OCR Text |
Show -10- from daily observations of the height of the river at Yuma. I believe that the Colorado River will furnish an ample supply for all irrigable lands that can be reached by its waters, and at the lowest stage it will at least fill two such canals as the one you propose to build. wuaateryof ^n tne development of any irrigation enterprise, the quality of the water is of vital importance. Many waters, used for irrigation, hold in solution salines, alkalies or other substances that are injurious to vegetable growth, while, on the other hand, certain streams carry in suspension and solution available quantities of fertilizing materials, that become a factor of great value in the production of plant life. Referring again to Exhibit B, the analysis of the Colorado River water, Table 4, it will be seen that the estimated amount of fertilizing materials carried in each acre-inch of water, has a commercial value of 25.2 cents. The acre-inch is a body with a surface area of one acre, and a depth of one inch. It is probable that we shall require a depth of 36 inches for the successful cultivation of the Salton lands, and on this basis, the value of the fertilizing materials deposited on each acre would be $9.07 per annum. As a matter of fact, we shall not give to the lands this entire value, since a portion of the valuable materials will be removed from the canal |
Source |
Original book: [State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants, United States of America, State of Nevada, State of New Mexico, State of Utah, interveners] : California exhibits. |