National Water-Quality Assessment (NAWQA) Program

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Featured Studies
Special studies on source-water and drinking-water quality
Surface-water intakes
Trends
General Information

USGS Circular 1350: Nutrients in the Nation's Streams and Groundwater


Supplemental Technical Information (available on-line only)

BACK TO CIRCULAR Materials Page

Figures and Tables:

Figures -- Choose a chapter and click on "Go"


Tables

Table 3-1

Table 4-1

Table 5-1

Table 6-1

Table 6-2


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