WSP02356

• File Number: 8273.100
• Description: Colorado River Basin Salinity Control - Federal Agencies - Bureau of Reclamation
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 10/1/1987
• Author: DOI BOR
• Title: Salinity Update - October 1987 - A Quarterly Report on the Colorado River Water Improvement Program
• Water Supply Pro - Doc Type: Publication

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Colorado Front Range
seafood market
assessment

To explore possible beneficial
uses of saline water, Reclamation
developed a research contract
with Colorado State University to
investigate the potential use of this
water for aquaculture purposes.
Specifically, a study was designed
to evaluate the feasibility of raising
saline tolerant species of finfish
and shellfish in water from the
Glenwood-Dotsero Springs area.
Several species of finfish and
shell-fish were tested for growth
and survival in the Glenwood-Dot-
sero Springs water and several in-
cluding striped bass, white shrimp,
and rainbow trout proved to be
promising candidates for culture in
the highly saline water. Other
species have been tested by
Reclamation.
Prior to selecting additional
species for testing, it became ap-
parent that an overview of the
potential of saline aquaculture in
Colorado was needed. In light of
this, a study was conducted by
the Colorado Cooperative Fish &
Wildlife Research unit to (1) as-
sess present per-capita consump-
tion of food fish along Colorado's
Front Range and in particular, in
the Denver metropolitan area, (2)
estimate the present wholesale
and retail value of food fish in this
area, and (3) determine recent
trends or patterns in consumption
of finfish and shellfish in the front
range and Denver metropolitan
area and project future changes in
the market based on these trends.
The demand for seafood and re-
lated products is increasing along
the Front Range and elsewhere in
Colorado. Considering the active,
health-oriented life styles many
Coloradoans subscribe to, it is

likely the seafood market will con-
tinue to grow. While per-capita
consumption of seafood in the
area lags somewhat behind the na-
tional average, recent trends in the
marketplace can be expected to
narrow this gap.
Among those species identified
by area wholesalers as being
strong contenders in the local
market, several clearly have the
potential for propagation in a
saline aquaculture setting and of
contributing to Colorado seafood
markets. The possibility of produc-
ing commercial quantities of uni-
que high quality species not com-
monly cultured in the state is in-
triguing. The magnitude of such
an industry in Colorado remains to
be seen and is largely dependent
on commercial development of
suitable saline water sources and
further identification and testing of
species ammenable to culture in
this type of water.
Excerpted from the report prepared
by Eric P. Bergersen and John P. Wood-
ley, Colorado Cooperative Fish and
Wildlife Research Unit, Colorado State
University, Fort Collins, Colorado.

Etiwanda
ion-exchange
pilot-plant report
released

A memorandum report covers
IX (ion-exchange) work done at
the Southern California Edison,
Etiwanda power generating station
during the fall of 1986 and early
spring of 1987.
The report confirms that IX sof-
tening of cooling tower make-up
feed water, using cooling tower
blow-down as the sole regenerant,
is practical. Because of early

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cutoff of testing due to bUdget con-
siderations, not all objectives were
achieved. One of the original ob-
jectives was to test the process on
the potential feed water for the
proposed Harry Allen Powerplant
in southern Nevada. Also planned
were tests on a vertical tube
evaporator to further concentrate
the regenerant brines and tests to
evaluate any possible corrosion ef-
fects resulting from the IX process.
The results of this study provide
a major advance in using ion ex-
change softening of saline water
for use in powerplant cooling.

Seminar on Salinity

A seminar sponsored by the
Agricultural Research Service of
the U.S. Department of Agriculture
will be held November 16-17,
1987, at the Ontario Airport Hilton
Hotel, Ontario, California.
In recognition of the 50th an-
niversary of the Laboratory, a
program was designed to cover
(1) historical perspectives
presented by three former scien-
tists; (2) description of the present
ongoing research by Research
Leaders of the Laboratory; (3) six
state-of-the-art lectures by invited
speakers; and (4) three discus-
sions of future research needs.
The speakers have been asked to
prepare materials in a relatively
non-technical mode suitable for an
audience of varying scientific and
technical backgrounds.
Registratin for the seminar is
$25. For further information,
please write U.S. Salinity
Laboratory, ATTN: Gladys Greer,
4500 Glenwood Drive, Riverside,
CA 92501.

GPO 855 - ~23