OCR Text |
Show PART II PRESENT STATUS Table 6 - Summary of 1965 Municipal and Industrial Withdrawal Water Requirements and Depletions San Juan-Colorado Subregion ~~"~"~" Withdrawal Depletion Water Use_________________________Caere-feet)__________(acre-feet) Domestic 12,200 4,900 Manufacturing 3,800 600 Livestock 10,400 10,400 Governmental 3,900 300 Commercial & Other 3,800 1,400 Subregional Total 33,100 17,600 A population of 128,700 in the San Juan-Colorado Subregion (includes population in the hydrologic area of Arizona) had an average domestic withdrawal requirement of 85 gped. The average domestic depletion was 34 gped or 40 percent of domestic withdrawal requirements. These relatively low per-capita requirements can be attributed to a large Indian population within the subregion, amounting to nearly 50 percent of the total popula- tion for the hydrologic subregion. The per-capita water use for the Indian population is low, amounting to an average domestic withdrawal requirement of 28 gped and an average domestic depletion of 21 gped. These low requirements are largely due to a lack of adequate water distri- bution facilities. Within the economic boundaries of the San Juan-Colorado Subregion, which excludes primarily the Arizona drainage into the San Juan River, a population of just over 99,600 had a average domestic withdrawal require- ment of 96 gped and an average depletion of 30 gped. Domestic depletions for the Arizona portion of the San Juan-Colorado hydrologic subregion were 1,500 acre-feet in 1965; and livestock deple- tions were 1,100 acre-feet. Both requirements are included in the appro- priate water-use category figures given in Table 6. A high use-rate by the city of Page, Arizona and a low use-rate by a large number of Indians make up the 1,500 acre-feet per year of domestic depletion in Arizona. Manufacturing water requirements in the subregion were required primarily by refineries in the all other manufacturing sector; by dairies and meat packing plants in the food and kindred products industry; by saw mills and planing mills in the lumber and wood products industry; and by 16 |