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Nutrients National Synthesis Project

Data on nutrients in the streams, rivers, and ground water of the United States

Nutrients Data Revision Log

MAIN DATA PAGE

• 02/26/1999 - Initial Web Page.
• 06/02/1999 - Addition of links to the Rivers and Streams Site Description Pages, which include precise information (latitude and longitude) about the geographic location as well as the land use type and percent cover characteristics of each site.

STREAM DATA FILES

• 02/26/1999 - Date compiled.
• 06/02/1999 - The site for Station 08358300 was changed to 08358400. Both of these stations are at the same site.
• 06/02/1999 - The site for Station 11262900 was changed to 11261100. Both of these stations are drainage canals which drain the same area.
• 06/02/1999 - Addition of the Rivers and Streams Site Description Pages, which include precise information (latitude and longitude) about the geographic location as well as the land use type and percent cover characteristics of each site.
• 08/17/1999 - Reformat of the Nutrients in Rivers and Streams downloadable file to remove format errors introduced in the June revision.

GROUND-WATER DATA FILES

• 02/26/1999 - Date compiled.
• 03/31/2000 - Addition of the Ground Water Site Description Pages, which include precise information (latitude and longitude) about the geographic location of each site.
• 04/14/2000 - Correction of the Ground Water Site Description Pages: The ground water site description file was corrected so that the horizontal datum of all latitude/longitude coordinates is the North American Datum of 1983. The March version did not account for horizontal datum and contained a mix of NAD83 and NAD27.