2021-07-16_GENERAL DOCUMENTS - M2013026

• Permit No: M2013026
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 7/16/2021
• Doc Name: Structure Report
• From: Union Milling Contractors
• To: DRMS
• Email Name: DMC
• Media Type: D
• Archive: No

R2 INCORPORATED GEORGE M L ROBINSON
SWINOMMUfTA1 AND EMINEE"4G nxvic[s J ERICH RAUBER.PE
ST ATIGIGILLY FOSMONED-na4NIC 1 LY M IRA":,
July 14, 2021
Leadville Mill
4436 Zuni Street
Leadville, CO 80439
Subject. Engineering Report
Permanent Man-Made Structures
Hopemore Mine, Lake County, Colorado
Permit M1990-057
Owner. CJK Milling Company. LLC
Operator Union Milling Contractors LLC
Ladles and Gentlemen
L0 Introduction
At the request of CJK Milling Company(Hopemore Mine), R Squared, Inc has been retained to prepare a
permanent man-made structural engineering report pursuant to Colorado Division of Reclamation Mining
and Safety (CDRMS) regulations (Section 6 4 19 Exhibit S(b) and(c)) and a CRDRS inspectors request
i See Attachment 1) The regulations require the mill operator to notify adjacent landowners and other
entities who are within 200 feet of Hopemore Mine permit boundary when a permit or amendment is being
considered.
2.0 Background
1 he 9,9-acre htstoncal mine site is in the southeast quarter of the southeast quarter of section 20.
township 9 south, Range 79 west is at 2921 County Road 1, Lake County, Colorado The site is
approximately 3.5 miles east of Leadville at an elevation of 11.500 feet above sea level 1 he mine
property is on a 20-acre claim. 10 5 acres is an unpatented claim known as the Comstock and 9 85 acres
is patented and is known as the Robert Burns The claim is under the ludsdicbon of the U S Bureau of
Land Management Royal gorge District(BLM). The mine has been operating periodically from 190' to
the present
The mine is accessed by County Road No 1 where the mine permit boundary is approximately 300 feet
from the mine entrance Structures within the permit boundary include electrical and a telephone utility
line, two head frames. parking lot. a rock storage area, a septic system and an office building (See
Figure 1
3.0 Evaluations and Conclusions
The only permanent man-made structures within 200 feet of the permit boundary are a telephone line
owned by Century Link (See Figure 2) and unpaved county road The County road within 200 feet of the
mine is exclusively used for mine access On the basis of our observations and evaluations we conclude
that these structures will not be adversely affected by CJK's site activities i he mine is permitted in an
area zoned as Industrial/Commercial(mining) No trespassing signs at key locations have been posted
Blasting from exploration or mining will have little vibration effect on these types of structures The access
to the rnine will be maintained by the County and the mine operator Only authorized visitors and service
SmttMcally Petitioned- Technically Prepared"
9034 E Easter PI Suite 201,Centennial,Colorado 80112, p: [phone], f: [phone]