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Quality of water in Colorado River in 1925-1926
W. D. Collins, Charles S. Howard
1928, Water Supply Paper 596-B
Most of the analyses given in this report represent composites of daily samples collected by the observers at United States Geological Survey gaging stations on Colorado River at Grand Canyon and Topock, Ariz. These stations are operated under the direction of W. E. Dickinson, district engineer of the Geological Survey...