A Colorado School of Mines doctoral student's recently published findings on hydraulic fracturing wastewater analysis were featured in The Greeley Tribune. Karl Oetjen, a doctoral candidate studying hydrology at Mines, was one of the lead authors on the paper, “Emerging analytical methods for the characterization and quantification of organic contaminants in flowback and produced water," published in Trends in Environmental Analytical Chemistry. From the story: "Karl Oetjen, Mines doctoral candidate and one of the lead authors on the paper, published in August in "Trends in Environmental ....