1 . I Content of lXe1,urt

This report covers the Climate. Hydrology and Water Resoirrces of Arsi and Bale Zones

7'he report is divided i n to five major sections described i l l the following.

Section 1 : Introduction

This section presents the introduction to the report and provides general information about the project area such as its location, physiopphy and ago-climatic zonation.

Section 2: Climate

The section deals with the climate of the project area. It provides pertinent climatic data at key stations in Arsi and Bale Zones and statistical aodysis of the same with illustrations on important results to serve as background informal ion for the study area.

Section : : Hydrology

This section presents the hydrological analysis and establishes hydrological design criteria for hydraulic structures. It also provides some information on major rivers flowing through the study area.

Section 4 Surface Water Resources

The section deals with the surface water resources of the srudy area.

Section 5: Conclusion and Recommendations

This section summarizes the findings and provides the Conclusion and Recommendations of the study.

1.2 Project Area

Arsi and Bale which are among the ~ o s t important zones of Oromia extend from the center to the south and east of the country(Fig. 1.2- 1 ) The project area includes the whole Arsi Zone and the northern part of Bale Zone. The portion of the project area which lies in the northern pan of Bale, according to the former administrative boundary, includes the ex- woredas of Dodola and Adaba in the Genale Awraja, all the ex-woredas in the Mendeyou Awraja (for the woreda of Goro, only h l f the territorial area) and the ex-woredas of Ginir and Gololcha in the Wabe Awraja: of these tow latter woredas, the area includes the portion bounded on the east by a line passing through Oda (southern Ginir), Mount Sera and Legehida (northern Goldcha) Fis.( 1.2-2)

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