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Books by Or.) Clean Water Services (Washington County:

Books in the extended shelves:

• Clean Water Services (Washington County, Or.): Chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River Basin, Oregon (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2003), also by Micelis C. Doyle, Stewart Rounds, and Geological Survey (U.S.) (page images at HathiTrust)
• Clean Water Services (Washington County, Or.): Modeling hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, 2000-03 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2005), also by Annett B. Sullivan, Stewart Rounds, and Geological Survey (U.S.) (page images at HathiTrust)
• Clean Water Services (Washington County, Or.): Modeling water quality effects of structural and operational changes to Scoggins Dam and Henry Hagg Lake, Oregon (U.S. Geological Survey, 2006), also by Annett B. Sullivan, Stewart Rounds, and Geological Survey (U.S.) (page images at HathiTrust)
• Clean Water Services (Washington County, Or.): Phosphorus and E. coli and their relation to selected constituents during storm runoff conditions in Fanno Creek, Oregon, 1998-99 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2003), also by Chauncey W. Anderson, Stewart Rounds, and Geological Survey (U.S.) (page images at HathiTrust)

Find more by Or.) Clean Water Services (Washington County at your library, or elsewhere.