2008-08-06_REVISION - C1982057

• Permit No: C1982057
• IBM Index Class Name: REVISION
• Doc Date: 8/6/2008
• Doc Name: Midterm Review Reclamation Cost Estimate
• From: DRMS
• To: Seneca Coal Company
• Type & Sequence: MT5
• Email Name: DTM
• Media Type: D
• Archive: No

CIRCES Cost Estimating Software
BULLDOZER WORK
PROJECT IDENTIFICATION
Task #: 009 - State : Colorado Permitrjob# : C-1982-057
Date : 08/05!2008 County: Routt - Abbreviation : none
User : JRS Site : Seneca li-W Filename : 0057-009
Agency or organization name : Colorado Division of Reclamation, Mining And Safety
-
---•- - -- - - - ------- .-._^- --- ?...._-.---
-- R-eview
Permit or other job action :2008 Midterm--
Task description : Doze South Wadge Pit Highwall - Partially Back ill Pit
HOURLY EQUIPMENT COST
Basic machine. Cat D1 1R - 11U (2005) - Horsepower : 850
_
Blade type : Universal
Attachment no. 1 : ROPS Cab Shift basis : 1 per day
Attachment no. 2 :3-shank ripper
" Utilization % ----..___..--__---
Cost Breakdown : Ownership cost/hour : $174.40 NA
Operating costihour : $225.78 100
Ripper op. cost/hour : $0.00 0
Operator cost/hour : $32.78 NA
Total unit cost/hour : $432.96 Total fleet cost/hour : $1,731.83
MATERIAL QUANTITIES
Initial Swell Loose
volume : - 553,400 LCY factor : NA volume : 553,400 LCY
Source of estimated volume :Division Estimate
Source of estimated swell factor : NA
HOURLY PRODUCTION Job Condition Correction Factors Source
Operator skill : 0.75 (avg.)
Average push distance: 100 feet
-- Material consistency : 1,20 (Cat HB)
Unadjusted hourly production : 2,870.3 LCY/hr Dozing method : 1.10 (50% s!)
Visibility: 1,00 (avg.)

Material consistency description
: _.
Job efficiency : ._..._._.._.._._....___-.._..
0.83 -t-.--._..__..._...._._.
(1sh?tt/day)
Loose stockpile - --
--... _ .... Spoil pile :
- 0.90
-- -----------
._._.. (ssd-fc)

Push gradient :
.
1.22 _
._..,_ (Gat HB -
)

Average push gradient :
10_,00 ?b (ne9)-.-.
--- ..._.:
Attitude : _..._ -....
0,93 -
i
H$)
(Gat

Average site attitude
:
8,000 feet
_
Material weight :
_
_ .. -- . ,.
0.90
...
-- _ ..
-- .---
(Cat HB)
j Blade type : 1.00 (S/SU/U)
Material weight : 2,550 Ibs/LCY Net correction : 0.76
Weight description :
Sandstone Adjusted unit production : 2181.17 LCY/hr
Adjusted fleet production : 8,724.69 LCY/hr
JOB TIME AND COST
Fleet size : 4 Dozer(s) Total job time 63.43 Hours
Unit cost : $0.198 /LCY Total job cost : $109,849