INSPEC46448

• Permit No: M1986061
• IBM Index Class Name: Inspection
• Doc Date: 4/30/2001
• Doc Name: MINERALS PROGRAM INSPECTION REPORT
• Inspection Date: 4/19/2001
• Media Type: D
• Archive: No

• (Page 31
MINE ID k OR PROSPECTING ID !f M-1986-061
INSPECTION DATE 4/19/01
INSPECTOR'S INITIALS RCO
The pond does not yet exist, but should be designed such that it provides sufficient capacity and is accessible for
maintenance within the permitted area. Specific pond design features in the existing stormwater plan were reviewed.
Some sort of sediment trap should be utilized to avoid discharging sediment-laden water to areas offsite (the gulch).
The steep gradient path of the discharge below the pond to the gulch will have to be protected from further gully erosion.
Lafarge has imported several truckloads of oversize material Marge cobbles and small boulders, 4 to 16 inches in diameterl,
to armor the pond outlet or the steep drop into the gulch. An additional sediment filter might also be needed at the toe
of the drop. This riprapped drop into the gulch could be difficult to build and maintain, since discharge waters often move
outside the constructed channel or erode material adjacent to or under the armoring. This feature must be continually
monitored. At this time, the topic of strowater management plan is considered adequate.
The erosional feature in the highwall in Phase 2 was inspected. It has not deteriorated appreciably since last inspected
(10/26/001. However, it has not been adequately stabilized either. Several options for accomplishing this were discussed.
Most of the area upslope of the existing highwall is unmined, sloped grazing land, and outside the permit boundary.
Structural measures on the pit floor or the pit slope inside the permit boundary might be used to catch and control water
running into the permit from above. Or, structural measures installed above the pit slope, inside or outside the permit
boundary might be considered. One measure which could perhaps improve the grazing land above the mined area, plus
add to the land's ability to retain more precipitation and allow less runoff is range pitting or shallow contour ditches. On
the pit slope a riprapped channel might be used, though with the same attendant potential problems descibed above. A
small retention pond might be considered in the permit area, but above the slope. Some of these items might be
permanent or could affect offsite areas and should have the approval of the landowner and permittee, Mr. Cugnini. These
items were discussed with Mr. Carnahan, who then departed from the permit area.
The western highwall of the affected part of Phase 2 was inspected. It has not been fully mined to the west permit
boundary nor to the southern Phase 2 boundary. Above the southern end of the highwall slope, however, is apre-existing
private dump, which has heretofore not been identified in the permit file. It is in a small swale which has apparently been
used Iby the landowner?) for a long time to place household trash and farm debris, including livestock carcasses. The area
appears to be within the permit area, and future mining disturbance here should only be undertaken with care, to avoid the
hazards of handling the contents of the dump. Anv new relocation of the dump items must not be within the permit area,
since they contain outrescible materials and contaminants. Land within the permit area boundary is not approved as a
landfill under this permit.
Several areas containing noxious weeds were noted. These include the previously identified areas of knapweed along the
shoulder of the eastern outslope in Phase 1, plus knapweed at the top of the highwall in the northwest corner of Phase
1, and knapweed above the western highwall shoulder in Phase 2. The operator has revised the permit to include a noxious
weed control plan, which is to begin this season. These areas will be monitored by the Division and the operator.
There were no further items noted during this inspection. For all questions or responses to this report, please contact this
inspector at the following address or phone: 701 Camino del Rio, Room 125, Durango CO 81301; tel [phone] or
fax [phone].
I & E Contact Address
NAME
OPERATOR
STREET
CITY/STATE/ZIP
Patrick Cuonini
677 3rd Avenue
Durango, CO 81301
cc: Tom Gillis, DMG
^ CE
^ BL
^ FS
^ HW
^ HMWMD (CH)
^ SE
^ WOCD ICHI
^ OTHER
cc:
Don Gosney, Gosney and Sons, P.O. Box 367, Bayfield, CO 81122
Matt Carnahan, Lafarge Corp., P.0. Box 1400, Bayfield, CO 81122