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Books by Washington County (Or.). Unified Sewerage Agency:

Books in the extended shelves:

• Washington County (Or.). Unified Sewerage Agency: Dissolved oxygen in the Tualatin River, Oregon, during winter flow conditions, 1991 and 1992 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1997), also by Valerie J. Kelly and Geological Survey (U.S.) (page images at HathiTrust)
• Washington County (Or.). Unified Sewerage Agency: Effects of hypothetical management scenarios on simulated water temperatures in the Tualatin River, Oregon (U.S. Department of the Interior, U.S. Geological Survey ;, 2000), also by John C. Risley and Geological Survey (U.S.) (page images at HathiTrust)
• Washington County (Or.). Unified Sewerage Agency: Modeling discharge, temperature, and water quality in the Tualatin River, Oregon (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1999), also by Stewart Rounds, Dennis D. Lynch, Tamara M. Wood, and Geological Survey (U.S.) (page images at HathiTrust)
• Washington County (Or.). Unified Sewerage Agency: Modeling water quality in the Tualatin River, Oregon, 1991-1997 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2001), also by Stewart Rounds, Tamara M. Wood, and Geological Survey (U.S.) (page images at HathiTrust)
• Washington County (Or.). Unified Sewerage Agency: Phosphorus and E. coli in the Fanno and Bronson Creek subbasins of the Tualatin River basin, Oregon, during summer low-flow conditions, 1996 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2000), also by Kathleen A. McCarthy and Geological Survey (U.S.) (page images at HathiTrust)
• Washington County (Or.). Unified Sewerage Agency: Relations of Tualatin River water temperatures to natural and human-caused factors (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1997), also by John C. Risley and Geological Survey (U.S.) (page images at HathiTrust)
• Washington County (Or.). Unified Sewerage Agency: Sediment oxygen demand in the Tualatin River Basin, Oregon, 1992-96 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1997), also by Stewart Rounds and Micelis C. Doyle (page images at HathiTrust)
• Washington County (Or.). Unified Sewerage Agency: Selected elements and organic chemicals in bed sediment and fish tissue of the Tualatin River Basin, Oregon, 1992-96 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1999), also by Bernadine Bonn (page images at HathiTrust)
• Washington County (Or.). Unified Sewerage Agency: Sources and transport of phosphorus and nitrogen during low-flow conditions in the Tualatin River, Oregon, 1991-93 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1999), also by Valerie J. Kelly, Stewart Rounds, Dennis D. Lynch, and Geological Survey (U.S.) (page images at HathiTrust)

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