Surface-water and water-quality data from selected streams and treated waters in the Greensboro Area, North Carolina, 1986-87

Abstract

Water and bottom-sediment samples were collected from April 1986 to September 1987 at 19 sites in Guilford County and the City of Greensboro, North Carolina. Sampling locations included 13 stream sites, two lakes that supply City of Greensboro drinking water, two City of Greensboro finished drinking-water filtration plants, and two municipal wastewater plants where effluents were sampled prior to outfall into the receiving streams. Water sampling consisted of six routine samplings during various stages of steady flow at all sites, and rainfall-event sampling during two storms at six sites. Bottom-sediment samples were collected at three sites during two routine samplings.Samples were analyzed for trace-element, major ion, and nutrient concentrations, as well as general water-quality indicators, such as pH, dissolved oxygen, and specific conductivity. Concentrations of acid and base/neutral extractable, volatile organic compounds, and organochlorine and organophosphorus constituents were also determined. Chromatographs from organic analyses were submitted to computerized library searches, the results of which are included in this report. Results from all analyses are presented in tabular form in the appendices.

Water resources activities of the North Carolina District of the U.S. Geological Survey, 1988-90

“…Reports: Davenport, M.S., 1988, Surface-water and water-quality data from selected streams and treated waters in the Greensboro area, North Carolina, 1986-87 Problem: Since the early 1950's, the USGS has been the recognized source for low-flow frequency estimates for streams in North Carolina. Recent implementation of a new State policy to deny or severely restrict waste-discharge permits for streams with zero flows and the 7 consecutive-day 10-year minimum average flow level (minimum 7Q10 flow) makes it important to develop more accurate estimates for low-flow frequency characteristics, particularly for small streams where minimum 7Q10 flows are likely to be zero and where little or no streamflow data are available.…”

Water quality in Reedy Fork and Buffalo Creek basins in the Greensboro area, North Carolina, 1986-87

“…Samples were collected during high flows at six stream sites, and stage-discharge ratings were developed through measure- North Carolina, 1986-87. ments of discharge. Hydrologic and analytical data from the sampling phase of the project are available in a companion report (Davenport, 1988).…”

“…The data sites, their station names and numbers, drainage areas, and types of discharge records are shown in table 1, which also shows whether the sites are affected by impoundments or effluent outfalls. More detailed descriptions of each site, along with the data values, are given in a separate report (Davenport, 1988).…”

“…Procedures for these on-site measurements and for collecting, treating, and shipping samples were followed as outlined by Guy and Norman (1970); Stevens and others (1975); R.J. Pickering, U.S. Geological Survey, written communication (1976); Wershaw and others (1983); and Fishman and Friedman (1985). A detailed description of field procedures and data-collection techniques for this study are given in Davenport (1988).…”

“…No other pesticide compounds were found. Complete results of these analyses are given in Appendix E of the basic data report (Davenport, 1988).…”