ENFORCE24504

• Permit No: C1983059
• IBM Index Class Name: Enforcement
• Doc Date: 5/6/1993
• Doc Name: CALCULATION OF FINE COAL STOCKPILE
• From: DMG
• To: FILE NOV C-93-059 TERROR CREEK LOADOUT
• Violation No.: CV1993066
• Media Type: D
• Archive: No

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STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1 J 1 l Sherman Sl., Room 215
Denver, CO ft0203
Phone [phone]
FAX:(303)83'_-8106
DATE: May 6, 1993
TO: File NOD C-93-059
Terror Creek Loadout
FROM: Chriatiae E. Johnsto
RE: Calculation of fine coa stockpile
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Roy Romer
Goeernor
Michael B. LOnF
Oivi Sion Oireclnr
The Division issued a violation to Terror Creek Company (TCC) on
April 22, 1993 for exceeding the maximum amount of fine coal in a
stockpile. The Air Emissions Permit #82DL343 (-1F) states that the
fine coal stockpile shall not exceed 5,000 tons.
TCC provided me a printout of their stockpile and inventory
analysis from April 1, 1993 to April 21, 1993. According to this
printout TCC has a total of 15,285.133 tons of coal stockpiled on
site. This inventory analysis does not break-up the amounts of the
various sizes of coal that TCC has on site. They did have about
1800 tons of fine coal in train cars (95-100 tons of coal per train
car in five cars). This amount was subtracted from the total
stockpiled coal to obtain:
15285.133 tons total coal stockpiled
1800.000 tons in train cars
13485.133 tons of coal stockpiled on ground
At the time of the inspection TCC, in addition to a fine coal
stockpile, had stockpiles of raw, finished, and lump coal. These
piles were fairly small; therefore, it was determined that the
majority of the coal stockpiled on the ground was in the fine coal
stockpile.
Kelly Fritzler, the operations manager on site, estimated that
there was approximately 12,000 to 15,000 tons of fine coal in the
stockpile. I also took some rough, conservative measurements of
the pile. The pile was odd shaped, as can be seen in the
photographs, so I obtained a circumference of the pile along with
slope measurements taken in different areas of the pile. I also
estimated the height of the pile. My measurements are shown on the
attached portion of Map 5, the Facilities Map. The scale of the
map is 1" = 50'. I obtained volumes for the pile using the formula
for a cone and a paraboloid. I assumed that 1 cubic yard of coal
equalled 1700 pounds.