Bid Package 08 North Well Field - Garney Construction

Specification Section 11210, Appendix A
Vertical Turbine Submersible Pumping Units
Ward County North Well Field
Preliminary Pump Assumptions
Assumed Column Pipe Projected Water Depth Pump Well Friction Pipeline Head Loss* Assumed Static Casing Top of Bottom of Total Column Pump Motor
Pumping Flow Velocity Level During to be Set Head Loss and Delivery Pressure TDH Calculated Nominal Water Level Diameter Screen Screen Well Depth Pipe Suction Voltage
ID Rate (gpm) (ft/s) Pumping (ft bgs) (ft bgs) (feet) (feet) (feet) Input Hp Hp (ft bgs) OD (in) (ft bgs) (ft bgs) (ft bgs) Size (in) Depth (ft bgs) (volts)
D1 280 7.1 312 452 29 97 437 51.6 60 198 16 342 640 650 4 452 480
D2 660 7.5 250 390 18 90 357 99.3 125 180 16 280 438 448 6 390 480
D3 500 5.7 418 560 15 96 529 111 125 182 16 448 627 637 6 560 480
D4 300 7.7 170 310 22 134 326 41.2 50 96 16 200 386 396 4 310 480
D5 540 6.1 300 440 13 105 419 95.3 100 6 480
D6 360 4.1 323 457 6 128 457 69.3 75 138 16 353 673 683 6 457 480
D7 580 6.6 270 410 14 144 428 104.6 125 6 480
D8 770 8.7 190 330 20 126 337 109 125 112 16 220 552 562 6 330 480
D9 330 8.4 240 380 33 136 409 56.8 60 130 16 270 614 624 4 380 480
D10 400 4.5 256 396 7 134 396 66.8 75 148 16 286 610 520 6 396 480
D11 900 10.2 272 403 33 119 424 161 175 120 16 302 750 760 6 403 480
D12 700 7.9 251 391 20 144 415 122 150 124 16 281 611 621 6 391 480
D13 630 7.1 328 468 19 149 496 132 150 133 16 358 638 648 6 468 480
D14 850 9.6 271 411 30 149 451 161 175 94 16 301 571 581 6 411 480
D15 1030 6.6 206 384 10 147 363 157 175 95 12 236 752 762 8 384 480
D17 450 5.1 220 360 8 161 388 73.6 100 109 16 250 488 498 6 360 480
D18 1100 7.0 248 395 12 143 403 187 200 148 12 278 659 669 8 395 480
D19 900 10.2 260 400 33 136 429 163 175 6 480
D22 250 6.4 200 310 16 151 367 38.6 50 130 12 230 322 332 4 310 480
D23 330 8.4 267 407 35 154 456 63.5 75 112 16 297 560 570 4 407 480
D24 380 9.7 271 398 45 147 464 74.3 100 151 16 301 730 740 4 398 480
Optional Supply Well Pump Designs
P1 1400 8.9 250 400 19 470 277 300 8 480
P2 1300 8.3 250 400 16 440 241 250 8 480
P3 1150 7.3 250 400 13 450 218 225 8 480
P4 1400 8.9 250 400 19 320 189 200 8 480
Total 12,240 GPM * Pipeline head loss modeled by Freese & Nichols for pumping Conversion Factors Assumptions
Total 17,625,600 GPD directly to Base 21 (Scenario B). 7.5 gallons per cubic foot 75% pump efficiency
Total 17.63 MGD 60 seconds per minute 80% motor efficiency
** TDH and Pumping Rates take priority in pumping unit sizing. 550 ft*lbf/s/hp 60% overall efficiency
gpm = gallons per minute The Calculated Input Hp and Nominal Hp displayed on the table 12 inches per foot 25% increase due to minor losses
ft/s = feet per second are for reference purposes and are based on assumed pump 2.31 feet water per psi 62.4 lb/ft 3 , unit weight of water
ft bgs = feet below ground surface and motor efficiencies. 32.2 ft/s 2 , acceleration of gravity
TDH = total dynamic head
1.2E-05 ft 2 /s, kinematic viscosity
Hp = horsepower
1.E-03 relative roughness
in = inches
20 psi, delivery pressure
1/18/2012