The Clean Air Act Amendments of 1977 require all states to submit state implementation plans (SIPs) for demonstrating the attainment of National Ambient Air Quality Standards (NAAQS) by December 31, 1982. Linn County, Iowa (Cedar Rapids area) is one of the state's four primary non-attainment areas for total suspended particulate (TSP) matter. The SIP demonstrated attainment through further controls on traditional as well as nontraditional sources. This report presents the results of a study that was performed to assist the Iowa Department of Environmental Quality in the definition of the non-traditional sources of fugitive dust in Linn County. The study was separated into three tasks: update the area source inventory, analyze the existing monitoring data to determine source impacts, and provide a control strategy for non-traditional sources. The results of the study indicate that (1) all future large scale construction projects must incorporate fugitive dust controls, (2) surfacing of unpaced roads throughout the region should be continued, and (3) the impact of industrial fugitive dust sources should be reduced.

Final report. "TRC Environmental Consultants, Inc." Distributed to depository libraries in microfiche. "August 1983." Includes bibliographical references. "EPA 907/9-83-002."