Quality of water and time of travel in Goodwater and Okatoma creeks near Magee, Mississippi

Open-File Report 81-1012



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An intensive quality-of-water study was conducted during a period of generally low streamflow in Goodwater and Okatoma Creeks near Magee, Miss. During the August 12-14, 1980, study, the mean specific conductance of the water at all sites was less than 59 micromhos per centimeter; the dissolved-oxygen concentrations were greater than 5.0 milligrams per liter: pH values ranged from 6.0 to 6.8, and the mean water temperature ranged from 23.0 to 27.0 Celsius. The biochemical oxygen demand and nutrient concentrations at the downstream sampling sites were higher in Goodwater Creek than in Okatoma Creek. The maximum 5-day biochemical oxygen demand was 2.7 milligrams per liter in Goodwater Creek and 1.5 milligrams per liter in Okatoma Creek. The mean concentration of total nitrogen was 1.0 and 0.71 milligrams per liter and the mean total phosphorus concentration was 0.26 and 0.10 milligrams per liter at the downstream sites on Goodwater and Okatoma Creeks, respectively. Fecal coliform densities generally were high at all sites, exceeding 4,000 colonies per 100 milliliters in both Goodwater and Okatoma Creeks. Objectionable concentrations of total cadmium, mercury, iron, and phenol were present in a sample of water. Dieldrin, chlordane, DDD, DDE, and DDT were present in a sample of bottom material collected at the downstream site of Okatoma Creek. The peak concentration of dye injected into Goodwater Creek traveled through a 1.7-mile reach at a rate of 0.3 mile per hour. (USGS)

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USGS Numbered Series
Quality of water and time of travel in Goodwater and Okatoma creeks near Magee, Mississippi
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Open-File Report
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U.S. Geological Survey,
v, 39 p., ill., map ;28 cm.