| 1. |
Map showing Study Units of the National Water-Quality
Assessment. (46K GIF) |
| 2. |
Diagram showing phased implementation of Study-Unit
Investigations. (41K GIF) |
| 3. |
Diagram showing components of Study-Unit
Investigations and their
interrelations. (16K GIF) |
| 4. |
Diagram showing components of the Occurrence and
Distribution Assessments. (52K GIF) |
| 5. |
Diagram showing conceptual stratification of
environmental settings for the
White River Basin Study Unit, Indiana. (43K GIF) |
| 6. |
Map showing environmental settings
of the White River Basin Study Unit, Indiana. (85K GIF) |
| 7. |
Map showing example of distribution of Basic and Intensive
Fixed Sites for the White River Basin Study Unit, Indiana. (80K
GIF) |
| 8. |
Map showing example of study designs for a Study-Unit Survey
and Land-Use Study, San Joaquin/Tulare Basins Study Unit. (103K
GIF) |
| 9. |
Map showing typical idealized transect design for a
Flowpath Study associated with a gaining stream. (28K GIF) |
| 1. |
General goals of the Occurrence and Distribution
Assessment. (64K GIF) |
| 2. |
Relations among measurable water-quality characteristics and
selected water-quality issues. (45K GIF) |
| 3. |
Water-quality characteristics measured in National
Water-Quality Assessment surface-water components. (40K GIF) |
| 4. |
Sampling activities for characterizing streamwater-quality
conditions for the Occurrence and Distribution
Assessment. (63K GIF) |
| 5. |
Summary of fixed-site design for the White River Basin Study
Unit, Indiana. (37K GIF) |
| 6. |
Analytical strategy for Basic Fixed Sites. (24K GIF) |
| 7. |
Analytical strategy for Intensive Fixed Sites in addition to
the Basic Fixed-Site analyses. (45K GIF) |
| 8. |
National Target Taxa List for tissue bioassessment in the
National Water-Quality Assessment. (39K GIF) |
| 9. |
Analytical strategy for bed-sediment and tissue Occurrence
Survey. (87K GIF) |
| 10. |
Components and attributes of the National Water-Quality
Assessment ground-water sampling design. (53K GIF) |
