The top documents tagged [samples of bed sediment]

52 NAWQA Study Areas. Occurrence in Water 010050 Streams Shallow Ground Water Streams Major Aquifers Percentage of Samples with Detections Land use Agricultural.

52 NAWQA Study Areas. Occurrence in Water 010050 Streams Shallow Ground Water Streams Major Aquifers Percentage of Samples with Detections Land use Agricultural.

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52 NAWQA Study Areas

52 NAWQA Study Areas

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USGS NAWQA Data Warehouse

USGS NAWQA Data Warehouse

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