The 1982-83 Environmental Planning Survey predicted 241 households as displaced people. The actual number of households displaced by Pak Mun dam was 1,700. Unpredicted by the EIA, a large number of households were adversely affected due to declining fishing yields. Until March 2000, 6,202 households were compensated for loss in fisheries during the 3-year construction period. Compensation for the permanent loss of fisheries has not been given.