From introduction: This report presents the preliminary findings obtained from the baseline network through 1978. For North Carolina, it represents the first known attempt to determine the concentrations of major chemical and trace constituents and nutrients contributed to the State's streams by natural processes.

From abstract: Data were collected at three sites on the Black River near Dunn, North Carolina, to define the effects of channel excavation on water-quality characteristics and on ground-water levels in nearby areas. Background data were collected at a site upstream from the 5-mile-long excavated reach. Changes in hydrologic characteristics were determined from data collected before, during, and after the construction period 1976-81. Significant changes occurred in shallow ground-water levels, streamflow velocities, water temperatures, dissolved oxygen, and suspended sediment; little or no change occurred in pH, dissolved solids, nitrogen, phosphorus, and bacteria.

This report analyses tree rings of large Pinus taeda L. trees "growing near a drainage ditch in the Great Dismal Swamp" and concludes that these rings are "datable and hydrologically sensitive." It includes tables and graphs.

From abstract: Extensive agricultural land clearing and drainage operations underway in a 650 square mile part of the Albemarle-Pamlico region--a 1,634 square mile peninsula in North Carolina lying between Albemarle Sound on the North and the Pamlico River on the south--are changing the hydrology of the area. The artificial drainage system being constructed in the region, although it will probably result in only a slight modification of the natural annual evatranspiration, overland runoff, and ground-water discharge, will likely result in several important problems.

From abstract: This report presents "a water-quality study of the Neuse River, based on data collected during 1956-77 at the U.S. Geological Survey stations at Clayton and Kinston, employs statistical trend analysis techniques that provide a framework for river-quality assessment." It includes maps, graphs, and tables.

From introduction: This report presents the results of an investigation of the quality of water in the French Broad River at Marshall, N.C., that is based on data collected during the period 1958-77. Major objectives of the study were: (1) to define variations in water quality; (2) to determine the degree to which the quality of water in the river is affected by man's activities; and, (3) to identify past and present trends in the chemical quality of water in the river.