As the San Diego-Tijuana region continues to get pounded by a series of storms, a trash boom strung across the Tijuana River channel is working flawlessly. Oscar Romo, project manager for Alter Terra, the group responsible for the boom, says by the time all the rain passes, the device is expected to have stopped about 50 tons of trash from Mexico. … “That’s a result of culture of just dumping — not always purposely done, but the city lacks good trash collection. People are also aware that the rain takes away the trash so previous to a rain they dump and we get all that,” Romo said.