Pollution is an important factor related to the quality of groundwater. The risk of groundwater pollution in a specific area can be related to the fluid actual velocity in the corresponding lithology. This research aims to mitigate potential pollutant contamination by developing a model to map the fluid actual velocity over a given area. Measurements of the level of water in wells, geographical coordinates were performed with piezometers. The modeling of the fluid actual velocity contours in the lithology was done with the software Surfer-13. The main equation used in this article is Darcy’s Law. Data are obtained from existing wells in community settlements with average depth between 10-15 meters. Most are located on spoil heap or on the weather layer which are prone to be contaminated by pollutants. The fluid velocity was 30-80 cm/day and the type of lithology was fine gravel pellet sand with large hydraulic conductivity. Based on the fluid actual velocity mapping, it is shown that Zones at risk of pollution are Zones 1, 2 and 4. This information can be used for proper land planning. In addition to the fluid velocity, it is also important to consider the presence of pollutants on the surface.

velocity, lithology, pollutant, conductivity, Darcy’s law.