Even if the surface of the earth is mostly consists of water, very a small amount is usable that makes the resource limited. This precious and limited resource, therefore, must be used with care. The study carried out by taking samples of water from Kulfo River, Hare River, Abaya Lake, and Chamo Lake. This experiment was carried out to analyze selected physio-chemical parameter such as Potassium, Chloride, Acidity, TSS, TDS, TS, pH, Alkalinity, and Salinity by using different approaches.

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... ng to the study, Abaya lake sampling site was characterized with pH (8.5), alkalinity (278 mg/L), acidity (177mg/l). Water samples analysis from Chamo lake sampling site was characterized with pH (9.1), alkalinity (471 mg/L), acidity (130 mg/l). Kulfo River sampling site was characterized with pH (8.4), alkalinity (188 mg/L), acidity (117mg/l). Hare River sampling site was characterized with pH (7.8), alkalinity (105 mg/L), acidity (94 mg/l). The analysis of TS, TSS, and TDS has employed using gravimetric method. So, according to this method, TDS and TSS were high in Chamo Lake than Abaya Lake. In similar situation, Kulfo River has high amount of TS and TDS which is 1217 mg/L and 149.6 mg/L respectively when comparing with Hare River, Abaya Lake and Chamo Lake. This study also revealed that Chamo Lake is more saline than Abaya Lake. Therefore, almost all of the water sources are facing pollution problems which need great attention especially to educated peoples on the adverse impacts of their activities on the river water quality and subsequent effect on their health.