INSPEC40417

• Permit No: M1990057
• IBM Index Class Name: Inspection
• Doc Date: 10/9/2001
• Doc Name: RECEIPT FOR CERTIFIED MAIL
• Media Type: D
• Archive: No

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MINE ID # OR PROSPECTING ID # M-90-057
INSPECTION DATE 11/16/00 INSPECTOR'S INITIALS ESC
The tailings pond is approximately 1/3 acre in size. The small amount of material processed
last year was frozen and under snow cover. Trees from the pond embankment were removed last
year following the Divisions inspection. The operator will need to ensure that the pond
embankment is free of trees and shrubs as to not jeopardize the integrity of the dam.
Three waste rock piles were noted east of the mill structure. The operator will need to
revise the mill mine plan map in the form of a technical revision (no application fee
required) to depict the location of the waste rock piles and submit a proposed reclamation
plan. It should be noted that all piles must be located inside the permit area (6 .6 acres).
Please be aware that if this area exceeds the 8.5-acre permit area, a new permit application
will need to be filed (please note that an amendment to the permit is not allowed under a
Hard Rock/Metal Mine 110(2) permit). Attached is an application form for your use if filing
a new permit is needed.
The Division is reviewing the application to determine if the site meets the definition of
"Designated Mining Operations" as defined in Rule 1.1(14). Under the definition, it states
that metal mining operation, permitted under Section 34-32-110 which do not use or store
designated chemicals, shall be exempt from the requirements applicable to Designated Mining
Operations, unless they have a potential to produce acid mine drainage in quantities
sufficient to adversely affect any person, property or the environment.
Proper construction of the tailing pond is an important criteria to determine if there may
be adverse impact to any person, property or the environment. Condition #4 on the application
approval requires that the earth liner in the tailing impoundment be constructed with
material with permeabilities less than or equal to 2 feet per year. A minimum of 12 inches
of suitable material should be compacted to 95~ Proctor Density. Field run compaction data
should be submitted for each phase of the tailing disposal facility immediately after
construction. This information will assist in the Division's determination if the site meets
the definition of a "designated mining operation." The operator will be informed of the
Division's determination at a later date.
The following items will need to be addressed at the mill site;
3. The Division was unable to locate any permit boundary markers. Rule 3.1.12(2) requires
the boundaries of the affected area to be marked by monuments or other boundary markers.
The operator will need to mark the affected area and submit proof in the form of
photographs by January 19, 2000.
4. The operator will need to identify areas where temporary ore will be stored inside the
permit area, and how the area will be lined to prevent the contamination of surface water
and groundwater. Location and description of the temporary ore stockpiles and a
reclamation plan must be submitted to the Division in the form of a Technical Revision by
January 19, 2000.
Miscellaneous Issues
5. On June 5, 1990, the Division approved the Hopemore & Leadville Mine with four (4)
conditions to the permit. A copy of the conditions is enclosed for your review. The
Division has not received any of the information required by the conditions. Please
inform the Division the status of each condition noted on the approval letter by January
19, 2000.