Useful Documents July 2019(1) U.S. Environmental Protection Agency, EPA-821-R19-001, “Study of Oil and Gas Extraction Wastewater Management Under the Clean Water Act”. Draft May 2019. It may be useful to read a related article that discusses the EPA report. The article was written by G. Higdon, “Produced Water Management: Is EPA Laying the Foundation for More Options or More Regulation?”(2)Ground Water Protection Council, “Produced Water Report: Regulations, Current Practices, and Research Needs”, June 2019.(3)K. Esyra et al, “Removal of oil from Polymer-Produced Water by Using Flotation Process and Statistical Modelling”, Journal of Petroleum Exploration and Production Technology, May 2019.(4)X. Liu, “Research Progress on Treatment Technology of Produced Water by Adsorption Method”, IOP Conference Series: Materials Science and Engineering, vol. 472, No. 1 (2019).(5)C. H. Wu et al, “On Naphthenic Acids Removal from Crude Oil and Oil Sands Process-Affected Water”, Fuel, 253 (2019). This is a review article on the subject.(6)R. R. Nair, “Smart Water for Enhanced Oil Recovery from Seawater and Produced Water by Membranes”, a PhD thesis, University of Stavanger, 2019. (7)T. D. Kusworo et al, “Performance of Ultrafiltration – Ozone Combined System for Produced Water Treatment”, Periodica Polytechnica Chemical Engineering, 63(3) (2019) 438.(8)B. Adokou, “The Opportunity and Threat Posed by US Shale Water”, Oil and Gas Facilities, June 2019. (9)S. Whitfield, “Integration, Collaboration Drive Water Midstream Growth in Permian”, Oil and Gas Facilities, July 2019. (10)S. Whitfield, “Produced Water May Provide Relief for Declining US Water Supplies”, SPE, June 2019. (11)B. Wright, “Innovation, Ingenuity Drive Changes in Handling Produced Water”, March 2019. There are a few more articles related to shale oil produced water management at the end of the article if interested. (12)P. C. Silva et al, “Oil Produced Water Treatment Using Advanced Oxidative Processes: Heterogeneous-Photocatalysis and Photo-Fenton”, Journal of Sedimentary Environments, March 2019. Click the “Download” available when the link is open.(13)A. A. Hassan and K. M. M Al-zobai, ”Chemical Oxidation for Oil Separation from Oilfield Produced Water under UV Irradiation Using Titanium Dioxide as a Nano-Photocatalyst by Batch and Continuous Techniques”, International Journal of Chemical Engineering, June 2019. (14)L. Wagner, “Quantitative Produced Water Analysis using Mobile 1H NMR”, a PhD Thesis. The University of Western Australia, January 2019. (15)S. Whitfield, “Addressing the Gaps in Subsea Produced Water Treatment”, Oil and Gas Facilities, May 2019.