ENFORCE25182

• Permit No: M1990070
• IBM Index Class Name: Enforcement
• Doc Date: 7/29/2004
• Doc Name: Staff Presentation
• Media Type: D
• Archive: No

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CONSTRUCTION MATERIALS EXTRACTION
Presentation Form
GENERAL INFORMATION
Inspection Date:
File No.:
Permittee:
Operator:
Existing Bond:
Method of Mining:
April 8 & 26, 2004
M-1990-070
San Juan County
San Juan County
NA
Conventional Excavation
Permit Type:
Permitted Acres:
Commodity:
County:
Adequate?:
Specialist:
110c
3 acres
Sand & Gravel
San Juan
NA
Wally Erickson -%'
NATURE OF VIOLATION(S)
According to the approved mine plan, material was to be removed from the base of an alluvial fan
while maintaining a 3H:1 V to 4H:1 V slope. Mining activities were to push material down slope from a
previously established bench in the fan. The bench was described as being 400 feet long and
located approximately 60 feet above the base of the fan. Mining activities removed the bench but
then continued by excavating material from the toe of the slope. The result of excavation from the
toe of slope has produced steep slopes, estimated at 1 H:1 V and steeper. The steep slopes above
the excavation site exhibit evidence of instability. Active slumping has progressed approximately 200
feet above the toe of slope and approaches County Road 25. County Road 25 traverses the alluvial
fan approximately 300 feet above the toe of slope. Response from the operator, dated June 2, 2004
and received June 15, 2004, verifies that the slump scarp has advanced beyond the permit
bourdary.
SERIOUSNESS
Administrative -
Onsite damage -The chosen post-mining land use, rangeland, requires slopes no steeper than
3H:1 V. The steep slopes created by the excessive excavation may prohibit the operator from
accomplishing the requirements of the approved reclamation plan.
Offsite damage -Slump scarp has advanced beyond the permit boundary. Potential exists for
continuation of slumping and sloughing of material regardless of cessation of mining activities.
Health or safety hazard -The excessive mining activities appear to have undermined County Road
25.
STATUTE(S) VIOLATED AND DESCRIPTION
Section 34-32.5-116(4)(1) of the Colorado Land Reclamation Act for the Extraction of Construction
Materials, 34-32.5-101 et. seq., C.R.S.
Construction Materials Rule 3.1.5(3)