Vol. 9, Special Issue 12, Part C (2025)

The investigation was carried out on ‘Assessment of ground water quality for irrigation in Tapi command area of Dhule district’ during the year 2024-25 with the objectives to assess the cation and anion concentration in irrigation water from Tapi command area of Dhule district and to classify water for its suitability for irrigation in Tapi command area. A systemic survey was carried out in Tapi river command area and depending upon the variation in physiographic units in the study area. Total 100 irrigation water samples (open well and tube well) were collected during the month of April and May 2024 at grid of 5 km x 5 km with GPS location. The samples were analyzed in the laboratory for cationic and ionic composition using standard procedures. The data thus obtained was interpreted with their relative properties and categorized as per ratings of irrigation water quality. In Tapi command area, about, 17% samples were in moderately high in Ca²⁺ content. Regarding Mg²⁺ content, 36% samples were high and 11% samples were in very high category. Regarding Na⁺ content, 25% samples were moderately high. About 24% samples were moderately high in CO₃^2-content. About 53% samples were injurious to unsuitable regarding Cl^-content.