Study carried out to assess the quality of water in Gurara reservoir for irrigation purpose. Water samples were collected from forty five (45) different locations along the reservoir i.e. upstream, midstream and downstream for the determination of sixteen (16) physicochemical parameters following standard methods, based on these analyses, some irrigation parameters like, SAR, RSC, PI, KI, and SP  were also calculated following standard equations. The data ranged from 6.5 to 6.8pH, 70 to 75.6µmhocm^-1, 44.8 to 48 mgL^-1TDS, 2.4 to 4.2NTU turbidity, 23.8 to 26.1°C temperature, 5 to 30 mgL^-1 total hardness, 9.4 to 10.1 mgL^-1Cl^-, 0.033 to 0.41 meqL^-1 HCO^-_3, 0 to 1meqL^-1CO₃^-2, 0.02 to 0.399meqL^-1Ca²⁺, 0.016 to 0.255 meqL^-1 Mg²⁺, 0.11 to 0.123meqL^-1Na⁺,0.024 to 0.27meqL^-1 K⁺, 3.1 to 8.5mgL^-1 PO^-₄³, 0.2 to 1.08mgL^-1 NO₃^-,0.01to 0.08mgL^-1 SO₄^2-, -0.148 to 0.871meqL^-1RSC, 0.201 to 0.392meqL^-1SAR, 27.2 to 116.8meqL^-1PI,18.2 to 43.2meqL^-1SP and 0.185 to 0.607meqL^-1KI. Based on the guideline by FAO (Food and Agricultural Organization) interpretation of water quality for irrigation, the results of analyses and assessment of water quality from Gurara reservoir revealed that they are suitable for irrigation purposes.

Keywords: irrigation, water quality, Gurara, Reservoir