WSP11096

• File Number: 8273.100
• Description: Colorado River Basin Salinity Control - Federal Agency Reports - BOR
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1998
• Title: Salinity Management Study - Final Report - DRAFT - June 1998 - Part 1 of 2 - Title Page through
• Water Supply Pro - Doc Type: Report/Study

USBR/MWD SALINITY MANAGEMENT STIJDY
FINAL REPORT

Figure 2-20

Useful Life of Household Water Heaters

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TDS (mg/L)

The economic model calculates the "incremental" benefits or impacts of SWP and CRA
salinity changes compared to a selected baseline condition. The economic impact functions
employed (e.g. the effect of TDS on water heaters, strawberries, cooling towers, etc.) were
developed based on several approaches including studies, consumer surveys, interviews of
contractors and experts, and engineering judgment. All of the cost factors employed (e.g.
price of water heaters, water rates, reverse osmosis costs, etc.) were obtained from retail
stores, warehouses, available reports and publications, engineering cost estimates, and Local
Resources Program files.

SWP BENEFITS AND IMPACTS

Figure 2-21 depicts the range of "incremental" economic consequences of SWP salinity
changes when CRA salinity is fixed at 700 mg/L. While there may be economic benefits when
the SWP salinity is below 100 mg/L, this graph shows the "incremental" impacts of SWP
salinity compared to 100 mg/L. Historically, the average annual salinity of SWP has never
been below 100 mg/L.

BOOKMAN-EDMONSTON Section 2
ENGINEERING, INC. 2-22 Salinity Problems, Impacts, & Technology
O:\LOCALRES\ANDYS\SALINlTYVUNE9S-2\6SECTI.DOC Last printed 07120/98 10: 17 AM

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