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Extra resources for A review of the USGS National Water Quality Assessment Pilot Program

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A flexible long-term assessment would make that responsiveness possible. A national water quality assessment necessarily warrants a large-scale undertaking. Because of the complexity and spatial diversity of water quality issues, a national-level aggregation and integration would be invaluable in maximizing information gained from local experience. Such integration would enhance the ability to generalize from local experience and to adapt knowledge learned from one location to another. Because of complexity and diversity, multiple lines of evidence are often required to develop necessary understanding.

Relatively less is known about the behavior of large systems, such as entire river basins or aquifer systems. For this reason, a national assessment would be a particularly timely undertaking for scientific reasons alone. Because of the many advantages of a large-scale, long-term water quality assessment, there is tremendous value in developing consistent, compatible, reliable, and accessible water quality data bases. Unfortunately, there is often relatively little consistency between data sets gathered for local or regional purposes.

Page breaks are true to the original; line lengths, word breaks, heading styles, and other typesetting-specific formatting, however, cannot be retained, and some typographic errors may have been accidentally inserted. Please use the print version of this publication as the authoritative version for attribution. NAWQA DESIGN EVALUATION 32 traditionally strong in mathematical modeling of estuaries and lakes, has relatively little experience or capability in biological and chemical modeling. The committee, however, believes strongly that the USGS must include in NAWQA consideration of those lakes that significantly affect downstream or downgradient water quality.

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A review of the USGS National Water Quality Assessment Pilot Program by Unknow

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