EEMJ_991MJ_991 FC.inddFC.indd 991991 88/7/20/7/20 33:43:43 PPMM Improves productivity Eliminates unplanned stops Increases employee safety — Condition monitoring For mechanical components The ABB AbilityTM Smart Sensor for mechanical products is an easy-to-use, wireless sensor which monitors the health of mounted bearings and gear reducers. The sensor provides warnings when health status declines, reducing the risk of unplanned downtime. In addition, connectivity and trend data allow maintenance to be planned proactively instead of reactively, and remote monitoring capabilities keep employees away from areas that are difficult or dangerous to access. Operate safely. Reduce downtime. Improve reliability. new.abb.com AEEMJ_992BMBJ_E99_2M IFC.inddIJF_CC.oinndddit i o 9992n9 M2 onitoring for Mechanical Components_0320.indd 1 788/3/20/1/3//20 99:542::5149 AAMPM AUGUST 2020 • VOL 221 • NUMBER 8 FEATURES Machines That Help Reduce Dilution The top narrow vein mining solutions on the market offer an increased power-to-weight ratio, lower ownership costs and higher productivity ...........28 Mineral Processing Titans Merge Stephan Kirsch, president of Metso Outotec’s new Minerals Business Area, discusses the next steps for the business and new opportunities ..................34 Refining Gold Processing E&MJ looks at designs and technologies that are making gold flowsheets more efficient and economic .........................................................................36 Dealing With Data: Cybersecurity in the COVID-19 Era Working smarter and safer has become an industry creed for employee welfare. Companies should apply the same principles to data management. .....................52 Making the Right Call Idling production to improve mining conditions pays dividends ....................58 Dewater, Derisk, Deliver Dewatering is a vital component of safe, productive mining operations, but its role and impact are often misunderstood ...........................................60 This month, E&MJ reports record gold prices and offers ideas on how miners can recover more gold from existing Special Report: Mining in Peru systems. On the cover, gold miners are using high- The engine to rebuild an economy ..................................................................65 frequency vibrating screens to increase capacity, boost recovery and reduce overall water usage. (Photo: LEADING DEVELOPMENTS Derrick Corp.) Gold Field Greenlights Salares Norte .................................................................4 Rio Tinto Reveals Maiden Resource at Winu ......................................................4 Anglo American Maintains Production Despite COVID-19 .................................4 CEQ Issues Final Rule to Modernize NEPA Regulations ......................................5 Barrick Serves Notice of Dispute Over Porgera Mine ..........................................5 Alamos Announces Phase III Expansion for Island Mine ....................................6 DEPARTMENTS OceanaGold Reports Positive PEA for Waihi District ..........................................6 Calendar ...................................................... 26 Classifi ed Advertisements ............................ 94 AROUND THE WORLD Equipment Gallery ........................................ 90 U.S. & Canada: Cameco to Restart Cigar Lake Mine .........................................8 From the Editor................................................2 Latin America: Premier Gold Restarts Production at Mercedes Mine .............14 Markets ........................................................ 96 Operating Strategies .................................... 82 Australia/Oceania: NQ Minerals Acquires Beaconsfield .................................16 People .......................................................... 12 Africa: Resolute Extends Mako’s Life of Mine .................................................18 Processing Solutions .................................... 88 Europe: Outokumpu Initiates EIA for Kemi Expansion ....................................20 Suppliers Report........................................... 84 Exploration Roundup: Rio Tinto Begins Exploring Forum’s Janice Lake Project ....22 This Month in Coal ....................................... 24 www.e-mj.com AUGUST 2020 • E&MJ 1 EEMJ_pg01.inddMJ_pg01.indd 1 88/10/20/10/20 112:582:58 PPMM FROM THE EDITOR EPA Moves Forward With Gold King Cleanup www.e-mj.com Mining Media International, Inc. TheyT say gold loves misery and, so far, most would agree 11655 Central Parkway, Suite 306; Jacksonville, Florida 32224 USA tthat 2020 has been a miserable year. Backing up that Phone: +1.904.721.2925 / Fax: +1.904.721.2930 oold adage, gold prices this month surged above $2,000 pper ounce (oz). On a percentage basis, the price of silver Editorial aactually performed better than gold. The two usually rise Publisher & Editor-In-Chief—Steve Fiscor, sfi [email protected] Associate Editor—Jennifer Jensen, [email protected] aand fall in tandem. Silver had been lagging, but it quickly Technical Writer—Jesse Morton, [email protected] Steve Fiscor caught up, rising more than 60% to nearly $29/oz. Met- Publisher & Editor-in-Chief Contributing Editor—Russ Carter, [email protected] al prices across the board have fi rmed (See Markets, p. European Editor—Carly Leonida, [email protected] 96). Look for an industry-wide revitalization to begin with Latin American Editor—Oscar Martinez, [email protected] precious metals. South African Editor—Gavin du Venage, [email protected] As this edition was going to press, which would be the fi ve-year anniversary of Graphic Designer—Tad Seabrook, [email protected] the Gold King mine blowout, the U.S. Environmental Protection Agency (EPA) and Sales the state of Utah announced they had reached a settlement. On August 5, 2015, a Midwest/Eastern U.S. & Canada, Sales—Victor Matteucci, contractor working for the EPA pierced the seal of a mine portal in southwest Col- [email protected] orado and released mine water laden with heavy metals. The catastrophic environ- Western U.S., Canada & Australia, Sales—Frank Strazzulla, mental incident created an orange plume that fouled the waterways from Silverton, [email protected] Colorado, to Lake Powell in Utah and into Lake Mead in Nevada for weeks. Scandinavia, UK & European Sales—Colm Barry, [email protected] Pursuant to the agreement, Utah will dismiss its legal claims against the EPA Germany, Austria & Switzerland Sales—Gerd Strasmann, and the United States, as well as EPA’s contractors, and the EPA will strengthen [email protected] Utah’s involvement in the agency’s work to address contamination at the Bonita Japan Sales—Masao Ishiguro, [email protected] Peak Mining District (BPMD) Superfund Site, which includes the Gold King mine General Manager-Operations—Dan Fitts, dfi [email protected] and other abandoned mines. The EPA will also continue to partner with Utah on Marketing Manager—Misty Valverde, [email protected] other environmental priorities, including the assessment of abandoned mine sites in Utah that may be impacting its waters as well as other projects to improve Utah’s water quality. EPA Administrator Andrew Wheeler positioned the agreement as a win-win for the EPA and Utah. “It will bring environmental benefi ts to Utah, avoid protracted litigation, and hopefully serve as a lesson for the future to avoid repeating the mistakes of the past,” Wheeler said. Utah Attorney General Sean Reyes was more direct. “After years of intense Engineering & Mining Journal, Volume 221, Issue 8, (ISSN 0095-8948) is litigation and negotiations, we are very pleased that millions of dollars can now published monthly by Mining Media International, Inc., 11655 Central Parkway, Suite 306, Jacksonville, FL 32224 (mining-media.com). Periodicals Postage be spent toward mitigation, remediation and assuring water quality in Utah rather paid at Jacksonville, FL, and additional mailing offi ces. Canada Post Publi- than years of more litigation, trial and appeals,” Reyes said. “This is what cooper- cations Mail Agreement No. 41450540. Canada return address: PO Box 2600, Mississauga ON L4T 0A8, Email: [email protected]. Current ative federalism looks like — a true federal and state partnership. Protecting the and back issues and additional resources, including subscription request forms people, public health and environment of [Utah] have always been the top priori- and an editorial calendar, are available at www.e-mj.com. ty in this case.” SUBSCRIPTION RATES: Free and controlled circulation to qualifi ed subscrib- Reyes explained that they had two simple goals. First, get the federal govern- ers. Visit www.e-mj.com to subscribe. Non-qualifi ed persons may subscribe at the following rates: USA & Canada, 1 year, $90. Outside the USA & Can- ment to clean up massive amounts of waste still lurking in many historic mining ada, 1 year, $150. For subscriber services or to order single copies, contact districts. Second, get the EPA to act on the Utah Department of Environmental E&MJ, c/o Stamats Data Management, 615 Fifth Street SE, Cedar Rapids IA Quality’s application for millions of dollars in Clean Water Act funds for various 52401, 1-800-553-8878 ext. 5028 or email [email protected]. projects. The EPA now expects to conduct and oversee the completion of more ARCHIVES AND MICROFORM: This magazine is available for research and than $220 million in work on abandoned