposed prior to permit
approvals.
3. The total overburden material generated by the mining operatans totals
4,000 yd3. 160,000 yd3 of the material shall be used for the construction of
the haul road, 70,000 yd3 shall be used for the construction of the plant site,
153,000 yd9 shop be used forfiping to the desired reclamation slopes and liner
foundation, and 107,000 yd3 of material shall be used in the construction of
the daystor~ liner. The plan no longer calls for material to tie exported.
6.4.5 Exhibk E -Reclamation Pin
4. The surface acreage and water storage capacities for the two reservoirs are
3.24 acres for the Surdiarge Reservoir and 31.48 acxes for Raindanae
Reservoir with volumes of 44.5 ao-ft and 560 ao-ft, respectively.
5. A typipl cross-section for the daystone liner has Been included and is
labeled Figure 1. The full length of the fill slope on the soil liner stmll tie
constructed with a slope of 3H:1 V from kxest to toe.
6. From Figure 1, it can tie determined the liner width at the top of the reservoir
is 8' and the liner thickness is 38' at the tce. The thidvress is based on the