Abstract
Twenty-six (26) samples of Boreholes water at random from various locations including their coordinate location in Geidam and its environs of Yobe State Nigeria were collected and analyzed for Assessments of physicochemical elements and parameters including pH, turbidity, dissolved oxygen, cadmium, chromium, hardness, conductivity, lead, TDS, iron, and nickel were analyzed. The samples were drawn with 750ml containers and transport to the research laboratory and stored in refrigerator for preservation, a five (5) different device has been used when the physical parameter was physically observed like colour, odour and test of the sample while temperature, Turbidity, conductivity and pH was determined using thermometer, Turbid meter, conductivity meter and pH scale respectively, while digital spectrophotometer was used for the determination of lead, iron and chromium. The heavy metal concentrations were then extrapolated from the standard calibration curve. The results obtained of dissolved oxygen DO (mg/L) content at higher rate is 29.67mg/l in sample A8 and lowest content rate is 4.39mg/L at sample K5 that are all conformity with the W.H.O standard. The amount of chromium content in the samples A3 has the highest rate of 0.034 mg/L while sample K3 borehole water has the lowest rate of 0.00mg/L are all accordance with the standard. The iron concentration of 0.168 mg/L at higher rate from sample A6 borehole water and 0.004m/L at lowest rate from Sample K6, almost all the samples has higher value than the W.H.O specification of drinking water. The turbidity concentration is 22.75m/L at higher rate follow by H1 borehole of 17.37mg/L and lowest rate from sample K8, with 0.55ml/g indeed sample A3 has higher values of turbidity that are above the standard which can cause health impact to humans. The hardness of the water was found to be of 47.93mg/L is above the limit of W.H.O specification of drinking water while 1.17mg/l hardness is from K8 sample which lowest and acceptable limit of W.H.O. TDS content in drinking water from A3 is 221.23mg/l, has lower limit W.H.O level, K8 has lowest value of 5.19mg/. conductivity content is very high with 1007.58 ms/cm from A3 location with is not acceptable for drinking water furthermore electrical conductivity is high and other minerals deposited in the location while K8 sample has lowest value of 24.73 ms/cm. Nickel contents was found to be all the water samples are slightly lower than W.H.O standard except for A3 with 0.432mg/l as highest range while 0.001mg/l from K6 has lowest range value. Cadmium content sample K7 has 0.008mg/L is greater than the standard and samples H10, K4 and K5 has 0.001mg/l while the rest borehole has 0.000mg/L equally which is below the limits. The pH content range, sample A7 water borehole has a pH range of 9.89mg/L as the highest range and A4 borehole water has the lowest range of pH range of 2.93mg/L, pH values of difference water samples analysis are in accordance with the W.H.O standard. At turbidity was lower in all the borehole water samples, D.O of the water sample is also below the standard and TDS are also below the W.H.O standard. The parameters analyzed most generally conform to the W.H.O standard for drinking water.