scholarly journals The effects of channel excavation on water-quality characteristics of the Black River and on ground-water levels near Dunn, North Carolina

1982 ◽  
Keyword(s):  
Water Quality ◽  
North Carolina ◽  
Ground Water ◽  
Quality Characteristics ◽  
Water Levels

scholarly journals Study Relating to the Spatial Distribution of Ground Water Quality for Different Elements using Legacy Data of RWS&S, Andhra Pradesh, India

2014 ◽  
Vol XL-8 ◽  
pp. 383-390
Author(s):  
P. Prakash ◽  
A. Kumar Das ◽  
C. V. S. Sandilya
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Spatial Distribution ◽  
Ground Water ◽  
Andhra Pradesh ◽  
Chemical Elements ◽  
Groundwater Resources ◽  
Water Levels ◽  
Contamination Level ◽  
Ground Water Quality

The state of Andhra Pradesh, India falls in water stress<sup>4</sup> area. The primary objective of this study is to examine the spatial distribution of different chemical elements with respect to its contamination level. About 70 % of drinking water needs in rural areas and 40 % drinking water needs in urban areas are met from groundwater resources. In the last decades, rapid population growth coupled with agricultural expansion due to subsidized power to agriculture has significantly increased demand on groundwater resources. Combined to this, the effect of Global warming has put stress on ground water which is resulting in declines in water levels and deterioration of ground water quality. This may be evidenced by the fact that the phreatic aquifer which was in use two decades ago, is existing no more now in some of the parts of the study area and the water is being drawn from deeper aquifers beyond phreatic aquifers. The study has been carried out for which one or more elements are contaminated and to study its spatial distribution.

Effectiveness of riparian buffers in controlling ground-water discharge of nitrate to streams in selected hydrogeologic settings of the North Carolina Coastal Plain

2004 ◽  
Vol 49 (3) ◽  
pp. 63-70 ◽  
Author(s):  
T.B. Spruill
Keyword(s):  
Water Quality ◽  
North Carolina ◽  
Ground Water ◽  
Coastal Plain ◽  
Water Discharge ◽  
Relative Effectiveness ◽  
Surface Water Quality ◽  
Riparian Buffers ◽  
Flow Paths ◽  
The North

Water-quality and hydrologic information were collected along ground-water flow paths from two well-drained and two poorly drained Coastal Plain settings in North Carolina to evaluate the relative effectiveness of riparian buffers in reducing discharge of nitrate to streams. At one well-drained site with a 100 m buffer, little or no effect was detected on surface-water quality by discharging ground water because extensive woody vegetation in the buffer was able to take up not only most nitrate, but also most ground water before discharging to the stream during the growing season (March-October). At the second well-drained site, ground water discharging to the stream from the side with a buffer contained about 2 mg/L of nitrate-nitrogen after passing through the bed of the stream compared to 6 mg/L in ground water discharging from the side with no buffer. In the poorly drained settings, nitrate in ground water decreased from about 6 mg/L in the recharge area to less than 0.02 mg/L downgradient from the riparian buffer. Ground water discharging from the side with no buffer contained 0.83 mg/L. Riparian buffers appear effective in reducing nitrate in ground water discharging to Coastal Plain streams.

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