Rock Products

JUL 2019

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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Page 20 of 79 ROCKproducts • July 2019 • 19 The quarterly sample survey generates produc- tion-for-consumption estimates by quarters, based on information reported voluntarily by a limited number of producing companies. In most quarters, a few companies may report amounts sold in the current quarter that differ greatly from the amounts reported in the previous year during the same quarter. This change in sales is almost never an indicator of the change in the demand in the state as a whole. The reason for a large change can be the opening or closing of an operation, weather or an external force that only the company or one of its operations experienced in that quarter. Previously reported data are occasionally revised, and the estimated quantities for the prior quarters are then recalcu- lated. The latest release of the quarterly Mineral Industry Surveys contains the most recent estimated totals and supersedes previously published reports. The estimated produc- tion-for-consumption of crushed stone in the first quarter of 2019 increased in six of the nine geographic divi- sions compared with that sold or used in the first quarter of 2018. Pro- duction-for-consumption increased in 28 of the 45 states for which esti- mates were made. The five leading states were, in descending order of production-for-con- sumption, Texas, Florida, North Carolina, Georgia and Pennsylvania. The estimated produc- tion-for-consumption of construction sand and gravel in the first quar- ter of 2019 increased from that of first quarter 2018 in five of the nine geographic divisions. P r o d u c t i o n - f o r - c o n - sumption increased in 22 of the 42 states for which estimates were made. The five leading states were, in descending order of production-for-con- s u m p t i o n , Te x a s , California, Arizona, Wash- ington and Florida. S Methodology

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