Ghataprabha is an auxiliary of river Krishna and flows over Chandgad taluk of Kolhapur district, Maharashtra. Bauxite mining was one of the major issues in this part of the sub-basin, in the early’ 90s due to which there was a strong public protest about the quality of water. Accordingly, a survey was conducted to get the public perception on water pollution in the headwater catchment of Ghataprabha sub-basin. During the survey, a broad opinion was expressed with regard to water quality contamination of Ghataprabha river by a section of the society living in the riparian zones of the river basin. Therefore, in this paper, an effort has been done to understand the in variation in water quality with special reference to groundwater. Thirty-eight groundwater samples (nineteen each from before and after rainy season) were assembled and analysed for EC, TDS, pH, chlorine ion HCO 3 , SO 4 , PO 4 , Ca, Mg, Na and K. The values have shown that the density of all measured factors is broadly within the permissible limits (as per BIS Standards), before and after-monsoon. The present observations do compared with the earlier reported parameters of the year 2000. The results show that there is a betterment of water quality in the mining field as compared to previous data. This clearly demonstrates that the mining area can be reclaimed over the years by taking appropriate conservation measures. However, ionic ratios such as SAR, KR and SSP showed considerable variations indicating that there is localised impact on water quality resulting in the groundwater pollution. DRASTIC indices were computed based on hydrogeological characteristics and found that more than 30% of the observatory wells are contaminated where the nitrates are very high (more than 45mg/L) which clearly demonstrated that groundwater is getting polluted in high intense agriculture areas and also in areas close to settlements.

中文翻译：

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使用 DRASTIC 指数评价 Ghataprabha 部分盆地地下水地球化学特征

Ghataprabha 是克里希纳河的支流，流经马哈拉施特拉邦 Kolhapur 区的 Chandgad taluk。铝土矿开采是该子流域这一部分的主要问题之一，在 90 年代初，公众对水的质量提出了强烈抗议。因此，进行了一项调查，以了解公众对 Ghataprabha 子流域源头集水区水污染的看法。在调查过程中，生活在流域河岸地区的部分社会人士对加塔普拉巴河的水质污染发表了广泛的意见。因此，在本文中，特别参考地下水，努力了解水质的变化。收集了 38 个地下水样品（雨季前后各 19 个）并分析了 EC，TDS、pH、氯离子 HCO 3 、SO 4 、PO 4 、Ca、Mg、Na 和 K。 数值显示所有测量因子的密度大致在允许的范围内（根据 BIS 标准），前后-季风。目前的观察确实与早先报告的 2000 年的参数进行了比较。结果表明，与以前的数据相比，采矿场的水质有所改善。这清楚地表明，通过采取适当的保护措施，矿区可以多年复垦。然而，SAR、KR 和 SSP 等离子比率显示出相当大的变化，表明对水质的局部影响导致地下水污染。