USGS National Water Quality Assessment (NAWQA) Program: “About NAWQA Study Units.”

http://water.usgs.gov/nawqa/studyu.html

Access to 51 studies and summary reports from 1991-2001 on U.S. river basins and aquifers. Choose selected study unit from the drop-down menu.

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Date Of Record Release	2011-01-21 17:09:39
Description	Access to 51 studies and summary reports from 1991-2001 on U.S. river basins and aquifers. Choose selected study unit from the drop-down menu.
Classification	Water and Wastewater -- Quality Assurance and Quality Control Site Management -- Sampling and Monitoring Water and Wastewater -- Groundwater Education and Training Resources -- Texts, Manuals, Other Media -- Earth and Water Education and Training Resources -- College level Education and Training Resources -- High school level
Resource Type	Case Study Curriculum Module/Unit Database
Format	Interactive Library/Collection Data
Subject	Groundwater Water quality Rivers Aquifers Stream ecology Water quality--Sampling Education--Curricula
Source	U.S. Geological Service
Keyword	Assessment, Water chemistry, Hydrology, Land use, Stream habitat, Aquatic life, Water quality, River basins, Aquifers, Study units, Summary reports, Ecological resources, Contaminants, Sampling, Monitoring, Surface water, Groundwater, Conditions
Selector	Selection Committee
Date Of Record Creation	2011-01-21 16:52:36
Education Level	High School (9-12) College Technician/Professional/Faculty College (13 - 14) College (15 - 16) College - Graduate Level
Date Last Modified	2011-01-21 17:10:21
Language	English

Date Record Checked: 2011-01-21 00:00:00 (W3C-DTF)