20250224GSW to Staff 28 Attachment 3.pdf

BITTERROOT WATER SYSTEM
WATER SYSTEM UPGRADES
BUILD-OUT 210 ERUs - 500 GPM FIRE FLOW
Engineer's Preliminary Opinion of Probable Construction Cost
September 22, 2022
Item Description Quantity Units Unit Price Amount
Mobilization (5%) 1 $88,300.00
Reservoir
Water Storage Tank 80000 Gal. $5.00 $400,000.00
Reservoir Site Work 1 LS $20,000.00 $20,000.00
Erosion Control Measures 1 LS $5,000.00 $5,000.00
Subtotal $425,000.00
Booster Pumping Facility
30 HP Booster Pump 1 EA. $30,000.00 $30,000.00
New Mechanical Piping and Valves 1 LS $10,000.00 $10,000.00
Electrical/Control 1 LS $20,000.00 $20,000.00
Subtotal $60,000.00
New Well #3
8" Public Well Construction 450 LF $250.00 $112.500.00
Well Pump Testing 1 LS $15,000.00 $15,000.00
Water Sampling and Testing 1 LS $2,500.00 $2,500.00
50 HP Well Pumping System 1 EA. $55,000.00 $55,000.00
New Wellhouse or Wellhouse Addition 100 SF $200.00 $20,000.00
Wellhouse Mechanical Piping and Valves 1 LS $20,000.00 $20,000.00
Electrical and Control 1 LS $20,000.00 $20,000.00
Subtotal $245,000.00
Backup Power
Generator Set (200 kW) 1 EA. $65,000.00 $65,000.00
Subtotal $65,000.00
Subtotal Construction Costs $883,000.00
Contingency(20%) $176,600.00
Engineering/Hydrogeo (15%) $158,940.00
Total Construction Costj $1,218,540.00
GSW-W-24-01
IPUC Staff PR 28 Attachment 3
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