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Relation of stream quality to streamflow, and estimated loads of selected water-quality constituents in the James and Rappahannock rivers near the fall line of Virginia, July 1988 through June 1990

Water-Resources Investigations Report 94-4042
By: , , and 
https://doi.org/10.3133/wri944042

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Abstract

This report presents the results of a study by the U.S. Geological Survey, in cooperation with the Virginia Department of Environmental Quality-- Division of Intergovernmental Coordination to monitor and estimate loads of selected nutrients and suspended solids discharged to Chesapeake Bay from two major tributaries in Virginia. From July 1988 through June 1990, monitoring consisted of collecting depth-integrated, cross-sectional samples from the James and Rappahannock Rivers during storm- flow conditions and at scheduled intervals. Water- quality constituents that were monitored included total suspended solids (residue, total at 105 degrees Celsius), dissolved nitrite plus nitrate, dissolved ammonia, total Kjeldahl nitrogen (ammonia plus organic), total nitrogen, total phosphorus, dissolved orthopohosphorus, total organic carbon, and dissolved silica. Daily mean load estimates of each constituent were computed by month, using a seven-parameter log-linear-regression model that uses variables of time, discharge, and seasonality. Water-quality data and constituent- load estimates are included in the report in tabular and graphic form. The data and load estimates provided in this report will be used to calibrate the computer modeling efforts of the Chesapeake Bay region, evaluate the water quality of the Bay and the major effects on the water quality, and assess the results of best-management practices in Virginia.

Suggested Citation

Belval, D., Campbell, J., Woodside, M.D., 1994, Relation of stream quality to streamflow, and estimated loads of selected water-quality constituents in the James and Rappahannock rivers near the fall line of Virginia, July 1988 through June 1990: U.S. Geological Survey Water-Resources Investigations Report 94-4042, vi, 85 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri944042.

Publication type Report
Publication Subtype USGS Numbered Series
Title Relation of stream quality to streamflow, and estimated loads of selected water-quality constituents in the James and Rappahannock rivers near the fall line of Virginia, July 1988 through June 1990
Series title Water-Resources Investigations Report
Series number 94-4042
DOI 10.3133/wri944042
Year Published 1994
Language ENGLISH
Publisher U.S. Geological Survey ; USGS Earth Science Information Center, Open-File Reports Section [distributor],
Description vi, 85 p. :ill., maps ;28 cm.
Additional publication details