2011-04-13_INSPECTION - M1979205

• Permit No: M1979205
• IBM Index Class Name: INSPECTION
• Doc Date: 4/13/2011
• Doc Name: Inspection report
• From: DRMS
• To: Oldcastle SW Group, Inc.
• Inspection Date: 4/7/2011
• Email Name: DMC
• Media Type: D
• Archive: No

PUMPING WORK
Task description: Dewater AM2 Mining, Area 1
Permit Action: 2011 Midterm Review Permit/Job#: M1979205
Site: Chambers Pit
PROJECT IDENTIFICATION
Task #: 001 State: Colorado Abbreviation: None
Filename: M205-001
Date: 4/12/2011 County: Garfield
User: DMC
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Quantity
Description 4
Make and Model: Centrifugal pum - 200M, 10 in. 3
Attachment 1: Suction pipe - 10 in. diam., 25 ft. 4
Attachment 2: Discharge pipe - 10 in. D., 25 ft. 1
Labor Unit 1: Pump operator
Horsepower: 70
Shift Basis: 1 per day
Weight: 1.95
(US Tons)
Cost Breakdown: Utilization %
Ownership Cost/Hour: $43.37 NA
Operating Cost/Hour: $66.63 100
Operator Cost/Hour: $19.42 NA
Total Unit Cost/Hour: $129.42
Total Fleet Cost/Hour: $129.42
pUMPING QUANTITIES
Conversion factor: 325850.5800
Initial Pond Volume: 333.54
Final Pond Volume: 1082684,202.45 gallons
Unit inflow rate in
Total Pond Inflow Surface
Area: 75,600 S9ft gph/sq. ft.: 0.3516
Total Pond Inflow Volume
per Hour: 26,580.96 gallons
Source of estimated volume: 18.53 ac. at 18 ft. depth
PUMPING TIME
Maximum Pump Capacity: 200,000 gph/pump
Estimated Suction Head: 10 feet
Estimated Discharge Head: 3 feet
Total Head: 13 feet
CPB Pump Capacity: 201,000 gph/pump
Site Altitude: 5,320 feet
Adjusted Pumping Capacity: 804,000 gph
Initial Unadjusted Pumping Time: 135.18 hours
inflow during Initial Pumping: 3,593,197 gallons
Net Unadjusted Pumping Time: 139.65 Hours
Altitude Adjustment Factor: 0.9400
67 (3% rule)
(55 min./hr.)
Pump Efficiency Factor: 0.91
Total Adjusted Pumping Time: 120.33 hours
JOB TIME AND COST Hours
Total job time: 120.33
Unit cost: $0.000139 /Gallon Total j ob cost: $15,574.00
CIRCES Cost Estimating Software