Waste products from oil shale retorting and shale oil refining operations at the Bureau of Mines Oil Shale Demonstration Plant, Rifle, Colorado, were analyzed. Data useful in evaluating these wastes as possible stream pollutants were obtained and are presented. Of the organic constituents found, phenols are believed to be the most likely to cause a disposal problem. However, phenols and some other organic compounds probably would be partially recovered from waste streams because of their by product value. The inorganic substances present in these wastes should present little or no pollution hazard. Mixing and diluting several different types of waste streams as in scum pit or disposal pond treatment would make the composition of the final plant waste effluent unpredictable without a knowledge of the proportions and pretreatment of the several streams bulked. An actual evaluation of the stream pollution potential of a shale oil industry is thus beyond the scope of this report.