This database contains water monitoring data collected by NETN in the CVDT format used by data visualization and other systems. This version of the data is not intended to be an archive.

This database contains water monitoring data collected by NCRN in the CVDT format used by data visualization and other systems. This version of the data is not intended to be an archive.

This database contains water monitoring data collected by NCRN in the CVDT format used by data visualization and other systems. This version of the data is not intended to be an archive.

Scanned images of hand written Water Quality monitoring data forms. Organized by year and month. See most recent protocol for more information on data collection methods.

Scanned images of hand written 'Rapid Bioassessment Protocol for Use in Streams and Wadeable Rivers' data forms. Organized by year, within year alphabetized by Park and Site. See most recent protocol for more information on data collection methods.

GIS shapefiles of cumulative watersheds models based on NETN's long-term water quality monitoring stations. Holdings include step-by-step instructions on how they were produced. Cumulative watersheds are one of several physical characteristics compiled and entered into the NETN water database (NETN_H2O) and represent the geographic extent from which surface water may have traveled to reach the monitoring site. Periodicity, flood attenuation, chemical buffering capacity, nutrient load, contaminants, invasive species, and water volume are just a few of the metrics that can be better understood when viewed from a cumulative watershed context. In addition to the watershed files, a Standard Operating Proceedure (SOP) documenting the geoprocessing steps required to calculate the area or region from which all surface water drains to NETN’s water quality monitoring sites (i.e. cumulative watershed) is also included. The process steps documented in this SOP were adapted from a University of Virginia Scholar’s Lab lecture assignment of unknown authorship titled “GIS Watershed Delineation Exercise”, circa 2012.

Scanned images of hand written Invasive Aquatic Plant Screening Survey forms and maps. Organized by year. See most recent protocol for more information on data collection methods.