pH

These River Water Quality Reports prepared by the Central Water Commission (CWC) summarise the river water data collected under its long term monitoring programme. The Central Water Commission monitors water quality at 371 key locations covering all the major river basins of India by maintaining a three tier laboratory system for analysis of 41 water quality parameters.

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This paper in Current Science indicates how aquifer storage and recovery (ASR) is an effective method of recharging reclaimed or surplus surface water into confined, or semi-confined permeable formations for later extraction as needed. A key factor in the long-term viability of aquifer storage and recovery is the extent of mineral interaction between two dissimilar water types, their recoverable fractions and consequent impact on water quality and aquifer stability.

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In this report, the suitability of groundwater of the Doon valley, Dehradun has been demonstrated on the basis of standards prescribed by BIS and WHO. The groundwater quality of the valley has been studied during 1996 to examine the suitability of water for irrigation and drinking purposes. Twelve water samples representing the shallow groundwater of the valley were collected during the pre-monsoon and post-monsoon seasons and analyzed for various constituents, viz. pH, conductance, total dissolved solids, alkalinity, hardness, chloride, sulphate, phosphate, sodium, potassium, calcium and magnesium.Read More

In the present study, surface and groundwater quality monitoring has been undertaken in parts of Udhampur district in Jammu and Kashmir in order to evaluate its quality for domestic and agricultural purposes. Water sources are polluted by four kinds of substances: traditional organic waste, waste generated from industrial processes, chemical agents of fertilizers & pesticides used for crop production and silt from degraded catchment.Read More