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This study aimed to analyze the suitability of surface water quality (ponds) in Padmanabhapuram Fort campus (8°14’49”–8°15’11”N, 77°19’26”–77°19’55”E) in the Kanyakumari district for irrigation purposes. There are six small ponds on that campus. At present, these ponds are completely polluted. To have an idea and find solution for the problem related to water usable for irrigation, we carried out analysis of important physico-chemical parameters like total hardness, the potential of hydrogen (pH), electrical conductivity, salinity, total dissolved solids, calcium, carbonate, bicarbonate, total alkalinity, and sodium by instrumental and analytical methods. Other parameters, which are deemed to be significant for water used for irrigation such as sodium absorption ratio (SAR), magnesium hazard (MH), sodium content (% Na), Permeability index (PI), residual sodium carbonate (RSC), Kelly ratio (KR) and soluble sodium percentage (SSP) are also derived by respective empirical formulas of these parameters.

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