Water Environment. 3.7.1 Water Quality Surface and groundwater samples were collected from different sources within the study area and some important physical and chemical parameters were considered for depicting the baseline status of the study area. The sources of surface water in the study area is given below- Location for water sampling sites is given in Table 3.9
Water Environment. The impact of mining project on groundwater hydrology and surface water regime are site specific and depends upon the characteristics of the mineral, hydrogeology and requirement of groundwater for other uses. Anticipated Impacts: ⮚ As there is no river or Nallah passing through the mine site, hence no impact is anticipated on the hydrological regime of the area due to mining activity. ⮚ No natural course of water stream is interrupted or diverted due to mining activity; hence no impact on natural drain is anticipated. ⮚ Surface run off distribution during rainy season may get affected due to excavated pits and overburden stack. ⮚ Runoff from the mining benches or from overburden during the rainy season may get contaminated. ⮚ Domestic sewage will be generated which can create contamination. Mitigation measures ⮚ Overall drainage planning has been done in such a manner that the existing premising drainage conditions will be maintained to the extent possible so that run off distribution is not affected. ⮚ Practically there is no overburden or reject generating from the mining activity, Moreover the excavated mineral itself is non-toxic and hence no effect due to water flow during rains following the contours of the area is expected.
Water Environment. 4.6.1 Ground Water No ground water extraction is to be carried out in the proposed project. Hence potential impacts on the ground water utilization are insignificant. The wastewater generated from the domestic use will be treated in STP. No wastewater will be disposed out of site premises or on land. Hence there will be no significant impact on ground water resources. Impact on Ground Water Resources& Water Quality Likely impact scores on ground water environment is presented in Table 4-16 as below: Table 4-16: Impact Scoring of Ground Water S. No Impacting Activity Impact Scoring Remarks C P C x P 1 Use of raw water 1 1 1 Low Risk as no ground water usage 2 Disposal of treated effluent 2 1 2 Low Risk 3 Storage and handling of hazardous chemicals 4 1 4 Moderate Risk as spill control mechanism will be in place C: Consequence; P: Probability; C x P: Final Score Mitigation Measures for Impacts on Water Resources Following mitigation measures will be implemented to reduce ground water related impacts: Hazardous waste storage area will be provided with the impervious flooring. Raw materials like solid and hazardous chemicals will be properly stored to avoid leakage. Solid wastes will be properly handled andtransported in closed containers.
Water Environment. 3 Nos. Surface water and 4 Nos. groundwater samples were collected from different sources within the study area and some important physical and chemical parameters were considered for depicting the baseline status of the study area. Observation of Ground Water ⮚ pH varies from 7.31 at GW1 to 7.86 at GW4 in the Study period. ⮚ Total Hardness varies from 160 mg/l at GW2 to 258 mg/l at GW4 in the Study Period. ⮚ Total dissolved solids vary from 308 mg/l at GW2 to 464 mg/l at GW4 in the Study period. Observation of Surface Water ⮚ pH varies from 7.32 at SW3 to 7.8 at SW1 in the Study period. ⮚ Chlorides varies from 38 mg/l at SW1 to 62 mg/l at SW3 in the Study Period. ⮚ Sulphates varies from 27 mg/l at SW1 to 58 mg/l at SW3 in the Study Period.
