Water Resources Data Iowa
Water Year 2004—Volume 1:
Surface Water and Precipitation

By Greg M. Nalley, Joseph G. Gorman, Robert D. Goodrich, Von E. Miller, and Kevin S Housel


Prepared in cooperation with the Iowa Department of Natural Resources-Iowa Geological Survey, Iowa Department of Transportation, and Federal Agencies

U.S. Geological Survey Water-Data Report IA-04-1

This report is available as a pdf.


This volume of the annual hydrologic data report of Iowa is one of a series of annual reports that document hydrologic data gathered from the U.S. Geological Survey.s surface- and ground-water data-collection networks in each State, Puerto Rico, and the Trust Territories. These records of streamflow, ground-water levels, and quality of water provide the hydrologic information needed by local, State, and Federal agencies, and the private sector for developing and managing our Nation.s land and water resources.

This report is the culmination of a concerted effort by dedicated personnel of the U.S. Geological Survey who collected, compiled, analyzed, verified, and organized the data, and who typed, edited, and assembled the report. The authors had primary responsibility for assuring that the information contained herein is accurate, complete, and adheres to Geological Survey policy and established guidelines.

Table of Contents


Surface-water stations, in downstream order, for which records
are published in this volume

Discontinued surface-water discharge or stage-only stations

Discontinued surface-water quality stations



Summary of hydrologic conditions


Special networks and programs

Explanation of Stage- and Water Discharge Records

Discontinued surface-water

Data Presentation

Identifying Estimated Daily Discharge

Accuracy of Field Data and Computed Results

Other Data Records Available

Explanation of Precipitation Records

Data Collection and Computation

Data Presentation

Explanation of Water-Quality Records

Collection and Examination of Data

Water Analysis

Surface-Water-Quality Records

Classification of Records

Accuracy of the Records

Arrangement of Records

On-Site Measurements and Sample Collection

Water Temperature


Laboratory Measurements

Data Presentation

Remark Codes

Water-Quality Control Data

Blank Samples

Reference Samples

Replicate Samples

Spike Samples

Access to USGS Water Data

Definition of Terms

Techniques of Water-Resources Investigations of the U.S. Geological Survey.

Surface water records

Crest-stage partial-record stations



You can DOWNLOAD THIS REPORT in Portable Document Format (PDF)

Full report 26.1MB

For faster downloading of selected pages, the report has been split into the following files. All of the files are linked from the table of contents (p. v) and the station list (p. vii), both of which are at the link "Pages iii-xv."

Front of report (380KB)

Pages iii-xv (861KB)—Table of Contents (p. v) and Station List (p. vii+)

Pages 1-8 (845KB)

Pages 9-37 (720KB)

Pages 38-50 (2MB)

Pages 51-63 (1.7MB)

Pages 64-77 (2MB)

Pages 78-91 (2MB)

Pages 92-109 (2.4MB)

Pages 110-125 (2.1MB)

Pages 126-142 (2.3MB)

Pages 143-159 (2.2MB)

Pages 160-175 (2.3MB)

Pages 176-202 (3.6MB)

Pages 203-219 (2.4MB)

Pages 220-240 (2.8MB)

Pages 241-261 (2.8MB)

Pages 262-274 (2MB)

Pages 275-287 (1.7MB)

Pages 288-300 (1.8MB)

Pages 301-313 (1.8MB)

Pages 314-334 (2.9MB)

Pages 335-354 (2.7MB)

Pages 355-371 (2.2MB)

Pages 372-383 (1.5MB)

Pages 384-388 (803KB)

Pages 389-406 (2.6MB)

Pages 407-427 (2.6MB)

Pages 428-447 (2.7MB)

Pages 448-467 (2.6MB)

Pages 468-486 (2.5MB)

Pages 487-506 (945KB)

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