REP12123

• Permit No: C1983058
• IBM Index Class Name: Report
• Doc Date: 6/26/1990
• Doc Name: TWIN PINES 2 MINE PN C-83-058 CERTIFICATION OF NORTH SPOIL AREA
• From: TWIN PINES INVESTMENT LIMITED PARTNERSHIP
• To: MLRD
• Permit Index Doc Type: Waste Pile/Fill Report
• Media Type: D
• Archive: No

'-PROJECT Mine Spoil Pile TEST N°• 72339
CLIENT Falcon Energy, Inc., Gen. Partner, Twin Pines D;:.TE 6-14-90
Refuse Pile Investments, Ltd. JF
' SAMPLE LOCATION TEST gY
SOIL TYPE Coal Refuse __
110
100

90

z
w
0

~ 80
0
70
TYPE TEST
ASTM D-698 I SIEVE SIZE % PASSI~VG
MAX. DRY DENSITY 87 • 0 p°f
- I
- I /2 ,~
-~ OPTIMUM MOISTURE 20.5 , _ I~~ 100.0
~o
_~ - _ 3/4~~ 97. 6
- _-'- FRACTION USED-3~ - I/2" 97.6
--"- 3/g" 92.5
_---- MOLD SIZE .03333 cu. ft. _
_4 g?,0

.
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----- _._ _ 10 62.4
-----.._ ..... .
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.... .... _20 37.1

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' - 200 1 6. 3
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- --- - ~ --._ ..... .. ...............: -.0200
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-_:____ .__...- ... .._.. _.-.:._;.. ;_:'~ _ SPECIFIC GRAVITY
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LIQUID LIMIT
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MOISTURE - % DRY WEIGHT
~~'RTT~~-LII~ICOLN I GOL OR hDO~ COLORADO SPRINGS,
I W ~ DevGRE P:lE6L0, GLENN'OOD SPRINGS,
~I-Bq-IB' ENGINEERS• I GR4ND JUNCTION NONTROSE ,
GEOLOGISTS I1":'OMING: ROCK SPRINGS '