"Historically, these are extremely low water levels that have not been this critical in decades," says the director of a Colombian risk management unit in front of the Amazon River, now reduced by 90 percent due to extreme drought. On a government press trip, Colombian authorities tell AFP they fear the consequences of the drought will be "greater" and affect access to drinking water for the region's population. IMAGES AND SOUNDBITES [TO COMPLETE 36H88FT_EN]