WSP11855

• File Number: 8220.200.09.J
• Description: Navajo Project
• State: AZ
• Basin: Colorado Mainstem
• Date: 10/7/1970
• Author: Holburt Myron B.
• Title: Method of Handling Blowdown Water at Navajo Generating Station
• Water Supply Pro - Doc Type: Report/Study

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wide problem that is becoming important to users of Colorado River
water. Increased concern and a Sense of urgency co halt the salinity
increase have been e~pressed by Federal and State water resource
agencies.

Data collected to the present time indicates that approximately two.
t~irJ5 of tric tot~l salt ~urci~n at lioovcr Dam comeS iroln natural
sourceS. Of this load approximately 82 percent comes from diffuse
nourccs such as overland runoff and ground water inflow, and about
IS percent originates from point sources including mineral springs,
seeps, and abandoned wells.

The larGest point source contributors of dissolved solids to the
Upper Colorado River arc in the reach of the river between the mouth
of the Roarin3 Fork River at Glenwood Springs and the mouth of the
Eagle River near Dotsero. These contributions arc from thermal
sp~ing5 rising in or nea~ the bed of the riVer and irom ground vater
entcrinll tilts reach of the river. Inflow-outflow I:IeasurementS indicate
this reach of the river contributes approximately 25,000 acre-feet of
water containing over 500,000 tons of dissolved solids annually.

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PIZ44-4Z7-l4~A Colorado River ~ater Quality Improvement Program-Colorado
Hot I:I"ncral springs in the Dotsero area: View showing the flow frolD
sampling stations dot ZO, 30 and 40.
USSR Piloto by V. Jer:;ley February 22, 1973

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