(Portland, OR) -- City of Portland crews have fixed the city's largest sewer pump station. It froze in the extremely cold weather. Sewage was stored in the Big Pipe until the pump was fixed and now it's being moved to the city's wastewater treatment plant. There was no impact on the public and residents won't have to reduce flushing. A separate problem with a frozen generator caused sewage to back up into one home, instead of nearly a dozen homes as the city first reported.