STUDY -- Selected Data for 1,240 Wells and Springs, Collected During This Study

Figure 4. Map of the distribution of selected study wells and springs

Table A1. Data for selected study wells and springs

GIS files listing the locations of study wells and springs

NONSTUDY -- Selected Data for 4,753 Wells and Springs, Collected during Previous Studies

Figure A1. Map of the distribution of selected nonstudy wells and springs

Table A2. Data for selected nonstudy wells and springs

GIS files listing the locations of nonstudy wells and springs

WATERLEV -- Water-Level-Measurement Data and Hydrographs for Selected Wells

Figure 5. Map of the distribution of selected observation wells

Figures B5-7. Maps of water-level measurement data and hydrographs for 9 long-term, 117 State, and 112 bimonthly observation wells

Table B1. Summary data of water-level measurements for selected wells

Table B2. Water-level measurement data for the selected wells

RECORDER -- Water-Level-Measurement Data and Hydrographs for 33 Wells Equipped with Digital Recorders

Figure 6. Map of the distribution of selected wells equipped with digital recorders

Figure B8. Map of water-level-measurement data and hydrographs for selected wells with digital recorders

Table B3. Summary data of water-level measurements for selected wells equipped with digital recorders

Table B4. Daily noon water-level measurements for selected wells with digital recorders

GEOPHYS -- Summary of Borehole Geophysical Data for 16 Wells

Figure 7. Map of the distribution of selected wells with borehole geophysical data

Figure C2. Map and text files of borehole geophysical data for selected wells

Table C1. Summary of borehole geophysical data for selected wells

WATERCHM -- Water-Chemistry Data for Selected Wells and Springs

Figure 8. Map of the distribution of water-chemistry sample collection sites

Table D1. Water-chemistry data for selected wells and springs

Table D2. Historical water-chemistry data for wells and springs sampled

Description of sources for historical data for wells and springs sampled for water-chemistry

Map of arsenic concentrations

GEOL -- GIS data layers from selected reports for the Willamette Lowland, Oregon and Washington

Quaternary geologic units in the Willamette Basin, Oregon:

O'Connor, J.E., Sarna-Wojcicki, A.M., Wozniak, K.C., Polette, D.J., and Fleck, R.J., in press, Origin, extent, and thickness of Quaternary geologic units in the Willamette Valley, Oregon: U.S. Geological Survey Professional Paper 1620

Generalized Geologic units of the Willamette Lowland, Oregon and Washington:

Gannett, M.W. and Caldwell, R.R., 1998, Geologic framework of the Willamette Lowland aquifer system, Oregon and Washington: U.S. Geological Survey Professional Paper 1424-A, 32 p.

Geologic units of the Willamette Basin, Oregon:

Walker, G.W., and MacLeod, N.S., 1991, Geologic map of Oregon: U.S. Geological Survey, scale 1:500,000, 2 sheets

Willamette Basin Ground-Water project page
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