Aggregates Manager

SPECIAL SECTION The USGS produces publications on construction aggregates and other mineral commodities, including the Minerals Yearbook, Mineral Industry Surveys, and Mineral Commodity Summaries. The Minerals Yearbook is an annual publication that contains statistical data on crushed stone and construction sand and gravel as separate chapters. The Minerals Yearbook series includes chapters on approximately 90 mineral commodities (volume I), 50 states and Puerto Rico and the administered islands (volume II), and 175 countries (volume III). Crushed stone and sand and gravel Mineral Industry Surveys are quarterly, web-based publications designed to provide timely statistical data on domestic production of crushed stone, construction sand and gravel, and aggregates at the national, state, and regional levels. The quarterly survey is a sample survey that generates production-forconsumption estimates by quarter, based on information reported voluntarily by a limited number of producing com- panies. The Mineral Commodity Summaries is published on an annual basis and is the earliest annual Government publication to furnish estimates regarding prior year construction aggregates industry data. Mineral Commodity Summaries 2013 provides preliminary data on 2012 production. A listing of the top 100 producers is published annually in the Minerals Yearbook for the crushed stone industry and for the construction sand and gravel industry. These directories rank the leading companies based on their production-for-consumption for the current and previous year. All publications are available on the USGS Mineral Resources Program website, http://minerals.usgs.gov/, by selecting the Quick Link for "Minerals Information." AM Jason Christopher Willett is a crushed stone commodity specialist with the U.S. Geological Survey. He can be reached at 703-6486473 or jwillett@usgs.gov. Is Your Solution Leader in Design & Manufacturing Fines Recovery Systems Close-up photo: Recycled clarified water To Water Reclamation! MAXIMIZE YOUR PRODUCTIVITY WITH OUR CUSTOM DESIGNED EQUIPMENT. • • • • • • www.azfab.com PLATE PRESS HIGH RATE THICKENER DEWATERING SCREEN FRACTIONATOR VERTICAL DURABILITY CELL SUPER CUTTER HYDROCYCLONE 866.616.9351 Text INFO to 205-289-3782 or visit www.aggman.com/info AGGREGATES MANAGER April 2013 27

• Cover
• OPERATIONS ILLUSTRATED: Best Practices for Stockpile Management: Start with a good sample.
• FEATURE ARTICLES: Fuel Use Trends and the highway Trust Fund: With looming insolvency, a vehicle mileage-based user fee is viable, but challenging option for creating revenue.
• FEATURE ARTICLE: The Nations Top 25 Construction Aggregates Producers: 2011 marked the first increase in production since 2006, with slight price increases as well.
• FEATURE ARTICLE: Maintaining Fine Material Screw Washers: Follow these operating and maintenance recommendations to keep your fine material screw washer operating efficiently.
• EDITORIAL: An explosive situation.
• STATE AND PROVIDENCE NEWS: A roundup of the latest news in North America.
• SAFETY WATCH: Use fall protection when working in elevated spaces.
• ROLLOUTS: Flanders Ardvarc 4.0 fully automated drill rig and other new equipment for the aggregate market.
• DATA MINING: The latest financial analysis of issues impacting in the industry.
• ROCK LAW: A litigation hold requires parties to preserve evidence relevant to a legal dispute.
• CLASSIFIED ADS: Aggregate industry classifieds.
• ADVERTISER INDEX: See whos who and where to find their products.
• CARVED IN STONE: Pearlite can be found in everything from lightweight aggregate to futuristic insulation.