The U.S. Geological Survey (USGS) National Water Quality Assessment Program (NAWQA) monitors water quality conditions in study units across the nation and stores all collected chemical and physical water quality data in the NAWQA Data Warehouse. The NAWQA Data Export provides an easy way to access data stored in the NAWQA Data Warehouse through form-based workbook queries as well as through standalone web services. (A web service is a computer-to-computer protocol that allows for the direct sharing of information. Applications such as internet portals can use the web services to access data from the NAWQA Data Warehouse without needing an authorized database connection.)
The NAWQA Data Export provides six form-based workbooks (this page) for accessing animal tissue, daily stream discharge, ground water, surface water, and site data from the NAWQA Data Warehouse. Equivalent data retrievals can be performed using web services; each of these web services has different input parameters and pre-defined output formats (or schema). For more information and examples on accessing the various web services, see Technical Documentation and Examples.
Animal Tissue queries provide count or detailed animal tissue data for NAWQA sites.
Biological Community queries provide count, taxonomic list and sample abundance information for NAWQA biology reaches.
Daily Stream Discharge
Daily Stream Discharge queries provide summarized daily discharges for NAWQA sites with time-series data available.
Groundwater queries provide water quality results from NAWQA groundwater sites in count and detailed formats.
Mixed (SW & GW)
Mixed (SW & GW) queries provide water quality results for both surface water and groundwater NAWQA sites.
Sites queries provide information about NAWQA surface water and groundwater sites.
Surface Water/Bed Sediment
Surface Water/Bed Sediment queries provide water quality results from NAWQA surface water sites in count and detailed formats.
The example of format and style for database source from USGS Publishing Technical Memorandum No. 2009.01:
U.S. Geological Survey, 2001, National Water Information System (NWISWeb) [Animal Tissue]: U.S. Geological Survey database, accessed June 10, 2011, at http://water.usgs.gov/nawqa/data