ENFORCE23328

• Permit No: C1983059
• IBM Index Class Name: Enforcement
• Doc Date: 7/26/1993
• Doc Name: NOV C93-066
• From: DMG
• To: FILE C-83-059
• Violation No.: CV1993066
• Media Type: D
• Archive: No

~~~ II~II~!I~II~I I~I
DIVISION OF MINERALS AND GEOLOGY
DepartmeN of NaWral Resources
1513 Sherman St., Room 215
Denver, CO 60203
Phone: [phone]
FAX:[phone]
DATE: July 26, 1993
T0: File No. C-83-059
FROM: Christine Johnsto
RE: NOY C93-066
The Division made an inspection of the Terror Creek Loadout on June 29,1993,
to determine if NOY C-93-U66 had been successful]y abated. TCC was to have
the fine coal pile reduced to a maximum of 8000 tons (maximum specified in the
Air Emissions Permit) by June 30,1993. It appeared that this pile had been
significantly reduced in size from the time that the violation was written.
Kelly Fritzler of Terror Creek Company estimated that the pile was
approximately 4000-5000 tons. I took some rough, conservative measurements of
the pile. The pile was odd shaped, so I obtained a circumference of the pile
along with slope measurements taken in different areas of the pile. My
measurements are shown on the attached portion of Map 5, the Facilities Map.I
obtained volumes using the formula fora paraboloid and determining the area
of a trapezoid base multiplied by the height of the pile to obtain the volume
of the pile.
Paraboloid
Y = 1/2 r2h
V = 1/2 (3.14)
V = 58,904cuft
:27
V = 2181.6cuyd
x17001bs
V = 1854 tons
pF' COQ
tip, 9
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Roy Romer
Gmernor
Michael B. Long
D rvisinn Director
STATE OF COLORADO
Area Trapezoid Base Method
A = d+b(h) = 100ft + 400ft (15ft)
(50ft)2 (15ft) ~` ~-
= 500(15) = 3750ft2
2
V = Al+A2(h)
2001bs 2
V = 3750x884 (15)
~-
V = 34, 755cuft
:27 = 1287ft x
= 1094 tons
17001bs 20001bs
Although my numbers are significantly less than what Mr. Fritlzer had
estimated, all estimates are below the 8000 ton limit. If an error was made
on my part, I believe the pile would still be below 8000 tons; therefore,
warranting termination of violation C-93-066.
jfg