Groundwater aquifer from solid waste dumpsites is probable of discharging toxic pollutant to groundwater which is unsafe to human health and local ecosystem. This study was conducted to examine the physicochemical qualities of groundwater around solid waste dumpsite in Aba, Abia State during wet and dry seasons. The physicochemical analysis of the groundwater samples was determined in accordance with the standards of the American Public Health Association (APHA). The results obtained from the groundwater samples were compared with World Health Organization (WHO) and the Nigerian Standard for Drinking Water Quality (NSDWQ) permissible limit of those studied parameters in drinking water. The physicochemical values obtained from the groundwater around the dumpsite in both season shows that some of the tested parameters existed in values higher than both WHO and NSDWQ standards for drinking water quality. The results also showed that the concentrations of cadmium, aluminum, iron and zinc were within the WHO and NSDWQ standard, whereas, the concentrations of chromium, copper and lead exceeded the WHO and NSDWQ standards for drinking water quality in both studied seasons. Findings from this study suggest that dumpsite solid waste could impact negatively on some physicochemical qualities of groundwater sited around their vicinity. Therefore, the location of solid waste dumpsites around residential areas should be discouraged.