Althrough the annual rainfall in the watershed is relativelymoderated the availability of groundwater is problematicbecause of the following reasons, i. Low recharge rate, ii.Generally high runoff mainly, iii. Unsuitable aquifer conditionsover the parts of coastal areas, iv. Low and hot dry seasons, v.Excess with drawls of groundwater in parts of the easternalluvial tract, for irrigation purposes have causes continuous lowering of the groundwater label over the years.