*Research Officer, Monitoring Central Organisation, Central Water Commission, Nagpur, India
**Executive Engineer, Monitoring Central Organisation, Central Water Commission, Nagpur, India
***Superintending Engineer, Monitoring Central Organisation, Central Water Commission, Nagpur, India
****Chief Engineer, Monitoring Central Organisation, Central Water Commission, Nagpur, India
Online published on 18 January, 2018.
The Wainganga is one of the important tributary of the river Godavari which is lifeline of Southern part of India. The Wainganga basin has three principle parts viz. the Penganga, the Wardha and the Wainganga. In the beginning it flows eastward for a distance of about 175 km and then Southward for a length of about 100 km in Seoni and Balaghat District of Madhya predesh, further it flows a distance of about 479 km, in Bhandara, Chandrapur, and Gadchiroli District of Maharashtra before joining the Godavari. The Wainganga basin comprises the catchment area of the river up-to confluence of Godavari. The Wainganga drains an approx area of 1, 09, 000 sq km. Out of which 27.5 Percent is in Madhya Pradesh 66.1 Percent in Maharashtra and 6.4 Percent in Andhra Pradesh.
The physico-chemical parameters such as pH, Electrical Conductivity, Sodium Percentage, Boron, Sodium Adsorption Ratio, Residual Sodium Carbonate and Bacteriological Parameters such as Total Coliform and Faecal Coliform used as a standard for finding the suitability of irrigation water. Analysis of water at fifteen water quality monitoring stations in Wainganga basin and water quality data used for period of eleven year from June 2005 to May 2016 for comparative study from upstream to downstream and evaluate with designated use class of Inland surface water specifications (BIS 2296–1982) and other well known standards values mentioned for irrigation water.
The analysis results demonstrate significant changes in pH (6.3–9.8), Electrical Conductivity (36 to 2991), Sodium Percentage (2% to 63%), Boron (0.00 to 2.34 mg/L), Sodium Adsorption Ratio (0.05 to 6.32), Residual Sodium Carbonate (0.0 to 2.7), Total Coliform (20 to 120000 MPN/100ml), Faecal Coliform (10 to 120000 MPN/100 ml). Hence, it is observed that the values of nearly all of the stations of Wainganga basin most of times water quality parameters are within prescribed limit except the Total Coliform and Faecal Coliform.
Irrigation Water Quality, Wainganga Basin, upstream, downstream