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Median Station Nutrient Results 2010 to 2020

Virginia Department of Environmental Quality

Updated Nov 4, 2026

About this dataset

<p>This report analyzed all DEQ stations with Total Phosphorus (TP) and Total Nitrogen (TN) samples taken from 2010 to 2020. Median values and number of samples the statistic was based on (n) are presented in the table below.</p><p><br /><br />Median results are categorized accordingly:</p><ul><li>Median TN &lt; 1 mg/L is considered Low TN</li><li>Median TN &gt;= 1 mg/L &amp; Median TN &lt; 2 mg/L is considered Medium TN</li><li>Median TN &gt;= 2 mg/L is considered High TN</li><li>Median TP &lt; 0.05 mg/L is considered Low TP</li><li>Median TP &gt;= 0.05 mg/L &amp; Median TP &lt; 0.1 mg/L is considered Medium TP</li><li>Median TP &gt;= 0.1 mg/L is considered High TP<br />&nbsp;</li></ul>

Data and resources (6)

Prototype by Datopian · not an official government website · data from data.virginia.gov