WSP00451

• File Number: 8273.100
• Description: Colorado River Basin Salinity Control - Federal Agency Reports - BOR
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 11/1/1969
• Title: Cost Analysis of Six Water Desalting Processes
• Water Supply Pro - Doc Type: Report/Study

III STUDY CRITERIA

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General Ground Rules

The ground rules for the study, summarized in Table 3, were
established by the Office of Saline Water with the agreement of

SRI representatives. A more detailed description of the basis used

for the calculation of each process is included in the sections for

the various,processes.

As can be seen in Table 3,

the energy unit
6
30;/10 Btu and

costs established for

this study were a steam cost of

an electric power cost

of O.45;/kwh. These costs were selected as being feasible for moderate

to large conversion plants in geographic locations where fuel, such as
6
natural gas" is available at 23;/10 Btu. As will be noted in the

following sections, future dual purpose nuclear power/water conversion

plants may produce energy at considerably lower rates in large plants

with favorable power-to-water ratios.

The interest rate was set at 4.63 percent by agreement with OSW
and financtng was considered to be by tax exempt municipal bonds.
The base plant equipment was considered to have a 30-year life and to

have no scrap value at the end of its life. Annual equipment replacement
items are included in the Supplies and'Maintenance Materials section

of the operating cost estimates for each process.

The land cost of $IOO,OOO/acre for seacoast locations was used in

preparing the cost estimates. This rate is representative of values on

the southern California shore. A land cost of $25,OOO/acre was used

for inland brackish water plants. It is recognized that land costs in

5

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