METAL (Molecular Magnetic Technology for Arsenic Removal) uses an external magnetic field to induce magnetic susceptibility in arsenic compounds, allowing their easy extraction from groundwater. This eco-friendly, chemical-free method aligns and isolates arsenic molecules, which are then removed through filtration. METAL is low-maintenance, cost-effective, and reduces arsenic levels to below 500 parts per billion, offering a sustainable and scalable solution to arsenic contamination in water sources.