(GP/GT) for Additional Water Supply in the Lower Rio Grande

111-10
PRO-FORMA CALCULATIONS FOR ELECTRODIALYSIS REVERSAL PROCESS (EDR)
Cost Elements
Capital
Costs/{Sx 10(0)
Annual
Costs/Ix 1 000)
Water Costs,
S/l.OOOn'
Capital Costs
1.
2.
3.
4.
5.
Plant and Equipment(2)
Feedwater Pretreatment(2)
Feedwater SupplyOl
Water Transmission
Brine Disposal
4 925
600
l.6OO
780
1.388
446·94
54.45
145.20
70.79
125.96
02709
0.0330
0.0880
0.0429
0.0763
Total Capital Costs
$ 9,293.00
$ 843.34
$ 0.511 1
Operation and Maintenance Costs
6. Operating and Maintenance Labor
a. Plant and Equipment(2)
b. Feedwater Pretreatment
c. Feedwater Supply
d. Water Transmission
e. Brine Disposal
$/1.000 gal.
0.050
0.036
0.026
n.r. (I)
0.200
Total Operating and Maintenance Labor
$ 0.312
7.
Other Operation and Maintenance Costs
a. Payroll Extras (15% of 6a)
b. General and Administrative Overhead (30% of 6a + 7a)
c. Supplies and Maintenance Materials
d. Membrane Assembly or Replacement Tubing(2)
e. Chemicals(2)
f. Fuel or Steam
g. Electric Power
Plant and Equipment(2)
Feedwater Supply
Water Transmission
0.008
0.017
0.030
0.200
0.030
n.r!)
0.392
0.108
n.r!)
Total Other Operation and Maintenance Costs
$ 0.785
Total Operation and Maintenance Costs
$ 1.097
Total Water Cost (fotal Capital Plus O. & M. Costs)
$ 1.6081
(1) none required
(2) Bued on recent information from lonics, Inc., with an assumed water recovery factor of 80% and adding a factor of 20% to cover
indirect capital costs comprised of interest during construction, engineering and contingencies, and factor for land costs.
(3) Based on a recent study by R.W. Harden Assoc. Total of 10 wells and a land cost factor