{011F747B-6FB2-44E1-AD2A-54FBA993D091}2003080508301900FALSE20040205123349002004020512334900Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800enThe U.S. Geological Survey (USGS) began its NAWQA (National Water Quality Assessment) program in 1991, systematically collecting chemical, biological, and physical water quality data from 42 study units (basins) across the nation. The data warehouse currently contains and links the following data up through 9/30/2002: Chemical concentrations in water, bed sediment, and aquatic organism tissues for about 500 chemical constituents Site, basin, well and network characteristics with many descriptive variables Daily stream flow information for fixed sampling sites Ground water levels for sampled wells 6,100 surface water sites and 7,000 wells 46,000 nutrient samples and 31,000 pesticide samples as well as 16,000 VOC samples 3,200 samples of bedsediment and aquatic organism tissueTo aid in local GIS and planning effortsUSGSwater_quality.txthttp://infotrek.er.usgs.gov/servlet/page?_pageid=543&_dad=portal30&_schema=PORTAL30-124.540391-113.72919442.14168332.395244Water QualityChemicalMEAR279None NoneText FileUSGSMicrosoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800water_quality.txtenFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timeUSGS20040205http://www.esri.com/metadata/esriprof80.htmlESRI Metadata ProfileISO 19115 Geographic Information - MetadataDIS_ESRI1.0datasetDownloadable Data002Text File20040205