Report 22 by R.U. Grozier, H.W. Albert, J.F. Blakey, C.H. Hembree, U.S. Geological Survey | May 1966

• Report 22 (pdf - 7.88MB) - Water-Delivery and Low-Flow Studies Pecos River, Texas, Quanity and Quality, 1964 and 1965
• Plate 1 (pdf - 1.47MB) - Map of Pecos River Watershed, Texas, Showing Water Discharge and Chemical Character of Water, March 3-5, 1964
• Plate 2 (pdf - 1.46MB) - Map of Pecos River Watershed, Texas, Showing Water Discharge and Chemical Character of Water, May 10-12, 1965