WATER QUALITY INDEX OF SHALLOW AND DEEP GROUNDWATER DURING WET AND DRY SEASON OF PESHAWARBASIN
Shahida Nasreen Zakir*, Samina Siddiqui*, Nasreen Ghaffar* and Zia Ul Haq**
ABSTRACT
The main objective of this study was to estimate the suitability of shallow and deep groundwater wells for human and animal consumption from water quality index for irrigation and drinking purpose. A total of 95 groundwater samples at 1.5 to 30 m depths were collected in triplicate during wet and dry seasons. All samples were analyzed for pH, EC, TDS, SO4 2-, HCO3 -1, CO3 -2,Cl-1, Ca2+, Mg2+, Na+ , Fe+3 and K+ The result of this study showed that according to water quality index (WQI) of WHO all groundwater samples were categorized as good water and considered suitable for drinking apart from a few exceptions. The Sodium Adsorption Ratio of all groundwater was less than 10. Some of the groundwater showed more than 2.5 meq L-1 of Residual Sodium Carbonate. This suggests that groundwater is suitable for irrigation purpose in all seasons.
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December 2012
Vol 31 No 2 (2012)
