(Time) — Sitting alongside a pool of water, the women wash their clothes in oversized-tin basins. But the sound of water sloshing against stone washboards is drowned out by the monstrous dump trucks transporting tons of rubble from the Jan. 12 earthquake. Rivière Grise, stretching from La Viste national park, to the south of Port-au-Prince, to the capital’s bay, has become an illegal dumping site for debris. “They usually come at night to dump the rubble. They used to dump during the day but then we started to run after them,” says Jesner Jeanjul, 47, who has lived in the area known as Ti Moulin all of her life. Jeanjul says she would wake up each morning and there would be new piles of rubble in the riverbed. Merely a trickle now, the waterway usually overflows during heavy rains — and locals are afraid of catastrophe now that its course is obstructed with huge pieces of concrete and rock.