Application of ICP-OES for evaluating energy extraction and production wastewater discharge impacts on surface waters in Western Pennsylvania Figure 2 data (Pancras et al., Science of the Total Environment 529 (2015) 21–29). This dataset is associated with the following publication: Pancras, J.P., G. Norris , M. Landis , K. Kovalcik , J.K. McGee , and A. Kamal. Application of ICP-OES for Evaluating Energy Extraction and Production Wastewater Discharge Impacts on Surface Waters in Western Pennsylvania. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, NETHERLANDS, 529: 21-29, (2015).