WSP05382

• File Number: 8271.300
• Description: Colorado River Basin Salinity Control Program - General Information and Publications-Reports
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1975
• Title: The Natural Salinity of the Colorado River
• Water Supply Pro - Doc Type: Publication

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Figure 11. Castle Gate Formation and spoU pUe,
Castle Gate, Utah.

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Creek (Fig. 12). Irrigation water, diverted on the thin alluvium quickly
reaches the shale, and the return flow to the river is of very low quality. A
similar situation exists, or course, in Ashley Valley near Vernal, Utah
(Fig. 13), and in the Grand Valley area of Colorado, and the picture on
Ashley Creek shows coarse alluvium on the Mancos, and the salty return
flow to the stream.

Although the water used to wash coal at a plant below the city of
Price is recycled, and stored in a reservoir nearby, some of it may reach
the river by seepage, or in necessary drainage ditches (Fig. 14), lowering
the water quality in the stream. (Figure 14 shows a drainage ditch that
gets some water from the reservoir.)

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