ASSESSMENT OF SURFACE WATER QUALITY OF ERO DAM FOR IRRIGATION PURPOSE

The physicochemical parameters of surface water surface of Ero Dam for irrigation were assessed. Water samples were selected from three locations (upstream, downstream and control). Tested parameters for water samples are pH, electrical conductivity (EC), total dissolved solids (TDS), calcium (Ca2+), magnesium (Mg2+), sodium (Na+), potassium (K+), chloride (Cl-), carbonate (C03-), bicarbonate (HC03-), boron (B), sulphate (S042-), nitrate (NO3-N) and phosphate (PO4-P). The samples were determined in accordance with the American Public Health Association standards. Data were analysed using descriptive statistics. Evaluation of surface water quality of Ero Dam was carried out using different irrigation indices methods such as sodium adsorption ratio (SAR), residual sodium carbonate (RSC), sodium percentage (Na %), potential salinity (PS), The Soluble sodium percentage (SSP), Kelly ratio (KR), magnesium adsorption ratio (MAR) and permeability index (PI) and compared with standard limits. The findings indicated that the concentrations of the Ca2+, Mg2+, Na+, K+, Cl-, C03-, HC03-, B, S042-, NO3-N and PO4-P were within the acceptance limits for irrigation purposes except K+ that above the limits specified. Results indicated that majority, 87.5% of irrigation indices fall under excellent or suitable and classified as salinity (C1) and SAR (S1) which was known as (CISI). Hence, there are none degree of restriction in the application Ero Dam water quality for irrigation. Therefore, the results were concluded, that the study area surface water quality was suitable for irrigation.

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Tabular cusum control charts of chemical variables applied to the control of surface water quality

Engenharia Agrícola ◽

10.1590/s0100-69162012000500014 ◽

2012 ◽

Vol 32 (5) ◽

pp. 951-960 ◽

Cited By ~ 1

Author(s):

Franciele A. C. Follador ◽

Márcio A. Vilas Boas ◽

Marlise Schoenhals ◽

Eliane Hermes ◽

Clovis Rech

Keyword(s):

Water Quality ◽

Quality Control ◽

Surface Water ◽

Water Samples ◽

Control Charts ◽

Field Research ◽

Surface Water Quality ◽

Small Samples ◽

Cusum Control Charts

The aim of this study was to evaluate the application possibility of tabular CUSUM control charts in the quality control of chemical variables in surface water. It was performed bibliographic and field research to collect water samples from 2003 to 2009, totaling 30 samples, some monthly and others semi-annual in order to observe the variables that regulate water quality. It was found that these charts may be applied to control the quality of river water; showing to be effective in the perception of changes during the process, especially for small samples (n=1) which there is no repetition as in this research. It was also concluded that the Mandurim River does not presents significant levels of pollution.

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Assessment of Impacts of Acid Mine Drainage on Surface Water Quality of Tweelopiespruit Micro-Catchment, Limpopo Basin

Water Quality ◽

10.5772/65810 ◽

2017 ◽

Cited By ~ 1

Author(s):

Bloodless Dzwairo ◽

Munyaradzi Mujuru

Keyword(s):

Water Quality ◽

Surface Water ◽

Acid Mine Drainage ◽

Mine Drainage ◽

Surface Water Quality ◽

Acid Mine

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Assessment of Spatial Variations in Surface Water Quality of Kyeongan Stream, South Korea Using Multi-Variate Statistical Techniques

Alliance for Global Sustainability Bookseries - Sustainability in Food and Water ◽

10.1007/978-90-481-9914-3_5 ◽

2010 ◽

pp. 39-48 ◽

Cited By ~ 1

Author(s):

Janice B. Sevilla ◽

Chang Hee Lee ◽

Bum Yeon Lee

Keyword(s):

Water Quality ◽

Surface Water ◽

South Korea ◽

Surface Water Quality ◽

Spatial Variations ◽

Statistical Techniques

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Dynamics of changes in surface water quality indicators of the Western Bug River basin within Ukraine using GIS technologies

Journal of Water and Land Development ◽

10.2478/jwld-2019-0046 ◽

2019 ◽

Vol 42 (1) ◽

pp. 67-75 ◽

Cited By ~ 1

Author(s):

Igor Gopchak ◽

Tetiana Basiuk ◽

Ihor Bialyk ◽

Oleg Pinchuk ◽

Ievgenii Gerasimov

Keyword(s):

Water Quality ◽

Surface Water ◽

Environmental Assessment ◽

Land Surface ◽

Surface Water Quality ◽

Ecological Condition ◽

Toxic Substances ◽

Ecological Index ◽

Gis Technologies

Abstract The environmental assessment of the surface water quality of the Western Bug River has been made using the system of classification quality of land surface water of Ukraine in accordance with the approved methodology, which allows comparing water quality of separate areas of water objects of different regions. The calculation of the environmental assessment of water quality has been carried according to three blocks: block of salt composition, block of trophic and saprobic (ecological and sanitary) indicators and block of indicators of content of specific toxic substances. The results are presented in the form of a combined environmental assessment, based on the final conclusions of the three blocks and consists in calculating the integral ecological index. Comprehensive studies of changes in the water quality of the Western Bug River have been conducted within the territory of Ukraine for a long-term period. The water quality of the river on the final values of the integral indicators of the ecological condition corresponded mainly to 4nd category of the 3rd class – the water is “satisfactory” by condition and “little polluted” by degree of purity (except for points of observation that located within the Volyn region, where the water quality corresponded to 3rd category and the 2nd class. It is “good” by condition and “fairly clean” by the degree of purity). Visualization and part of the analysis are performed using GIS technologies in the software of the ArcGIS 10.3.

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