Being a city, however, required thinking about issues such as sewage. Willow Glen had no sewer system – individual homes had their own cesspools or septic systems. Because the area was marshy before being drained for Willow Glen, the high water table resulted in raw sewage often spilling above-ground from flooded cesspools. Rather than build their own very expensive sewage treatment system, in 1936 Willow Glen's residents opted to be annexed to San Jose and be linked to San Jose's sewage system, the measure passing by a vote of 17 to 38.