2010-09-10_GENERAL DOCUMENTS - C1981028

• Permit No: C1981028
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 9/10/2010
• Doc Name: Proposed Decision & Findings of Compliance for SL5
• From: Phase II for 51.05
• Permit Index Doc Type: Findings
• Email Name: RDZ
• Media Type: D
• Archive: No

Attachment no. 2:3-shank ripper
Data source :
(CRG)
Utilization %
Cost Breakdown:
Ownership cost/hour :
$66.25 NA
Dozer operating cost/hour :
$101.59 100
Ripper
operating cost/hour :
$8.11 100
Operator cost/hour :
$38.54 NA
Total unit cost/hour :
$214.49 Total fleet cost/hour :
$214.49
MATERIAL QUANTITIES
Selected estimating method :
Area
Alternate methods -
Seismic : NA NA Load factor:
NA Bank volume:
NA
BCY
Area : 12.20 acres
Rip depth (ft) :
1.50 Volume:
29,524
BCY or CCY
Source of estimated quantity: Permit boundary Map
Source of estimated load factor: NA
HOURLY PRODUCTION
Alternate methods -
Job Condition Correction Factors -
Seismic : Seismic velocity:
NA feet/second
Unadjusted production
Unadjusted production :
NA cu. yds. /hour
per selected method :
2,155.04
cu. yds. /hour
Area : Avg. ripping depth :
1.50 feet/pass
Site altitude :
5,000
feet
Average ripping width :
7.67 feet/pass
Altitude adjustment:
1.00
(Cat HB)
Average ripping length :
500.00 feet/pass
Job efficiency factor:
0.83
(1 shift/day)
Average dozer speed :
88.00 feet/minute
Net job correction :
0.83
multiplier
Average maneuver time:
0.25 minutes /pass
Production per unit area :
0.891 acres /hour
Adjusted unit production :
1,788.69
cu. yds. /hour
Unadjusted production :
2,155.04 cu. yds. /hour
Adjusted fleet production :
1,788.69
cu. yds. /hour
JOB TIME AND COST
Fleet size :
1 dozer(s)
Total job time :
16.51
hours
Unit cost:
$0.120 per cu. yd.
Total job cost:
$3,540