Artesian well drilling rig, percussion drill. Cleaning all wells from sandy soil deposits, lowering all artesian well casings, deepening all old wells, and repairing broken submersible pumps. Work outside Riyadh and inside Riyadh. Diriyah, Al-Ammariya, Jubailah, Sudus, Naseem, Wadi Laban, Nizim, Sultana, Rimal district, periodic inspection, Al-Olayah, digging pits, preventing wall collapse. Engineer Ali