REV105038

• Permit No: C1996084
• IBM Index Class Name: Revision
• Doc Date: 1/10/2002
• Doc Name: LORENCITO CANYON MINE PN C-96-084 TR 7 ADEQUACY REVIEW FILL 7 ENLARGEMENT
• From: GREYSTONE
• To: DMG
• Type & Sequence: TR7
• Media Type: D
• Archive: No

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January 10, 2002
Envrronmenta[ Consultants, Inc.
Mr. Kent A. Gorham
Environmental Protection Specialist II
Division of Minerals and Geology
1313 Sherman Street, Room 215
Denver, CO 80203
RE: Technical Revision No. 7 (TR-07)
Lorencito Canyon Mine, #C-96-084
Adequacy Review, Fill 7 Enlargement
Dear Mr. Gorham:
RECEIVED
JAN i it X002
Division of Minerals and Geology
In response to your review of the Adequacy Review documents and our telephone
conversations on January 9 and 10, the following revised documents are hereby
submitted for your review and incorporation into LCC's application for TR-07:
Map 2.05.4-1 Postmining Topography
Figure 2.05.4-14j
Figure 2.05.4-3
Figure 2.05.4-4
Figure 2.05.4-5
Figure 2.05.4-6
Figure EX 15-9b
Figure EX 15-14
Figure EX 15-15
Jeff Canyon Surface Mine -Postmining Fill Area 7
Cross Section
Cross Section
Cross Section
Cross Section
Pond 007a
Sedimentation Pond Summary
Surface Mines -Surface Water Management Plan
SEDCAD output for Pond 007a and Ditches D71, D72, D73, D74, D75,
D76, and Culvert LWAA.
Fill 7 and Pond 007a area working map (information only) /UDT /NCLUDEj~
Jeff Canyon Surface Mine -Fill Areas -Ditch Summary
I will be at the LCC mine site on Friday, January 11, 2002, and plan to call you to
discuss any additional comments you may have. Thank you for the help.
Sin rel ~L~ J~
K. M. Kolin
5231 South Quebec Street • Greenwood Village. Colorado 80111
Phone [phone] • Fax [phone]
Web Site: www.greystone-consultants.com • E-mail: [e-mail]