 And yet, the dreaded came anyway this June when monsoon season arrived early here. And this isn't even a river. This is an arroyo. Flash flooding sent toxic debris from the wildfire burn scar into the Gallinas River, Las Vegas' water supply. It also swept away dumpsters, propane tanks, cars. Yolanda Cruz says people here weren't ready. Sandbags, one row of sandbags, 20 sandbags isn't going to help. Do you see those Tesco baskets? Yeah. They all came down. That whole place was flooded again.