Collected water samples and the corresponding average concentrations (ppm) of TDS, Na, Mg, Ca, Cl, SO4, and HCO3 for the fresh aquifer, El-Tor, Sinai.

Table 3: Collected water samples and the corresponding average concentrations (ppm) of TDS, Na, Mg, Ca, Cl, SO4, and HCO3 for the fresh aquifer, El-Tor, Sinai.

Locations (VES and Boreholes)	TDS	K	Na	Mg	Ca	Cl	SO₄	HCO₃
BH-1	1,137	3.21	319.2	16.9	86.8	556.7	87.2	52.2
BH-2	496	2.13	107.4	9.48	52.3	195.5	85.66	37.1
BH-3	1,679	5.0	445.4	23.1	128.9	845.5	129.2	74.5