Magnitudes, nature, and effects of point and nonpoint discharges in the Chattahoochee River basin, Atlanta to West Point Dam, Georgia

Stamer, J.K.; Cherry, R. N.; Faye, Robert E.; Kleckner, R.L.

doi:10.3133/ofr78577

Cited by 16 publications

(13 citation statements)

References 10 publications

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“…Shoals have a pronounced reaerating ability; the sooner the shoals are reached the less the wastes are able to exert their oxygen demand and, thus, the higher is the minimum on the DO sag. The net effect of these three mechanisms appears to be, both empirically and in model results (Stamer and others, 1978), that higher river discharges lead to higher minimum DO concentrations in the sag below Atlanta. Stamer and others (1978) reported that on June 1-2, 1977, when the river flow at the Atlanta gage was 1,150 ft3/s, the minimum DO in the river was 4.0 mg/L and the DO was less than 5.0 mg/L along approximately a 20 mile reach.…”

Section: Relationship Of Flow and Dissolved Oxygenmentioning

confidence: 99%

“…The net effect of these three mechanisms appears to be, both empirically and in model results (Stamer and others, 1978), that higher river discharges lead to higher minimum DO concentrations in the sag below Atlanta. Stamer and others (1978) reported that on June 1-2, 1977, when the river flow at the Atlanta gage was 1,150 ft3/s, the minimum DO in the river was 4.0 mg/L and the DO was less than 5.0 mg/L along approximately a 20 mile reach. At that time, the flow of waste water into the river was 185.3 ft3/s.…”

Section: Relationship Of Flow and Dissolved Oxygenmentioning

confidence: 99%

“…The model developed by Stamer and others (1978) also predicted minimum DO concentrations given other degrees of waste treatment. For example, if the BODu concentration of the waste effluent were 15 mg/L rather than 45 mg/L and the ammonia-nitrogen concentration were 5 mg/L rather than 15 mg/L, the minimum DO con centration would be 5.1 mg/L rather than 2.6 mg/L, given a flow at Atlanta of 1,150 ft3/s.…”

Section: Managing the Dissolved-oxygen Concentrationmentioning

confidence: 99%

“…The average concentration of the ultimate biochemical oxygen demand (BODu) of the waste water was 44 mg/L, and the average ammonianitrogen concentration was 11 mg/L. A model developed by Stamer and others (1978) predicts that under condi tions anticipated for the year 2000 and with secondary waste treatment (370 ft3/s of waste water, BODu concen trations of 45 mg/L, and an ammonia-nitrogen concen tration of 15 mg/L) the minimum DO concentration given the same river flow would be 1.1 mg/L and the DO concentration would be less than 5.0 mg/L along a 50 mile reach. This model also predicts the change in the minimum DO given a change in the flow at Atlanta.…”

Section: Relationship Of Flow and Dissolved Oxygenmentioning

confidence: 99%

See 3 more Smart Citations

An economic analysis of selected strategies for dissolved-oxygen management; Chattahoochee River, Georgia

Schefter¹,

Hirsch²

1980

Professional Paper

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Section: Relationship Of Flow and Dissolved Oxygenmentioning

confidence: 99%

Section: Relationship Of Flow and Dissolved Oxygenmentioning

confidence: 99%

Section: Managing the Dissolved-oxygen Concentrationmentioning

confidence: 99%

Section: Relationship Of Flow and Dissolved Oxygenmentioning

confidence: 99%

See 2 more Smart Citations

An economic analysis of selected strategies for dissolved-oxygen management; Chattahoochee River, Georgia

Schefter¹,

Hirsch²

1980

Professional Paper

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“…Fishing is the use designation not met in greater than 80 percent of impaired stream miles. In the reach of the Chattahoochee River from Atlanta to Whitesburg, Ga., non-point source loads for most constituents are greater than point-source loads, and constituent yields generally increase with increasing urbanization (Stamer, 1979).…”

Section: Influences Of Environmental Settings On Aquatic Ecosystemsmentioning

confidence: 99%

Influences of environmental settings on aquatic ecosystems in the Apalachicola-Chattahoochee-Flint River basin

Couch¹,

Hopkins²,

Hardy³

1996

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The mission of the U.S. Geological Survey (USGS) is to assess the quantity and quality of the earth resources of the Nation and to provide information that will assist resource managers and policymakers at Federal, State, and local levels in making sound decisions. Assessment of water-quality conditions and trends is an important part of this overall mission.One of the greatest challenges faced by water-resources scientists is acquiring reliable information that will guide the use and protection of the Nation's water resources. That challenge is being addressed by Federal, State, interstate, and local water-resource agencies and by many academic institutions. These organizations are collecting water-quality data for a host of purposes that include: compliance with permits and water-supply standards; development of remediation plans for a specific contamination problem; operational decisions on industrial, wastewater, or water-supply facilities; and research on factors that affect water quality. An additional need for water-quality information is to provide a basis on which regional and national-level policy decisions can be based. Wise decisions must be based on sound information. As a society, we need to know whether certain types of waterquality problems are isolated or ubiquitous, whether there are significant differences in conditions among regions, whether the conditions are changing over time, and why these conditions change from place to place and over time. The information can be used to help determine the efficacy of existing water-quality policies and to help analysts determine the need for, and likely consequences, of new policies.To address these needs, the Congress appropriated funds in 1986 for the USGS to begin a pilot program in seven project areas to develop and refine the National Water-Quality Assessment (NAWQA) Program. In 1991, the USGS began full implementation of the program. The NAWQA Program builds upon an existing base of waterquality studies of the USGS, as well as those of other Federal, State, and local agencies. The objectives of the NAWQA Program are to: describe current water-quality conditions for a large part of the Nation's freshwater streams, rivers, and aquifers;describe how water quality is changing over time; and improve understanding of primary natural and human factors that affect water-quality conditions. This information will help support the development and evaluation of management, regulatory, and monitoring decisions by other Federal, State, and local agencies to protect, use, and enhance water resources.The goals of the NAWQA Program are being achieved through ongoing and proposed investigations of 60 of the Nation's most important river basins and aquifer systems, which are referred to as study units. These study units are distributed throughout the Nation and cover a diversity of hydrogeologic settings. More than two-thirds of the Nation's freshwater use occurs within the 60 study units and more than two-thirds of the people served by public water-supply systems l...

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Cultural eutrophication of West Point Lake ? a 10-year study

et al. 1990

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Urban development, primarily in the Atlanta, Georgia, metropolitan area, caused a significant rise in the volume of treated wastewater discharged into the Chattahoochee River from 1976 to 1985. West Point Lake, 109 km downstream from Atlanta, responded to the increased nutrient loading with an increase in mean annual phytoplankton primary productivity of from 550 mg C m -2 day -' in 1976 to 1580 mg C m -2 day -' in 1985, a move from mesotrophic to eutrophic status. Monthly water quality measurements in the lake headwaters failed to detect the trend of increasing enrichment. Phytoplankton chlorophyll a concentrations did not indicate a trend of increasing algal biomass. Increased productivity was caused by improved photosynthetic efficiency that resulted from a shift in the size distribution of algae comprising the phytoplankton community. Larger centric diatoms with relatively slow turnover rates that were dominant during the early years (1976)(1977)(1978)(1979)(1980) of impoundment were replaced by smaller green and blue-green algal taxa with faster turnover rates during later years (1981)(1982)(1983)(1984)(1985).

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Magnitudes, nature, and effects of point and nonpoint discharges in the Chattahoochee River basin, Atlanta to West Point Dam, Georgia

Cited by 16 publications

References 10 publications

An economic analysis of selected strategies for dissolved-oxygen management; Chattahoochee River, Georgia

An economic analysis of selected strategies for dissolved-oxygen management; Chattahoochee River, Georgia

Influences of environmental settings on aquatic ecosystems in the Apalachicola-Chattahoochee-Flint River basin

Cultural eutrophication of West Point Lake ? a 10-year study

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