INSPEC01267

• Permit No: M1980146
• IBM Index Class Name: Inspection
• Doc Name: MINERALS PROGRAM INSPECTION REPORT
• Inspection Date: 8/18/1995
• Media Type: D
• Archive: No

• (Page 21 •
MINE ID # OR PROSPECTING ID # MAO-146
INSPECTION DATE 8/18/95 INSPECTOR'S INITIALS WHE
OBSERVATIONS
This complete inspection was conducted by Wally Erickson from the DMG field office in Durango. Mr. Jack Gilliland, C & J Gravel,
accompanied the DMG inspector throughout this inspection. The operation is located approximately 6 miles southeast of Durango,
on Colorado highway 160.
The mine identification sign was evident from highway 160 and displayed the required information. The perimeter of the affected
area was marked on the north and west sides by barbed wire fence end on the northeast by an access road for a gas pipeline. Gas
pipeline location markers were intact, mining activities were clear of the pipeline. The operator stated that mining activity will
progress to the north, west and east. As the affected area extends beyond its present location, additional perimeter markers will
be required. Rule 3.1.12121 of the Mineral Rules end Regulations requires that the boundaries of the affected area be marked by
monuments or other markers that are clearly visible end adequate to delineate such boundaries.
The mining operation has extended to the east through the ridge line and daylights with the natural slope. Existing highwalls vary
in height from 30 to 50 feet, no evidence of highwall instability was found. The highwall on BLM land had been backfilled to
approximate 3:1 slope, vegetative cover on the backfilled slope appeared sparse and weedy. Evidence of minor erosion was found
on the backfilled slope. The operator needs to perform weed control measures on the backfilled slopes. Rule 3.1.10161 states that
weed control shall be employed for all prohibited noxious weed species, and whenever invasion of a reclaimed area by other weed
species seriously threatens the continued development of the desired vegetation. Weed control methods shall also be used
whenever the inhabitation of the reclaimed area by weeds threatens further spread of serious weed pests to nearby areas. A list
of noxious and problem weeds end control techniques for these species can be obtained from the County Extension Service, the
County Weed Control District Office, or the local office of the Soil Conservation Service.
Several temporary fuel tanks were located on site. Fuel tanks appeared intact, no evidence of rupture or leakage, except for minor
fuel spilt at hose nozzle associated with refueling equipment. Discarded pieces of equipment, in various stages of dismantlement.
were stockpiled at a location northeast of the former asphalt plant. Several 55-gallon drums, containing lubricants, were located
within the stockpiled equipment. All drums located were inspected. All drums inspected appeared to be intact, no evidence of
rupture or leaking was found. Evidence of minor spillage was observed associated with lubricant refilling of equipment. All fuels,
lubricants, and chemicals need to be stored in a controlled manner, at a designated location, with adequate spill prevention and spill
containment controls. Spill containment controls typically include measures such as construction of a containment berm surrounding
each fuel tank or fluid storage area. Berm surrounding each fuel tank should enclose sufficient area to ensure containment of
volume equivalent to tank capacity. Containment areas should be lined with en impermeable liner to ensure spilt fuel or fluids not
escape and degrade quality of ground and surface waters (Rules 3.1.6 and 3.1.71. It should be noted that the financial warranty
for the operation will need to be recalculated, including costs for disposal of dismantled equipment and discarded fluids, should they
remain on site.
In 1987, the U.S. congress amended the Clean Water Act to expressly include storm water discharges from industrial sites es
requiring Clean Water Act controls. In 1990, EPA issued regulations that require specific industrial activities to obtain permits in
order to discharge storm water from their facilities. Active and inactive mining operations where storm water comes into contact
with overburden, raw materiel, intermediate products, byproducts, finished products or waste products located at the mining site
are specifically included. The deadline to apply for a storm water permit was October 1, 1992. If a storm water permit for this
mine has not yet been obtained, the operator must apply for such a permit, as soon as possible, to Colorado Department of Health,
WOCD-PE-B2, 4300 Cherry Creek Drive South, Denver, Colorado 80222-1530. Call Dan Beley or Kathy Doland 13031 692-3596
of WOCD for additional information. If any storm water control structures are required to be constructed at the mine as a result
of the storm water permitting process, a revision must then be submitted to this Division to include the operational and reclamation
aspects of such structures in the Reclamation Permit.
I & E Contact Address
NAME Jack Gilliland
OPERATOR C & J Gravel
STREET 514 County Road 509
CITY/STATE2IP lanaeio. CO 81137
cc: Tom Gillis, DMG
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