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peaking on an interconnected transmission system. The Shoshone plant was described above. The Green Mountain powerplant~ a part of the Colorado-Big Thompson complex, has an installed capacity of 21,600 kilowatts and is only 40 miles to the northeast of the Sweetwater Project area. The 56.400 kilowatt peaking capability of the Sweetwater Project would provide an extremely valuable addition to power in this area. The oil shale industry is expected to develop near Rifle, Cclorado~ 50 miles westoftheproject. Indications are that a city of 400,000 will develop in that vicinity. Chemical industries affiliated with the oil shale development will also require power. Although in- vestigations show that all the power production planned for the Sweetwater Project could be sold to the present Inarket, these additional developments should enhance the value of peaking capacity constructed in the project. VI/ater Service Consideration was given to the potential water-service market to water users diverting both upstreanl and downstream from the project. Present market conditions .are favorable for long-term contracts. Future possibilities are excellent for marketing any water not committed in the early years of operation. Upstream: As Colorado towns on the western slope of the :Rocky Mountains upstream from the project are very small, the upstream market for water service would be limited to irrigation in the Colorado River Basin, and to inadequately supplied municipalities on the eastern slope that could be serviced by mean s of trans- mountain diversions already constructed, under construction~ and planned, 2116 Irrigators upstream whose water-right priorities ar~ junior to those downstream from the project and who have water shortages should be interested in purchasing water service from the Sweet- water Project. As previously discussed herein under the section ,IWater )~ights.;1 Colorado law permits the diversion of water up- stream if water in like amount is replaced to the stream to supply the senior, or older, downstream rights. Irrigation water service could be sold by the Sweetwater Project within the following limi- tation: 1Vater releases from the project for irrigation purposes would have to be timed in accordance with the power requirements; only the releases coincidental to both uses could be ,marketed to irrigators. Downstream: Municipalities downstream from the project pre- sently have adequate water supplies~ but those diverting from the river are plagued by silt problems during the spring snowmelt and after heavy summer showers. A pipeline down the valley carrying the clear discharge fron1 the Dotsero Power plant would probably attract their business. Investment in such a pipeline~ however, would not be justified by the present population of the valley. Drawing No.1, page 2~ shows the location of tremendous oil- shale deposits downstream from the project. They lie exposed and readily available in hills and 700-foot cliffs along miles of escarpment. It is reported that the technical problems of extract- ing oil from shale have been solved to the point where it can now compete with petroleum extracted by means of wells. \\"orld sur- pluses have delayed oil production from shale, but the need for this industry as -a defense measure should soon put an 2nd to the postponement of its development. Predictions are that from two to four cities with a population of 400,000 each will be constructed in western Colorado to serve the 18