_PERMIT FILE - M2016010 ‎(2)‎

• Permit No: M2016010
• IBM Index Class Name: Permit File
• Doc Name: Adequacy Review Response #3
• From: Transit Mix Concrete Co.
• To: DRMS
• Email Name: AME
• Media Type: D
• Archive: No

Hitch Rack Ranch Phase III Surety Calculation Details
Project: Hitch Rack Ranch
Date: 07/05/16
Prepared by: Norwest Corporation
WORKSHEET 5
PRODUCTIVITY AND HOURS REQUIRED FOR DOZER USE
Earthmoving Activity:
Overburden.
Approximately 165,055 Icy of material calculated for Phase III Pit Floors, Roads, and Facilities.
Total volume calculated using Carlson software. No haulage of material needed.
Characterization of Dozer Used (type, size, etc.):
D10 Dozer
Description of Dozer Use (origin, destination, grade, haul distance, material, etc.):
Assume one dozer, average operator, loose stockpile, 50 min/hr, all pushing is flat(easy push), some
slot dozing possible, 180 foot average push.
Productivity Calculations:
Operator Adjustment Factor= 0.75 X 1.20 x 0.83 X 1.40 x 1.00
operator material efficienc grade weight
factor factor y factor factor correction
factor
X 1.00 X 1.00 1 X 1.00 = 1.05
production visibility elevation
method/blade factor factor
factor
Net Hourly Production = 1000 LCY/hr X 1.05 = 1046 LCY/hr
normal hourly operating
production adjustment
factor
Hours Required = 164,608 1 LCY — 11046 LCY/hr = 157 hr(s)
volume to be net hourly
moved production
Data Source(s): CAT Handbook Edition 43
Printed 9/26/2016 APPENDIX L-1 16