The research work investigated the effect of leachate sludge waste materials from fish rearing pond on the geotechnical properties of soils from dumpsites. Results of investigations conducted on the control sites at 30m away from each dumpsite of bulk unit weight have incremental percentage values over control sites. Percentage (%) passing BS sieve #200 is higher in dumpsites over control with percentile value increase. Obtained results showed the presence of leachate material affects the physical properties of soil as percentages passing sieve #200 are higher in dumpsite materials. The consistency limits of the control sites of Liquid over plastic limits are summarized into the plastic index (LL-PL=PI), the obtained results indicated reductions values over dumpsites, this indicated that dumpsites leachate materials affected consistency limits of soils with higher values recorded in dumpsites. The entire results of grain size distribution showed that leachate percolation from waste materials affected the distribution properties of soil with dumpsites samples in dominants over control sites. Results indicated reductions in Unconfined compressive strength of control sites, these results showed that the presence of leachate materials has a great effect on soil properties of tested. The California bearing ration results of unsoaked and soaked of dumpsites have higher values over control sites. Results of California bearing ratio obtained showed that the presence of contaminants from waste dumpsites affected the geotechnical properties of tested soil with higher percentage values of dumpsites over control sites. The entire results showed that the presence of fish pond waste sludge has great negative effects on the geotechnical properties of soil.