Water quality monitoring is essential for continual availability of safe water for both domestic and industrial use. This work serves to identify potential risks from underground water sources sited around burial sites and also, to provide the initial data on the impact of such toxins on the water quality and the environment. Samples from 9 points (7 bore hole outlet and 2 dug wells) were taken within 500 metres circumference from Ayobo cemetery in Lagos, Nigeria and analysed for their physico-chemical properties using standard procedures. Results revealed that samples majorly had high salinity (5.5 ± 1.9), slightly acidic pH values (5.23 ± 0.94) and significantly elevated lead concentrations (0.63 ± 0.27) among the parameters measured. This acidity makes the water more vulnerable to metals dissolving in it. It is unclear if the sources of the salts are from the soil itself and/or compounds used for preparing the corpse for burial or the metal fittings and paints used in the finishing of the caskets being contributory to the lead contamination. This work forms the initial water quality for the Ayobo axis but more work is recommended to ascertain the precise source of these contaminants while initial water quality assessment should be carried out and documented before future cemeteries are sited. A regular monitoring and the use of buffers to neutralize the acidic water are recommended.
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