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Pie charts showing the percentage of NTN stations with improving, degrading, and no trend in total nitrogen, total phosphorus, and suspended-sediment load from water years 2014 through 2023

April 2025 (approx.)

Detailed Description

Pie charts showing the percentage of NTN stations with improving, degrading, and no trend in total nitrogen, total phosphorus, and suspended-sediment load from water years 2014 through 2023.

Sources/Usage

Public Domain.

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