Triangle Area Water Supply Monitoring Project

Phase VI Sample Collection Schedule

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Sampling schedule for USGS sampling sites
  Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Stream sites
Nutrients, major ions, and suspended sediment X   X   X   X   X   X  
Metals and trace elements X           X          
Runoff samples: nutrients, major ions, metals and trace elements, and suspended sediment Two storm events per year at 8 sites per year
Lake sites
Near surface samples:
Alkalinity, major ions, iron, and manganese		 X   FJ*   FJ*   X   X   X  
Near surface samples:
Metals, trace elements		 X   FJ*   FJ*   X          
Photic-zone samples samples:
Nutrients, chlorophyll a and b, phytoplankton		 X   FJ*   FJ*   X   X   X  
Mid-column and near-bottom samples:
Nutrients, iron, and manganese		 X   FJ*   FJ*   X   X   X  
* - FJ indicates that only Falls and Jordan Lake sites are sampled.

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