This study is a result of an official request from the Guatemalan Government through USAID/Guatemala and AID/Washington to Utah State University for Technical Assistance in Drainage and Irrigation. The following plan of work was suggested: (A) Evaluate actual drainage and salinization problem in Monjas Irrigation District in southeastern Guatemala; (B) Establish the bases for a general reconnaissance detailed survey of Ministry irrigation operations, and determine the actual status of available information; and (C) Develop a scope of work for feasibility studies leading to a national irrigation and drainage plan for 8000 hectares of irrigated land.