Coal mining and ancillary activities have the potential to cause water pollution characterized by acid mine drainage, acid mine leachates, extreme pH conditions and heavy metal contaminations. In the present work, 33 water samples in premonsoon and 34 water samples in monsoon were collected from the surface water bodies of Ib Valley coalfield, India for hydrogeochemical analysis. In premonsoon, pH, TSS, Turbidity, DO, BOD, COD, Magnesium, Cadmium, Selenium, Nickel, Aluminum and in monsoon, pH, TSS, Turbidity, DO, BOD, COD, Iron, Cadmium, Selenium, Nickel and Aluminum were nonconforming to the permissible limit set by the Bureau of Indian Standards, World Health Organisation and Ministry of Environment, Forest and Climate Change, Government of India. The average BOD/COD ratio of less than 0.6 in both seasons indicated Ib valley coalfield water was not fairly biodegradable. The analysis of variance (ANOVA) revealed that significant seasonal variation (p < 0.05) was observed in the hydro-chemical parameters viz. TSS, turbidity, redox potential, acidity, total hardness, bicarbonate alkalinity, chloride, sulfate, nitrate, sodium, calcium, magnesium, iron, cadmium, chromium and magnesium during the entire sampling period. Whereas, no significant seasonal variation (p > 0.05) was observed in pH, EC, TDS, DO, BOD, residual chlorine, COD, oil and grease, fluoride, potassium, zinc, copper, selenium, nickel, aluminum, boron, silica, temperature, salinity, cyanide and phenol. Water Quality Index revealed that 39.39% and 35.29% samples belong to poor water quality category in premonsoon and monsoon, respectively. As per Heavy Metal Pollution Index, Degree of Contamination (Cd) and Heavy metal evaluation index, medium degree of pollution were exhibited by 51.52%, 30.30% and 45.45% samples in premonsoon and 20.59%, 35.29% and 26.47% samples in monsoon. Whereas, 5.88%, 2.94% and 5.88% samples were having high degree of pollution in monsoon and 15.15% samples caused high degree of pollution with respect to Cd in premonsoon. However, EC, Na%, PI, SAR and RSC values suggested that the water can be used for irrigation. Water type of the region had been found to be Ca–Mg–Cl–SO₄ by Piper diagram.

煤炭开采和辅助活动有可能造成水污染，其特征是酸性矿山排水、酸性矿山渗滤液、极端 pH 条件和重金属污染。在目前的工作中，从印度Ib Valley煤田地表水体采集了33个季风水样和34个季风水样进行水文地球化学分析。在季风中，pH、TSS、浊度、DO、BOD、COD、镁、镉、硒、镍、铝和在季风中，pH、TSS、浊度、DO、BOD、COD、铁、镉、硒、镍和铝分别为不符合印度标准局、世界卫生组织和印度政府环境、森林和气候变化部规定的允许限值。平均 BOD/COD 比值小于 0。两个季节的 6 表明 Ib 河谷煤田水不是完全可生物降解的。方差分析 (ANOVA) 显示显着的季节性变化 (p  < 0.05) 在水化学参数中观察到。整个采样期间的 TSS、浊度、氧化还原电位、酸度、总硬度、碳酸氢盐碱度、氯化物、硫酸盐、硝酸盐、钠、钙、镁、铁、镉、铬和镁。而没有显着的季节性变化（p > 0.05) 在 pH、EC、TDS、DO、BOD、余氯、COD、油和油脂、氟化物、钾、锌、铜、硒、镍、铝、硼、二氧化硅、温度、盐度、氰化物和苯酚中观察到. 水质指数显示，前季风和季风分别有39.39%和35.29%的样本属于较差水质类别。从重金属污染指数、污染程度（Cd）和重金属评价指标来看，季风前51.52%、30.30%和45.45%的样本和季风中20.59%、35.29%和26.47%的样本表现出中等污染程度。而 5.88%、2.94% 和 5.88% 的样品在季风中受到高度污染，15.15% 的样品在季风中对 Cd 造成高度污染。然而，EC、Na%、PI、SAR 和 RSC 值表明该水可用于灌溉。₄由派珀图。