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<br />. <br /> <br />. <br /> <br />. <br /> <br />.. <br /> <br />DC12C5 <br /> <br />acres at Class 2 lands not now irrigated, but suitable for irrigation if <br /> <br /> <br />adequate water supplies were available. The survey also showed some 2,400 <br /> <br /> <br />acres of presently irrigated land which is of marginal productivity. This <br /> <br /> <br />marginal acreage, however, could be easily replaced by Class 1 lands not <br /> <br /> <br />now irrigated vdthout further extension of the existing irrigation facili- <br /> <br /> <br />ties. <br /> <br />15. The water supply for the presently irrigated land is derived <br />almost entirely from the Purgatoire River. The flows of this stream are <br />quite erratict ranging from periods of virtually no flow to floods of con- <br />siderable magnitude. Except for limited storage in the model Reservoir <br />and Johns Lake which supply about 5,000 acres of the irrigated area, no <br />storage or regulation is available for the flows of the Purgaroire River. <br />Consequently, no dependable fully regulated water supply is available for <br />the project lands. Although the total average annual amount of water sup- <br />ply of the Purgatoire River, diverted to the presently irrigated lands is <br />adequate to meet irrigation requirements, the lands fall far short of maxi- <br />mum productivity beoause of the undependable, untimely and erratic nature <br />of this water supply. Increased facilities for the storage and regulation <br />of the flows of the Purgatoire River are essential if the project lands <br />are to produce orops commensurate with their capability. <br />16. The present population and econo~ of Trinidad and the adjacent <br />