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Publications— Water Data Reports


Prepared in Cooperation with the Virginia Department of Environmental Quality and with other agencies

Water Resources Data
Virginia Water Year 2004
Volume 1. Surface-Water Discharge and Surface-Water Quality Records

U.S. Geological Survey Water Data Report VA-04-1—ONLINE ONLY


By Roger K. White, Donald C. Hayes, Joel R. Guyer, and Eugene D. Powell

This report is available in pdf.


Water-resources data for the 2004 water year for Virginia includes records of stage, discharge, and water quality of streams and stage, contents, and water quality of lakes and reservoirs. This volume contains records for water discharge at 176 gaging stations; stage only at 3 gaging stations; stage and contents at 11 lakes and reservoirs; and water quality at 18 gaging stations. Also included are data for 49 crest-stage partial-record stations. Locations of these sites are shown on figures 4 and 5. Miscellaneous hydrologic data were collected at 172 measuring sites and 12 water-quality sampling sites not involved in the systematic data-collection program. The data in this report represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in Virginia.

Table of Contents


Report documentation page

List of surface-water stations, in downstream order, for which records are published in this volume

List of discontinued surface-water-discharge or stage-only stations

List of discontinued surface-water-quality stations



Records collected by the State of Virginia

Summary of hydrologic conditions

Surface-water discharge

Explanation of the records

Station identification numbers

Downstream order system

Latitude-longitude system

Special networks and programs

Explanation of stage and water discharge records

Data collection and computation

Data presentation

Station manuscript

Data table of daily mean values

Statistics of monthly mean data

Summary statistics

Identifying estimated daily discharge

Accuracy of the records

Other records available

Explanation of water quality records

Collection and examination of data

Water analysis

Surface-water quality records

Classification of records

Accuracy of 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 data

Definition of terms

Station records, surface-water-discharge and surface-water-quality

Discharge at partial-record stations and miscellaneous sites

Crest-stage partial-record stations

Special study and miscellaneous sites

Analyses of samples collected at partial-record, special study, and miscellaneous sites


This report is available online in Portable Document Format (PDF).

The full report (21MB PDF).


If you do not have the Adobe Acrobat PDF Reader, it is available for free download from Adobe Systems Incorporated.


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